30 files changed, 1512 insertions, 1724 deletions

diff --git a/server/tests/api/check-params/abuses.ts b/server/tests/api/check-params/abuses.ts
index 2054776cc..72f2cbd8f 100644
--- a/server/tests/api/check-params/abuses.ts
+++ b/server/tests/api/check-params/abuses.ts
@@ -1,66 +1,49 @@
 /* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
 
 import 'mocha'
-import { AbuseCreate, AbuseState } from '@shared/models'
 import {
-  addAbuseMessage,
+  AbusesCommand,
+  checkBadCountPagination,
+  checkBadSortPagination,
+  checkBadStartPagination,
   cleanupTests,
-  createUser,
-  deleteAbuse,
-  deleteAbuseMessage,
+  createSingleServer,
   doubleFollow,
-  flushAndRunServer,
-  generateUserAccessToken,
-  getAdminAbusesList,
-  getVideoIdFromUUID,
-  listAbuseMessages,
   makeGetRequest,
   makePostBodyRequest,
-  reportAbuse,
-  ServerInfo,
+  PeerTubeServer,
   setAccessTokensToServers,
-  updateAbuse,
-  uploadVideo,
-  userLogin,
   waitJobs
-} from '../../../../shared/extra-utils'
-import {
-  checkBadCountPagination,
-  checkBadSortPagination,
-  checkBadStartPagination
-} from '../../../../shared/extra-utils/requests/check-api-params'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
+} from '@shared/extra-utils'
+import { AbuseCreate, AbuseState, HttpStatusCode } from '@shared/models'
 
 describe('Test abuses API validators', function () {
   const basePath = '/api/v1/abuses/'
 
-  let server: ServerInfo
+  let server: PeerTubeServer
 
-  let userAccessToken = ''
-  let userAccessToken2 = ''
+  let userToken = ''
+  let userToken2 = ''
   let abuseId: number
   let messageId: number
 
+  let command: AbusesCommand
+
   // ---------------------------------------------------------------
 
   before(async function () {
     this.timeout(30000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
 
     await setAccessTokensToServers([ server ])
 
-    const username = 'user1'
-    const password = 'my super password'
-    await createUser({ url: server.url, accessToken: server.accessToken, username: username, password: password })
-    userAccessToken = await userLogin(server, { username, password })
+    userToken = await server.users.generateUserAndToken('user_1')
+    userToken2 = await server.users.generateUserAndToken('user_2')
 
-    {
-      userAccessToken2 = await generateUserAccessToken(server, 'user_2')
-    }
+    server.store.video = await server.videos.upload()
 
-    const res = await uploadVideo(server.url, server.accessToken, {})
-    server.video = res.body.video
+    command = server.abuses
   })
 
   describe('When listing abuses for admins', function () {
@@ -82,7 +65,7 @@ describe('Test abuses API validators', function () {
       await makeGetRequest({
         url: server.url,
         path,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -90,8 +73,8 @@ describe('Test abuses API validators', function () {
       await makeGetRequest({
         url: server.url,
         path,
-        token: userAccessToken,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        token: userToken,
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
 
@@ -126,7 +109,7 @@ describe('Test abuses API validators', function () {
         videoIs: 'deleted'
       }
 
-      await makeGetRequest({ url: server.url, path, token: server.accessToken, query, statusCodeExpected: HttpStatusCode.OK_200 })
+      await makeGetRequest({ url: server.url, path, token: server.accessToken, query, expectedStatus: HttpStatusCode.OK_200 })
     })
   })
 
@@ -134,32 +117,32 @@ describe('Test abuses API validators', function () {
     const path = '/api/v1/users/me/abuses'
 
     it('Should fail with a bad start pagination', async function () {
-      await checkBadStartPagination(server.url, path, userAccessToken)
+      await checkBadStartPagination(server.url, path, userToken)
     })
 
     it('Should fail with a bad count pagination', async function () {
-      await checkBadCountPagination(server.url, path, userAccessToken)
+      await checkBadCountPagination(server.url, path, userToken)
     })
 
     it('Should fail with an incorrect sort', async function () {
-      await checkBadSortPagination(server.url, path, userAccessToken)
+      await checkBadSortPagination(server.url, path, userToken)
     })
 
     it('Should fail with a non authenticated user', async function () {
       await makeGetRequest({
         url: server.url,
         path,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
     it('Should fail with a bad id filter', async function () {
-      await makeGetRequest({ url: server.url, path, token: userAccessToken, query: { id: 'toto' } })
+      await makeGetRequest({ url: server.url, path, token: userToken, query: { id: 'toto' } })
     })
 
     it('Should fail with a bad state filter', async function () {
-      await makeGetRequest({ url: server.url, path, token: userAccessToken, query: { state: 'toto' } })
-      await makeGetRequest({ url: server.url, path, token: userAccessToken, query: { state: 0 } })
+      await makeGetRequest({ url: server.url, path, token: userToken, query: { state: 'toto' } })
+      await makeGetRequest({ url: server.url, path, token: userToken, query: { state: 0 } })
     })
 
     it('Should succeed with the correct params', async function () {
@@ -168,7 +151,7 @@ describe('Test abuses API validators', function () {
         state: 2
       }
 
-      await makeGetRequest({ url: server.url, path, token: userAccessToken, query, statusCodeExpected: HttpStatusCode.OK_200 })
+      await makeGetRequest({ url: server.url, path, token: userToken, query, expectedStatus: HttpStatusCode.OK_200 })
     })
   })
 
@@ -177,12 +160,12 @@ describe('Test abuses API validators', function () {
 
     it('Should fail with nothing', async function () {
       const fields = {}
-      await makePostBodyRequest({ url: server.url, path, token: userAccessToken, fields })
+      await makePostBodyRequest({ url: server.url, path, token: userToken, fields })
     })
 
     it('Should fail with a wrong video', async function () {
       const fields = { video: { id: 'blabla' }, reason: 'my super reason' }
-      await makePostBodyRequest({ url: server.url, path: path, token: userAccessToken, fields })
+      await makePostBodyRequest({ url: server.url, path: path, token: userToken, fields })
     })
 
     it('Should fail with an unknown video', async function () {
@@ -190,15 +173,15 @@ describe('Test abuses API validators', function () {
       await makePostBodyRequest({
         url: server.url,
         path,
-        token: userAccessToken,
+        token: userToken,
         fields,
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+        expectedStatus: HttpStatusCode.NOT_FOUND_404
       })
     })
 
     it('Should fail with a wrong comment', async function () {
       const fields = { comment: { id: 'blabla' }, reason: 'my super reason' }
-      await makePostBodyRequest({ url: server.url, path: path, token: userAccessToken, fields })
+      await makePostBodyRequest({ url: server.url, path: path, token: userToken, fields })
     })
 
     it('Should fail with an unknown comment', async function () {
@@ -206,15 +189,15 @@ describe('Test abuses API validators', function () {
       await makePostBodyRequest({
         url: server.url,
         path,
-        token: userAccessToken,
+        token: userToken,
         fields,
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+        expectedStatus: HttpStatusCode.NOT_FOUND_404
       })
     })
 
     it('Should fail with a wrong account', async function () {
       const fields = { account: { id: 'blabla' }, reason: 'my super reason' }
-      await makePostBodyRequest({ url: server.url, path: path, token: userAccessToken, fields })
+      await makePostBodyRequest({ url: server.url, path: path, token: userToken, fields })
     })
 
     it('Should fail with an unknown account', async function () {
@@ -222,9 +205,9 @@ describe('Test abuses API validators', function () {
       await makePostBodyRequest({
         url: server.url,
         path,
-        token: userAccessToken,
+        token: userToken,
         fields,
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+        expectedStatus: HttpStatusCode.NOT_FOUND_404
       })
     })
 
@@ -233,65 +216,65 @@ describe('Test abuses API validators', function () {
       await makePostBodyRequest({
         url: server.url,
         path,
-        token: userAccessToken,
+        token: userToken,
         fields,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
     it('Should fail with a non authenticated user', async function () {
-      const fields = { video: { id: server.video.id }, reason: 'my super reason' }
+      const fields = { video: { id: server.store.video.id }, reason: 'my super reason' }
 
-      await makePostBodyRequest({ url: server.url, path, token: 'hello', fields, statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401 })
+      await makePostBodyRequest({ url: server.url, path, token: 'hello', fields, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail with a reason too short', async function () {
-      const fields = { video: { id: server.video.id }, reason: 'h' }
+      const fields = { video: { id: server.store.video.id }, reason: 'h' }
 
-      await makePostBodyRequest({ url: server.url, path, token: userAccessToken, fields })
+      await makePostBodyRequest({ url: server.url, path, token: userToken, fields })
     })
 
     it('Should fail with a too big reason', async function () {
-      const fields = { video: { id: server.video.id }, reason: 'super'.repeat(605) }
+      const fields = { video: { id: server.store.video.id }, reason: 'super'.repeat(605) }
 
-      await makePostBodyRequest({ url: server.url, path, token: userAccessToken, fields })
+      await makePostBodyRequest({ url: server.url, path, token: userToken, fields })
     })
 
     it('Should succeed with the correct parameters (basic)', async function () {
-      const fields: AbuseCreate = { video: { id: server.video.shortUUID }, reason: 'my super reason' }
+      const fields: AbuseCreate = { video: { id: server.store.video.shortUUID }, reason: 'my super reason' }
 
       const res = await makePostBodyRequest({
         url: server.url,
         path,
-        token: userAccessToken,
+        token: userToken,
         fields,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
       abuseId = res.body.abuse.id
     })
 
     it('Should fail with a wrong predefined reason', async function () {
-      const fields = { video: { id: server.video.id }, reason: 'my super reason', predefinedReasons: [ 'wrongPredefinedReason' ] }
+      const fields = { video: { id: server.store.video.id }, reason: 'my super reason', predefinedReasons: [ 'wrongPredefinedReason' ] }
 
-      await makePostBodyRequest({ url: server.url, path, token: userAccessToken, fields })
+      await makePostBodyRequest({ url: server.url, path, token: userToken, fields })
     })
 
     it('Should fail with negative timestamps', async function () {
-      const fields = { video: { id: server.video.id, startAt: -1 }, reason: 'my super reason' }
+      const fields = { video: { id: server.store.video.id, startAt: -1 }, reason: 'my super reason' }
 
-      await makePostBodyRequest({ url: server.url, path, token: userAccessToken, fields })
+      await makePostBodyRequest({ url: server.url, path, token: userToken, fields })
     })
 
     it('Should fail mith misordered startAt/endAt', async function () {
-      const fields = { video: { id: server.video.id, startAt: 5, endAt: 1 }, reason: 'my super reason' }
+      const fields = { video: { id: server.store.video.id, startAt: 5, endAt: 1 }, reason: 'my super reason' }
 
-      await makePostBodyRequest({ url: server.url, path, token: userAccessToken, fields })
+      await makePostBodyRequest({ url: server.url, path, token: userToken, fields })
     })
 
     it('Should succeed with the corret parameters (advanced)', async function () {
       const fields: AbuseCreate = {
         video: {
-          id: server.video.id,
+          id: server.store.video.id,
           startAt: 1,
           endAt: 5
         },
@@ -299,37 +282,37 @@ describe('Test abuses API validators', function () {
         predefinedReasons: [ 'serverRules' ]
       }
 
-      await makePostBodyRequest({ url: server.url, path, token: userAccessToken, fields, statusCodeExpected: HttpStatusCode.OK_200 })
+      await makePostBodyRequest({ url: server.url, path, token: userToken, fields, expectedStatus: HttpStatusCode.OK_200 })
     })
   })
 
   describe('When updating an abuse', function () {
 
     it('Should fail with a non authenticated user', async function () {
-      await updateAbuse(server.url, 'blabla', abuseId, {}, HttpStatusCode.UNAUTHORIZED_401)
+      await command.update({ token: 'blabla', abuseId, body: {}, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail with a non admin user', async function () {
-      await updateAbuse(server.url, userAccessToken, abuseId, {}, HttpStatusCode.FORBIDDEN_403)
+      await command.update({ token: userToken, abuseId, body: {}, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
     })
 
     it('Should fail with a bad abuse id', async function () {
-      await updateAbuse(server.url, server.accessToken, 45, {}, HttpStatusCode.NOT_FOUND_404)
+      await command.update({ abuseId: 45, body: {}, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
 
     it('Should fail with a bad state', async function () {
       const body = { state: 5 }
-      await updateAbuse(server.url, server.accessToken, abuseId, body, HttpStatusCode.BAD_REQUEST_400)
+      await command.update({ abuseId, body, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
     })
 
     it('Should fail with a bad moderation comment', async function () {
       const body = { moderationComment: 'b'.repeat(3001) }
-      await updateAbuse(server.url, server.accessToken, abuseId, body, HttpStatusCode.BAD_REQUEST_400)
+      await command.update({ abuseId, body, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
     })
 
     it('Should succeed with the correct params', async function () {
       const body = { state: AbuseState.ACCEPTED }
-      await updateAbuse(server.url, server.accessToken, abuseId, body)
+      await command.update({ abuseId, body })
     })
   })
 
@@ -337,23 +320,23 @@ describe('Test abuses API validators', function () {
     const message = 'my super message'
 
     it('Should fail with an invalid abuse id', async function () {
-      await addAbuseMessage(server.url, userAccessToken2, 888, message, HttpStatusCode.NOT_FOUND_404)
+      await command.addMessage({ token: userToken2, abuseId: 888, message, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
 
     it('Should fail with a non authenticated user', async function () {
-      await addAbuseMessage(server.url, 'fake_token', abuseId, message, HttpStatusCode.UNAUTHORIZED_401)
+      await command.addMessage({ token: 'fake_token', abuseId, message, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail with an invalid logged in user', async function () {
-      await addAbuseMessage(server.url, userAccessToken2, abuseId, message, HttpStatusCode.FORBIDDEN_403)
+      await command.addMessage({ token: userToken2, abuseId, message, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
     })
 
     it('Should fail with an invalid message', async function () {
-      await addAbuseMessage(server.url, userAccessToken, abuseId, 'a'.repeat(5000), HttpStatusCode.BAD_REQUEST_400)
+      await command.addMessage({ token: userToken, abuseId, message: 'a'.repeat(5000), expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
     })
 
     it('Should suceed with the correct params', async function () {
-      const res = await addAbuseMessage(server.url, userAccessToken, abuseId, message)
+      const res = await command.addMessage({ token: userToken, abuseId, message })
       messageId = res.body.abuseMessage.id
     })
   })
@@ -361,96 +344,90 @@ describe('Test abuses API validators', function () {
   describe('When listing abuse messages', function () {
 
     it('Should fail with an invalid abuse id', async function () {
-      await listAbuseMessages(server.url, userAccessToken, 888, HttpStatusCode.NOT_FOUND_404)
+      await command.listMessages({ token: userToken, abuseId: 888, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
 
     it('Should fail with a non authenticated user', async function () {
-      await listAbuseMessages(server.url, 'fake_token', abuseId, HttpStatusCode.UNAUTHORIZED_401)
+      await command.listMessages({ token: 'fake_token', abuseId, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail with an invalid logged in user', async function () {
-      await listAbuseMessages(server.url, userAccessToken2, abuseId, HttpStatusCode.FORBIDDEN_403)
+      await command.listMessages({ token: userToken2, abuseId, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
     })
 
     it('Should succeed with the correct params', async function () {
-      await listAbuseMessages(server.url, userAccessToken, abuseId)
+      await command.listMessages({ token: userToken, abuseId })
     })
   })
 
   describe('When deleting an abuse message', function () {
-
     it('Should fail with an invalid abuse id', async function () {
-      await deleteAbuseMessage(server.url, userAccessToken, 888, messageId, HttpStatusCode.NOT_FOUND_404)
+      await command.deleteMessage({ token: userToken, abuseId: 888, messageId, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
 
     it('Should fail with an invalid message id', async function () {
-      await deleteAbuseMessage(server.url, userAccessToken, abuseId, 888, HttpStatusCode.NOT_FOUND_404)
+      await command.deleteMessage({ token: userToken, abuseId, messageId: 888, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
 
     it('Should fail with a non authenticated user', async function () {
-      await deleteAbuseMessage(server.url, 'fake_token', abuseId, messageId, HttpStatusCode.UNAUTHORIZED_401)
+      await command.deleteMessage({ token: 'fake_token', abuseId, messageId, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail with an invalid logged in user', async function () {
-      await deleteAbuseMessage(server.url, userAccessToken2, abuseId, messageId, HttpStatusCode.FORBIDDEN_403)
+      await command.deleteMessage({ token: userToken2, abuseId, messageId, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
     })
 
     it('Should succeed with the correct params', async function () {
-      await deleteAbuseMessage(server.url, userAccessToken, abuseId, messageId)
+      await command.deleteMessage({ token: userToken, abuseId, messageId })
     })
   })
 
   describe('When deleting a video abuse', function () {
 
     it('Should fail with a non authenticated user', async function () {
-      await deleteAbuse(server.url, 'blabla', abuseId, HttpStatusCode.UNAUTHORIZED_401)
+      await command.delete({ token: 'blabla', abuseId, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail with a non admin user', async function () {
-      await deleteAbuse(server.url, userAccessToken, abuseId, HttpStatusCode.FORBIDDEN_403)
+      await command.delete({ token: userToken, abuseId, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
     })
 
     it('Should fail with a bad abuse id', async function () {
-      await deleteAbuse(server.url, server.accessToken, 45, HttpStatusCode.NOT_FOUND_404)
+      await command.delete({ abuseId: 45, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
 
     it('Should succeed with the correct params', async function () {
-      await deleteAbuse(server.url, server.accessToken, abuseId)
+      await command.delete({ abuseId })
     })
   })
 
   describe('When trying to manage messages of a remote abuse', function () {
     let remoteAbuseId: number
-    let anotherServer: ServerInfo
+    let anotherServer: PeerTubeServer
 
     before(async function () {
       this.timeout(50000)
 
-      anotherServer = await flushAndRunServer(2)
+      anotherServer = await createSingleServer(2)
       await setAccessTokensToServers([ anotherServer ])
 
       await doubleFollow(anotherServer, server)
 
-      const server2VideoId = await getVideoIdFromUUID(anotherServer.url, server.video.uuid)
-      await reportAbuse({
-        url: anotherServer.url,
-        token: anotherServer.accessToken,
-        reason: 'remote server',
-        videoId: server2VideoId
-      })
+      const server2VideoId = await anotherServer.videos.getId({ uuid: server.store.video.uuid })
+      await anotherServer.abuses.report({ reason: 'remote server', videoId: server2VideoId })
 
       await waitJobs([ server, anotherServer ])
 
-      const res = await getAdminAbusesList({ url: server.url, token: server.accessToken, sort: '-createdAt' })
-      remoteAbuseId = res.body.data[0].id
+      const body = await command.getAdminList({ sort: '-createdAt' })
+      remoteAbuseId = body.data[0].id
     })
 
     it('Should fail when listing abuse messages of a remote abuse', async function () {
-      await listAbuseMessages(server.url, server.accessToken, remoteAbuseId, HttpStatusCode.BAD_REQUEST_400)
+      await command.listMessages({ abuseId: remoteAbuseId, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
     })
 
     it('Should fail when creating abuse message of a remote abuse', async function () {
-      await addAbuseMessage(server.url, server.accessToken, remoteAbuseId, 'message', HttpStatusCode.BAD_REQUEST_400)
+      await command.addMessage({ abuseId: remoteAbuseId, message: 'message', expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
     })
 
     after(async function () {
diff --git a/server/tests/api/check-params/accounts.ts b/server/tests/api/check-params/accounts.ts
index d1712cff6..141d869b7 100644
--- a/server/tests/api/check-params/accounts.ts
+++ b/server/tests/api/check-params/accounts.ts
@@ -1,26 +1,26 @@
 /* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
 
 import 'mocha'
-
-import { cleanupTests, flushAndRunServer, ServerInfo } from '../../../../shared/extra-utils'
 import {
   checkBadCountPagination,
   checkBadSortPagination,
-  checkBadStartPagination
-} from '../../../../shared/extra-utils/requests/check-api-params'
-import { getAccount } from '../../../../shared/extra-utils/users/accounts'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
+  checkBadStartPagination,
+  cleanupTests,
+  createSingleServer,
+  PeerTubeServer
+} from '@shared/extra-utils'
+import { HttpStatusCode } from '@shared/models'
 
 describe('Test accounts API validators', function () {
   const path = '/api/v1/accounts/'
-  let server: ServerInfo
+  let server: PeerTubeServer
 
   // ---------------------------------------------------------------
 
   before(async function () {
     this.timeout(30000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
   })
 
   describe('When listing accounts', function () {
@@ -38,8 +38,9 @@ describe('Test accounts API validators', function () {
   })
 
   describe('When getting an account', function () {
+
     it('Should return 404 with a non existing name', async function () {
-      await getAccount(server.url, 'arfaze', HttpStatusCode.NOT_FOUND_404)
+      await server.accounts.get({ accountName: 'arfaze', expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
   })
 
diff --git a/server/tests/api/check-params/blocklist.ts b/server/tests/api/check-params/blocklist.ts
index 5ed8810ce..7d5fae5cf 100644
--- a/server/tests/api/check-params/blocklist.ts
+++ b/server/tests/api/check-params/blocklist.ts
@@ -1,43 +1,38 @@
 /* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
 
 import 'mocha'
-
 import {
+  checkBadCountPagination,
+  checkBadSortPagination,
+  checkBadStartPagination,
   cleanupTests,
-  createUser,
+  createMultipleServers,
   doubleFollow,
-  flushAndRunMultipleServers,
   makeDeleteRequest,
   makeGetRequest,
   makePostBodyRequest,
-  ServerInfo,
-  setAccessTokensToServers,
-  userLogin
-} from '../../../../shared/extra-utils'
-import {
-  checkBadCountPagination,
-  checkBadSortPagination,
-  checkBadStartPagination
-} from '../../../../shared/extra-utils/requests/check-api-params'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
+  PeerTubeServer,
+  setAccessTokensToServers
+} from '@shared/extra-utils'
+import { HttpStatusCode } from '@shared/models'
 
 describe('Test blocklist API validators', function () {
-  let servers: ServerInfo[]
-  let server: ServerInfo
+  let servers: PeerTubeServer[]
+  let server: PeerTubeServer
   let userAccessToken: string
 
   before(async function () {
     this.timeout(60000)
 
-    servers = await flushAndRunMultipleServers(2)
+    servers = await createMultipleServers(2)
     await setAccessTokensToServers(servers)
 
     server = servers[0]
 
     const user = { username: 'user1', password: 'password' }
-    await createUser({ url: server.url, accessToken: server.accessToken, username: user.username, password: user.password })
+    await server.users.create({ username: user.username, password: user.password })
 
-    userAccessToken = await userLogin(server, user)
+    userAccessToken = await server.login.getAccessToken(user)
 
     await doubleFollow(servers[0], servers[1])
   })
@@ -54,7 +49,7 @@ describe('Test blocklist API validators', function () {
           await makeGetRequest({
             url: server.url,
             path,
-            statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+            expectedStatus: HttpStatusCode.UNAUTHORIZED_401
           })
         })
 
@@ -77,7 +72,7 @@ describe('Test blocklist API validators', function () {
             url: server.url,
             path,
             fields: { accountName: 'user1' },
-            statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+            expectedStatus: HttpStatusCode.UNAUTHORIZED_401
           })
         })
 
@@ -87,7 +82,7 @@ describe('Test blocklist API validators', function () {
             token: server.accessToken,
             path,
             fields: { accountName: 'user2' },
-            statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+            expectedStatus: HttpStatusCode.NOT_FOUND_404
           })
         })
 
@@ -97,7 +92,7 @@ describe('Test blocklist API validators', function () {
             token: server.accessToken,
             path,
             fields: { accountName: 'root' },
-            statusCodeExpected: HttpStatusCode.CONFLICT_409
+            expectedStatus: HttpStatusCode.CONFLICT_409
           })
         })
 
@@ -107,7 +102,7 @@ describe('Test blocklist API validators', function () {
             token: server.accessToken,
             path,
             fields: { accountName: 'user1' },
-            statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+            expectedStatus: HttpStatusCode.NO_CONTENT_204
           })
         })
       })
@@ -117,7 +112,7 @@ describe('Test blocklist API validators', function () {
           await makeDeleteRequest({
             url: server.url,
             path: path + '/user1',
-            statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+            expectedStatus: HttpStatusCode.UNAUTHORIZED_401
           })
         })
 
@@ -126,7 +121,7 @@ describe('Test blocklist API validators', function () {
             url: server.url,
             path: path + '/user2',
             token: server.accessToken,
-            statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+            expectedStatus: HttpStatusCode.NOT_FOUND_404
           })
         })
 
@@ -135,7 +130,7 @@ describe('Test blocklist API validators', function () {
             url: server.url,
             path: path + '/user1',
             token: server.accessToken,
-            statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+            expectedStatus: HttpStatusCode.NO_CONTENT_204
           })
         })
       })
@@ -149,7 +144,7 @@ describe('Test blocklist API validators', function () {
           await makeGetRequest({
             url: server.url,
             path,
-            statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+            expectedStatus: HttpStatusCode.UNAUTHORIZED_401
           })
         })
 
@@ -172,7 +167,7 @@ describe('Test blocklist API validators', function () {
             url: server.url,
             path,
             fields: { host: 'localhost:9002' },
-            statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+            expectedStatus: HttpStatusCode.UNAUTHORIZED_401
           })
         })
 
@@ -182,7 +177,7 @@ describe('Test blocklist API validators', function () {
             token: server.accessToken,
             path,
             fields: { host: 'localhost:9003' },
-            statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+            expectedStatus: HttpStatusCode.NO_CONTENT_204
           })
         })
 
@@ -192,7 +187,7 @@ describe('Test blocklist API validators', function () {
             token: server.accessToken,
             path,
             fields: { host: 'localhost:' + server.port },
-            statusCodeExpected: HttpStatusCode.CONFLICT_409
+            expectedStatus: HttpStatusCode.CONFLICT_409
           })
         })
 
@@ -202,7 +197,7 @@ describe('Test blocklist API validators', function () {
             token: server.accessToken,
             path,
             fields: { host: 'localhost:' + servers[1].port },
-            statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+            expectedStatus: HttpStatusCode.NO_CONTENT_204
           })
         })
       })
@@ -212,7 +207,7 @@ describe('Test blocklist API validators', function () {
           await makeDeleteRequest({
             url: server.url,
             path: path + '/localhost:' + servers[1].port,
-            statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+            expectedStatus: HttpStatusCode.UNAUTHORIZED_401
           })
         })
 
@@ -221,7 +216,7 @@ describe('Test blocklist API validators', function () {
             url: server.url,
             path: path + '/localhost:9004',
             token: server.accessToken,
-            statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+            expectedStatus: HttpStatusCode.NOT_FOUND_404
           })
         })
 
@@ -230,7 +225,7 @@ describe('Test blocklist API validators', function () {
             url: server.url,
             path: path + '/localhost:' + servers[1].port,
             token: server.accessToken,
-            statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+            expectedStatus: HttpStatusCode.NO_CONTENT_204
           })
         })
       })
@@ -247,7 +242,7 @@ describe('Test blocklist API validators', function () {
           await makeGetRequest({
             url: server.url,
             path,
-            statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+            expectedStatus: HttpStatusCode.UNAUTHORIZED_401
           })
         })
 
@@ -256,7 +251,7 @@ describe('Test blocklist API validators', function () {
             url: server.url,
             token: userAccessToken,
             path,
-            statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+            expectedStatus: HttpStatusCode.FORBIDDEN_403
           })
         })
 
@@ -279,7 +274,7 @@ describe('Test blocklist API validators', function () {
             url: server.url,
             path,
             fields: { accountName: 'user1' },
-            statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+            expectedStatus: HttpStatusCode.UNAUTHORIZED_401
           })
         })
 
@@ -289,7 +284,7 @@ describe('Test blocklist API validators', function () {
             token: userAccessToken,
             path,
             fields: { accountName: 'user1' },
-            statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+            expectedStatus: HttpStatusCode.FORBIDDEN_403
           })
         })
 
@@ -299,7 +294,7 @@ describe('Test blocklist API validators', function () {
             token: server.accessToken,
             path,
             fields: { accountName: 'user2' },
-            statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+            expectedStatus: HttpStatusCode.NOT_FOUND_404
           })
         })
 
@@ -309,7 +304,7 @@ describe('Test blocklist API validators', function () {
             token: server.accessToken,
             path,
             fields: { accountName: 'root' },
-            statusCodeExpected: HttpStatusCode.CONFLICT_409
+            expectedStatus: HttpStatusCode.CONFLICT_409
           })
         })
 
@@ -319,7 +314,7 @@ describe('Test blocklist API validators', function () {
             token: server.accessToken,
             path,
             fields: { accountName: 'user1' },
-            statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+            expectedStatus: HttpStatusCode.NO_CONTENT_204
           })
         })
       })
@@ -329,7 +324,7 @@ describe('Test blocklist API validators', function () {
           await makeDeleteRequest({
             url: server.url,
             path: path + '/user1',
-            statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+            expectedStatus: HttpStatusCode.UNAUTHORIZED_401
           })
         })
 
@@ -338,7 +333,7 @@ describe('Test blocklist API validators', function () {
             url: server.url,
             path: path + '/user1',
             token: userAccessToken,
-            statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+            expectedStatus: HttpStatusCode.FORBIDDEN_403
           })
         })
 
@@ -347,7 +342,7 @@ describe('Test blocklist API validators', function () {
             url: server.url,
             path: path + '/user2',
             token: server.accessToken,
-            statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+            expectedStatus: HttpStatusCode.NOT_FOUND_404
           })
         })
 
@@ -356,7 +351,7 @@ describe('Test blocklist API validators', function () {
             url: server.url,
             path: path + '/user1',
             token: server.accessToken,
-            statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+            expectedStatus: HttpStatusCode.NO_CONTENT_204
           })
         })
       })
@@ -370,7 +365,7 @@ describe('Test blocklist API validators', function () {
           await makeGetRequest({
             url: server.url,
             path,
-            statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+            expectedStatus: HttpStatusCode.UNAUTHORIZED_401
           })
         })
 
@@ -379,7 +374,7 @@ describe('Test blocklist API validators', function () {
             url: server.url,
             token: userAccessToken,
             path,
-            statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+            expectedStatus: HttpStatusCode.FORBIDDEN_403
           })
         })
 
@@ -402,7 +397,7 @@ describe('Test blocklist API validators', function () {
             url: server.url,
             path,
             fields: { host: 'localhost:' + servers[1].port },
-            statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+            expectedStatus: HttpStatusCode.UNAUTHORIZED_401
           })
         })
 
@@ -412,7 +407,7 @@ describe('Test blocklist API validators', function () {
             token: userAccessToken,
             path,
             fields: { host: 'localhost:' + servers[1].port },
-            statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+            expectedStatus: HttpStatusCode.FORBIDDEN_403
           })
         })
 
@@ -422,7 +417,7 @@ describe('Test blocklist API validators', function () {
             token: server.accessToken,
             path,
             fields: { host: 'localhost:9003' },
-            statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+            expectedStatus: HttpStatusCode.NO_CONTENT_204
           })
         })
 
@@ -432,7 +427,7 @@ describe('Test blocklist API validators', function () {
             token: server.accessToken,
             path,
             fields: { host: 'localhost:' + server.port },
-            statusCodeExpected: HttpStatusCode.CONFLICT_409
+            expectedStatus: HttpStatusCode.CONFLICT_409
           })
         })
 
@@ -442,7 +437,7 @@ describe('Test blocklist API validators', function () {
             token: server.accessToken,
             path,
             fields: { host: 'localhost:' + servers[1].port },
-            statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+            expectedStatus: HttpStatusCode.NO_CONTENT_204
           })
         })
       })
@@ -452,7 +447,7 @@ describe('Test blocklist API validators', function () {
           await makeDeleteRequest({
             url: server.url,
             path: path + '/localhost:' + servers[1].port,
-            statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+            expectedStatus: HttpStatusCode.UNAUTHORIZED_401
           })
         })
 
@@ -461,7 +456,7 @@ describe('Test blocklist API validators', function () {
             url: server.url,
             path: path + '/localhost:' + servers[1].port,
             token: userAccessToken,
-            statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+            expectedStatus: HttpStatusCode.FORBIDDEN_403
           })
         })
 
@@ -470,7 +465,7 @@ describe('Test blocklist API validators', function () {
             url: server.url,
             path: path + '/localhost:9004',
             token: server.accessToken,
-            statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+            expectedStatus: HttpStatusCode.NOT_FOUND_404
           })
         })
 
@@ -479,7 +474,7 @@ describe('Test blocklist API validators', function () {
             url: server.url,
             path: path + '/localhost:' + servers[1].port,
             token: server.accessToken,
-            statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+            expectedStatus: HttpStatusCode.NO_CONTENT_204
           })
         })
       })
diff --git a/server/tests/api/check-params/bulk.ts b/server/tests/api/check-params/bulk.ts
index 07b920ba7..bc9d7784d 100644
--- a/server/tests/api/check-params/bulk.ts
+++ b/server/tests/api/check-params/bulk.ts
@@ -1,19 +1,11 @@
 /* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
 
 import 'mocha'
-import {
-  cleanupTests,
-  createUser,
-  flushAndRunServer,
-  ServerInfo,
-  setAccessTokensToServers,
-  userLogin
-} from '../../../../shared/extra-utils'
-import { makePostBodyRequest } from '../../../../shared/extra-utils/requests/requests'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
+import { cleanupTests, createSingleServer, makePostBodyRequest, PeerTubeServer, setAccessTokensToServers } from '@shared/extra-utils'
+import { HttpStatusCode } from '@shared/models'
 
 describe('Test bulk API validators', function () {
-  let server: ServerInfo
+  let server: PeerTubeServer
   let userAccessToken: string
 
   // ---------------------------------------------------------------
@@ -21,13 +13,13 @@ describe('Test bulk API validators', function () {
   before(async function () {
     this.timeout(120000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
     await setAccessTokensToServers([ server ])
 
     const user = { username: 'user1', password: 'password' }
-    await createUser({ url: server.url, accessToken: server.accessToken, username: user.username, password: user.password })
+    await server.users.create({ username: user.username, password: user.password })
 
-    userAccessToken = await userLogin(server, user)
+    userAccessToken = await server.login.getAccessToken(user)
   })
 
   describe('When removing comments of', function () {
@@ -38,7 +30,7 @@ describe('Test bulk API validators', function () {
         url: server.url,
         path,
         fields: { accountName: 'user1', scope: 'my-videos' },
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -48,7 +40,7 @@ describe('Test bulk API validators', function () {
         token: server.accessToken,
         path,
         fields: { accountName: 'user2', scope: 'my-videos' },
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+        expectedStatus: HttpStatusCode.NOT_FOUND_404
       })
     })
 
@@ -58,7 +50,7 @@ describe('Test bulk API validators', function () {
         token: server.accessToken,
         path,
         fields: { accountName: 'user1', scope: 'my-videoss' },
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
@@ -68,7 +60,7 @@ describe('Test bulk API validators', function () {
         token: userAccessToken,
         path,
         fields: { accountName: 'user1', scope: 'instance' },
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
 
@@ -78,7 +70,7 @@ describe('Test bulk API validators', function () {
         token: server.accessToken,
         path,
         fields: { accountName: 'user1', scope: 'instance' },
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
   })
diff --git a/server/tests/api/check-params/config.ts b/server/tests/api/check-params/config.ts
index 9549070ef..87cb2287e 100644
--- a/server/tests/api/check-params/config.ts
+++ b/server/tests/api/check-params/config.ts
@@ -1,26 +1,21 @@
 /* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
 
-import { omit } from 'lodash'
 import 'mocha'
-import { CustomConfig } from '../../../../shared/models/server/custom-config.model'
-
+import { omit } from 'lodash'
 import {
   cleanupTests,
-  createUser,
-  flushAndRunServer,
-  immutableAssign,
+  createSingleServer,
   makeDeleteRequest,
   makeGetRequest,
   makePutBodyRequest,
-  ServerInfo,
-  setAccessTokensToServers,
-  userLogin
-} from '../../../../shared/extra-utils'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
+  PeerTubeServer,
+  setAccessTokensToServers
+} from '@shared/extra-utils'
+import { CustomConfig, HttpStatusCode } from '@shared/models'
 
 describe('Test config API validators', function () {
   const path = '/api/v1/config/custom'
-  let server: ServerInfo
+  let server: PeerTubeServer
   let userAccessToken: string
   const updateParams: CustomConfig = {
     instance: {
@@ -201,7 +196,7 @@ describe('Test config API validators', function () {
   before(async function () {
     this.timeout(30000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
 
     await setAccessTokensToServers([ server ])
 
@@ -209,8 +204,8 @@ describe('Test config API validators', function () {
       username: 'user1',
       password: 'password'
     }
-    await createUser({ url: server.url, accessToken: server.accessToken, username: user.username, password: user.password })
-    userAccessToken = await userLogin(server, user)
+    await server.users.create({ username: user.username, password: user.password })
+    userAccessToken = await server.login.getAccessToken(user)
   })
 
   describe('When getting the configuration', function () {
@@ -218,7 +213,7 @@ describe('Test config API validators', function () {
       await makeGetRequest({
         url: server.url,
         path,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -227,7 +222,7 @@ describe('Test config API validators', function () {
         url: server.url,
         path,
         token: userAccessToken,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
   })
@@ -238,7 +233,7 @@ describe('Test config API validators', function () {
         url: server.url,
         path,
         fields: updateParams,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -248,7 +243,7 @@ describe('Test config API validators', function () {
         path,
         fields: updateParams,
         token: userAccessToken,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
 
@@ -260,47 +255,53 @@ describe('Test config API validators', function () {
         path,
         fields: newUpdateParams,
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
     it('Should fail with a bad default NSFW policy', async function () {
-      const newUpdateParams = immutableAssign(updateParams, {
+      const newUpdateParams = {
+        ...updateParams,
+
         instance: {
           defaultNSFWPolicy: 'hello'
         }
-      })
+      }
 
       await makePutBodyRequest({
         url: server.url,
         path,
         fields: newUpdateParams,
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
     it('Should fail if email disabled and signup requires email verification', async function () {
       // opposite scenario - success when enable enabled - covered via tests/api/users/user-verification.ts
-      const newUpdateParams = immutableAssign(updateParams, {
+      const newUpdateParams = {
+        ...updateParams,
+
         signup: {
           enabled: true,
           limit: 5,
           requiresEmailVerification: true
         }
-      })
+      }
 
       await makePutBodyRequest({
         url: server.url,
         path,
         fields: newUpdateParams,
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
     it('Should fail with a disabled webtorrent & hls transcoding', async function () {
-      const newUpdateParams = immutableAssign(updateParams, {
+      const newUpdateParams = {
+        ...updateParams,
+
         transcoding: {
           hls: {
             enabled: false
@@ -309,14 +310,14 @@ describe('Test config API validators', function () {
             enabled: false
           }
         }
-      })
+      }
 
       await makePutBodyRequest({
         url: server.url,
         path,
         fields: newUpdateParams,
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
@@ -326,7 +327,7 @@ describe('Test config API validators', function () {
         path,
         fields: updateParams,
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
   })
@@ -336,7 +337,7 @@ describe('Test config API validators', function () {
       await makeDeleteRequest({
         url: server.url,
         path,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -345,7 +346,7 @@ describe('Test config API validators', function () {
         url: server.url,
         path,
         token: userAccessToken,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
   })
diff --git a/server/tests/api/check-params/contact-form.ts b/server/tests/api/check-params/contact-form.ts
index c7f9c1b47..1df9993da 100644
--- a/server/tests/api/check-params/contact-form.ts
+++ b/server/tests/api/check-params/contact-form.ts
@@ -1,14 +1,12 @@
 /* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
 
 import 'mocha'
-
-import { cleanupTests, flushAndRunServer, immutableAssign, killallServers, reRunServer, ServerInfo } from '../../../../shared/extra-utils'
-import { sendContactForm } from '../../../../shared/extra-utils/server/contact-form'
-import { MockSmtpServer } from '../../../../shared/extra-utils/miscs/email'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
+import { cleanupTests, createSingleServer, killallServers, MockSmtpServer, PeerTubeServer } from '@shared/extra-utils'
+import { ContactFormCommand } from '@shared/extra-utils/server'
+import { HttpStatusCode } from '@shared/models'
 
 describe('Test contact form API validators', function () {
-  let server: ServerInfo
+  let server: PeerTubeServer
   const emails: object[] = []
   const defaultBody = {
     fromName: 'super name',
@@ -17,6 +15,7 @@ describe('Test contact form API validators', function () {
     body: 'Hello, how are you?'
   }
   let emailPort: number
+  let command: ContactFormCommand
 
   // ---------------------------------------------------------------
 
@@ -26,86 +25,51 @@ describe('Test contact form API validators', function () {
     emailPort = await MockSmtpServer.Instance.collectEmails(emails)
 
     // Email is disabled
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
+    command = server.contactForm
   })
 
   it('Should not accept a contact form if emails are disabled', async function () {
-    await sendContactForm(immutableAssign(defaultBody, { url: server.url, expectedStatus: HttpStatusCode.CONFLICT_409 }))
+    await command.send({ ...defaultBody, expectedStatus: HttpStatusCode.CONFLICT_409 })
   })
 
   it('Should not accept a contact form if it is disabled in the configuration', async function () {
     this.timeout(10000)
 
-    killallServers([ server ])
+    await killallServers([ server ])
 
     // Contact form is disabled
-    await reRunServer(server, { smtp: { hostname: 'localhost', port: emailPort }, contact_form: { enabled: false } })
-    await sendContactForm(immutableAssign(defaultBody, { url: server.url, expectedStatus: HttpStatusCode.CONFLICT_409 }))
+    await server.run({ smtp: { hostname: 'localhost', port: emailPort }, contact_form: { enabled: false } })
+    await command.send({ ...defaultBody, expectedStatus: HttpStatusCode.CONFLICT_409 })
   })
 
   it('Should not accept a contact form if from email is invalid', async function () {
     this.timeout(10000)
 
-    killallServers([ server ])
+    await killallServers([ server ])
 
     // Email & contact form enabled
-    await reRunServer(server, { smtp: { hostname: 'localhost', port: emailPort } })
-
-    await sendContactForm(immutableAssign(defaultBody, {
-      url: server.url,
-      expectedStatus: HttpStatusCode.BAD_REQUEST_400,
-      fromEmail: 'badEmail'
-    }))
-    await sendContactForm(immutableAssign(defaultBody, {
-      url: server.url,
-      expectedStatus: HttpStatusCode.BAD_REQUEST_400,
-      fromEmail: 'badEmail@'
-    }))
-    await sendContactForm(immutableAssign(defaultBody, {
-      url: server.url,
-      expectedStatus: HttpStatusCode.BAD_REQUEST_400,
-      fromEmail: undefined
-    }))
+    await server.run({ smtp: { hostname: 'localhost', port: emailPort } })
+
+    await command.send({ ...defaultBody, fromEmail: 'badEmail', expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
+    await command.send({ ...defaultBody, fromEmail: 'badEmail@', expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
+    await command.send({ ...defaultBody, fromEmail: undefined, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
   })
 
   it('Should not accept a contact form if from name is invalid', async function () {
-    await sendContactForm(immutableAssign(defaultBody, {
-      url: server.url,
-      expectedStatus: HttpStatusCode.BAD_REQUEST_400,
-      fromName: 'name'.repeat(100)
-    }))
-    await sendContactForm(immutableAssign(defaultBody, {
-      url: server.url,
-      expectedStatus: HttpStatusCode.BAD_REQUEST_400,
-      fromName: ''
-    }))
-    await sendContactForm(immutableAssign(defaultBody, {
-      url: server.url,
-      expectedStatus: HttpStatusCode.BAD_REQUEST_400,
-      fromName: undefined
-    }))
+    await command.send({ ...defaultBody, fromName: 'name'.repeat(100), expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
+    await command.send({ ...defaultBody, fromName: '', expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
+    await command.send({ ...defaultBody, fromName: undefined, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
   })
 
   it('Should not accept a contact form if body is invalid', async function () {
-    await sendContactForm(immutableAssign(defaultBody, {
-      url: server.url,
-      expectedStatus: HttpStatusCode.BAD_REQUEST_400,
-      body: 'body'.repeat(5000)
-    }))
-    await sendContactForm(immutableAssign(defaultBody, {
-      url: server.url,
-      expectedStatus: HttpStatusCode.BAD_REQUEST_400,
-      body: 'a'
-    }))
-    await sendContactForm(immutableAssign(defaultBody, {
-      url: server.url,
-      expectedStatus: HttpStatusCode.BAD_REQUEST_400,
-      body: undefined
-    }))
+    await command.send({ ...defaultBody, body: 'body'.repeat(5000), expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
+    await command.send({ ...defaultBody, body: 'a', expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
+    await command.send({ ...defaultBody, body: undefined, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
   })
 
   it('Should accept a contact form with the correct parameters', async function () {
-    await sendContactForm(immutableAssign(defaultBody, { url: server.url }))
+    await command.send(defaultBody)
   })
 
   after(async function () {
diff --git a/server/tests/api/check-params/custom-pages.ts b/server/tests/api/check-params/custom-pages.ts
index 74ca3384c..9fbbea315 100644
--- a/server/tests/api/check-params/custom-pages.ts
+++ b/server/tests/api/check-params/custom-pages.ts
@@ -1,21 +1,20 @@
 /* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
 
 import 'mocha'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
 import {
   cleanupTests,
-  createUser,
-  flushAndRunServer,
-  ServerInfo,
-  setAccessTokensToServers,
-  userLogin
-} from '../../../../shared/extra-utils'
-import { makeGetRequest, makePutBodyRequest } from '../../../../shared/extra-utils/requests/requests'
+  createSingleServer,
+  makeGetRequest,
+  makePutBodyRequest,
+  PeerTubeServer,
+  setAccessTokensToServers
+} from '@shared/extra-utils'
+import { HttpStatusCode } from '@shared/models'
 
 describe('Test custom pages validators', function () {
   const path = '/api/v1/custom-pages/homepage/instance'
 
-  let server: ServerInfo
+  let server: PeerTubeServer
   let userAccessToken: string
 
   // ---------------------------------------------------------------
@@ -23,13 +22,13 @@ describe('Test custom pages validators', function () {
   before(async function () {
     this.timeout(120000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
     await setAccessTokensToServers([ server ])
 
     const user = { username: 'user1', password: 'password' }
-    await createUser({ url: server.url, accessToken: server.accessToken, username: user.username, password: user.password })
+    await server.users.create({ username: user.username, password: user.password })
 
-    userAccessToken = await userLogin(server, user)
+    userAccessToken = await server.login.getAccessToken(user)
   })
 
   describe('When updating instance homepage', function () {
@@ -39,7 +38,7 @@ describe('Test custom pages validators', function () {
         url: server.url,
         path,
         fields: { content: 'super content' },
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -49,7 +48,7 @@ describe('Test custom pages validators', function () {
         path,
         token: userAccessToken,
         fields: { content: 'super content' },
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
 
@@ -59,7 +58,7 @@ describe('Test custom pages validators', function () {
         path,
         token: server.accessToken,
         fields: { content: 'super content' },
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
   })
@@ -70,7 +69,7 @@ describe('Test custom pages validators', function () {
       await makeGetRequest({
         url: server.url,
         path,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
   })
diff --git a/server/tests/api/check-params/debug.ts b/server/tests/api/check-params/debug.ts
index 37bf0f99b..a55786359 100644
--- a/server/tests/api/check-params/debug.ts
+++ b/server/tests/api/check-params/debug.ts
@@ -1,21 +1,12 @@
 /* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
 
 import 'mocha'
-
-import {
-  cleanupTests,
-  createUser,
-  flushAndRunServer,
-  ServerInfo,
-  setAccessTokensToServers,
-  userLogin
-} from '../../../../shared/extra-utils'
-import { makeGetRequest } from '../../../../shared/extra-utils/requests/requests'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
+import { cleanupTests, createSingleServer, makeGetRequest, PeerTubeServer, setAccessTokensToServers } from '@shared/extra-utils'
+import { HttpStatusCode } from '@shared/models'
 
 describe('Test debug API validators', function () {
   const path = '/api/v1/server/debug'
-  let server: ServerInfo
+  let server: PeerTubeServer
   let userAccessToken = ''
 
   // ---------------------------------------------------------------
@@ -23,7 +14,7 @@ describe('Test debug API validators', function () {
   before(async function () {
     this.timeout(120000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
 
     await setAccessTokensToServers([ server ])
 
@@ -31,8 +22,8 @@ describe('Test debug API validators', function () {
       username: 'user1',
       password: 'my super password'
     }
-    await createUser({ url: server.url, accessToken: server.accessToken, username: user.username, password: user.password })
-    userAccessToken = await userLogin(server, user)
+    await server.users.create({ username: user.username, password: user.password })
+    userAccessToken = await server.login.getAccessToken(user)
   })
 
   describe('When getting debug endpoint', function () {
@@ -41,7 +32,7 @@ describe('Test debug API validators', function () {
       await makeGetRequest({
         url: server.url,
         path,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -50,7 +41,7 @@ describe('Test debug API validators', function () {
         url: server.url,
         path,
         token: userAccessToken,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
 
@@ -60,7 +51,7 @@ describe('Test debug API validators', function () {
         path,
         token: server.accessToken,
         query: { startDate: new Date().toISOString() },
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
   })
diff --git a/server/tests/api/check-params/follows.ts b/server/tests/api/check-params/follows.ts
index c03dd5c9c..2bc9f6b96 100644
--- a/server/tests/api/check-params/follows.ts
+++ b/server/tests/api/check-params/follows.ts
@@ -1,33 +1,29 @@
 /* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
 
 import 'mocha'
-
-import {
-  cleanupTests,
-  createUser,
-  flushAndRunServer,
-  makeDeleteRequest, makeGetRequest,
-  makePostBodyRequest,
-  ServerInfo,
-  setAccessTokensToServers,
-  userLogin
-} from '../../../../shared/extra-utils'
 import {
   checkBadCountPagination,
   checkBadSortPagination,
-  checkBadStartPagination
-} from '../../../../shared/extra-utils/requests/check-api-params'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
+  checkBadStartPagination,
+  cleanupTests,
+  createSingleServer,
+  makeDeleteRequest,
+  makeGetRequest,
+  makePostBodyRequest,
+  PeerTubeServer,
+  setAccessTokensToServers
+} from '@shared/extra-utils'
+import { HttpStatusCode } from '@shared/models'
 
 describe('Test server follows API validators', function () {
-  let server: ServerInfo
+  let server: PeerTubeServer
 
   // ---------------------------------------------------------------
 
   before(async function () {
     this.timeout(30000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
 
     await setAccessTokensToServers([ server ])
   })
@@ -36,64 +32,68 @@ describe('Test server follows API validators', function () {
     let userAccessToken = null
 
     before(async function () {
-      const user = {
-        username: 'user1',
-        password: 'password'
-      }
-
-      await createUser({ url: server.url, accessToken: server.accessToken, username: user.username, password: user.password })
-      userAccessToken = await userLogin(server, user)
+      userAccessToken = await server.users.generateUserAndToken('user1')
     })
 
     describe('When adding follows', function () {
       const path = '/api/v1/server/following'
 
-      it('Should fail without hosts', async function () {
+      it('Should fail with nothing', async function () {
         await makePostBodyRequest({
           url: server.url,
           path,
           token: server.accessToken,
-          statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+          expectedStatus: HttpStatusCode.BAD_REQUEST_400
         })
       })
 
-      it('Should fail if hosts is not an array', async function () {
+      it('Should fail if hosts is not composed by hosts', async function () {
         await makePostBodyRequest({
           url: server.url,
           path,
+          fields: { hosts: [ 'localhost:9002', 'localhost:coucou' ] },
           token: server.accessToken,
-          fields: { hosts: 'localhost:9002' },
-          statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+          expectedStatus: HttpStatusCode.BAD_REQUEST_400
         })
       })
 
-      it('Should fail if the array is not composed by hosts', async function () {
+      it('Should fail if hosts is composed with http schemes', async function () {
         await makePostBodyRequest({
           url: server.url,
           path,
-          fields: { hosts: [ 'localhost:9002', 'localhost:coucou' ] },
+          fields: { hosts: [ 'localhost:9002', 'http://localhost:9003' ] },
+          token: server.accessToken,
+          expectedStatus: HttpStatusCode.BAD_REQUEST_400
+        })
+      })
+
+      it('Should fail if hosts are not unique', async function () {
+        await makePostBodyRequest({
+          url: server.url,
+          path,
+          fields: { urls: [ 'localhost:9002', 'localhost:9002' ] },
           token: server.accessToken,
-          statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+          expectedStatus: HttpStatusCode.BAD_REQUEST_400
         })
       })
 
-      it('Should fail if the array is composed with http schemes', async function () {
+      it('Should fail if handles is not composed by handles', async function () {
         await makePostBodyRequest({
           url: server.url,
           path,
-          fields: { hosts: [ 'localhost:9002', 'http://localhost:9003' ] },
+          fields: { handles: [ 'hello@example.com', 'localhost:9001' ] },
           token: server.accessToken,
-          statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+          expectedStatus: HttpStatusCode.BAD_REQUEST_400
         })
       })
 
-      it('Should fail if hosts are not unique', async function () {
+      it('Should fail if handles are not unique', async function () {
         await makePostBodyRequest({
           url: server.url,
           path,
-          fields: { urls: [ 'localhost:9002', 'localhost:9002' ] },
+          fields: { urls: [ 'hello@example.com', 'hello@example.com' ] },
           token: server.accessToken,
-          statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+          expectedStatus: HttpStatusCode.BAD_REQUEST_400
         })
       })
 
@@ -103,7 +103,7 @@ describe('Test server follows API validators', function () {
           path,
           fields: { hosts: [ 'localhost:9002' ] },
           token: 'fake_token',
-          statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+          expectedStatus: HttpStatusCode.UNAUTHORIZED_401
         })
       })
 
@@ -113,7 +113,7 @@ describe('Test server follows API validators', function () {
           path,
           fields: { hosts: [ 'localhost:9002' ] },
           token: userAccessToken,
-          statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+          expectedStatus: HttpStatusCode.FORBIDDEN_403
         })
       })
     })
@@ -157,7 +157,7 @@ describe('Test server follows API validators', function () {
         await makeGetRequest({
           url: server.url,
           path,
-          statusCodeExpected: HttpStatusCode.OK_200,
+          expectedStatus: HttpStatusCode.OK_200,
           query: {
             state: 'accepted',
             actorType: 'Application'
@@ -206,7 +206,7 @@ describe('Test server follows API validators', function () {
         await makeGetRequest({
           url: server.url,
           path,
-          statusCodeExpected: HttpStatusCode.OK_200,
+          expectedStatus: HttpStatusCode.OK_200,
           query: {
             state: 'accepted'
           }
@@ -222,7 +222,7 @@ describe('Test server follows API validators', function () {
           url: server.url,
           path: path + '/toto@localhost:9002',
           token: 'fake_token',
-          statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+          expectedStatus: HttpStatusCode.UNAUTHORIZED_401
         })
       })
 
@@ -231,7 +231,7 @@ describe('Test server follows API validators', function () {
           url: server.url,
           path: path + '/toto@localhost:9002',
           token: userAccessToken,
-          statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+          expectedStatus: HttpStatusCode.FORBIDDEN_403
         })
       })
 
@@ -240,7 +240,7 @@ describe('Test server follows API validators', function () {
           url: server.url,
           path: path + '/toto',
           token: server.accessToken,
-          statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+          expectedStatus: HttpStatusCode.BAD_REQUEST_400
         })
       })
 
@@ -249,7 +249,7 @@ describe('Test server follows API validators', function () {
           url: server.url,
           path: path + '/toto@localhost:9003',
           token: server.accessToken,
-          statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+          expectedStatus: HttpStatusCode.NOT_FOUND_404
         })
       })
     })
@@ -262,7 +262,7 @@ describe('Test server follows API validators', function () {
           url: server.url,
           path: path + '/toto@localhost:9002/accept',
           token: 'fake_token',
-          statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+          expectedStatus: HttpStatusCode.UNAUTHORIZED_401
         })
       })
 
@@ -271,7 +271,7 @@ describe('Test server follows API validators', function () {
           url: server.url,
           path: path + '/toto@localhost:9002/accept',
           token: userAccessToken,
-          statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+          expectedStatus: HttpStatusCode.FORBIDDEN_403
         })
       })
 
@@ -280,7 +280,7 @@ describe('Test server follows API validators', function () {
           url: server.url,
           path: path + '/toto/accept',
           token: server.accessToken,
-          statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+          expectedStatus: HttpStatusCode.BAD_REQUEST_400
         })
       })
 
@@ -289,7 +289,7 @@ describe('Test server follows API validators', function () {
           url: server.url,
           path: path + '/toto@localhost:9003/accept',
           token: server.accessToken,
-          statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+          expectedStatus: HttpStatusCode.NOT_FOUND_404
         })
       })
     })
@@ -302,7 +302,7 @@ describe('Test server follows API validators', function () {
           url: server.url,
           path: path + '/toto@localhost:9002/reject',
           token: 'fake_token',
-          statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+          expectedStatus: HttpStatusCode.UNAUTHORIZED_401
         })
       })
 
@@ -311,7 +311,7 @@ describe('Test server follows API validators', function () {
           url: server.url,
           path: path + '/toto@localhost:9002/reject',
           token: userAccessToken,
-          statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+          expectedStatus: HttpStatusCode.FORBIDDEN_403
         })
       })
 
@@ -320,7 +320,7 @@ describe('Test server follows API validators', function () {
           url: server.url,
           path: path + '/toto/reject',
           token: server.accessToken,
-          statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+          expectedStatus: HttpStatusCode.BAD_REQUEST_400
         })
       })
 
@@ -329,7 +329,7 @@ describe('Test server follows API validators', function () {
           url: server.url,
           path: path + '/toto@localhost:9003/reject',
           token: server.accessToken,
-          statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+          expectedStatus: HttpStatusCode.NOT_FOUND_404
         })
       })
     })
@@ -342,7 +342,7 @@ describe('Test server follows API validators', function () {
           url: server.url,
           path: path + '/localhost:9002',
           token: 'fake_token',
-          statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+          expectedStatus: HttpStatusCode.UNAUTHORIZED_401
         })
       })
 
@@ -351,7 +351,7 @@ describe('Test server follows API validators', function () {
           url: server.url,
           path: path + '/localhost:9002',
           token: userAccessToken,
-          statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+          expectedStatus: HttpStatusCode.FORBIDDEN_403
         })
       })
 
@@ -360,7 +360,7 @@ describe('Test server follows API validators', function () {
           url: server.url,
           path: path + '/example.com',
           token: server.accessToken,
-          statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+          expectedStatus: HttpStatusCode.NOT_FOUND_404
         })
       })
     })
diff --git a/server/tests/api/check-params/jobs.ts b/server/tests/api/check-params/jobs.ts
index 3c1d2049b..23d95d8e4 100644
--- a/server/tests/api/check-params/jobs.ts
+++ b/server/tests/api/check-params/jobs.ts
@@ -1,26 +1,21 @@
 /* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
 
 import 'mocha'
-
-import {
-  cleanupTests,
-  createUser,
-  flushAndRunServer,
-  ServerInfo,
-  setAccessTokensToServers,
-  userLogin
-} from '../../../../shared/extra-utils'
 import {
   checkBadCountPagination,
   checkBadSortPagination,
-  checkBadStartPagination
-} from '../../../../shared/extra-utils/requests/check-api-params'
-import { makeGetRequest } from '../../../../shared/extra-utils/requests/requests'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
+  checkBadStartPagination,
+  cleanupTests,
+  createSingleServer,
+  makeGetRequest,
+  PeerTubeServer,
+  setAccessTokensToServers
+} from '@shared/extra-utils'
+import { HttpStatusCode } from '@shared/models'
 
 describe('Test jobs API validators', function () {
   const path = '/api/v1/jobs/failed'
-  let server: ServerInfo
+  let server: PeerTubeServer
   let userAccessToken = ''
 
   // ---------------------------------------------------------------
@@ -28,7 +23,7 @@ describe('Test jobs API validators', function () {
   before(async function () {
     this.timeout(120000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
 
     await setAccessTokensToServers([ server ])
 
@@ -36,8 +31,8 @@ describe('Test jobs API validators', function () {
       username: 'user1',
       password: 'my super password'
     }
-    await createUser({ url: server.url, accessToken: server.accessToken, username: user.username, password: user.password })
-    userAccessToken = await userLogin(server, user)
+    await server.users.create({ username: user.username, password: user.password })
+    userAccessToken = await server.login.getAccessToken(user)
   })
 
   describe('When listing jobs', function () {
@@ -77,7 +72,7 @@ describe('Test jobs API validators', function () {
       await makeGetRequest({
         url: server.url,
         path,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -86,7 +81,7 @@ describe('Test jobs API validators', function () {
         url: server.url,
         path,
         token: userAccessToken,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
 
diff --git a/server/tests/api/check-params/live.ts b/server/tests/api/check-params/live.ts
index 933d8abf2..700b4724d 100644
--- a/server/tests/api/check-params/live.ts
+++ b/server/tests/api/check-params/live.ts
@@ -2,69 +2,64 @@
 
 import 'mocha'
 import { omit } from 'lodash'
-import { LiveVideo, VideoCreateResult, VideoPrivacy } from '@shared/models'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
 import {
   buildAbsoluteFixturePath,
   cleanupTests,
-  createUser,
-  flushAndRunServer,
-  getLive,
-  getMyUserInformation,
-  immutableAssign,
+  createSingleServer,
+  LiveCommand,
   makePostBodyRequest,
   makeUploadRequest,
-  runAndTestFfmpegStreamError,
+  PeerTubeServer,
   sendRTMPStream,
-  ServerInfo,
   setAccessTokensToServers,
-  stopFfmpeg,
-  updateCustomSubConfig,
-  updateLive,
-  uploadVideoAndGetId,
-  userLogin,
-  waitUntilLivePublished
-} from '../../../../shared/extra-utils'
+  stopFfmpeg
+} from '@shared/extra-utils'
+import { HttpStatusCode, VideoCreateResult, VideoPrivacy } from '@shared/models'
 
 describe('Test video lives API validator', function () {
   const path = '/api/v1/videos/live'
-  let server: ServerInfo
+  let server: PeerTubeServer
   let userAccessToken = ''
   let channelId: number
   let video: VideoCreateResult
   let videoIdNotLive: number
+  let command: LiveCommand
 
   // ---------------------------------------------------------------
 
   before(async function () {
     this.timeout(30000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
 
     await setAccessTokensToServers([ server ])
 
-    await updateCustomSubConfig(server.url, server.accessToken, {
-      live: {
-        enabled: true,
-        maxInstanceLives: 20,
-        maxUserLives: 20,
-        allowReplay: true
+    await server.config.updateCustomSubConfig({
+      newConfig: {
+        live: {
+          enabled: true,
+          maxInstanceLives: 20,
+          maxUserLives: 20,
+          allowReplay: true
+        }
       }
     })
 
     const username = 'user1'
     const password = 'my super password'
-    await createUser({ url: server.url, accessToken: server.accessToken, username: username, password: password })
-    userAccessToken = await userLogin(server, { username, password })
+    await server.users.create({ username: username, password: password })
+    userAccessToken = await server.login.getAccessToken({ username, password })
 
     {
-      const res = await getMyUserInformation(server.url, server.accessToken)
-      channelId = res.body.videoChannels[0].id
+      const { videoChannels } = await server.users.getMyInfo()
+      channelId = videoChannels[0].id
     }
 
     {
-      videoIdNotLive = (await uploadVideoAndGetId({ server, videoName: 'not live' })).id
+      videoIdNotLive = (await server.videos.quickUpload({ name: 'not live' })).id
     }
+
+    command = server.live
   })
 
   describe('When creating a live', function () {
@@ -96,37 +91,37 @@ describe('Test video lives API validator', function () {
     })
 
     it('Should fail with a long name', async function () {
-      const fields = immutableAssign(baseCorrectParams, { name: 'super'.repeat(65) })
+      const fields = { ...baseCorrectParams, name: 'super'.repeat(65) }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with a bad category', async function () {
-      const fields = immutableAssign(baseCorrectParams, { category: 125 })
+      const fields = { ...baseCorrectParams, category: 125 }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with a bad licence', async function () {
-      const fields = immutableAssign(baseCorrectParams, { licence: 125 })
+      const fields = { ...baseCorrectParams, licence: 125 }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with a bad language', async function () {
-      const fields = immutableAssign(baseCorrectParams, { language: 'a'.repeat(15) })
+      const fields = { ...baseCorrectParams, language: 'a'.repeat(15) }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with a long description', async function () {
-      const fields = immutableAssign(baseCorrectParams, { description: 'super'.repeat(2500) })
+      const fields = { ...baseCorrectParams, description: 'super'.repeat(2500) }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with a long support text', async function () {
-      const fields = immutableAssign(baseCorrectParams, { support: 'super'.repeat(201) })
+      const fields = { ...baseCorrectParams, support: 'super'.repeat(201) }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
@@ -138,7 +133,7 @@ describe('Test video lives API validator', function () {
     })
 
     it('Should fail with a bad channel', async function () {
-      const fields = immutableAssign(baseCorrectParams, { channelId: 545454 })
+      const fields = { ...baseCorrectParams, channelId: 545454 }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
@@ -148,31 +143,31 @@ describe('Test video lives API validator', function () {
         username: 'fake',
         password: 'fake_password'
       }
-      await createUser({ url: server.url, accessToken: server.accessToken, username: user.username, password: user.password })
+      await server.users.create({ username: user.username, password: user.password })
 
-      const accessTokenUser = await userLogin(server, user)
-      const res = await getMyUserInformation(server.url, accessTokenUser)
-      const customChannelId = res.body.videoChannels[0].id
+      const accessTokenUser = await server.login.getAccessToken(user)
+      const { videoChannels } = await server.users.getMyInfo({ token: accessTokenUser })
+      const customChannelId = videoChannels[0].id
 
-      const fields = immutableAssign(baseCorrectParams, { channelId: customChannelId })
+      const fields = { ...baseCorrectParams, channelId: customChannelId }
 
       await makePostBodyRequest({ url: server.url, path, token: userAccessToken, fields })
     })
 
     it('Should fail with too many tags', async function () {
-      const fields = immutableAssign(baseCorrectParams, { tags: [ 'tag1', 'tag2', 'tag3', 'tag4', 'tag5', 'tag6' ] })
+      const fields = { ...baseCorrectParams, tags: [ 'tag1', 'tag2', 'tag3', 'tag4', 'tag5', 'tag6' ] }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with a tag length too low', async function () {
-      const fields = immutableAssign(baseCorrectParams, { tags: [ 'tag1', 't' ] })
+      const fields = { ...baseCorrectParams, tags: [ 'tag1', 't' ] }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with a tag length too big', async function () {
-      const fields = immutableAssign(baseCorrectParams, { tags: [ 'tag1', 'my_super_tag_too_long_long_long_long_long_long' ] })
+      const fields = { ...baseCorrectParams, tags: [ 'tag1', 'my_super_tag_too_long_long_long_long_long_long' ] }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
@@ -214,7 +209,7 @@ describe('Test video lives API validator', function () {
     })
 
     it('Should fail with save replay and permanent live set to true', async function () {
-      const fields = immutableAssign(baseCorrectParams, { saveReplay: true, permanentLive: true })
+      const fields = { ...baseCorrectParams, saveReplay: true, permanentLive: true }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
@@ -227,16 +222,18 @@ describe('Test video lives API validator', function () {
         path,
         token: server.accessToken,
         fields: baseCorrectParams,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
 
       video = res.body.video
     })
 
     it('Should forbid if live is disabled', async function () {
-      await updateCustomSubConfig(server.url, server.accessToken, {
-        live: {
-          enabled: false
+      await server.config.updateCustomSubConfig({
+        newConfig: {
+          live: {
+            enabled: false
+          }
         }
       })
 
@@ -245,17 +242,19 @@ describe('Test video lives API validator', function () {
         path,
         token: server.accessToken,
         fields: baseCorrectParams,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
 
     it('Should forbid to save replay if not enabled by the admin', async function () {
-      const fields = immutableAssign(baseCorrectParams, { saveReplay: true })
-
-      await updateCustomSubConfig(server.url, server.accessToken, {
-        live: {
-          enabled: true,
-          allowReplay: false
+      const fields = { ...baseCorrectParams, saveReplay: true }
+
+      await server.config.updateCustomSubConfig({
+        newConfig: {
+          live: {
+            enabled: true,
+            allowReplay: false
+          }
         }
       })
 
@@ -264,17 +263,19 @@ describe('Test video lives API validator', function () {
         path,
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
 
     it('Should allow to save replay if enabled by the admin', async function () {
-      const fields = immutableAssign(baseCorrectParams, { saveReplay: true })
-
-      await updateCustomSubConfig(server.url, server.accessToken, {
-        live: {
-          enabled: true,
-          allowReplay: true
+      const fields = { ...baseCorrectParams, saveReplay: true }
+
+      await server.config.updateCustomSubConfig({
+        newConfig: {
+          live: {
+            enabled: true,
+            allowReplay: true
+          }
         }
       })
 
@@ -283,15 +284,17 @@ describe('Test video lives API validator', function () {
         path,
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
 
     it('Should not allow live if max instance lives is reached', async function () {
-      await updateCustomSubConfig(server.url, server.accessToken, {
-        live: {
-          enabled: true,
-          maxInstanceLives: 1
+      await server.config.updateCustomSubConfig({
+        newConfig: {
+          live: {
+            enabled: true,
+            maxInstanceLives: 1
+          }
         }
       })
 
@@ -300,16 +303,18 @@ describe('Test video lives API validator', function () {
         path,
         token: server.accessToken,
         fields: baseCorrectParams,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
 
     it('Should not allow live if max user lives is reached', async function () {
-      await updateCustomSubConfig(server.url, server.accessToken, {
-        live: {
-          enabled: true,
-          maxInstanceLives: 20,
-          maxUserLives: 1
+      await server.config.updateCustomSubConfig({
+        newConfig: {
+          live: {
+            enabled: true,
+            maxInstanceLives: 20,
+            maxUserLives: 1
+          }
         }
       })
 
@@ -318,7 +323,7 @@ describe('Test video lives API validator', function () {
         path,
         token: server.accessToken,
         fields: baseCorrectParams,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
   })
@@ -326,110 +331,112 @@ describe('Test video lives API validator', function () {
   describe('When getting live information', function () {
 
     it('Should fail without access token', async function () {
-      await getLive(server.url, '', video.id, HttpStatusCode.UNAUTHORIZED_401)
+      await command.get({ token: '', videoId: video.id, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail with a bad access token', async function () {
-      await getLive(server.url, 'toto', video.id, HttpStatusCode.UNAUTHORIZED_401)
+      await command.get({ token: 'toto', videoId: video.id, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail with access token of another user', async function () {
-      await getLive(server.url, userAccessToken, video.id, HttpStatusCode.FORBIDDEN_403)
+      await command.get({ token: userAccessToken, videoId: video.id, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
     })
 
     it('Should fail with a bad video id', async function () {
-      await getLive(server.url, server.accessToken, 'toto', HttpStatusCode.BAD_REQUEST_400)
+      await command.get({ videoId: 'toto', expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
     })
 
     it('Should fail with an unknown video id', async function () {
-      await getLive(server.url, server.accessToken, 454555, HttpStatusCode.NOT_FOUND_404)
+      await command.get({ videoId: 454555, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
 
     it('Should fail with a non live video', async function () {
-      await getLive(server.url, server.accessToken, videoIdNotLive, HttpStatusCode.NOT_FOUND_404)
+      await command.get({ videoId: videoIdNotLive, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
 
     it('Should succeed with the correct params', async function () {
-      await getLive(server.url, server.accessToken, video.id)
-      await getLive(server.url, server.accessToken, video.shortUUID)
+      await command.get({ videoId: video.id })
+      await command.get({ videoId: video.uuid })
+      await command.get({ videoId: video.shortUUID })
     })
   })
 
   describe('When updating live information', async function () {
 
     it('Should fail without access token', async function () {
-      await updateLive(server.url, '', video.id, {}, HttpStatusCode.UNAUTHORIZED_401)
+      await command.update({ token: '', videoId: video.id, fields: {}, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail with a bad access token', async function () {
-      await updateLive(server.url, 'toto', video.id, {}, HttpStatusCode.UNAUTHORIZED_401)
+      await command.update({ token: 'toto', videoId: video.id, fields: {}, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail with access token of another user', async function () {
-      await updateLive(server.url, userAccessToken, video.id, {}, HttpStatusCode.FORBIDDEN_403)
+      await command.update({ token: userAccessToken, videoId: video.id, fields: {}, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
     })
 
     it('Should fail with a bad video id', async function () {
-      await updateLive(server.url, server.accessToken, 'toto', {}, HttpStatusCode.BAD_REQUEST_400)
+      await command.update({ videoId: 'toto', fields: {}, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
     })
 
     it('Should fail with an unknown video id', async function () {
-      await updateLive(server.url, server.accessToken, 454555, {}, HttpStatusCode.NOT_FOUND_404)
+      await command.update({ videoId: 454555, fields: {}, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
 
     it('Should fail with a non live video', async function () {
-      await updateLive(server.url, server.accessToken, videoIdNotLive, {}, HttpStatusCode.NOT_FOUND_404)
+      await command.update({ videoId: videoIdNotLive, fields: {}, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
 
     it('Should fail with save replay and permanent live set to true', async function () {
       const fields = { saveReplay: true, permanentLive: true }
 
-      await updateLive(server.url, server.accessToken, video.id, fields, HttpStatusCode.BAD_REQUEST_400)
+      await command.update({ videoId: video.id, fields, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
     })
 
     it('Should succeed with the correct params', async function () {
-      await updateLive(server.url, server.accessToken, video.id, { saveReplay: false })
-      await updateLive(server.url, server.accessToken, video.shortUUID, { saveReplay: false })
+      await command.update({ videoId: video.id, fields: { saveReplay: false } })
+      await command.update({ videoId: video.uuid, fields: { saveReplay: false } })
+      await command.update({ videoId: video.shortUUID, fields: { saveReplay: false } })
     })
 
     it('Should fail to update replay status if replay is not allowed on the instance', async function () {
-      await updateCustomSubConfig(server.url, server.accessToken, {
-        live: {
-          enabled: true,
-          allowReplay: false
+      await server.config.updateCustomSubConfig({
+        newConfig: {
+          live: {
+            enabled: true,
+            allowReplay: false
+          }
         }
       })
 
-      await updateLive(server.url, server.accessToken, video.id, { saveReplay: true }, HttpStatusCode.FORBIDDEN_403)
+      await command.update({ videoId: video.id, fields: { saveReplay: true }, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
     })
 
     it('Should fail to update a live if it has already started', async function () {
       this.timeout(40000)
 
-      const resLive = await getLive(server.url, server.accessToken, video.id)
-      const live: LiveVideo = resLive.body
+      const live = await command.get({ videoId: video.id })
 
-      const command = sendRTMPStream(live.rtmpUrl, live.streamKey)
+      const ffmpegCommand = sendRTMPStream(live.rtmpUrl, live.streamKey)
 
-      await waitUntilLivePublished(server.url, server.accessToken, video.id)
-      await updateLive(server.url, server.accessToken, video.id, {}, HttpStatusCode.BAD_REQUEST_400)
+      await command.waitUntilPublished({ videoId: video.id })
+      await command.update({ videoId: video.id, fields: {}, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
 
-      await stopFfmpeg(command)
+      await stopFfmpeg(ffmpegCommand)
     })
 
     it('Should fail to stream twice in the save live', async function () {
       this.timeout(40000)
 
-      const resLive = await getLive(server.url, server.accessToken, video.id)
-      const live: LiveVideo = resLive.body
+      const live = await command.get({ videoId: video.id })
 
-      const command = sendRTMPStream(live.rtmpUrl, live.streamKey)
+      const ffmpegCommand = sendRTMPStream(live.rtmpUrl, live.streamKey)
 
-      await waitUntilLivePublished(server.url, server.accessToken, video.id)
+      await command.waitUntilPublished({ videoId: video.id })
 
-      await runAndTestFfmpegStreamError(server.url, server.accessToken, video.id, true)
+      await command.runAndTestStreamError({ videoId: video.id, shouldHaveError: true })
 
-      await stopFfmpeg(command)
+      await stopFfmpeg(ffmpegCommand)
     })
   })
 
diff --git a/server/tests/api/check-params/logs.ts b/server/tests/api/check-params/logs.ts
index dac1e6b98..05372257a 100644
--- a/server/tests/api/check-params/logs.ts
+++ b/server/tests/api/check-params/logs.ts
@@ -1,21 +1,12 @@
 /* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
 
 import 'mocha'
-
-import {
-  cleanupTests,
-  createUser,
-  flushAndRunServer,
-  ServerInfo,
-  setAccessTokensToServers,
-  userLogin
-} from '../../../../shared/extra-utils'
-import { makeGetRequest } from '../../../../shared/extra-utils/requests/requests'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
+import { cleanupTests, createSingleServer, makeGetRequest, PeerTubeServer, setAccessTokensToServers } from '@shared/extra-utils'
+import { HttpStatusCode } from '@shared/models'
 
 describe('Test logs API validators', function () {
   const path = '/api/v1/server/logs'
-  let server: ServerInfo
+  let server: PeerTubeServer
   let userAccessToken = ''
 
   // ---------------------------------------------------------------
@@ -23,7 +14,7 @@ describe('Test logs API validators', function () {
   before(async function () {
     this.timeout(120000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
 
     await setAccessTokensToServers([ server ])
 
@@ -31,8 +22,8 @@ describe('Test logs API validators', function () {
       username: 'user1',
       password: 'my super password'
     }
-    await createUser({ url: server.url, accessToken: server.accessToken, username: user.username, password: user.password })
-    userAccessToken = await userLogin(server, user)
+    await server.users.create({ username: user.username, password: user.password })
+    userAccessToken = await server.login.getAccessToken(user)
   })
 
   describe('When getting logs', function () {
@@ -41,7 +32,7 @@ describe('Test logs API validators', function () {
       await makeGetRequest({
         url: server.url,
         path,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -50,7 +41,7 @@ describe('Test logs API validators', function () {
         url: server.url,
         path,
         token: userAccessToken,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
 
@@ -59,7 +50,7 @@ describe('Test logs API validators', function () {
         url: server.url,
         path,
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
@@ -69,7 +60,7 @@ describe('Test logs API validators', function () {
         path,
         token: server.accessToken,
         query: { startDate: 'toto' },
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
@@ -79,7 +70,7 @@ describe('Test logs API validators', function () {
         path,
         token: server.accessToken,
         query: { startDate: new Date().toISOString(), endDate: 'toto' },
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
@@ -89,7 +80,7 @@ describe('Test logs API validators', function () {
         path,
         token: server.accessToken,
         query: { startDate: new Date().toISOString(), level: 'toto' },
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
@@ -99,7 +90,7 @@ describe('Test logs API validators', function () {
         path,
         token: server.accessToken,
         query: { startDate: new Date().toISOString() },
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
   })
diff --git a/server/tests/api/check-params/plugins.ts b/server/tests/api/check-params/plugins.ts
index a833fe6ff..33f84ecbc 100644
--- a/server/tests/api/check-params/plugins.ts
+++ b/server/tests/api/check-params/plugins.ts
@@ -1,27 +1,22 @@
 /* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
 
 import 'mocha'
-import { HttpStatusCode } from '@shared/core-utils'
 import {
   checkBadCountPagination,
   checkBadSortPagination,
   checkBadStartPagination,
   cleanupTests,
-  createUser,
-  flushAndRunServer,
-  immutableAssign,
-  installPlugin,
+  createSingleServer,
   makeGetRequest,
   makePostBodyRequest,
   makePutBodyRequest,
-  ServerInfo,
-  setAccessTokensToServers,
-  userLogin
+  PeerTubeServer,
+  setAccessTokensToServers
 } from '@shared/extra-utils'
-import { PeerTubePlugin, PluginType } from '@shared/models'
+import { HttpStatusCode, PeerTubePlugin, PluginType } from '@shared/models'
 
 describe('Test server plugins API validators', function () {
-  let server: ServerInfo
+  let server: PeerTubeServer
   let userAccessToken = null
 
   const npmPlugin = 'peertube-plugin-hello-world'
@@ -37,7 +32,7 @@ describe('Test server plugins API validators', function () {
   before(async function () {
     this.timeout(30000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
 
     await setAccessTokensToServers([ server ])
 
@@ -46,17 +41,17 @@ describe('Test server plugins API validators', function () {
       password: 'password'
     }
 
-    await createUser({ url: server.url, accessToken: server.accessToken, username: user.username, password: user.password })
-    userAccessToken = await userLogin(server, user)
+    await server.users.create({ username: user.username, password: user.password })
+    userAccessToken = await server.login.getAccessToken(user)
 
     {
-      const res = await installPlugin({ url: server.url, accessToken: server.accessToken, npmName: npmPlugin })
+      const res = await server.plugins.install({ npmName: npmPlugin })
       const plugin = res.body as PeerTubePlugin
       npmVersion = plugin.version
     }
 
     {
-      const res = await installPlugin({ url: server.url, accessToken: server.accessToken, npmName: themePlugin })
+      const res = await server.plugins.install({ npmName: themePlugin })
       const plugin = res.body as PeerTubePlugin
       themeVersion = plugin.version
     }
@@ -74,7 +69,7 @@ describe('Test server plugins API validators', function () {
       ]
 
       for (const p of paths) {
-        await makeGetRequest({ url: server.url, path: p, statusCodeExpected: HttpStatusCode.NOT_FOUND_404 })
+        await makeGetRequest({ url: server.url, path: p, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
       }
     })
 
@@ -82,7 +77,7 @@ describe('Test server plugins API validators', function () {
       await makeGetRequest({
         url: server.url,
         path: '/themes/' + pluginName + '/' + npmVersion + '/static/images/chocobo.png',
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+        expectedStatus: HttpStatusCode.NOT_FOUND_404
       })
     })
 
@@ -97,7 +92,7 @@ describe('Test server plugins API validators', function () {
       ]
 
       for (const p of paths) {
-        await makeGetRequest({ url: server.url, path: p, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
+        await makeGetRequest({ url: server.url, path: p, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
       }
     })
 
@@ -111,14 +106,14 @@ describe('Test server plugins API validators', function () {
       ]
 
       for (const p of paths) {
-        await makeGetRequest({ url: server.url, path: p, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
+        await makeGetRequest({ url: server.url, path: p, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
       }
     })
 
     it('Should fail with an unknown auth name', async function () {
       const path = '/plugins/' + pluginName + '/' + npmVersion + '/auth/bad-auth'
 
-      await makeGetRequest({ url: server.url, path, statusCodeExpected: HttpStatusCode.NOT_FOUND_404 })
+      await makeGetRequest({ url: server.url, path, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
 
     it('Should fail with an unknown static file', async function () {
@@ -130,7 +125,7 @@ describe('Test server plugins API validators', function () {
       ]
 
       for (const p of paths) {
-        await makeGetRequest({ url: server.url, path: p, statusCodeExpected: HttpStatusCode.NOT_FOUND_404 })
+        await makeGetRequest({ url: server.url, path: p, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
       }
     })
 
@@ -138,7 +133,7 @@ describe('Test server plugins API validators', function () {
       await makeGetRequest({
         url: server.url,
         path: '/themes/' + themeName + '/' + themeVersion + '/css/assets/fake.css',
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+        expectedStatus: HttpStatusCode.NOT_FOUND_404
       })
     })
 
@@ -152,11 +147,11 @@ describe('Test server plugins API validators', function () {
       ]
 
       for (const p of paths) {
-        await makeGetRequest({ url: server.url, path: p, statusCodeExpected: HttpStatusCode.OK_200 })
+        await makeGetRequest({ url: server.url, path: p, expectedStatus: HttpStatusCode.OK_200 })
       }
 
       const authPath = '/plugins/' + pluginName + '/' + npmVersion + '/auth/fake-auth'
-      await makeGetRequest({ url: server.url, path: authPath, statusCodeExpected: HttpStatusCode.FOUND_302 })
+      await makeGetRequest({ url: server.url, path: authPath, expectedStatus: HttpStatusCode.FOUND_302 })
     })
   })
 
@@ -174,7 +169,7 @@ describe('Test server plugins API validators', function () {
         path,
         token: 'fake_token',
         query: baseQuery,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -184,7 +179,7 @@ describe('Test server plugins API validators', function () {
         path,
         token: userAccessToken,
         query: baseQuery,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
 
@@ -201,7 +196,7 @@ describe('Test server plugins API validators', function () {
     })
 
     it('Should fail with an invalid plugin type', async function () {
-      const query = immutableAssign(baseQuery, { pluginType: 5 })
+      const query = { ...baseQuery, pluginType: 5 }
 
       await makeGetRequest({
         url: server.url,
@@ -212,7 +207,7 @@ describe('Test server plugins API validators', function () {
     })
 
     it('Should fail with an invalid current peertube engine', async function () {
-      const query = immutableAssign(baseQuery, { currentPeerTubeEngine: '1.0' })
+      const query = { ...baseQuery, currentPeerTubeEngine: '1.0' }
 
       await makeGetRequest({
         url: server.url,
@@ -228,7 +223,7 @@ describe('Test server plugins API validators', function () {
         path,
         token: server.accessToken,
         query: baseQuery,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
   })
@@ -245,7 +240,7 @@ describe('Test server plugins API validators', function () {
         path,
         token: 'fake_token',
         query: baseQuery,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -255,7 +250,7 @@ describe('Test server plugins API validators', function () {
         path,
         token: userAccessToken,
         query: baseQuery,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
 
@@ -272,7 +267,7 @@ describe('Test server plugins API validators', function () {
     })
 
     it('Should fail with an invalid plugin type', async function () {
-      const query = immutableAssign(baseQuery, { pluginType: 5 })
+      const query = { ...baseQuery, pluginType: 5 }
 
       await makeGetRequest({
         url: server.url,
@@ -288,7 +283,7 @@ describe('Test server plugins API validators', function () {
         path,
         token: server.accessToken,
         query: baseQuery,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
   })
@@ -302,7 +297,7 @@ describe('Test server plugins API validators', function () {
           url: server.url,
           path: path + suffix,
           token: 'fake_token',
-          statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+          expectedStatus: HttpStatusCode.UNAUTHORIZED_401
         })
       }
     })
@@ -313,7 +308,7 @@ describe('Test server plugins API validators', function () {
           url: server.url,
           path: path + suffix,
           token: userAccessToken,
-          statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+          expectedStatus: HttpStatusCode.FORBIDDEN_403
         })
       }
     })
@@ -324,7 +319,7 @@ describe('Test server plugins API validators', function () {
           url: server.url,
           path: path + suffix,
           token: server.accessToken,
-          statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+          expectedStatus: HttpStatusCode.BAD_REQUEST_400
         })
       }
 
@@ -333,7 +328,7 @@ describe('Test server plugins API validators', function () {
           url: server.url,
           path: path + suffix,
           token: server.accessToken,
-          statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+          expectedStatus: HttpStatusCode.BAD_REQUEST_400
         })
       }
     })
@@ -344,7 +339,7 @@ describe('Test server plugins API validators', function () {
           url: server.url,
           path: path + suffix,
           token: server.accessToken,
-          statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+          expectedStatus: HttpStatusCode.NOT_FOUND_404
         })
       }
     })
@@ -355,7 +350,7 @@ describe('Test server plugins API validators', function () {
           url: server.url,
           path: path + suffix,
           token: server.accessToken,
-          statusCodeExpected: HttpStatusCode.OK_200
+          expectedStatus: HttpStatusCode.OK_200
         })
       }
     })
@@ -371,7 +366,7 @@ describe('Test server plugins API validators', function () {
         path: path + npmPlugin + '/settings',
         fields: { settings },
         token: 'fake_token',
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -381,7 +376,7 @@ describe('Test server plugins API validators', function () {
         path: path + npmPlugin + '/settings',
         fields: { settings },
         token: userAccessToken,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
 
@@ -391,7 +386,7 @@ describe('Test server plugins API validators', function () {
         path: path + 'toto/settings',
         fields: { settings },
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
 
       await makePutBodyRequest({
@@ -399,7 +394,7 @@ describe('Test server plugins API validators', function () {
         path: path + 'peertube-plugin-TOTO/settings',
         fields: { settings },
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
@@ -409,7 +404,7 @@ describe('Test server plugins API validators', function () {
         path: path + 'peertube-plugin-toto/settings',
         fields: { settings },
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+        expectedStatus: HttpStatusCode.NOT_FOUND_404
       })
     })
 
@@ -419,7 +414,7 @@ describe('Test server plugins API validators', function () {
         path: path + npmPlugin + '/settings',
         fields: { settings },
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
   })
@@ -434,7 +429,7 @@ describe('Test server plugins API validators', function () {
           path: path + suffix,
           fields: { npmName: npmPlugin },
           token: 'fake_token',
-          statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+          expectedStatus: HttpStatusCode.UNAUTHORIZED_401
         })
       }
     })
@@ -446,7 +441,7 @@ describe('Test server plugins API validators', function () {
           path: path + suffix,
           fields: { npmName: npmPlugin },
           token: userAccessToken,
-          statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+          expectedStatus: HttpStatusCode.FORBIDDEN_403
         })
       }
     })
@@ -458,7 +453,7 @@ describe('Test server plugins API validators', function () {
           path: path + suffix,
           fields: { npmName: 'toto' },
           token: server.accessToken,
-          statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+          expectedStatus: HttpStatusCode.BAD_REQUEST_400
         })
       }
 
@@ -468,7 +463,7 @@ describe('Test server plugins API validators', function () {
           path: path + suffix,
           fields: { npmName: 'peertube-plugin-TOTO' },
           token: server.accessToken,
-          statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+          expectedStatus: HttpStatusCode.BAD_REQUEST_400
         })
       }
     })
@@ -488,7 +483,7 @@ describe('Test server plugins API validators', function () {
           path: path + obj.suffix,
           fields: { npmName: npmPlugin },
           token: server.accessToken,
-          statusCodeExpected: obj.status
+          expectedStatus: obj.status
         })
       }
     })
diff --git a/server/tests/api/check-params/redundancy.ts b/server/tests/api/check-params/redundancy.ts
index dac6938de..d9f905549 100644
--- a/server/tests/api/check-params/redundancy.ts
+++ b/server/tests/api/check-params/redundancy.ts
@@ -1,30 +1,25 @@
 /* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
 
 import 'mocha'
-import { VideoCreateResult } from '@shared/models'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
 import {
   checkBadCountPagination,
   checkBadSortPagination,
   checkBadStartPagination,
   cleanupTests,
-  createUser,
+  createMultipleServers,
   doubleFollow,
-  flushAndRunMultipleServers,
-  getVideo,
   makeDeleteRequest,
   makeGetRequest,
   makePostBodyRequest,
   makePutBodyRequest,
-  ServerInfo,
+  PeerTubeServer,
   setAccessTokensToServers,
-  uploadVideoAndGetId,
-  userLogin,
   waitJobs
-} from '../../../../shared/extra-utils'
+} from '@shared/extra-utils'
+import { HttpStatusCode, VideoCreateResult } from '@shared/models'
 
 describe('Test server redundancy API validators', function () {
-  let servers: ServerInfo[]
+  let servers: PeerTubeServer[]
   let userAccessToken = null
   let videoIdLocal: number
   let videoRemote: VideoCreateResult
@@ -34,7 +29,7 @@ describe('Test server redundancy API validators', function () {
   before(async function () {
     this.timeout(80000)
 
-    servers = await flushAndRunMultipleServers(2)
+    servers = await createMultipleServers(2)
 
     await setAccessTokensToServers(servers)
     await doubleFollow(servers[0], servers[1])
@@ -44,17 +39,16 @@ describe('Test server redundancy API validators', function () {
       password: 'password'
     }
 
-    await createUser({ url: servers[0].url, accessToken: servers[0].accessToken, username: user.username, password: user.password })
-    userAccessToken = await userLogin(servers[0], user)
+    await servers[0].users.create({ username: user.username, password: user.password })
+    userAccessToken = await servers[0].login.getAccessToken(user)
 
-    videoIdLocal = (await uploadVideoAndGetId({ server: servers[0], videoName: 'video' })).id
+    videoIdLocal = (await servers[0].videos.quickUpload({ name: 'video' })).id
 
-    const remoteUUID = (await uploadVideoAndGetId({ server: servers[1], videoName: 'video' })).uuid
+    const remoteUUID = (await servers[1].videos.quickUpload({ name: 'video' })).uuid
 
     await waitJobs(servers)
 
-    const resVideo = await getVideo(servers[0].url, remoteUUID)
-    videoRemote = resVideo.body
+    videoRemote = await servers[0].videos.get({ id: remoteUUID })
   })
 
   describe('When listing redundancies', function () {
@@ -69,11 +63,11 @@ describe('Test server redundancy API validators', function () {
     })
 
     it('Should fail with an invalid token', async function () {
-      await makeGetRequest({ url, path, token: 'fake_token', statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401 })
+      await makeGetRequest({ url, path, token: 'fake_token', expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail if the user is not an administrator', async function () {
-      await makeGetRequest({ url, path, token: userAccessToken, statusCodeExpected: HttpStatusCode.FORBIDDEN_403 })
+      await makeGetRequest({ url, path, token: userAccessToken, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
     })
 
     it('Should fail with a bad start pagination', async function () {
@@ -97,7 +91,7 @@ describe('Test server redundancy API validators', function () {
     })
 
     it('Should succeed with the correct params', async function () {
-      await makeGetRequest({ url, path, token, query: { target: 'my-videos' }, statusCodeExpected: HttpStatusCode.OK_200 })
+      await makeGetRequest({ url, path, token, query: { target: 'my-videos' }, expectedStatus: HttpStatusCode.OK_200 })
     })
   })
 
@@ -113,11 +107,11 @@ describe('Test server redundancy API validators', function () {
     })
 
     it('Should fail with an invalid token', async function () {
-      await makePostBodyRequest({ url, path, token: 'fake_token', statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401 })
+      await makePostBodyRequest({ url, path, token: 'fake_token', expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail if the user is not an administrator', async function () {
-      await makePostBodyRequest({ url, path, token: userAccessToken, statusCodeExpected: HttpStatusCode.FORBIDDEN_403 })
+      await makePostBodyRequest({ url, path, token: userAccessToken, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
     })
 
     it('Should fail without a video id', async function () {
@@ -129,7 +123,7 @@ describe('Test server redundancy API validators', function () {
     })
 
     it('Should fail with a not found video id', async function () {
-      await makePostBodyRequest({ url, path, token, fields: { videoId: 6565 }, statusCodeExpected: HttpStatusCode.NOT_FOUND_404 })
+      await makePostBodyRequest({ url, path, token, fields: { videoId: 6565 }, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
 
     it('Should fail with a local a video id', async function () {
@@ -142,7 +136,7 @@ describe('Test server redundancy API validators', function () {
         path,
         token,
         fields: { videoId: videoRemote.shortUUID },
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
 
@@ -156,7 +150,7 @@ describe('Test server redundancy API validators', function () {
         path,
         token,
         fields: { videoId: videoRemote.uuid },
-        statusCodeExpected: HttpStatusCode.CONFLICT_409
+        expectedStatus: HttpStatusCode.CONFLICT_409
       })
     })
   })
@@ -173,11 +167,11 @@ describe('Test server redundancy API validators', function () {
     })
 
     it('Should fail with an invalid token', async function () {
-      await makeDeleteRequest({ url, path: path + '1', token: 'fake_token', statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401 })
+      await makeDeleteRequest({ url, path: path + '1', token: 'fake_token', expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail if the user is not an administrator', async function () {
-      await makeDeleteRequest({ url, path: path + '1', token: userAccessToken, statusCodeExpected: HttpStatusCode.FORBIDDEN_403 })
+      await makeDeleteRequest({ url, path: path + '1', token: userAccessToken, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
     })
 
     it('Should fail with an incorrect video id', async function () {
@@ -185,7 +179,7 @@ describe('Test server redundancy API validators', function () {
     })
 
     it('Should fail with a not found video redundancy', async function () {
-      await makeDeleteRequest({ url, path: path + '454545', token, statusCodeExpected: HttpStatusCode.NOT_FOUND_404 })
+      await makeDeleteRequest({ url, path: path + '454545', token, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
   })
 
@@ -198,7 +192,7 @@ describe('Test server redundancy API validators', function () {
         path: path + '/localhost:' + servers[1].port,
         fields: { redundancyAllowed: true },
         token: 'fake_token',
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -208,7 +202,7 @@ describe('Test server redundancy API validators', function () {
         path: path + '/localhost:' + servers[1].port,
         fields: { redundancyAllowed: true },
         token: userAccessToken,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
 
@@ -218,7 +212,7 @@ describe('Test server redundancy API validators', function () {
         path: path + '/example.com',
         fields: { redundancyAllowed: true },
         token: servers[0].accessToken,
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+        expectedStatus: HttpStatusCode.NOT_FOUND_404
       })
     })
 
@@ -228,7 +222,7 @@ describe('Test server redundancy API validators', function () {
         path: path + '/localhost:' + servers[1].port,
         fields: { blabla: true },
         token: servers[0].accessToken,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
@@ -238,7 +232,7 @@ describe('Test server redundancy API validators', function () {
         path: path + '/localhost:' + servers[1].port,
         fields: { redundancyAllowed: true },
         token: servers[0].accessToken,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
   })
diff --git a/server/tests/api/check-params/search.ts b/server/tests/api/check-params/search.ts
index 20ad46cff..a3da54e1f 100644
--- a/server/tests/api/check-params/search.ts
+++ b/server/tests/api/check-params/search.ts
@@ -2,41 +2,39 @@
 
 import 'mocha'
 import {
+  checkBadCountPagination,
+  checkBadSortPagination,
+  checkBadStartPagination,
   cleanupTests,
-  flushAndRunServer,
-  immutableAssign,
+  createSingleServer,
   makeGetRequest,
-  ServerInfo,
-  updateCustomSubConfig,
+  PeerTubeServer,
   setAccessTokensToServers
-} from '../../../../shared/extra-utils'
-import {
-  checkBadCountPagination,
-  checkBadSortPagination,
-  checkBadStartPagination
-} from '../../../../shared/extra-utils/requests/check-api-params'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
-
-function updateSearchIndex (server: ServerInfo, enabled: boolean, disableLocalSearch = false) {
-  return updateCustomSubConfig(server.url, server.accessToken, {
-    search: {
-      searchIndex: {
-        enabled,
-        disableLocalSearch
+} from '@shared/extra-utils'
+import { HttpStatusCode } from '@shared/models'
+
+function updateSearchIndex (server: PeerTubeServer, enabled: boolean, disableLocalSearch = false) {
+  return server.config.updateCustomSubConfig({
+    newConfig: {
+      search: {
+        searchIndex: {
+          enabled,
+          disableLocalSearch
+        }
       }
     }
   })
 }
 
 describe('Test videos API validator', function () {
-  let server: ServerInfo
+  let server: PeerTubeServer
 
   // ---------------------------------------------------------------
 
   before(async function () {
     this.timeout(30000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
     await setAccessTokensToServers([ server ])
   })
 
@@ -60,83 +58,83 @@ describe('Test videos API validator', function () {
     })
 
     it('Should success with the correct parameters', async function () {
-      await makeGetRequest({ url: server.url, path, query, statusCodeExpected: HttpStatusCode.OK_200 })
+      await makeGetRequest({ url: server.url, path, query, expectedStatus: HttpStatusCode.OK_200 })
     })
 
     it('Should fail with an invalid category', async function () {
-      const customQuery1 = immutableAssign(query, { categoryOneOf: [ 'aa', 'b' ] })
-      await makeGetRequest({ url: server.url, path, query: customQuery1, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
+      const customQuery1 = { ...query, categoryOneOf: [ 'aa', 'b' ] }
+      await makeGetRequest({ url: server.url, path, query: customQuery1, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
 
-      const customQuery2 = immutableAssign(query, { categoryOneOf: 'a' })
-      await makeGetRequest({ url: server.url, path, query: customQuery2, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
+      const customQuery2 = { ...query, categoryOneOf: 'a' }
+      await makeGetRequest({ url: server.url, path, query: customQuery2, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
     })
 
     it('Should succeed with a valid category', async function () {
-      const customQuery1 = immutableAssign(query, { categoryOneOf: [ 1, 7 ] })
-      await makeGetRequest({ url: server.url, path, query: customQuery1, statusCodeExpected: HttpStatusCode.OK_200 })
+      const customQuery1 = { ...query, categoryOneOf: [ 1, 7 ] }
+      await makeGetRequest({ url: server.url, path, query: customQuery1, expectedStatus: HttpStatusCode.OK_200 })
 
-      const customQuery2 = immutableAssign(query, { categoryOneOf: 1 })
-      await makeGetRequest({ url: server.url, path, query: customQuery2, statusCodeExpected: HttpStatusCode.OK_200 })
+      const customQuery2 = { ...query, categoryOneOf: 1 }
+      await makeGetRequest({ url: server.url, path, query: customQuery2, expectedStatus: HttpStatusCode.OK_200 })
     })
 
     it('Should fail with an invalid licence', async function () {
-      const customQuery1 = immutableAssign(query, { licenceOneOf: [ 'aa', 'b' ] })
-      await makeGetRequest({ url: server.url, path, query: customQuery1, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
+      const customQuery1 = { ...query, licenceOneOf: [ 'aa', 'b' ] }
+      await makeGetRequest({ url: server.url, path, query: customQuery1, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
 
-      const customQuery2 = immutableAssign(query, { licenceOneOf: 'a' })
-      await makeGetRequest({ url: server.url, path, query: customQuery2, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
+      const customQuery2 = { ...query, licenceOneOf: 'a' }
+      await makeGetRequest({ url: server.url, path, query: customQuery2, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
     })
 
     it('Should succeed with a valid licence', async function () {
-      const customQuery1 = immutableAssign(query, { licenceOneOf: [ 1, 2 ] })
-      await makeGetRequest({ url: server.url, path, query: customQuery1, statusCodeExpected: HttpStatusCode.OK_200 })
+      const customQuery1 = { ...query, licenceOneOf: [ 1, 2 ] }
+      await makeGetRequest({ url: server.url, path, query: customQuery1, expectedStatus: HttpStatusCode.OK_200 })
 
-      const customQuery2 = immutableAssign(query, { licenceOneOf: 1 })
-      await makeGetRequest({ url: server.url, path, query: customQuery2, statusCodeExpected: HttpStatusCode.OK_200 })
+      const customQuery2 = { ...query, licenceOneOf: 1 }
+      await makeGetRequest({ url: server.url, path, query: customQuery2, expectedStatus: HttpStatusCode.OK_200 })
     })
 
     it('Should succeed with a valid language', async function () {
-      const customQuery1 = immutableAssign(query, { languageOneOf: [ 'fr', 'en' ] })
-      await makeGetRequest({ url: server.url, path, query: customQuery1, statusCodeExpected: HttpStatusCode.OK_200 })
+      const customQuery1 = { ...query, languageOneOf: [ 'fr', 'en' ] }
+      await makeGetRequest({ url: server.url, path, query: customQuery1, expectedStatus: HttpStatusCode.OK_200 })
 
-      const customQuery2 = immutableAssign(query, { languageOneOf: 'fr' })
-      await makeGetRequest({ url: server.url, path, query: customQuery2, statusCodeExpected: HttpStatusCode.OK_200 })
+      const customQuery2 = { ...query, languageOneOf: 'fr' }
+      await makeGetRequest({ url: server.url, path, query: customQuery2, expectedStatus: HttpStatusCode.OK_200 })
     })
 
     it('Should succeed with valid tags', async function () {
-      const customQuery1 = immutableAssign(query, { tagsOneOf: [ 'tag1', 'tag2' ] })
-      await makeGetRequest({ url: server.url, path, query: customQuery1, statusCodeExpected: HttpStatusCode.OK_200 })
+      const customQuery1 = { ...query, tagsOneOf: [ 'tag1', 'tag2' ] }
+      await makeGetRequest({ url: server.url, path, query: customQuery1, expectedStatus: HttpStatusCode.OK_200 })
 
-      const customQuery2 = immutableAssign(query, { tagsOneOf: 'tag1' })
-      await makeGetRequest({ url: server.url, path, query: customQuery2, statusCodeExpected: HttpStatusCode.OK_200 })
+      const customQuery2 = { ...query, tagsOneOf: 'tag1' }
+      await makeGetRequest({ url: server.url, path, query: customQuery2, expectedStatus: HttpStatusCode.OK_200 })
 
-      const customQuery3 = immutableAssign(query, { tagsAllOf: [ 'tag1', 'tag2' ] })
-      await makeGetRequest({ url: server.url, path, query: customQuery3, statusCodeExpected: HttpStatusCode.OK_200 })
+      const customQuery3 = { ...query, tagsAllOf: [ 'tag1', 'tag2' ] }
+      await makeGetRequest({ url: server.url, path, query: customQuery3, expectedStatus: HttpStatusCode.OK_200 })
 
-      const customQuery4 = immutableAssign(query, { tagsAllOf: 'tag1' })
-      await makeGetRequest({ url: server.url, path, query: customQuery4, statusCodeExpected: HttpStatusCode.OK_200 })
+      const customQuery4 = { ...query, tagsAllOf: 'tag1' }
+      await makeGetRequest({ url: server.url, path, query: customQuery4, expectedStatus: HttpStatusCode.OK_200 })
     })
 
     it('Should fail with invalid durations', async function () {
-      const customQuery1 = immutableAssign(query, { durationMin: 'hello' })
-      await makeGetRequest({ url: server.url, path, query: customQuery1, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
+      const customQuery1 = { ...query, durationMin: 'hello' }
+      await makeGetRequest({ url: server.url, path, query: customQuery1, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
 
-      const customQuery2 = immutableAssign(query, { durationMax: 'hello' })
-      await makeGetRequest({ url: server.url, path, query: customQuery2, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
+      const customQuery2 = { ...query, durationMax: 'hello' }
+      await makeGetRequest({ url: server.url, path, query: customQuery2, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
     })
 
     it('Should fail with invalid dates', async function () {
-      const customQuery1 = immutableAssign(query, { startDate: 'hello' })
-      await makeGetRequest({ url: server.url, path, query: customQuery1, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
+      const customQuery1 = { ...query, startDate: 'hello' }
+      await makeGetRequest({ url: server.url, path, query: customQuery1, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
 
-      const customQuery2 = immutableAssign(query, { endDate: 'hello' })
-      await makeGetRequest({ url: server.url, path, query: customQuery2, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
+      const customQuery2 = { ...query, endDate: 'hello' }
+      await makeGetRequest({ url: server.url, path, query: customQuery2, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
 
-      const customQuery3 = immutableAssign(query, { originallyPublishedStartDate: 'hello' })
-      await makeGetRequest({ url: server.url, path, query: customQuery3, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
+      const customQuery3 = { ...query, originallyPublishedStartDate: 'hello' }
+      await makeGetRequest({ url: server.url, path, query: customQuery3, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
 
-      const customQuery4 = immutableAssign(query, { originallyPublishedEndDate: 'hello' })
-      await makeGetRequest({ url: server.url, path, query: customQuery4, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
+      const customQuery4 = { ...query, originallyPublishedEndDate: 'hello' }
+      await makeGetRequest({ url: server.url, path, query: customQuery4, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
     })
   })
 
@@ -160,7 +158,7 @@ describe('Test videos API validator', function () {
     })
 
     it('Should success with the correct parameters', async function () {
-      await makeGetRequest({ url: server.url, path, query, statusCodeExpected: HttpStatusCode.OK_200 })
+      await makeGetRequest({ url: server.url, path, query, expectedStatus: HttpStatusCode.OK_200 })
     })
   })
 
@@ -184,7 +182,7 @@ describe('Test videos API validator', function () {
     })
 
     it('Should success with the correct parameters', async function () {
-      await makeGetRequest({ url: server.url, path, query, statusCodeExpected: HttpStatusCode.OK_200 })
+      await makeGetRequest({ url: server.url, path, query, expectedStatus: HttpStatusCode.OK_200 })
     })
   })
 
@@ -202,42 +200,42 @@ describe('Test videos API validator', function () {
 
       for (const path of paths) {
         {
-          const customQuery = immutableAssign(query, { searchTarget: 'hello' })
-          await makeGetRequest({ url: server.url, path, query: customQuery, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
+          const customQuery = { ...query, searchTarget: 'hello' }
+          await makeGetRequest({ url: server.url, path, query: customQuery, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
         }
 
         {
-          const customQuery = immutableAssign(query, { searchTarget: undefined })
-          await makeGetRequest({ url: server.url, path, query: customQuery, statusCodeExpected: HttpStatusCode.OK_200 })
+          const customQuery = { ...query, searchTarget: undefined }
+          await makeGetRequest({ url: server.url, path, query: customQuery, expectedStatus: HttpStatusCode.OK_200 })
         }
 
         {
-          const customQuery = immutableAssign(query, { searchTarget: 'local' })
-          await makeGetRequest({ url: server.url, path, query: customQuery, statusCodeExpected: HttpStatusCode.OK_200 })
+          const customQuery = { ...query, searchTarget: 'local' }
+          await makeGetRequest({ url: server.url, path, query: customQuery, expectedStatus: HttpStatusCode.OK_200 })
         }
 
         {
-          const customQuery = immutableAssign(query, { searchTarget: 'search-index' })
-          await makeGetRequest({ url: server.url, path, query: customQuery, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
+          const customQuery = { ...query, searchTarget: 'search-index' }
+          await makeGetRequest({ url: server.url, path, query: customQuery, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
         }
 
         await updateSearchIndex(server, true, true)
 
         {
-          const customQuery = immutableAssign(query, { searchTarget: 'local' })
-          await makeGetRequest({ url: server.url, path, query: customQuery, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
+          const customQuery = { ...query, searchTarget: 'local' }
+          await makeGetRequest({ url: server.url, path, query: customQuery, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
         }
 
         {
-          const customQuery = immutableAssign(query, { searchTarget: 'search-index' })
-          await makeGetRequest({ url: server.url, path, query: customQuery, statusCodeExpected: HttpStatusCode.OK_200 })
+          const customQuery = { ...query, searchTarget: 'search-index' }
+          await makeGetRequest({ url: server.url, path, query: customQuery, expectedStatus: HttpStatusCode.OK_200 })
         }
 
         await updateSearchIndex(server, true, false)
 
         {
-          const customQuery = immutableAssign(query, { searchTarget: 'local' })
-          await makeGetRequest({ url: server.url, path, query: customQuery, statusCodeExpected: HttpStatusCode.OK_200 })
+          const customQuery = { ...query, searchTarget: 'local' }
+          await makeGetRequest({ url: server.url, path, query: customQuery, expectedStatus: HttpStatusCode.OK_200 })
         }
 
         await updateSearchIndex(server, false, false)
diff --git a/server/tests/api/check-params/services.ts b/server/tests/api/check-params/services.ts
index 514e3da70..4c4a5cade 100644
--- a/server/tests/api/check-params/services.ts
+++ b/server/tests/api/check-params/services.ts
@@ -1,22 +1,18 @@
 /* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
 
 import 'mocha'
-
 import {
   cleanupTests,
-  flushAndRunServer,
+  createSingleServer,
   makeGetRequest,
-  ServerInfo,
+  PeerTubeServer,
   setAccessTokensToServers,
-  uploadVideo,
-  createVideoPlaylist,
   setDefaultVideoChannel
-} from '../../../../shared/extra-utils'
-import { VideoPlaylistPrivacy } from '@shared/models'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
+} from '@shared/extra-utils'
+import { HttpStatusCode, VideoPlaylistPrivacy } from '@shared/models'
 
 describe('Test services API validators', function () {
-  let server: ServerInfo
+  let server: PeerTubeServer
   let playlistUUID: string
 
   // ---------------------------------------------------------------
@@ -24,27 +20,22 @@ describe('Test services API validators', function () {
   before(async function () {
     this.timeout(60000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
     await setAccessTokensToServers([ server ])
     await setDefaultVideoChannel([ server ])
 
-    {
-      const res = await uploadVideo(server.url, server.accessToken, { name: 'my super name' })
-      server.video = res.body.video
-    }
+    server.store.video = await server.videos.upload({ attributes: { name: 'my super name' } })
 
     {
-      const res = await createVideoPlaylist({
-        url: server.url,
-        token: server.accessToken,
-        playlistAttrs: {
+      const created = await server.playlists.create({
+        attributes: {
           displayName: 'super playlist',
           privacy: VideoPlaylistPrivacy.PUBLIC,
-          videoChannelId: server.videoChannel.id
+          videoChannelId: server.store.channel.id
         }
       })
 
-      playlistUUID = res.body.videoPlaylist.uuid
+      playlistUUID = created.uuid
     }
   })
 
@@ -56,7 +47,7 @@ describe('Test services API validators', function () {
     })
 
     it('Should fail with an invalid host', async function () {
-      const embedUrl = 'http://hello.com/videos/watch/' + server.video.uuid
+      const embedUrl = 'http://hello.com/videos/watch/' + server.store.video.uuid
       await checkParamEmbed(server, embedUrl)
     })
 
@@ -71,37 +62,37 @@ describe('Test services API validators', function () {
     })
 
     it('Should fail with an invalid path', async function () {
-      const embedUrl = `http://localhost:${server.port}/videos/watchs/${server.video.uuid}`
+      const embedUrl = `http://localhost:${server.port}/videos/watchs/${server.store.video.uuid}`
 
       await checkParamEmbed(server, embedUrl)
     })
 
     it('Should fail with an invalid max height', async function () {
-      const embedUrl = `http://localhost:${server.port}/videos/watch/${server.video.uuid}`
+      const embedUrl = `http://localhost:${server.port}/videos/watch/${server.store.video.uuid}`
 
       await checkParamEmbed(server, embedUrl, HttpStatusCode.BAD_REQUEST_400, { maxheight: 'hello' })
     })
 
     it('Should fail with an invalid max width', async function () {
-      const embedUrl = `http://localhost:${server.port}/videos/watch/${server.video.uuid}`
+      const embedUrl = `http://localhost:${server.port}/videos/watch/${server.store.video.uuid}`
 
       await checkParamEmbed(server, embedUrl, HttpStatusCode.BAD_REQUEST_400, { maxwidth: 'hello' })
     })
 
     it('Should fail with an invalid format', async function () {
-      const embedUrl = `http://localhost:${server.port}/videos/watch/${server.video.uuid}`
+      const embedUrl = `http://localhost:${server.port}/videos/watch/${server.store.video.uuid}`
 
       await checkParamEmbed(server, embedUrl, HttpStatusCode.BAD_REQUEST_400, { format: 'blabla' })
     })
 
     it('Should fail with a non supported format', async function () {
-      const embedUrl = `http://localhost:${server.port}/videos/watch/${server.video.uuid}`
+      const embedUrl = `http://localhost:${server.port}/videos/watch/${server.store.video.uuid}`
 
       await checkParamEmbed(server, embedUrl, HttpStatusCode.NOT_IMPLEMENTED_501, { format: 'xml' })
     })
 
     it('Should succeed with the correct params with a video', async function () {
-      const embedUrl = `http://localhost:${server.port}/videos/watch/${server.video.uuid}`
+      const embedUrl = `http://localhost:${server.port}/videos/watch/${server.store.video.uuid}`
       const query = {
         format: 'json',
         maxheight: 400,
@@ -128,13 +119,13 @@ describe('Test services API validators', function () {
   })
 })
 
-function checkParamEmbed (server: ServerInfo, embedUrl: string, statusCodeExpected = HttpStatusCode.BAD_REQUEST_400, query = {}) {
+function checkParamEmbed (server: PeerTubeServer, embedUrl: string, expectedStatus = HttpStatusCode.BAD_REQUEST_400, query = {}) {
   const path = '/services/oembed'
 
   return makeGetRequest({
     url: server.url,
     path,
     query: Object.assign(query, { url: embedUrl }),
-    statusCodeExpected
+    expectedStatus
   })
 }
diff --git a/server/tests/api/check-params/upload-quota.ts b/server/tests/api/check-params/upload-quota.ts
index d0fbec415..322e93d0d 100644
--- a/server/tests/api/check-params/upload-quota.ts
+++ b/server/tests/api/check-params/upload-quota.ts
@@ -2,46 +2,39 @@
 
 import 'mocha'
 import { expect } from 'chai'
-import { HttpStatusCode, randomInt } from '@shared/core-utils'
-import { getGoodVideoUrl, getMagnetURI, getMyVideoImports, importVideo } from '@shared/extra-utils/videos/video-imports'
-import { MyUser, VideoImport, VideoImportState, VideoPrivacy } from '@shared/models'
+import { randomInt } from '@shared/core-utils'
 import {
   cleanupTests,
-  flushAndRunServer,
-  getMyUserInformation,
-  immutableAssign,
-  registerUser,
-  ServerInfo,
+  createSingleServer,
+  FIXTURE_URLS,
+  PeerTubeServer,
   setAccessTokensToServers,
   setDefaultVideoChannel,
-  updateUser,
-  uploadVideo,
-  userLogin,
+  VideosCommand,
   waitJobs
-} from '../../../../shared/extra-utils'
+} from '@shared/extra-utils'
+import { HttpStatusCode, VideoImportState, VideoPrivacy } from '@shared/models'
 
 describe('Test upload quota', function () {
-  let server: ServerInfo
+  let server: PeerTubeServer
   let rootId: number
+  let command: VideosCommand
 
   // ---------------------------------------------------------------
 
   before(async function () {
     this.timeout(30000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
     await setAccessTokensToServers([ server ])
     await setDefaultVideoChannel([ server ])
 
-    const res = await getMyUserInformation(server.url, server.accessToken)
-    rootId = (res.body as MyUser).id
+    const user = await server.users.getMyInfo()
+    rootId = user.id
 
-    await updateUser({
-      url: server.url,
-      userId: rootId,
-      accessToken: server.accessToken,
-      videoQuota: 42
-    })
+    await server.users.update({ userId: rootId, videoQuota: 42 })
+
+    command = server.videos
   })
 
   describe('When having a video quota', function () {
@@ -50,49 +43,48 @@ describe('Test upload quota', function () {
       this.timeout(30000)
 
       const user = { username: 'registered' + randomInt(1, 1500), password: 'password' }
-      await registerUser(server.url, user.username, user.password)
-      const userAccessToken = await userLogin(server, user)
+      await server.users.register(user)
+      const userToken = await server.login.getAccessToken(user)
 
-      const videoAttributes = { fixture: 'video_short2.webm' }
+      const attributes = { fixture: 'video_short2.webm' }
       for (let i = 0; i < 5; i++) {
-        await uploadVideo(server.url, userAccessToken, videoAttributes)
+        await command.upload({ token: userToken, attributes })
       }
 
-      await uploadVideo(server.url, userAccessToken, videoAttributes, HttpStatusCode.PAYLOAD_TOO_LARGE_413, 'legacy')
+      await command.upload({ token: userToken, attributes, expectedStatus: HttpStatusCode.PAYLOAD_TOO_LARGE_413, mode: 'legacy' })
     })
 
     it('Should fail with a registered user having too many videos with resumable upload', async function () {
       this.timeout(30000)
 
       const user = { username: 'registered' + randomInt(1, 1500), password: 'password' }
-      await registerUser(server.url, user.username, user.password)
-      const userAccessToken = await userLogin(server, user)
+      await server.users.register(user)
+      const userToken = await server.login.getAccessToken(user)
 
-      const videoAttributes = { fixture: 'video_short2.webm' }
+      const attributes = { fixture: 'video_short2.webm' }
       for (let i = 0; i < 5; i++) {
-        await uploadVideo(server.url, userAccessToken, videoAttributes)
+        await command.upload({ token: userToken, attributes })
       }
 
-      await uploadVideo(server.url, userAccessToken, videoAttributes, HttpStatusCode.PAYLOAD_TOO_LARGE_413, 'resumable')
+      await command.upload({ token: userToken, attributes, expectedStatus: HttpStatusCode.PAYLOAD_TOO_LARGE_413, mode: 'resumable' })
     })
 
     it('Should fail to import with HTTP/Torrent/magnet', async function () {
       this.timeout(120000)
 
       const baseAttributes = {
-        channelId: server.videoChannel.id,
+        channelId: server.store.channel.id,
         privacy: VideoPrivacy.PUBLIC
       }
-      await importVideo(server.url, server.accessToken, immutableAssign(baseAttributes, { targetUrl: getGoodVideoUrl() }))
-      await importVideo(server.url, server.accessToken, immutableAssign(baseAttributes, { magnetUri: getMagnetURI() }))
-      await importVideo(server.url, server.accessToken, immutableAssign(baseAttributes, { torrentfile: 'video-720p.torrent' as any }))
+      await server.imports.importVideo({ attributes: { ...baseAttributes, targetUrl: FIXTURE_URLS.goodVideo } })
+      await server.imports.importVideo({ attributes: { ...baseAttributes, magnetUri: FIXTURE_URLS.magnet } })
+      await server.imports.importVideo({ attributes: { ...baseAttributes, torrentfile: 'video-720p.torrent' as any } })
 
       await waitJobs([ server ])
 
-      const res = await getMyVideoImports(server.url, server.accessToken)
+      const { total, data: videoImports } = await server.imports.getMyVideoImports()
+      expect(total).to.equal(3)
 
-      expect(res.body.total).to.equal(3)
-      const videoImports: VideoImport[] = res.body.data
       expect(videoImports).to.have.lengthOf(3)
 
       for (const videoImport of videoImports) {
@@ -106,43 +98,34 @@ describe('Test upload quota', function () {
   describe('When having a daily video quota', function () {
 
     it('Should fail with a user having too many videos daily', async function () {
-      await updateUser({
-        url: server.url,
-        userId: rootId,
-        accessToken: server.accessToken,
-        videoQuotaDaily: 42
-      })
+      await server.users.update({ userId: rootId, videoQuotaDaily: 42 })
 
-      await uploadVideo(server.url, server.accessToken, {}, HttpStatusCode.PAYLOAD_TOO_LARGE_413, 'legacy')
-      await uploadVideo(server.url, server.accessToken, {}, HttpStatusCode.PAYLOAD_TOO_LARGE_413, 'resumable')
+      await command.upload({ expectedStatus: HttpStatusCode.PAYLOAD_TOO_LARGE_413, mode: 'legacy' })
+      await command.upload({ expectedStatus: HttpStatusCode.PAYLOAD_TOO_LARGE_413, mode: 'resumable' })
     })
   })
 
   describe('When having an absolute and daily video quota', function () {
     it('Should fail if exceeding total quota', async function () {
-      await updateUser({
-        url: server.url,
+      await server.users.update({
         userId: rootId,
-        accessToken: server.accessToken,
         videoQuota: 42,
         videoQuotaDaily: 1024 * 1024 * 1024
       })
 
-      await uploadVideo(server.url, server.accessToken, {}, HttpStatusCode.PAYLOAD_TOO_LARGE_413, 'legacy')
-      await uploadVideo(server.url, server.accessToken, {}, HttpStatusCode.PAYLOAD_TOO_LARGE_413, 'resumable')
+      await command.upload({ expectedStatus: HttpStatusCode.PAYLOAD_TOO_LARGE_413, mode: 'legacy' })
+      await command.upload({ expectedStatus: HttpStatusCode.PAYLOAD_TOO_LARGE_413, mode: 'resumable' })
     })
 
     it('Should fail if exceeding daily quota', async function () {
-      await updateUser({
-        url: server.url,
+      await server.users.update({
         userId: rootId,
-        accessToken: server.accessToken,
         videoQuota: 1024 * 1024 * 1024,
         videoQuotaDaily: 42
       })
 
-      await uploadVideo(server.url, server.accessToken, {}, HttpStatusCode.PAYLOAD_TOO_LARGE_413, 'legacy')
-      await uploadVideo(server.url, server.accessToken, {}, HttpStatusCode.PAYLOAD_TOO_LARGE_413, 'resumable')
+      await command.upload({ expectedStatus: HttpStatusCode.PAYLOAD_TOO_LARGE_413, mode: 'legacy' })
+      await command.upload({ expectedStatus: HttpStatusCode.PAYLOAD_TOO_LARGE_413, mode: 'resumable' })
     })
   })
 
diff --git a/server/tests/api/check-params/user-notifications.ts b/server/tests/api/check-params/user-notifications.ts
index 26d4423f9..17edf5aa1 100644
--- a/server/tests/api/check-params/user-notifications.ts
+++ b/server/tests/api/check-params/user-notifications.ts
@@ -2,35 +2,30 @@
 
 import 'mocha'
 import { io } from 'socket.io-client'
-
 import {
+  checkBadCountPagination,
+  checkBadSortPagination,
+  checkBadStartPagination,
   cleanupTests,
-  flushAndRunServer,
-  immutableAssign,
+  createSingleServer,
   makeGetRequest,
   makePostBodyRequest,
   makePutBodyRequest,
-  ServerInfo,
+  PeerTubeServer,
   setAccessTokensToServers,
   wait
-} from '../../../../shared/extra-utils'
-import {
-  checkBadCountPagination,
-  checkBadSortPagination,
-  checkBadStartPagination
-} from '../../../../shared/extra-utils/requests/check-api-params'
-import { UserNotificationSetting, UserNotificationSettingValue } from '../../../../shared/models/users'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
+} from '@shared/extra-utils'
+import { HttpStatusCode, UserNotificationSetting, UserNotificationSettingValue } from '@shared/models'
 
 describe('Test user notifications API validators', function () {
-  let server: ServerInfo
+  let server: PeerTubeServer
 
   // ---------------------------------------------------------------
 
   before(async function () {
     this.timeout(30000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
 
     await setAccessTokensToServers([ server ])
   })
@@ -58,7 +53,7 @@ describe('Test user notifications API validators', function () {
           unread: 'toto'
         },
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
 
@@ -66,7 +61,7 @@ describe('Test user notifications API validators', function () {
       await makeGetRequest({
         url: server.url,
         path,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -75,7 +70,7 @@ describe('Test user notifications API validators', function () {
         url: server.url,
         path,
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
   })
@@ -91,7 +86,7 @@ describe('Test user notifications API validators', function () {
           ids: [ 'hello' ]
         },
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
 
       await makePostBodyRequest({
@@ -101,7 +96,7 @@ describe('Test user notifications API validators', function () {
           ids: [ ]
         },
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
 
       await makePostBodyRequest({
@@ -111,7 +106,7 @@ describe('Test user notifications API validators', function () {
           ids: 5
         },
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
@@ -122,7 +117,7 @@ describe('Test user notifications API validators', function () {
         fields: {
           ids: [ 5 ]
         },
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -134,7 +129,7 @@ describe('Test user notifications API validators', function () {
           ids: [ 5 ]
         },
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
   })
@@ -146,7 +141,7 @@ describe('Test user notifications API validators', function () {
       await makePostBodyRequest({
         url: server.url,
         path,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -155,7 +150,7 @@ describe('Test user notifications API validators', function () {
         url: server.url,
         path,
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
   })
@@ -187,32 +182,32 @@ describe('Test user notifications API validators', function () {
         path,
         token: server.accessToken,
         fields: { newVideoFromSubscription: UserNotificationSettingValue.WEB },
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
     it('Should fail with incorrect field values', async function () {
       {
-        const fields = immutableAssign(correctFields, { newCommentOnMyVideo: 15 })
+        const fields = { ...correctFields, newCommentOnMyVideo: 15 }
 
         await makePutBodyRequest({
           url: server.url,
           path,
           token: server.accessToken,
           fields,
-          statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+          expectedStatus: HttpStatusCode.BAD_REQUEST_400
         })
       }
 
       {
-        const fields = immutableAssign(correctFields, { newCommentOnMyVideo: 'toto' })
+        const fields = { ...correctFields, newCommentOnMyVideo: 'toto' }
 
         await makePutBodyRequest({
           url: server.url,
           path,
           fields,
           token: server.accessToken,
-          statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+          expectedStatus: HttpStatusCode.BAD_REQUEST_400
         })
       }
     })
@@ -222,7 +217,7 @@ describe('Test user notifications API validators', function () {
         url: server.url,
         path,
         fields: correctFields,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -232,7 +227,7 @@ describe('Test user notifications API validators', function () {
         path,
         token: server.accessToken,
         fields: correctFields,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
   })
diff --git a/server/tests/api/check-params/user-subscriptions.ts b/server/tests/api/check-params/user-subscriptions.ts
index 538201647..624069c80 100644
--- a/server/tests/api/check-params/user-subscriptions.ts
+++ b/server/tests/api/check-params/user-subscriptions.ts
@@ -1,30 +1,24 @@
 /* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
 
 import 'mocha'
-
 import {
+  checkBadCountPagination,
+  checkBadSortPagination,
+  checkBadStartPagination,
   cleanupTests,
-  createUser,
-  flushAndRunServer,
+  createSingleServer,
   makeDeleteRequest,
   makeGetRequest,
   makePostBodyRequest,
-  ServerInfo,
+  PeerTubeServer,
   setAccessTokensToServers,
-  userLogin
-} from '../../../../shared/extra-utils'
-
-import {
-  checkBadCountPagination,
-  checkBadSortPagination,
-  checkBadStartPagination
-} from '../../../../shared/extra-utils/requests/check-api-params'
-import { waitJobs } from '../../../../shared/extra-utils/server/jobs'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
+  waitJobs
+} from '@shared/extra-utils'
+import { HttpStatusCode } from '@shared/models'
 
 describe('Test user subscriptions API validators', function () {
   const path = '/api/v1/users/me/subscriptions'
-  let server: ServerInfo
+  let server: PeerTubeServer
   let userAccessToken = ''
 
   // ---------------------------------------------------------------
@@ -32,7 +26,7 @@ describe('Test user subscriptions API validators', function () {
   before(async function () {
     this.timeout(30000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
 
     await setAccessTokensToServers([ server ])
 
@@ -40,8 +34,8 @@ describe('Test user subscriptions API validators', function () {
       username: 'user1',
       password: 'my super password'
     }
-    await createUser({ url: server.url, accessToken: server.accessToken, username: user.username, password: user.password })
-    userAccessToken = await userLogin(server, user)
+    await server.users.create({ username: user.username, password: user.password })
+    userAccessToken = await server.login.getAccessToken(user)
   })
 
   describe('When listing my subscriptions', function () {
@@ -61,7 +55,7 @@ describe('Test user subscriptions API validators', function () {
       await makeGetRequest({
         url: server.url,
         path,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -70,7 +64,7 @@ describe('Test user subscriptions API validators', function () {
         url: server.url,
         path,
         token: userAccessToken,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
   })
@@ -94,7 +88,7 @@ describe('Test user subscriptions API validators', function () {
       await makeGetRequest({
         url: server.url,
         path,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -103,7 +97,7 @@ describe('Test user subscriptions API validators', function () {
         url: server.url,
         path,
         token: userAccessToken,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
   })
@@ -114,7 +108,7 @@ describe('Test user subscriptions API validators', function () {
         url: server.url,
         path,
         fields: { uri: 'user1_channel@localhost:' + server.port },
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -124,7 +118,7 @@ describe('Test user subscriptions API validators', function () {
         path,
         token: server.accessToken,
         fields: { uri: 'root' },
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
 
       await makePostBodyRequest({
@@ -132,7 +126,7 @@ describe('Test user subscriptions API validators', function () {
         path,
         token: server.accessToken,
         fields: { uri: 'root@' },
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
 
       await makePostBodyRequest({
@@ -140,7 +134,7 @@ describe('Test user subscriptions API validators', function () {
         path,
         token: server.accessToken,
         fields: { uri: 'root@hello@' },
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
@@ -152,7 +146,7 @@ describe('Test user subscriptions API validators', function () {
         path,
         token: server.accessToken,
         fields: { uri: 'user1_channel@localhost:' + server.port },
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
 
       await waitJobs([ server ])
@@ -164,7 +158,7 @@ describe('Test user subscriptions API validators', function () {
       await makeGetRequest({
         url: server.url,
         path: path + '/user1_channel@localhost:' + server.port,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -173,21 +167,21 @@ describe('Test user subscriptions API validators', function () {
         url: server.url,
         path: path + '/root',
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
 
       await makeGetRequest({
         url: server.url,
         path: path + '/root@',
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
 
       await makeGetRequest({
         url: server.url,
         path: path + '/root@hello@',
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
@@ -196,7 +190,7 @@ describe('Test user subscriptions API validators', function () {
         url: server.url,
         path: path + '/root1@localhost:' + server.port,
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+        expectedStatus: HttpStatusCode.NOT_FOUND_404
       })
     })
 
@@ -205,7 +199,7 @@ describe('Test user subscriptions API validators', function () {
         url: server.url,
         path: path + '/user1_channel@localhost:' + server.port,
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
   })
@@ -217,7 +211,7 @@ describe('Test user subscriptions API validators', function () {
       await makeGetRequest({
         url: server.url,
         path: existPath,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -227,7 +221,7 @@ describe('Test user subscriptions API validators', function () {
         path: existPath,
         query: { uris: 'toto' },
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
 
       await makeGetRequest({
@@ -235,7 +229,7 @@ describe('Test user subscriptions API validators', function () {
         path: existPath,
         query: { 'uris[]': 1 },
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
@@ -245,7 +239,7 @@ describe('Test user subscriptions API validators', function () {
         path: existPath,
         query: { 'uris[]': 'coucou@localhost:' + server.port },
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
   })
@@ -255,7 +249,7 @@ describe('Test user subscriptions API validators', function () {
       await makeDeleteRequest({
         url: server.url,
         path: path + '/user1_channel@localhost:' + server.port,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -264,21 +258,21 @@ describe('Test user subscriptions API validators', function () {
         url: server.url,
         path: path + '/root',
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
 
       await makeDeleteRequest({
         url: server.url,
         path: path + '/root@',
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
 
       await makeDeleteRequest({
         url: server.url,
         path: path + '/root@hello@',
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
@@ -287,7 +281,7 @@ describe('Test user subscriptions API validators', function () {
         url: server.url,
         path: path + '/root1@localhost:' + server.port,
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+        expectedStatus: HttpStatusCode.NOT_FOUND_404
       })
     })
 
@@ -296,7 +290,7 @@ describe('Test user subscriptions API validators', function () {
         url: server.url,
         path: path + '/user1_channel@localhost:' + server.port,
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
   })
diff --git a/server/tests/api/check-params/users.ts b/server/tests/api/check-params/users.ts
index 70a872ce5..9d8f933db 100644
--- a/server/tests/api/check-params/users.ts
+++ b/server/tests/api/check-params/users.ts
@@ -2,43 +2,24 @@
 
 import 'mocha'
 import { omit } from 'lodash'
-import { User, UserRole, VideoCreateResult } from '../../../../shared'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
 import {
-  addVideoChannel,
-  blockUser,
   buildAbsoluteFixturePath,
+  checkBadCountPagination,
+  checkBadSortPagination,
+  checkBadStartPagination,
   cleanupTests,
-  createUser,
-  deleteMe,
-  flushAndRunServer,
-  getMyUserInformation,
-  getMyUserVideoRating,
-  getUserScopedTokens,
-  getUsersList,
-  immutableAssign,
+  createSingleServer,
   killallServers,
   makeGetRequest,
   makePostBodyRequest,
   makePutBodyRequest,
   makeUploadRequest,
-  registerUser,
-  removeUser,
-  renewUserScopedTokens,
-  reRunServer,
-  ServerInfo,
+  MockSmtpServer,
+  PeerTubeServer,
   setAccessTokensToServers,
-  unblockUser,
-  uploadVideo,
-  userLogin
-} from '../../../../shared/extra-utils'
-import { MockSmtpServer } from '../../../../shared/extra-utils/miscs/email'
-import {
-  checkBadCountPagination,
-  checkBadSortPagination,
-  checkBadStartPagination
-} from '../../../../shared/extra-utils/requests/check-api-params'
-import { UserAdminFlag } from '../../../../shared/models/users/user-flag.model'
+  UsersCommand
+} from '@shared/extra-utils'
+import { HttpStatusCode, UserAdminFlag, UserRole, VideoCreateResult } from '@shared/models'
 
 describe('Test users API validators', function () {
   const path = '/api/v1/users/'
@@ -46,10 +27,10 @@ describe('Test users API validators', function () {
   let rootId: number
   let moderatorId: number
   let video: VideoCreateResult
-  let server: ServerInfo
-  let serverWithRegistrationDisabled: ServerInfo
-  let userAccessToken = ''
-  let moderatorAccessToken = ''
+  let server: PeerTubeServer
+  let serverWithRegistrationDisabled: PeerTubeServer
+  let userToken = ''
+  let moderatorToken = ''
   let emailPort: number
   let overrideConfig: Object
 
@@ -65,8 +46,8 @@ describe('Test users API validators', function () {
 
     {
       const res = await Promise.all([
-        flushAndRunServer(1, overrideConfig),
-        flushAndRunServer(2)
+        createSingleServer(1, overrideConfig),
+        createSingleServer(2)
       ])
 
       server = res[0]
@@ -76,66 +57,31 @@ describe('Test users API validators', function () {
     }
 
     {
-      const user = {
-        username: 'user1',
-        password: 'my super password'
-      }
-
-      const videoQuota = 42000000
-      await createUser({
-        url: server.url,
-        accessToken: server.accessToken,
-        username: user.username,
-        password: user.password,
-        videoQuota: videoQuota
-      })
-      userAccessToken = await userLogin(server, user)
+      const user = { username: 'user1' }
+      await server.users.create({ ...user })
+      userToken = await server.login.getAccessToken(user)
     }
 
     {
-      const moderator = {
-        username: 'moderator1',
-        password: 'super password'
-      }
-
-      await createUser({
-        url: server.url,
-        accessToken: server.accessToken,
-        username: moderator.username,
-        password: moderator.password,
-        role: UserRole.MODERATOR
-      })
-
-      moderatorAccessToken = await userLogin(server, moderator)
+      const moderator = { username: 'moderator1' }
+      await server.users.create({ ...moderator, role: UserRole.MODERATOR })
+      moderatorToken = await server.login.getAccessToken(moderator)
     }
 
     {
-      const moderator = {
-        username: 'moderator2',
-        password: 'super password'
-      }
-
-      await createUser({
-        url: server.url,
-        accessToken: server.accessToken,
-        username: moderator.username,
-        password: moderator.password,
-        role: UserRole.MODERATOR
-      })
+      const moderator = { username: 'moderator2' }
+      await server.users.create({ ...moderator, role: UserRole.MODERATOR })
     }
 
     {
-      const res = await uploadVideo(server.url, server.accessToken, {})
-      video = res.body.video
+      video = await server.videos.upload()
     }
 
     {
-      const res = await getUsersList(server.url, server.accessToken)
-      const users: User[] = res.body.data
-
-      userId = users.find(u => u.username === 'user1').id
-      rootId = users.find(u => u.username === 'root').id
-      moderatorId = users.find(u => u.username === 'moderator2').id
+      const { data } = await server.users.list()
+      userId = data.find(u => u.username === 'user1').id
+      rootId = data.find(u => u.username === 'root').id
+      moderatorId = data.find(u => u.username === 'moderator2').id
     }
   })
 
@@ -156,7 +102,7 @@ describe('Test users API validators', function () {
       await makeGetRequest({
         url: server.url,
         path,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -164,8 +110,8 @@ describe('Test users API validators', function () {
       await makeGetRequest({
         url: server.url,
         path,
-        token: userAccessToken,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        token: userToken,
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
   })
@@ -182,25 +128,25 @@ describe('Test users API validators', function () {
     }
 
     it('Should fail with a too small username', async function () {
-      const fields = immutableAssign(baseCorrectParams, { username: '' })
+      const fields = { ...baseCorrectParams, username: '' }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with a too long username', async function () {
-      const fields = immutableAssign(baseCorrectParams, { username: 'super'.repeat(50) })
+      const fields = { ...baseCorrectParams, username: 'super'.repeat(50) }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with a not lowercase username', async function () {
-      const fields = immutableAssign(baseCorrectParams, { username: 'Toto' })
+      const fields = { ...baseCorrectParams, username: 'Toto' }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with an incorrect username', async function () {
-      const fields = immutableAssign(baseCorrectParams, { username: 'my username' })
+      const fields = { ...baseCorrectParams, username: 'my username' }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
@@ -212,25 +158,25 @@ describe('Test users API validators', function () {
     })
 
     it('Should fail with an invalid email', async function () {
-      const fields = immutableAssign(baseCorrectParams, { email: 'test_example.com' })
+      const fields = { ...baseCorrectParams, email: 'test_example.com' }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with a too small password', async function () {
-      const fields = immutableAssign(baseCorrectParams, { password: 'bla' })
+      const fields = { ...baseCorrectParams, password: 'bla' }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with a too long password', async function () {
-      const fields = immutableAssign(baseCorrectParams, { password: 'super'.repeat(61) })
+      const fields = { ...baseCorrectParams, password: 'super'.repeat(61) }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with empty password and no smtp configured', async function () {
-      const fields = immutableAssign(baseCorrectParams, { password: '' })
+      const fields = { ...baseCorrectParams, password: '' }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
@@ -238,33 +184,37 @@ describe('Test users API validators', function () {
     it('Should succeed with no password on a server with smtp enabled', async function () {
       this.timeout(20000)
 
-      killallServers([ server ])
+      await killallServers([ server ])
+
+      const config = {
+        ...overrideConfig,
 
-      const config = immutableAssign(overrideConfig, {
         smtp: {
           hostname: 'localhost',
           port: emailPort
         }
-      })
-      await reRunServer(server, config)
+      }
+      await server.run(config)
+
+      const fields = {
+        ...baseCorrectParams,
 
-      const fields = immutableAssign(baseCorrectParams, {
         password: '',
         username: 'create_password',
         email: 'create_password@example.com'
-      })
+      }
 
       await makePostBodyRequest({
         url: server.url,
         path: path,
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
 
     it('Should fail with invalid admin flags', async function () {
-      const fields = immutableAssign(baseCorrectParams, { adminFlags: 'toto' })
+      const fields = { ...baseCorrectParams, adminFlags: 'toto' }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
@@ -275,31 +225,31 @@ describe('Test users API validators', function () {
         path,
         token: 'super token',
         fields: baseCorrectParams,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
     it('Should fail if we add a user with the same username', async function () {
-      const fields = immutableAssign(baseCorrectParams, { username: 'user1' })
+      const fields = { ...baseCorrectParams, username: 'user1' }
 
       await makePostBodyRequest({
         url: server.url,
         path,
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.CONFLICT_409
+        expectedStatus: HttpStatusCode.CONFLICT_409
       })
     })
 
     it('Should fail if we add a user with the same email', async function () {
-      const fields = immutableAssign(baseCorrectParams, { email: 'user1@example.com' })
+      const fields = { ...baseCorrectParams, email: 'user1@example.com' }
 
       await makePostBodyRequest({
         url: server.url,
         path,
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.CONFLICT_409
+        expectedStatus: HttpStatusCode.CONFLICT_409
       })
     })
 
@@ -316,13 +266,13 @@ describe('Test users API validators', function () {
     })
 
     it('Should fail with an invalid videoQuota', async function () {
-      const fields = immutableAssign(baseCorrectParams, { videoQuota: -5 })
+      const fields = { ...baseCorrectParams, videoQuota: -5 }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with an invalid videoQuotaDaily', async function () {
-      const fields = immutableAssign(baseCorrectParams, { videoQuotaDaily: -7 })
+      const fields = { ...baseCorrectParams, videoQuotaDaily: -7 }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
@@ -334,46 +284,46 @@ describe('Test users API validators', function () {
     })
 
     it('Should fail with an invalid user role', async function () {
-      const fields = immutableAssign(baseCorrectParams, { role: 88989 })
+      const fields = { ...baseCorrectParams, role: 88989 }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with a "peertube" username', async function () {
-      const fields = immutableAssign(baseCorrectParams, { username: 'peertube' })
+      const fields = { ...baseCorrectParams, username: 'peertube' }
 
       await makePostBodyRequest({
         url: server.url,
         path,
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.CONFLICT_409
+        expectedStatus: HttpStatusCode.CONFLICT_409
       })
     })
 
     it('Should fail to create a moderator or an admin with a moderator', async function () {
       for (const role of [ UserRole.MODERATOR, UserRole.ADMINISTRATOR ]) {
-        const fields = immutableAssign(baseCorrectParams, { role })
+        const fields = { ...baseCorrectParams, role }
 
         await makePostBodyRequest({
           url: server.url,
           path,
-          token: moderatorAccessToken,
+          token: moderatorToken,
           fields,
-          statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+          expectedStatus: HttpStatusCode.FORBIDDEN_403
         })
       }
     })
 
     it('Should succeed to create a user with a moderator', async function () {
-      const fields = immutableAssign(baseCorrectParams, { username: 'a4656', email: 'a4656@example.com', role: UserRole.USER })
+      const fields = { ...baseCorrectParams, username: 'a4656', email: 'a4656@example.com', role: UserRole.USER }
 
       await makePostBodyRequest({
         url: server.url,
         path,
-        token: moderatorAccessToken,
+        token: moderatorToken,
         fields,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
 
@@ -383,16 +333,13 @@ describe('Test users API validators', function () {
         path,
         token: server.accessToken,
         fields: baseCorrectParams,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
 
     it('Should fail with a non admin user', async function () {
-      const user = {
-        username: 'user1',
-        password: 'my super password'
-      }
-      userAccessToken = await userLogin(server, user)
+      const user = { username: 'user1' }
+      userToken = await server.login.getAccessToken(user)
 
       const fields = {
         username: 'user3',
@@ -400,11 +347,12 @@ describe('Test users API validators', function () {
         password: 'my super password',
         videoQuota: 42000000
       }
-      await makePostBodyRequest({ url: server.url, path, token: userAccessToken, fields, statusCodeExpected: HttpStatusCode.FORBIDDEN_403 })
+      await makePostBodyRequest({ url: server.url, path, token: userToken, fields, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
     })
   })
 
   describe('When updating my account', function () {
+
     it('Should fail with an invalid email attribute', async function () {
       const fields = {
         email: 'blabla'
@@ -415,29 +363,29 @@ describe('Test users API validators', function () {
 
     it('Should fail with a too small password', async function () {
       const fields = {
-        currentPassword: 'my super password',
+        currentPassword: 'password',
         password: 'bla'
       }
 
-      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userAccessToken, fields })
+      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userToken, fields })
     })
 
     it('Should fail with a too long password', async function () {
       const fields = {
-        currentPassword: 'my super password',
+        currentPassword: 'password',
         password: 'super'.repeat(61)
       }
 
-      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userAccessToken, fields })
+      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userToken, fields })
     })
 
     it('Should fail without the current password', async function () {
       const fields = {
-        currentPassword: 'my super password',
+        currentPassword: 'password',
         password: 'super'.repeat(61)
       }
 
-      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userAccessToken, fields })
+      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userToken, fields })
     })
 
     it('Should fail with an invalid current password', async function () {
@@ -449,9 +397,9 @@ describe('Test users API validators', function () {
       await makePutBodyRequest({
         url: server.url,
         path: path + 'me',
-        token: userAccessToken,
+        token: userToken,
         fields,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -460,7 +408,7 @@ describe('Test users API validators', function () {
         nsfwPolicy: 'hello'
       }
 
-      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userAccessToken, fields })
+      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userToken, fields })
     })
 
     it('Should fail with an invalid autoPlayVideo attribute', async function () {
@@ -468,7 +416,7 @@ describe('Test users API validators', function () {
         autoPlayVideo: -1
       }
 
-      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userAccessToken, fields })
+      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userToken, fields })
     })
 
     it('Should fail with an invalid autoPlayNextVideo attribute', async function () {
@@ -476,7 +424,7 @@ describe('Test users API validators', function () {
         autoPlayNextVideo: -1
       }
 
-      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userAccessToken, fields })
+      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userToken, fields })
     })
 
     it('Should fail with an invalid videosHistoryEnabled attribute', async function () {
@@ -484,12 +432,12 @@ describe('Test users API validators', function () {
         videosHistoryEnabled: -1
       }
 
-      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userAccessToken, fields })
+      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userToken, fields })
     })
 
     it('Should fail with an non authenticated user', async function () {
       const fields = {
-        currentPassword: 'my super password',
+        currentPassword: 'password',
         password: 'my super password'
       }
 
@@ -498,7 +446,7 @@ describe('Test users API validators', function () {
         path: path + 'me',
         token: 'super token',
         fields,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -507,7 +455,7 @@ describe('Test users API validators', function () {
         description: 'super'.repeat(201)
       }
 
-      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userAccessToken, fields })
+      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userToken, fields })
     })
 
     it('Should fail with an invalid videoLanguages attribute', async function () {
@@ -516,7 +464,7 @@ describe('Test users API validators', function () {
           videoLanguages: 'toto'
         }
 
-        await makePutBodyRequest({ url: server.url, path: path + 'me', token: userAccessToken, fields })
+        await makePutBodyRequest({ url: server.url, path: path + 'me', token: userToken, fields })
       }
 
       {
@@ -529,18 +477,18 @@ describe('Test users API validators', function () {
           videoLanguages: languages
         }
 
-        await makePutBodyRequest({ url: server.url, path: path + 'me', token: userAccessToken, fields })
+        await makePutBodyRequest({ url: server.url, path: path + 'me', token: userToken, fields })
       }
     })
 
     it('Should fail with an invalid theme', async function () {
       const fields = { theme: 'invalid' }
-      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userAccessToken, fields })
+      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userToken, fields })
     })
 
     it('Should fail with an unknown theme', async function () {
       const fields = { theme: 'peertube-theme-unknown' }
-      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userAccessToken, fields })
+      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userToken, fields })
     })
 
     it('Should fail with an invalid noInstanceConfigWarningModal attribute', async function () {
@@ -548,7 +496,7 @@ describe('Test users API validators', function () {
         noInstanceConfigWarningModal: -1
       }
 
-      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userAccessToken, fields })
+      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userToken, fields })
     })
 
     it('Should fail with an invalid noWelcomeModal attribute', async function () {
@@ -556,12 +504,12 @@ describe('Test users API validators', function () {
         noWelcomeModal: -1
       }
 
-      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userAccessToken, fields })
+      await makePutBodyRequest({ url: server.url, path: path + 'me', token: userToken, fields })
     })
 
     it('Should succeed to change password with the correct params', async function () {
       const fields = {
-        currentPassword: 'my super password',
+        currentPassword: 'password',
         password: 'my super password',
         nsfwPolicy: 'blur',
         autoPlayVideo: false,
@@ -574,9 +522,9 @@ describe('Test users API validators', function () {
       await makePutBodyRequest({
         url: server.url,
         path: path + 'me',
-        token: userAccessToken,
+        token: userToken,
         fields,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
 
@@ -589,9 +537,9 @@ describe('Test users API validators', function () {
       await makePutBodyRequest({
         url: server.url,
         path: path + 'me',
-        token: userAccessToken,
+        token: userToken,
         fields,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
   })
@@ -623,7 +571,7 @@ describe('Test users API validators', function () {
         path: path + '/me/avatar/pick',
         fields,
         attaches,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -638,7 +586,7 @@ describe('Test users API validators', function () {
         token: server.accessToken,
         fields,
         attaches,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
   })
@@ -646,28 +594,28 @@ describe('Test users API validators', function () {
   describe('When managing my scoped tokens', function () {
 
     it('Should fail to get my scoped tokens with an non authenticated user', async function () {
-      await getUserScopedTokens(server.url, null, HttpStatusCode.UNAUTHORIZED_401)
+      await server.users.getMyScopedTokens({ token: null, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail to get my scoped tokens with a bad token', async function () {
-      await getUserScopedTokens(server.url, 'bad', HttpStatusCode.UNAUTHORIZED_401)
+      await server.users.getMyScopedTokens({ token: 'bad', expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
 
     })
 
     it('Should succeed to get my scoped tokens', async function () {
-      await getUserScopedTokens(server.url, server.accessToken)
+      await server.users.getMyScopedTokens()
     })
 
     it('Should fail to renew my scoped tokens with an non authenticated user', async function () {
-      await renewUserScopedTokens(server.url, null, HttpStatusCode.UNAUTHORIZED_401)
+      await server.users.renewMyScopedTokens({ token: null, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail to renew my scoped tokens with a bad token', async function () {
-      await renewUserScopedTokens(server.url, 'bad', HttpStatusCode.UNAUTHORIZED_401)
+      await server.users.renewMyScopedTokens({ token: 'bad', expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should succeed to renew my scoped tokens', async function () {
-      await renewUserScopedTokens(server.url, server.accessToken)
+      await server.users.renewMyScopedTokens()
     })
   })
 
@@ -678,16 +626,16 @@ describe('Test users API validators', function () {
         url: server.url,
         path: path + userId,
         token: 'super token',
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
     it('Should fail with a non admin user', async function () {
-      await makeGetRequest({ url: server.url, path, token: userAccessToken, statusCodeExpected: HttpStatusCode.FORBIDDEN_403 })
+      await makeGetRequest({ url: server.url, path, token: userToken, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
     })
 
     it('Should succeed with the correct params', async function () {
-      await makeGetRequest({ url: server.url, path: path + userId, token: server.accessToken, statusCodeExpected: HttpStatusCode.OK_200 })
+      await makeGetRequest({ url: server.url, path: path + userId, token: server.accessToken, expectedStatus: HttpStatusCode.OK_200 })
     })
   })
 
@@ -727,7 +675,7 @@ describe('Test users API validators', function () {
 
     it('Should fail with a too small password', async function () {
       const fields = {
-        currentPassword: 'my super password',
+        currentPassword: 'password',
         password: 'bla'
       }
 
@@ -736,7 +684,7 @@ describe('Test users API validators', function () {
 
     it('Should fail with a too long password', async function () {
       const fields = {
-        currentPassword: 'my super password',
+        currentPassword: 'password',
         password: 'super'.repeat(61)
       }
 
@@ -753,7 +701,7 @@ describe('Test users API validators', function () {
         path: path + userId,
         token: 'super token',
         fields,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -779,9 +727,9 @@ describe('Test users API validators', function () {
       await makePutBodyRequest({
         url: server.url,
         path: path + moderatorId,
-        token: moderatorAccessToken,
+        token: moderatorToken,
         fields,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
 
@@ -793,9 +741,9 @@ describe('Test users API validators', function () {
       await makePutBodyRequest({
         url: server.url,
         path: path + userId,
-        token: moderatorAccessToken,
+        token: moderatorToken,
         fields,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
 
@@ -812,38 +760,44 @@ describe('Test users API validators', function () {
         path: path + userId,
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
   })
 
   describe('When getting my information', function () {
     it('Should fail with a non authenticated user', async function () {
-      await getMyUserInformation(server.url, 'fake_token', HttpStatusCode.UNAUTHORIZED_401)
+      await server.users.getMyInfo({ token: 'fake_token', expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should success with the correct parameters', async function () {
-      await getMyUserInformation(server.url, userAccessToken)
+      await server.users.getMyInfo({ token: userToken })
     })
   })
 
   describe('When getting my video rating', function () {
+    let command: UsersCommand
+
+    before(function () {
+      command = server.users
+    })
+
     it('Should fail with a non authenticated user', async function () {
-      await getMyUserVideoRating(server.url, 'fake_token', video.id, HttpStatusCode.UNAUTHORIZED_401)
+      await command.getMyRating({ token: 'fake_token', videoId: video.id, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail with an incorrect video uuid', async function () {
-      await getMyUserVideoRating(server.url, server.accessToken, 'blabla', HttpStatusCode.BAD_REQUEST_400)
+      await command.getMyRating({ videoId: 'blabla', expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
     })
 
     it('Should fail with an unknown video', async function () {
-      await getMyUserVideoRating(server.url, server.accessToken, '4da6fde3-88f7-4d16-b119-108df5630b06', HttpStatusCode.NOT_FOUND_404)
+      await command.getMyRating({ videoId: '4da6fde3-88f7-4d16-b119-108df5630b06', expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
 
     it('Should succeed with the correct parameters', async function () {
-      await getMyUserVideoRating(server.url, server.accessToken, video.id)
-      await getMyUserVideoRating(server.url, server.accessToken, video.uuid)
-      await getMyUserVideoRating(server.url, server.accessToken, video.shortUUID)
+      await command.getMyRating({ videoId: video.id })
+      await command.getMyRating({ videoId: video.uuid })
+      await command.getMyRating({ videoId: video.shortUUID })
     })
   })
 
@@ -851,80 +805,93 @@ describe('Test users API validators', function () {
     const path = '/api/v1/accounts/user1/ratings'
 
     it('Should fail with a bad start pagination', async function () {
-      await checkBadStartPagination(server.url, path, userAccessToken)
+      await checkBadStartPagination(server.url, path, userToken)
     })
 
     it('Should fail with a bad count pagination', async function () {
-      await checkBadCountPagination(server.url, path, userAccessToken)
+      await checkBadCountPagination(server.url, path, userToken)
     })
 
     it('Should fail with an incorrect sort', async function () {
-      await checkBadSortPagination(server.url, path, userAccessToken)
+      await checkBadSortPagination(server.url, path, userToken)
     })
 
     it('Should fail with a unauthenticated user', async function () {
-      await makeGetRequest({ url: server.url, path, statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401 })
+      await makeGetRequest({ url: server.url, path, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail with a another user', async function () {
-      await makeGetRequest({ url: server.url, path, token: server.accessToken, statusCodeExpected: HttpStatusCode.FORBIDDEN_403 })
+      await makeGetRequest({ url: server.url, path, token: server.accessToken, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
     })
 
     it('Should fail with a bad type', async function () {
       await makeGetRequest({
         url: server.url,
         path,
-        token: userAccessToken,
+        token: userToken,
         query: { rating: 'toto ' },
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
     it('Should succeed with the correct params', async function () {
-      await makeGetRequest({ url: server.url, path, token: userAccessToken, statusCodeExpected: HttpStatusCode.OK_200 })
+      await makeGetRequest({ url: server.url, path, token: userToken, expectedStatus: HttpStatusCode.OK_200 })
     })
   })
 
   describe('When blocking/unblocking/removing user', function () {
+
     it('Should fail with an incorrect id', async function () {
-      await removeUser(server.url, 'blabla', server.accessToken, HttpStatusCode.BAD_REQUEST_400)
-      await blockUser(server.url, 'blabla', server.accessToken, HttpStatusCode.BAD_REQUEST_400)
-      await unblockUser(server.url, 'blabla', server.accessToken, HttpStatusCode.BAD_REQUEST_400)
+      const options = { userId: 'blabla' as any, expectedStatus: HttpStatusCode.BAD_REQUEST_400 }
+
+      await server.users.remove(options)
+      await server.users.banUser({ userId: 'blabla' as any, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
+      await server.users.unbanUser({ userId: 'blabla' as any, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
     })
 
     it('Should fail with the root user', async function () {
-      await removeUser(server.url, rootId, server.accessToken, HttpStatusCode.BAD_REQUEST_400)
-      await blockUser(server.url, rootId, server.accessToken, HttpStatusCode.BAD_REQUEST_400)
-      await unblockUser(server.url, rootId, server.accessToken, HttpStatusCode.BAD_REQUEST_400)
+      const options = { userId: rootId, expectedStatus: HttpStatusCode.BAD_REQUEST_400 }
+
+      await server.users.remove(options)
+      await server.users.banUser(options)
+      await server.users.unbanUser(options)
     })
 
     it('Should return 404 with a non existing id', async function () {
-      await removeUser(server.url, 4545454, server.accessToken, HttpStatusCode.NOT_FOUND_404)
-      await blockUser(server.url, 4545454, server.accessToken, HttpStatusCode.NOT_FOUND_404)
-      await unblockUser(server.url, 4545454, server.accessToken, HttpStatusCode.NOT_FOUND_404)
+      const options = { userId: 4545454, expectedStatus: HttpStatusCode.NOT_FOUND_404 }
+
+      await server.users.remove(options)
+      await server.users.banUser(options)
+      await server.users.unbanUser(options)
     })
 
     it('Should fail with a non admin user', async function () {
-      await removeUser(server.url, userId, userAccessToken, HttpStatusCode.FORBIDDEN_403)
-      await blockUser(server.url, userId, userAccessToken, HttpStatusCode.FORBIDDEN_403)
-      await unblockUser(server.url, userId, userAccessToken, HttpStatusCode.FORBIDDEN_403)
+      const options = { userId, token: userToken, expectedStatus: HttpStatusCode.FORBIDDEN_403 }
+
+      await server.users.remove(options)
+      await server.users.banUser(options)
+      await server.users.unbanUser(options)
     })
 
     it('Should fail on a moderator with a moderator', async function () {
-      await removeUser(server.url, moderatorId, moderatorAccessToken, HttpStatusCode.FORBIDDEN_403)
-      await blockUser(server.url, moderatorId, moderatorAccessToken, HttpStatusCode.FORBIDDEN_403)
-      await unblockUser(server.url, moderatorId, moderatorAccessToken, HttpStatusCode.FORBIDDEN_403)
+      const options = { userId: moderatorId, token: moderatorToken, expectedStatus: HttpStatusCode.FORBIDDEN_403 }
+
+      await server.users.remove(options)
+      await server.users.banUser(options)
+      await server.users.unbanUser(options)
     })
 
     it('Should succeed on a user with a moderator', async function () {
-      await blockUser(server.url, userId, moderatorAccessToken)
-      await unblockUser(server.url, userId, moderatorAccessToken)
+      const options = { userId, token: moderatorToken }
+
+      await server.users.banUser(options)
+      await server.users.unbanUser(options)
     })
   })
 
   describe('When deleting our account', function () {
     it('Should fail with with the root account', async function () {
-      await deleteMe(server.url, server.accessToken, HttpStatusCode.BAD_REQUEST_400)
+      await server.users.deleteMe({ expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
     })
   })
 
@@ -938,19 +905,19 @@ describe('Test users API validators', function () {
     }
 
     it('Should fail with a too small username', async function () {
-      const fields = immutableAssign(baseCorrectParams, { username: '' })
+      const fields = { ...baseCorrectParams, username: '' }
 
       await makePostBodyRequest({ url: server.url, path: registrationPath, token: server.accessToken, fields })
     })
 
     it('Should fail with a too long username', async function () {
-      const fields = immutableAssign(baseCorrectParams, { username: 'super'.repeat(50) })
+      const fields = { ...baseCorrectParams, username: 'super'.repeat(50) }
 
       await makePostBodyRequest({ url: server.url, path: registrationPath, token: server.accessToken, fields })
     })
 
     it('Should fail with an incorrect username', async function () {
-      const fields = immutableAssign(baseCorrectParams, { username: 'my username' })
+      const fields = { ...baseCorrectParams, username: 'my username' }
 
       await makePostBodyRequest({ url: server.url, path: registrationPath, token: server.accessToken, fields })
     })
@@ -962,108 +929,108 @@ describe('Test users API validators', function () {
     })
 
     it('Should fail with an invalid email', async function () {
-      const fields = immutableAssign(baseCorrectParams, { email: 'test_example.com' })
+      const fields = { ...baseCorrectParams, email: 'test_example.com' }
 
       await makePostBodyRequest({ url: server.url, path: registrationPath, token: server.accessToken, fields })
     })
 
     it('Should fail with a too small password', async function () {
-      const fields = immutableAssign(baseCorrectParams, { password: 'bla' })
+      const fields = { ...baseCorrectParams, password: 'bla' }
 
       await makePostBodyRequest({ url: server.url, path: registrationPath, token: server.accessToken, fields })
     })
 
     it('Should fail with a too long password', async function () {
-      const fields = immutableAssign(baseCorrectParams, { password: 'super'.repeat(61) })
+      const fields = { ...baseCorrectParams, password: 'super'.repeat(61) }
 
       await makePostBodyRequest({ url: server.url, path: registrationPath, token: server.accessToken, fields })
     })
 
     it('Should fail if we register a user with the same username', async function () {
-      const fields = immutableAssign(baseCorrectParams, { username: 'root' })
+      const fields = { ...baseCorrectParams, username: 'root' }
 
       await makePostBodyRequest({
         url: server.url,
         path: registrationPath,
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.CONFLICT_409
+        expectedStatus: HttpStatusCode.CONFLICT_409
       })
     })
 
     it('Should fail with a "peertube" username', async function () {
-      const fields = immutableAssign(baseCorrectParams, { username: 'peertube' })
+      const fields = { ...baseCorrectParams, username: 'peertube' }
 
       await makePostBodyRequest({
         url: server.url,
         path: registrationPath,
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.CONFLICT_409
+        expectedStatus: HttpStatusCode.CONFLICT_409
       })
     })
 
     it('Should fail if we register a user with the same email', async function () {
-      const fields = immutableAssign(baseCorrectParams, { email: 'admin' + server.internalServerNumber + '@example.com' })
+      const fields = { ...baseCorrectParams, email: 'admin' + server.internalServerNumber + '@example.com' }
 
       await makePostBodyRequest({
         url: server.url,
         path: registrationPath,
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.CONFLICT_409
+        expectedStatus: HttpStatusCode.CONFLICT_409
       })
     })
 
     it('Should fail with a bad display name', async function () {
-      const fields = immutableAssign(baseCorrectParams, { displayName: 'a'.repeat(150) })
+      const fields = { ...baseCorrectParams, displayName: 'a'.repeat(150) }
 
       await makePostBodyRequest({ url: server.url, path: registrationPath, token: server.accessToken, fields })
     })
 
     it('Should fail with a bad channel name', async function () {
-      const fields = immutableAssign(baseCorrectParams, { channel: { name: '[]azf', displayName: 'toto' } })
+      const fields = { ...baseCorrectParams, channel: { name: '[]azf', displayName: 'toto' } }
 
       await makePostBodyRequest({ url: server.url, path: registrationPath, token: server.accessToken, fields })
     })
 
     it('Should fail with a bad channel display name', async function () {
-      const fields = immutableAssign(baseCorrectParams, { channel: { name: 'toto', displayName: '' } })
+      const fields = { ...baseCorrectParams, channel: { name: 'toto', displayName: '' } }
 
       await makePostBodyRequest({ url: server.url, path: registrationPath, token: server.accessToken, fields })
     })
 
     it('Should fail with a channel name that is the same as username', async function () {
       const source = { username: 'super_user', channel: { name: 'super_user', displayName: 'display name' } }
-      const fields = immutableAssign(baseCorrectParams, source)
+      const fields = { ...baseCorrectParams, ...source }
 
       await makePostBodyRequest({ url: server.url, path: registrationPath, token: server.accessToken, fields })
     })
 
     it('Should fail with an existing channel', async function () {
-      const videoChannelAttributesArg = { name: 'existing_channel', displayName: 'hello', description: 'super description' }
-      await addVideoChannel(server.url, server.accessToken, videoChannelAttributesArg)
+      const attributes = { name: 'existing_channel', displayName: 'hello', description: 'super description' }
+      await server.channels.create({ attributes })
 
-      const fields = immutableAssign(baseCorrectParams, { channel: { name: 'existing_channel', displayName: 'toto' } })
+      const fields = { ...baseCorrectParams, channel: { name: 'existing_channel', displayName: 'toto' } }
 
       await makePostBodyRequest({
         url: server.url,
         path: registrationPath,
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.CONFLICT_409
+        expectedStatus: HttpStatusCode.CONFLICT_409
       })
     })
 
     it('Should succeed with the correct params', async function () {
-      const fields = immutableAssign(baseCorrectParams, { channel: { name: 'super_channel', displayName: 'toto' } })
+      const fields = { ...baseCorrectParams, channel: { name: 'super_channel', displayName: 'toto' } }
 
       await makePostBodyRequest({
         url: server.url,
         path: registrationPath,
         token: server.accessToken,
         fields: fields,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
 
@@ -1079,14 +1046,14 @@ describe('Test users API validators', function () {
         path: registrationPath,
         token: serverWithRegistrationDisabled.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
   })
 
   describe('When registering multiple users on a server with users limit', function () {
     it('Should fail when after 3 registrations', async function () {
-      await registerUser(server.url, 'user42', 'super password', HttpStatusCode.FORBIDDEN_403)
+      await server.users.register({ username: 'user42', expectedStatus: HttpStatusCode.FORBIDDEN_403 })
     })
   })
 
@@ -1113,7 +1080,7 @@ describe('Test users API validators', function () {
         path,
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
   })
@@ -1141,7 +1108,7 @@ describe('Test users API validators', function () {
         path,
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
   })
diff --git a/server/tests/api/check-params/video-blacklist.ts b/server/tests/api/check-params/video-blacklist.ts
index ce7f5fa17..d28c6a952 100644
--- a/server/tests/api/check-params/video-blacklist.ts
+++ b/server/tests/api/check-params/video-blacklist.ts
@@ -1,46 +1,37 @@
 /* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
 
 import 'mocha'
-
+import { expect } from 'chai'
 import {
+  BlacklistCommand,
+  checkBadCountPagination,
+  checkBadSortPagination,
+  checkBadStartPagination,
   cleanupTests,
-  createUser,
+  createMultipleServers,
   doubleFollow,
-  flushAndRunMultipleServers,
-  getBlacklistedVideosList,
-  getVideo,
-  getVideoWithToken,
   makePostBodyRequest,
   makePutBodyRequest,
-  removeVideoFromBlacklist,
-  ServerInfo,
+  PeerTubeServer,
   setAccessTokensToServers,
-  uploadVideo,
-  userLogin,
   waitJobs
-} from '../../../../shared/extra-utils'
-import {
-  checkBadCountPagination,
-  checkBadSortPagination,
-  checkBadStartPagination
-} from '../../../../shared/extra-utils/requests/check-api-params'
-import { VideoBlacklistType, VideoDetails } from '../../../../shared/models/videos'
-import { expect } from 'chai'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
+} from '@shared/extra-utils'
+import { HttpStatusCode, VideoBlacklistType } from '@shared/models'
 
 describe('Test video blacklist API validators', function () {
-  let servers: ServerInfo[]
-  let notBlacklistedVideoId: number
+  let servers: PeerTubeServer[]
+  let notBlacklistedVideoId: string
   let remoteVideoUUID: string
   let userAccessToken1 = ''
   let userAccessToken2 = ''
+  let command: BlacklistCommand
 
   // ---------------------------------------------------------------
 
   before(async function () {
     this.timeout(120000)
 
-    servers = await flushAndRunMultipleServers(2)
+    servers = await createMultipleServers(2)
 
     await setAccessTokensToServers(servers)
     await doubleFollow(servers[0], servers[1])
@@ -48,40 +39,41 @@ describe('Test video blacklist API validators', function () {
     {
       const username = 'user1'
       const password = 'my super password'
-      await createUser({ url: servers[0].url, accessToken: servers[0].accessToken, username: username, password: password })
-      userAccessToken1 = await userLogin(servers[0], { username, password })
+      await servers[0].users.create({ username: username, password: password })
+      userAccessToken1 = await servers[0].login.getAccessToken({ username, password })
     }
 
     {
       const username = 'user2'
       const password = 'my super password'
-      await createUser({ url: servers[0].url, accessToken: servers[0].accessToken, username: username, password: password })
-      userAccessToken2 = await userLogin(servers[0], { username, password })
+      await servers[0].users.create({ username: username, password: password })
+      userAccessToken2 = await servers[0].login.getAccessToken({ username, password })
     }
 
     {
-      const res = await uploadVideo(servers[0].url, userAccessToken1, {})
-      servers[0].video = res.body.video
+      servers[0].store.video = await servers[0].videos.upload({ token: userAccessToken1 })
     }
 
     {
-      const res = await uploadVideo(servers[0].url, servers[0].accessToken, {})
-      notBlacklistedVideoId = res.body.video.uuid
+      const { uuid } = await servers[0].videos.upload()
+      notBlacklistedVideoId = uuid
     }
 
     {
-      const res = await uploadVideo(servers[1].url, servers[1].accessToken, {})
-      remoteVideoUUID = res.body.video.uuid
+      const { uuid } = await servers[1].videos.upload()
+      remoteVideoUUID = uuid
     }
 
     await waitJobs(servers)
+
+    command = servers[0].blacklist
   })
 
   describe('When adding a video in blacklist', function () {
     const basePath = '/api/v1/videos/'
 
     it('Should fail with nothing', async function () {
-      const path = basePath + servers[0].video + '/blacklist'
+      const path = basePath + servers[0].store.video + '/blacklist'
       const fields = {}
       await makePostBodyRequest({ url: servers[0].url, path, token: servers[0].accessToken, fields })
     })
@@ -93,25 +85,25 @@ describe('Test video blacklist API validators', function () {
     })
 
     it('Should fail with a non authenticated user', async function () {
-      const path = basePath + servers[0].video + '/blacklist'
+      const path = basePath + servers[0].store.video + '/blacklist'
       const fields = {}
-      await makePostBodyRequest({ url: servers[0].url, path, token: 'hello', fields, statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401 })
+      await makePostBodyRequest({ url: servers[0].url, path, token: 'hello', fields, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail with a non admin user', async function () {
-      const path = basePath + servers[0].video + '/blacklist'
+      const path = basePath + servers[0].store.video + '/blacklist'
       const fields = {}
       await makePostBodyRequest({
         url: servers[0].url,
         path,
         token: userAccessToken2,
         fields,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
 
     it('Should fail with an invalid reason', async function () {
-      const path = basePath + servers[0].video.uuid + '/blacklist'
+      const path = basePath + servers[0].store.video.uuid + '/blacklist'
       const fields = { reason: 'a'.repeat(305) }
 
       await makePostBodyRequest({ url: servers[0].url, path, token: servers[0].accessToken, fields })
@@ -126,12 +118,12 @@ describe('Test video blacklist API validators', function () {
         path,
         token: servers[0].accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.CONFLICT_409
+        expectedStatus: HttpStatusCode.CONFLICT_409
       })
     })
 
     it('Should succeed with the correct params', async function () {
-      const path = basePath + servers[0].video.uuid + '/blacklist'
+      const path = basePath + servers[0].store.video.uuid + '/blacklist'
       const fields = {}
 
       await makePostBodyRequest({
@@ -139,7 +131,7 @@ describe('Test video blacklist API validators', function () {
         path,
         token: servers[0].accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
   })
@@ -161,37 +153,37 @@ describe('Test video blacklist API validators', function () {
         path,
         token: servers[0].accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+        expectedStatus: HttpStatusCode.NOT_FOUND_404
       })
     })
 
     it('Should fail with a non authenticated user', async function () {
-      const path = basePath + servers[0].video + '/blacklist'
+      const path = basePath + servers[0].store.video + '/blacklist'
       const fields = {}
-      await makePutBodyRequest({ url: servers[0].url, path, token: 'hello', fields, statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401 })
+      await makePutBodyRequest({ url: servers[0].url, path, token: 'hello', fields, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail with a non admin user', async function () {
-      const path = basePath + servers[0].video + '/blacklist'
+      const path = basePath + servers[0].store.video + '/blacklist'
       const fields = {}
       await makePutBodyRequest({
         url: servers[0].url,
         path,
         token: userAccessToken2,
         fields,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
 
     it('Should fail with an invalid reason', async function () {
-      const path = basePath + servers[0].video.uuid + '/blacklist'
+      const path = basePath + servers[0].store.video.uuid + '/blacklist'
       const fields = { reason: 'a'.repeat(305) }
 
       await makePutBodyRequest({ url: servers[0].url, path, token: servers[0].accessToken, fields })
     })
 
     it('Should succeed with the correct params', async function () {
-      const path = basePath + servers[0].video.shortUUID + '/blacklist'
+      const path = basePath + servers[0].store.video.shortUUID + '/blacklist'
       const fields = { reason: 'hello' }
 
       await makePutBodyRequest({
@@ -199,7 +191,7 @@ describe('Test video blacklist API validators', function () {
         path,
         token: servers[0].accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
   })
@@ -207,52 +199,53 @@ describe('Test video blacklist API validators', function () {
   describe('When getting blacklisted video', function () {
 
     it('Should fail with a non authenticated user', async function () {
-      await getVideo(servers[0].url, servers[0].video.uuid, HttpStatusCode.UNAUTHORIZED_401)
+      await servers[0].videos.get({ id: servers[0].store.video.uuid, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail with another user', async function () {
-      await getVideoWithToken(servers[0].url, userAccessToken2, servers[0].video.uuid, HttpStatusCode.FORBIDDEN_403)
+      await servers[0].videos.getWithToken({
+        token: userAccessToken2,
+        id: servers[0].store.video.uuid,
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
+      })
     })
 
     it('Should succeed with the owner authenticated user', async function () {
-      const res = await getVideoWithToken(servers[0].url, userAccessToken1, servers[0].video.uuid, HttpStatusCode.OK_200)
-      const video: VideoDetails = res.body
-
+      const video = await servers[0].videos.getWithToken({ token: userAccessToken1, id: servers[0].store.video.uuid })
       expect(video.blacklisted).to.be.true
     })
 
     it('Should succeed with an admin', async function () {
-      const video = servers[0].video
+      const video = servers[0].store.video
 
       for (const id of [ video.id, video.uuid, video.shortUUID ]) {
-        const res = await getVideoWithToken(servers[0].url, servers[0].accessToken, id, HttpStatusCode.OK_200)
-        const video: VideoDetails = res.body
-
+        const video = await servers[0].videos.getWithToken({ id, expectedStatus: HttpStatusCode.OK_200 })
         expect(video.blacklisted).to.be.true
       }
     })
   })
 
   describe('When removing a video in blacklist', function () {
+
     it('Should fail with a non authenticated user', async function () {
-      await removeVideoFromBlacklist(servers[0].url, 'fake token', servers[0].video.uuid, HttpStatusCode.UNAUTHORIZED_401)
+      await command.remove({ token: 'fake token', videoId: servers[0].store.video.uuid, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail with a non admin user', async function () {
-      await removeVideoFromBlacklist(servers[0].url, userAccessToken2, servers[0].video.uuid, HttpStatusCode.FORBIDDEN_403)
+      await command.remove({ token: userAccessToken2, videoId: servers[0].store.video.uuid, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
     })
 
     it('Should fail with an incorrect id', async function () {
-      await removeVideoFromBlacklist(servers[0].url, servers[0].accessToken, 'hello', HttpStatusCode.BAD_REQUEST_400)
+      await command.remove({ videoId: 'hello', expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
     })
 
     it('Should fail with a not blacklisted video', async function () {
       // The video was not added to the blacklist so it should fail
-      await removeVideoFromBlacklist(servers[0].url, servers[0].accessToken, notBlacklistedVideoId, HttpStatusCode.NOT_FOUND_404)
+      await command.remove({ videoId: notBlacklistedVideoId, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
 
     it('Should succeed with the correct params', async function () {
-      await removeVideoFromBlacklist(servers[0].url, servers[0].accessToken, servers[0].video.uuid, HttpStatusCode.NO_CONTENT_204)
+      await command.remove({ videoId: servers[0].store.video.uuid, expectedStatus: HttpStatusCode.NO_CONTENT_204 })
     })
   })
 
@@ -260,11 +253,11 @@ describe('Test video blacklist API validators', function () {
     const basePath = '/api/v1/videos/blacklist/'
 
     it('Should fail with a non authenticated user', async function () {
-      await getBlacklistedVideosList({ url: servers[0].url, token: 'fake token', specialStatus: HttpStatusCode.UNAUTHORIZED_401 })
+      await servers[0].blacklist.list({ token: 'fake token', expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail with a non admin user', async function () {
-      await getBlacklistedVideosList({ url: servers[0].url, token: userAccessToken2, specialStatus: HttpStatusCode.FORBIDDEN_403 })
+      await servers[0].blacklist.list({ token: userAccessToken2, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
     })
 
     it('Should fail with a bad start pagination', async function () {
@@ -280,16 +273,11 @@ describe('Test video blacklist API validators', function () {
     })
 
     it('Should fail with an invalid type', async function () {
-      await getBlacklistedVideosList({
-        url: servers[0].url,
-        token: servers[0].accessToken,
-        type: 0,
-        specialStatus: HttpStatusCode.BAD_REQUEST_400
-      })
+      await servers[0].blacklist.list({ type: 0, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
     })
 
     it('Should succeed with the correct parameters', async function () {
-      await getBlacklistedVideosList({ url: servers[0].url, token: servers[0].accessToken, type: VideoBlacklistType.MANUAL })
+      await servers[0].blacklist.list({ type: VideoBlacklistType.MANUAL })
     })
   })
 
diff --git a/server/tests/api/check-params/video-captions.ts b/server/tests/api/check-params/video-captions.ts
index c0595c04d..90f429314 100644
--- a/server/tests/api/check-params/video-captions.ts
+++ b/server/tests/api/check-params/video-captions.ts
@@ -1,27 +1,22 @@
 /* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
 
 import 'mocha'
-import { VideoCreateResult } from '@shared/models'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
 import {
   buildAbsoluteFixturePath,
   cleanupTests,
-  createUser,
-  flushAndRunServer,
+  createSingleServer,
   makeDeleteRequest,
   makeGetRequest,
   makeUploadRequest,
-  ServerInfo,
-  setAccessTokensToServers,
-  uploadVideo,
-  userLogin
-} from '../../../../shared/extra-utils'
-import { createVideoCaption } from '../../../../shared/extra-utils/videos/video-captions'
+  PeerTubeServer,
+  setAccessTokensToServers
+} from '@shared/extra-utils'
+import { HttpStatusCode, VideoCreateResult } from '@shared/models'
 
 describe('Test video captions API validator', function () {
   const path = '/api/v1/videos/'
 
-  let server: ServerInfo
+  let server: PeerTubeServer
   let userAccessToken: string
   let video: VideoCreateResult
 
@@ -30,22 +25,19 @@ describe('Test video captions API validator', function () {
   before(async function () {
     this.timeout(30000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
 
     await setAccessTokensToServers([ server ])
 
-    {
-      const res = await uploadVideo(server.url, server.accessToken, {})
-      video = res.body.video
-    }
+    video = await server.videos.upload()
 
     {
       const user = {
         username: 'user1',
         password: 'my super password'
       }
-      await createUser({ url: server.url, accessToken: server.accessToken, username: user.username, password: user.password })
-      userAccessToken = await userLogin(server, user)
+      await server.users.create({ username: user.username, password: user.password })
+      userAccessToken = await server.login.getAccessToken(user)
     }
   })
 
@@ -74,7 +66,7 @@ describe('Test video captions API validator', function () {
         token: server.accessToken,
         fields,
         attaches,
-        statusCodeExpected: 404
+        expectedStatus: 404
       })
     })
 
@@ -110,7 +102,7 @@ describe('Test video captions API validator', function () {
         path: captionPath,
         fields,
         attaches,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -123,7 +115,7 @@ describe('Test video captions API validator', function () {
         token: 'blabla',
         fields,
         attaches,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -141,7 +133,7 @@ describe('Test video captions API validator', function () {
     //     token: server.accessToken,
     //     fields,
     //     attaches,
-    //     statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+    //     expectedStatus: HttpStatusCode.BAD_REQUEST_400
     //   })
     // })
 
@@ -154,14 +146,12 @@ describe('Test video captions API validator', function () {
     //     videoId: video.uuid,
     //     fixture: 'subtitle-bad.txt',
     //     mimeType: 'application/octet-stream',
-    //     statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+    //     expectedStatus: HttpStatusCode.BAD_REQUEST_400
     //   })
     // })
 
     it('Should succeed with a valid captionfile extension and octet-stream mime type', async function () {
-      await createVideoCaption({
-        url: server.url,
-        accessToken: server.accessToken,
+      await server.captions.add({
         language: 'zh',
         videoId: video.uuid,
         fixture: 'subtitle-good.srt',
@@ -183,7 +173,7 @@ describe('Test video captions API validator', function () {
     //     token: server.accessToken,
     //     fields,
     //     attaches,
-    //     statusCodeExpected: HttpStatusCode.INTERNAL_SERVER_ERROR_500
+    //     expectedStatus: HttpStatusCode.INTERNAL_SERVER_ERROR_500
     //   })
     // })
 
@@ -196,7 +186,7 @@ describe('Test video captions API validator', function () {
         token: server.accessToken,
         fields,
         attaches,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
   })
@@ -210,12 +200,12 @@ describe('Test video captions API validator', function () {
       await makeGetRequest({
         url: server.url,
         path: path + '4da6fde3-88f7-4d16-b119-108df5630b06/captions',
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+        expectedStatus: HttpStatusCode.NOT_FOUND_404
       })
     })
 
     it('Should success with the correct parameters', async function () {
-      await makeGetRequest({ url: server.url, path: path + video.shortUUID + '/captions', statusCodeExpected: HttpStatusCode.OK_200 })
+      await makeGetRequest({ url: server.url, path: path + video.shortUUID + '/captions', expectedStatus: HttpStatusCode.OK_200 })
     })
   })
 
@@ -233,7 +223,7 @@ describe('Test video captions API validator', function () {
         url: server.url,
         path: path + '4da6fde3-88f7-4d16-b119-108df5630b06/captions/fr',
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+        expectedStatus: HttpStatusCode.NOT_FOUND_404
       })
     })
 
@@ -257,12 +247,12 @@ describe('Test video captions API validator', function () {
 
     it('Should fail without access token', async function () {
       const captionPath = path + video.shortUUID + '/captions/fr'
-      await makeDeleteRequest({ url: server.url, path: captionPath, statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401 })
+      await makeDeleteRequest({ url: server.url, path: captionPath, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail with a bad access token', async function () {
       const captionPath = path + video.shortUUID + '/captions/fr'
-      await makeDeleteRequest({ url: server.url, path: captionPath, token: 'coucou', statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401 })
+      await makeDeleteRequest({ url: server.url, path: captionPath, token: 'coucou', expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail with another user', async function () {
@@ -271,7 +261,7 @@ describe('Test video captions API validator', function () {
         url: server.url,
         path: captionPath,
         token: userAccessToken,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
 
@@ -281,7 +271,7 @@ describe('Test video captions API validator', function () {
         url: server.url,
         path: captionPath,
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
   })
diff --git a/server/tests/api/check-params/video-channels.ts b/server/tests/api/check-params/video-channels.ts
index 5c02afd31..2e63916d4 100644
--- a/server/tests/api/check-params/video-channels.ts
+++ b/server/tests/api/check-params/video-channels.ts
@@ -3,43 +3,37 @@
 import 'mocha'
 import * as chai from 'chai'
 import { omit } from 'lodash'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
 import {
   buildAbsoluteFixturePath,
+  ChannelsCommand,
+  checkBadCountPagination,
+  checkBadSortPagination,
+  checkBadStartPagination,
   cleanupTests,
-  createUser,
-  deleteVideoChannel,
-  flushAndRunServer,
-  getAccountVideoChannelsList,
-  immutableAssign,
+  createSingleServer,
   makeGetRequest,
   makePostBodyRequest,
   makePutBodyRequest,
   makeUploadRequest,
-  ServerInfo,
-  setAccessTokensToServers,
-  userLogin
-} from '../../../../shared/extra-utils'
-import {
-  checkBadCountPagination,
-  checkBadSortPagination,
-  checkBadStartPagination
-} from '../../../../shared/extra-utils/requests/check-api-params'
-import { VideoChannelUpdate } from '../../../../shared/models/videos'
+  PeerTubeServer,
+  setAccessTokensToServers
+} from '@shared/extra-utils'
+import { HttpStatusCode, VideoChannelUpdate } from '@shared/models'
 
 const expect = chai.expect
 
 describe('Test video channels API validator', function () {
   const videoChannelPath = '/api/v1/video-channels'
-  let server: ServerInfo
+  let server: PeerTubeServer
   let accessTokenUser: string
+  let command: ChannelsCommand
 
   // ---------------------------------------------------------------
 
   before(async function () {
     this.timeout(30000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
 
     await setAccessTokensToServers([ server ])
 
@@ -49,9 +43,11 @@ describe('Test video channels API validator', function () {
     }
 
     {
-      await createUser({ url: server.url, accessToken: server.accessToken, username: user.username, password: user.password })
-      accessTokenUser = await userLogin(server, user)
+      await server.users.create({ username: user.username, password: user.password })
+      accessTokenUser = await server.login.getAccessToken(user)
     }
+
+    command = server.channels
   })
 
   describe('When listing a video channels', function () {
@@ -84,14 +80,14 @@ describe('Test video channels API validator', function () {
     })
 
     it('Should fail with a unknown account', async function () {
-      await getAccountVideoChannelsList({ url: server.url, accountName: 'unknown', specialStatus: HttpStatusCode.NOT_FOUND_404 })
+      await server.channels.listByAccount({ accountName: 'unknown', expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
 
     it('Should succeed with the correct parameters', async function () {
       await makeGetRequest({
         url: server.url,
         path: accountChannelPath,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
   })
@@ -110,7 +106,7 @@ describe('Test video channels API validator', function () {
         path: videoChannelPath,
         token: 'none',
         fields: baseCorrectParams,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -125,7 +121,7 @@ describe('Test video channels API validator', function () {
     })
 
     it('Should fail with a bad name', async function () {
-      const fields = immutableAssign(baseCorrectParams, { name: 'super name' })
+      const fields = { ...baseCorrectParams, name: 'super name' }
       await makePostBodyRequest({ url: server.url, path: videoChannelPath, token: server.accessToken, fields })
     })
 
@@ -135,17 +131,17 @@ describe('Test video channels API validator', function () {
     })
 
     it('Should fail with a long name', async function () {
-      const fields = immutableAssign(baseCorrectParams, { displayName: 'super'.repeat(25) })
+      const fields = { ...baseCorrectParams, displayName: 'super'.repeat(25) }
       await makePostBodyRequest({ url: server.url, path: videoChannelPath, token: server.accessToken, fields })
     })
 
     it('Should fail with a long description', async function () {
-      const fields = immutableAssign(baseCorrectParams, { description: 'super'.repeat(201) })
+      const fields = { ...baseCorrectParams, description: 'super'.repeat(201) }
       await makePostBodyRequest({ url: server.url, path: videoChannelPath, token: server.accessToken, fields })
     })
 
     it('Should fail with a long support text', async function () {
-      const fields = immutableAssign(baseCorrectParams, { support: 'super'.repeat(201) })
+      const fields = { ...baseCorrectParams, support: 'super'.repeat(201) }
       await makePostBodyRequest({ url: server.url, path: videoChannelPath, token: server.accessToken, fields })
     })
 
@@ -155,7 +151,7 @@ describe('Test video channels API validator', function () {
         path: videoChannelPath,
         token: server.accessToken,
         fields: baseCorrectParams,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
 
@@ -165,7 +161,7 @@ describe('Test video channels API validator', function () {
         path: videoChannelPath,
         token: server.accessToken,
         fields: baseCorrectParams,
-        statusCodeExpected: HttpStatusCode.CONFLICT_409
+        expectedStatus: HttpStatusCode.CONFLICT_409
       })
     })
   })
@@ -189,7 +185,7 @@ describe('Test video channels API validator', function () {
         path,
         token: 'hi',
         fields: baseCorrectParams,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -199,27 +195,27 @@ describe('Test video channels API validator', function () {
         path,
         token: accessTokenUser,
         fields: baseCorrectParams,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
 
     it('Should fail with a long name', async function () {
-      const fields = immutableAssign(baseCorrectParams, { displayName: 'super'.repeat(25) })
+      const fields = { ...baseCorrectParams, displayName: 'super'.repeat(25) }
       await makePutBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with a long description', async function () {
-      const fields = immutableAssign(baseCorrectParams, { description: 'super'.repeat(201) })
+      const fields = { ...baseCorrectParams, description: 'super'.repeat(201) }
       await makePutBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with a long support text', async function () {
-      const fields = immutableAssign(baseCorrectParams, { support: 'super'.repeat(201) })
+      const fields = { ...baseCorrectParams, support: 'super'.repeat(201) }
       await makePutBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with a bad bulkVideosSupportUpdate field', async function () {
-      const fields = immutableAssign(baseCorrectParams, { bulkVideosSupportUpdate: 'super' })
+      const fields = { ...baseCorrectParams, bulkVideosSupportUpdate: 'super' }
       await makePutBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
@@ -229,7 +225,7 @@ describe('Test video channels API validator', function () {
         path,
         token: server.accessToken,
         fields: baseCorrectParams,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
   })
@@ -274,7 +270,7 @@ describe('Test video channels API validator', function () {
           path: `${path}/${type}/pick`,
           fields,
           attaches,
-          statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+          expectedStatus: HttpStatusCode.UNAUTHORIZED_401
         })
       }
     })
@@ -291,7 +287,7 @@ describe('Test video channels API validator', function () {
           token: server.accessToken,
           fields,
           attaches,
-          statusCodeExpected: HttpStatusCode.OK_200
+          expectedStatus: HttpStatusCode.OK_200
         })
       }
     })
@@ -302,7 +298,7 @@ describe('Test video channels API validator', function () {
       const res = await makeGetRequest({
         url: server.url,
         path: videoChannelPath,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
 
       expect(res.body.data).to.be.an('array')
@@ -312,7 +308,7 @@ describe('Test video channels API validator', function () {
       await makeGetRequest({
         url: server.url,
         path: videoChannelPath + '/super_channel2',
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+        expectedStatus: HttpStatusCode.NOT_FOUND_404
       })
     })
 
@@ -320,30 +316,30 @@ describe('Test video channels API validator', function () {
       await makeGetRequest({
         url: server.url,
         path: videoChannelPath + '/super_channel',
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
   })
 
   describe('When deleting a video channel', function () {
     it('Should fail with a non authenticated user', async function () {
-      await deleteVideoChannel(server.url, 'coucou', 'super_channel', HttpStatusCode.UNAUTHORIZED_401)
+      await command.delete({ token: 'coucou', channelName: 'super_channel', expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail with another authenticated user', async function () {
-      await deleteVideoChannel(server.url, accessTokenUser, 'super_channel', HttpStatusCode.FORBIDDEN_403)
+      await command.delete({ token: accessTokenUser, channelName: 'super_channel', expectedStatus: HttpStatusCode.FORBIDDEN_403 })
     })
 
     it('Should fail with an unknown video channel id', async function () {
-      await deleteVideoChannel(server.url, server.accessToken, 'super_channel2', HttpStatusCode.NOT_FOUND_404)
+      await command.delete({ channelName: 'super_channel2', expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
 
     it('Should succeed with the correct parameters', async function () {
-      await deleteVideoChannel(server.url, server.accessToken, 'super_channel')
+      await command.delete({ channelName: 'super_channel' })
     })
 
     it('Should fail to delete the last user video channel', async function () {
-      await deleteVideoChannel(server.url, server.accessToken, 'root_channel', HttpStatusCode.CONFLICT_409)
+      await command.delete({ channelName: 'root_channel', expectedStatus: HttpStatusCode.CONFLICT_409 })
     })
   })
 
diff --git a/server/tests/api/check-params/video-comments.ts b/server/tests/api/check-params/video-comments.ts
index a38420851..2d9ee1e0d 100644
--- a/server/tests/api/check-params/video-comments.ts
+++ b/server/tests/api/check-params/video-comments.ts
@@ -2,33 +2,26 @@
 
 import 'mocha'
 import * as chai from 'chai'
-import { VideoCreateResult } from '@shared/models'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
 import {
+  checkBadCountPagination,
+  checkBadSortPagination,
+  checkBadStartPagination,
   cleanupTests,
-  createUser,
-  flushAndRunServer,
+  createSingleServer,
   makeDeleteRequest,
   makeGetRequest,
   makePostBodyRequest,
-  ServerInfo,
-  setAccessTokensToServers,
-  uploadVideo,
-  userLogin
-} from '../../../../shared/extra-utils'
-import {
-  checkBadCountPagination,
-  checkBadSortPagination,
-  checkBadStartPagination
-} from '../../../../shared/extra-utils/requests/check-api-params'
-import { addVideoCommentThread } from '../../../../shared/extra-utils/videos/video-comments'
+  PeerTubeServer,
+  setAccessTokensToServers
+} from '@shared/extra-utils'
+import { HttpStatusCode, VideoCreateResult } from '@shared/models'
 
 const expect = chai.expect
 
 describe('Test video comments API validator', function () {
   let pathThread: string
   let pathComment: string
-  let server: ServerInfo
+  let server: PeerTubeServer
   let video: VideoCreateResult
   let userAccessToken: string
   let userAccessToken2: string
@@ -39,32 +32,31 @@ describe('Test video comments API validator', function () {
   before(async function () {
     this.timeout(30000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
 
     await setAccessTokensToServers([ server ])
 
     {
-      const res = await uploadVideo(server.url, server.accessToken, {})
-      video = res.body.video
+      video = await server.videos.upload({ attributes: {} })
       pathThread = '/api/v1/videos/' + video.uuid + '/comment-threads'
     }
 
     {
-      const res = await addVideoCommentThread(server.url, server.accessToken, video.uuid, 'coucou')
-      commentId = res.body.comment.id
+      const created = await server.comments.createThread({ videoId: video.uuid, text: 'coucou' })
+      commentId = created.id
       pathComment = '/api/v1/videos/' + video.uuid + '/comments/' + commentId
     }
 
     {
       const user = { username: 'user1', password: 'my super password' }
-      await createUser({ url: server.url, accessToken: server.accessToken, username: user.username, password: user.password })
-      userAccessToken = await userLogin(server, user)
+      await server.users.create({ username: user.username, password: user.password })
+      userAccessToken = await server.login.getAccessToken(user)
     }
 
     {
       const user = { username: 'user2', password: 'my super password' }
-      await createUser({ url: server.url, accessToken: server.accessToken, username: user.username, password: user.password })
-      userAccessToken2 = await userLogin(server, user)
+      await server.users.create({ username: user.username, password: user.password })
+      userAccessToken2 = await server.login.getAccessToken(user)
     }
   })
 
@@ -85,7 +77,7 @@ describe('Test video comments API validator', function () {
       await makeGetRequest({
         url: server.url,
         path: '/api/v1/videos/ba708d62-e3d7-45d9-9d73-41b9097cc02d/comment-threads',
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+        expectedStatus: HttpStatusCode.NOT_FOUND_404
       })
     })
   })
@@ -95,7 +87,7 @@ describe('Test video comments API validator', function () {
       await makeGetRequest({
         url: server.url,
         path: '/api/v1/videos/ba708d62-e3d7-45d9-9d73-41b9097cc02d/comment-threads/' + commentId,
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+        expectedStatus: HttpStatusCode.NOT_FOUND_404
       })
     })
 
@@ -103,7 +95,7 @@ describe('Test video comments API validator', function () {
       await makeGetRequest({
         url: server.url,
         path: '/api/v1/videos/' + video.shortUUID + '/comment-threads/156',
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+        expectedStatus: HttpStatusCode.NOT_FOUND_404
       })
     })
 
@@ -111,7 +103,7 @@ describe('Test video comments API validator', function () {
       await makeGetRequest({
         url: server.url,
         path: '/api/v1/videos/' + video.shortUUID + '/comment-threads/' + commentId,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
   })
@@ -127,7 +119,7 @@ describe('Test video comments API validator', function () {
         path: pathThread,
         token: 'none',
         fields,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -160,7 +152,7 @@ describe('Test video comments API validator', function () {
         path,
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+        expectedStatus: HttpStatusCode.NOT_FOUND_404
       })
     })
 
@@ -173,7 +165,7 @@ describe('Test video comments API validator', function () {
         path: pathThread,
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
   })
@@ -188,7 +180,7 @@ describe('Test video comments API validator', function () {
         path: pathComment,
         token: 'none',
         fields,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -221,7 +213,7 @@ describe('Test video comments API validator', function () {
         path,
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+        expectedStatus: HttpStatusCode.NOT_FOUND_404
       })
     })
 
@@ -235,7 +227,7 @@ describe('Test video comments API validator', function () {
         path,
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+        expectedStatus: HttpStatusCode.NOT_FOUND_404
       })
     })
 
@@ -248,14 +240,14 @@ describe('Test video comments API validator', function () {
         path: pathComment,
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
   })
 
   describe('When removing video comments', function () {
     it('Should fail with a non authenticated user', async function () {
-      await makeDeleteRequest({ url: server.url, path: pathComment, token: 'none', statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401 })
+      await makeDeleteRequest({ url: server.url, path: pathComment, token: 'none', expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail with another user', async function () {
@@ -263,32 +255,32 @@ describe('Test video comments API validator', function () {
         url: server.url,
         path: pathComment,
         token: userAccessToken,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
 
     it('Should fail with an incorrect video', async function () {
       const path = '/api/v1/videos/ba708d62-e3d7-45d9-9d73-41b9097cc02d/comments/' + commentId
-      await makeDeleteRequest({ url: server.url, path, token: server.accessToken, statusCodeExpected: HttpStatusCode.NOT_FOUND_404 })
+      await makeDeleteRequest({ url: server.url, path, token: server.accessToken, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
 
     it('Should fail with an incorrect comment', async function () {
       const path = '/api/v1/videos/' + video.uuid + '/comments/124'
-      await makeDeleteRequest({ url: server.url, path, token: server.accessToken, statusCodeExpected: HttpStatusCode.NOT_FOUND_404 })
+      await makeDeleteRequest({ url: server.url, path, token: server.accessToken, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
 
     it('Should succeed with the same user', async function () {
       let commentToDelete: number
 
       {
-        const res = await addVideoCommentThread(server.url, userAccessToken, video.uuid, 'hello')
-        commentToDelete = res.body.comment.id
+        const created = await server.comments.createThread({ videoId: video.uuid, token: userAccessToken, text: 'hello' })
+        commentToDelete = created.id
       }
 
       const path = '/api/v1/videos/' + video.uuid + '/comments/' + commentToDelete
 
-      await makeDeleteRequest({ url: server.url, path, token: userAccessToken2, statusCodeExpected: HttpStatusCode.FORBIDDEN_403 })
-      await makeDeleteRequest({ url: server.url, path, token: userAccessToken, statusCodeExpected: HttpStatusCode.NO_CONTENT_204 })
+      await makeDeleteRequest({ url: server.url, path, token: userAccessToken2, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
+      await makeDeleteRequest({ url: server.url, path, token: userAccessToken, expectedStatus: HttpStatusCode.NO_CONTENT_204 })
     })
 
     it('Should succeed with the owner of the video', async function () {
@@ -296,19 +288,19 @@ describe('Test video comments API validator', function () {
       let anotherVideoUUID: string
 
       {
-        const res = await uploadVideo(server.url, userAccessToken, { name: 'video' })
-        anotherVideoUUID = res.body.video.uuid
+        const { uuid } = await server.videos.upload({ token: userAccessToken, attributes: { name: 'video' } })
+        anotherVideoUUID = uuid
       }
 
       {
-        const res = await addVideoCommentThread(server.url, server.accessToken, anotherVideoUUID, 'hello')
-        commentToDelete = res.body.comment.id
+        const created = await server.comments.createThread({ videoId: anotherVideoUUID, text: 'hello' })
+        commentToDelete = created.id
       }
 
       const path = '/api/v1/videos/' + anotherVideoUUID + '/comments/' + commentToDelete
 
-      await makeDeleteRequest({ url: server.url, path, token: userAccessToken2, statusCodeExpected: HttpStatusCode.FORBIDDEN_403 })
-      await makeDeleteRequest({ url: server.url, path, token: userAccessToken, statusCodeExpected: HttpStatusCode.NO_CONTENT_204 })
+      await makeDeleteRequest({ url: server.url, path, token: userAccessToken2, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
+      await makeDeleteRequest({ url: server.url, path, token: userAccessToken, expectedStatus: HttpStatusCode.NO_CONTENT_204 })
     })
 
     it('Should succeed with the correct parameters', async function () {
@@ -316,15 +308,14 @@ describe('Test video comments API validator', function () {
         url: server.url,
         path: pathComment,
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
   })
 
   describe('When a video has comments disabled', function () {
     before(async function () {
-      const res = await uploadVideo(server.url, server.accessToken, { commentsEnabled: false })
-      video = res.body.video
+      video = await server.videos.upload({ attributes: { commentsEnabled: false } })
       pathThread = '/api/v1/videos/' + video.uuid + '/comment-threads'
     })
 
@@ -332,7 +323,7 @@ describe('Test video comments API validator', function () {
       const res = await makeGetRequest({
         url: server.url,
         path: pathThread,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
       expect(res.body.total).to.equal(0)
       expect(res.body.data).to.have.lengthOf(0)
@@ -349,7 +340,7 @@ describe('Test video comments API validator', function () {
         path: pathThread,
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.CONFLICT_409
+        expectedStatus: HttpStatusCode.CONFLICT_409
       })
     })
 
@@ -375,7 +366,7 @@ describe('Test video comments API validator', function () {
       await makeGetRequest({
         url: server.url,
         path,
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -384,7 +375,7 @@ describe('Test video comments API validator', function () {
         url: server.url,
         path,
         token: userAccessToken,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
 
@@ -399,7 +390,7 @@ describe('Test video comments API validator', function () {
           searchAccount: 'toto',
           searchVideo: 'toto'
         },
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
   })
diff --git a/server/tests/api/check-params/video-imports.ts b/server/tests/api/check-params/video-imports.ts
index a27b624d0..d6d745488 100644
--- a/server/tests/api/check-params/video-imports.ts
+++ b/server/tests/api/check-params/video-imports.ts
@@ -2,33 +2,25 @@
 
 import 'mocha'
 import { omit } from 'lodash'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
 import {
   buildAbsoluteFixturePath,
+  checkBadCountPagination,
+  checkBadSortPagination,
+  checkBadStartPagination,
   cleanupTests,
-  createUser,
-  flushAndRunServer,
-  getMyUserInformation,
-  immutableAssign,
+  createSingleServer,
+  FIXTURE_URLS,
   makeGetRequest,
   makePostBodyRequest,
   makeUploadRequest,
-  ServerInfo,
-  setAccessTokensToServers,
-  updateCustomSubConfig,
-  userLogin
-} from '../../../../shared/extra-utils'
-import {
-  checkBadCountPagination,
-  checkBadSortPagination,
-  checkBadStartPagination
-} from '../../../../shared/extra-utils/requests/check-api-params'
-import { getGoodVideoUrl, getMagnetURI } from '../../../../shared/extra-utils/videos/video-imports'
-import { VideoPrivacy } from '../../../../shared/models/videos/video-privacy.enum'
+  PeerTubeServer,
+  setAccessTokensToServers
+} from '@shared/extra-utils'
+import { HttpStatusCode, VideoPrivacy } from '@shared/models'
 
 describe('Test video imports API validator', function () {
   const path = '/api/v1/videos/imports'
-  let server: ServerInfo
+  let server: PeerTubeServer
   let userAccessToken = ''
   let channelId: number
 
@@ -37,18 +29,18 @@ describe('Test video imports API validator', function () {
   before(async function () {
     this.timeout(30000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
 
     await setAccessTokensToServers([ server ])
 
     const username = 'user1'
     const password = 'my super password'
-    await createUser({ url: server.url, accessToken: server.accessToken, username: username, password: password })
-    userAccessToken = await userLogin(server, { username, password })
+    await server.users.create({ username: username, password: password })
+    userAccessToken = await server.login.getAccessToken({ username, password })
 
     {
-      const res = await getMyUserInformation(server.url, server.accessToken)
-      channelId = res.body.videoChannels[0].id
+      const { videoChannels } = await server.users.getMyInfo()
+      channelId = videoChannels[0].id
     }
   })
 
@@ -68,7 +60,7 @@ describe('Test video imports API validator', function () {
     })
 
     it('Should success with the correct parameters', async function () {
-      await makeGetRequest({ url: server.url, path: myPath, statusCodeExpected: HttpStatusCode.OK_200, token: server.accessToken })
+      await makeGetRequest({ url: server.url, path: myPath, expectedStatus: HttpStatusCode.OK_200, token: server.accessToken })
     })
   })
 
@@ -77,7 +69,7 @@ describe('Test video imports API validator', function () {
 
     before(function () {
       baseCorrectParams = {
-        targetUrl: getGoodVideoUrl(),
+        targetUrl: FIXTURE_URLS.goodVideo,
         name: 'my super name',
         category: 5,
         licence: 1,
@@ -106,48 +98,48 @@ describe('Test video imports API validator', function () {
         path,
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
     it('Should fail with a bad target url', async function () {
-      const fields = immutableAssign(baseCorrectParams, { targetUrl: 'htt://hello' })
+      const fields = { ...baseCorrectParams, targetUrl: 'htt://hello' }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with a long name', async function () {
-      const fields = immutableAssign(baseCorrectParams, { name: 'super'.repeat(65) })
+      const fields = { ...baseCorrectParams, name: 'super'.repeat(65) }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with a bad category', async function () {
-      const fields = immutableAssign(baseCorrectParams, { category: 125 })
+      const fields = { ...baseCorrectParams, category: 125 }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with a bad licence', async function () {
-      const fields = immutableAssign(baseCorrectParams, { licence: 125 })
+      const fields = { ...baseCorrectParams, licence: 125 }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with a bad language', async function () {
-      const fields = immutableAssign(baseCorrectParams, { language: 'a'.repeat(15) })
+      const fields = { ...baseCorrectParams, language: 'a'.repeat(15) }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with a long description', async function () {
-      const fields = immutableAssign(baseCorrectParams, { description: 'super'.repeat(2500) })
+      const fields = { ...baseCorrectParams, description: 'super'.repeat(2500) }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with a long support text', async function () {
-      const fields = immutableAssign(baseCorrectParams, { support: 'super'.repeat(201) })
+      const fields = { ...baseCorrectParams, support: 'super'.repeat(201) }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
@@ -159,7 +151,7 @@ describe('Test video imports API validator', function () {
     })
 
     it('Should fail with a bad channel', async function () {
-      const fields = immutableAssign(baseCorrectParams, { channelId: 545454 })
+      const fields = { ...baseCorrectParams, channelId: 545454 }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
@@ -169,31 +161,31 @@ describe('Test video imports API validator', function () {
         username: 'fake',
         password: 'fake_password'
       }
-      await createUser({ url: server.url, accessToken: server.accessToken, username: user.username, password: user.password })
+      await server.users.create({ username: user.username, password: user.password })
 
-      const accessTokenUser = await userLogin(server, user)
-      const res = await getMyUserInformation(server.url, accessTokenUser)
-      const customChannelId = res.body.videoChannels[0].id
+      const accessTokenUser = await server.login.getAccessToken(user)
+      const { videoChannels } = await server.users.getMyInfo({ token: accessTokenUser })
+      const customChannelId = videoChannels[0].id
 
-      const fields = immutableAssign(baseCorrectParams, { channelId: customChannelId })
+      const fields = { ...baseCorrectParams, channelId: customChannelId }
 
       await makePostBodyRequest({ url: server.url, path, token: userAccessToken, fields })
     })
 
     it('Should fail with too many tags', async function () {
-      const fields = immutableAssign(baseCorrectParams, { tags: [ 'tag1', 'tag2', 'tag3', 'tag4', 'tag5', 'tag6' ] })
+      const fields = { ...baseCorrectParams, tags: [ 'tag1', 'tag2', 'tag3', 'tag4', 'tag5', 'tag6' ] }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with a tag length too low', async function () {
-      const fields = immutableAssign(baseCorrectParams, { tags: [ 'tag1', 't' ] })
+      const fields = { ...baseCorrectParams, tags: [ 'tag1', 't' ] }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
 
     it('Should fail with a tag length too big', async function () {
-      const fields = immutableAssign(baseCorrectParams, { tags: [ 'tag1', 'my_super_tag_too_long_long_long_long_long_long' ] })
+      const fields = { ...baseCorrectParams, tags: [ 'tag1', 'my_super_tag_too_long_long_long_long_long_long' ] }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
@@ -245,7 +237,7 @@ describe('Test video imports API validator', function () {
 
     it('Should fail with an invalid magnet URI', async function () {
       let fields = omit(baseCorrectParams, 'targetUrl')
-      fields = immutableAssign(fields, { magnetUri: 'blabla' })
+      fields = { ...fields, magnetUri: 'blabla' }
 
       await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields })
     })
@@ -258,19 +250,21 @@ describe('Test video imports API validator', function () {
         path,
         token: server.accessToken,
         fields: baseCorrectParams,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
 
     it('Should forbid to import http videos', async function () {
-      await updateCustomSubConfig(server.url, server.accessToken, {
-        import: {
-          videos: {
-            http: {
-              enabled: false
-            },
-            torrent: {
-              enabled: true
+      await server.config.updateCustomSubConfig({
+        newConfig: {
+          import: {
+            videos: {
+              http: {
+                enabled: false
+              },
+              torrent: {
+                enabled: true
+              }
             }
           }
         }
@@ -281,33 +275,35 @@ describe('Test video imports API validator', function () {
         path,
         token: server.accessToken,
         fields: baseCorrectParams,
-        statusCodeExpected: HttpStatusCode.CONFLICT_409
+        expectedStatus: HttpStatusCode.CONFLICT_409
       })
     })
 
     it('Should forbid to import torrent videos', async function () {
-      await updateCustomSubConfig(server.url, server.accessToken, {
-        import: {
-          videos: {
-            http: {
-              enabled: true
-            },
-            torrent: {
-              enabled: false
+      await server.config.updateCustomSubConfig({
+        newConfig: {
+          import: {
+            videos: {
+              http: {
+                enabled: true
+              },
+              torrent: {
+                enabled: false
+              }
             }
           }
         }
       })
 
       let fields = omit(baseCorrectParams, 'targetUrl')
-      fields = immutableAssign(fields, { magnetUri: getMagnetURI() })
+      fields = { ...fields, magnetUri: FIXTURE_URLS.magnet }
 
       await makePostBodyRequest({
         url: server.url,
         path,
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.CONFLICT_409
+        expectedStatus: HttpStatusCode.CONFLICT_409
       })
 
       fields = omit(fields, 'magnetUri')
@@ -321,7 +317,7 @@ describe('Test video imports API validator', function () {
         token: server.accessToken,
         fields,
         attaches,
-        statusCodeExpected: HttpStatusCode.CONFLICT_409
+        expectedStatus: HttpStatusCode.CONFLICT_409
       })
     })
   })
diff --git a/server/tests/api/check-params/video-playlists.ts b/server/tests/api/check-params/video-playlists.ts
index 18253d11a..e4d541b48 100644
--- a/server/tests/api/check-params/video-playlists.ts
+++ b/server/tests/api/check-params/video-playlists.ts
@@ -1,34 +1,31 @@
 /* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
 
 import 'mocha'
-import { VideoPlaylistCreateResult, VideoPlaylistPrivacy, VideoPlaylistType } from '@shared/models'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
 import {
-  addVideoInPlaylist,
   checkBadCountPagination,
   checkBadSortPagination,
   checkBadStartPagination,
   cleanupTests,
-  createVideoPlaylist,
-  deleteVideoPlaylist,
-  flushAndRunServer,
-  generateUserAccessToken,
-  getAccountPlaylistsListWithToken,
-  getVideoPlaylist,
-  immutableAssign,
+  createSingleServer,
   makeGetRequest,
-  removeVideoFromPlaylist,
-  reorderVideosPlaylist,
-  ServerInfo,
+  PeerTubeServer,
+  PlaylistsCommand,
   setAccessTokensToServers,
-  setDefaultVideoChannel,
-  updateVideoPlaylist,
-  updateVideoPlaylistElement,
-  uploadVideoAndGetId
-} from '../../../../shared/extra-utils'
+  setDefaultVideoChannel
+} from '@shared/extra-utils'
+import {
+  HttpStatusCode,
+  VideoPlaylistCreate,
+  VideoPlaylistCreateResult,
+  VideoPlaylistElementCreate,
+  VideoPlaylistElementUpdate,
+  VideoPlaylistPrivacy,
+  VideoPlaylistReorder,
+  VideoPlaylistType
+} from '@shared/models'
 
 describe('Test video playlists API validator', function () {
-  let server: ServerInfo
+  let server: PeerTubeServer
   let userAccessToken: string
 
   let playlist: VideoPlaylistCreateResult
@@ -36,49 +33,54 @@ describe('Test video playlists API validator', function () {
 
   let watchLaterPlaylistId: number
   let videoId: number
-  let playlistElementId: number
+  let elementId: number
+
+  let command: PlaylistsCommand
 
   // ---------------------------------------------------------------
 
   before(async function () {
     this.timeout(30000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
 
     await setAccessTokensToServers([ server ])
     await setDefaultVideoChannel([ server ])
 
-    userAccessToken = await generateUserAccessToken(server, 'user1')
-    videoId = (await uploadVideoAndGetId({ server, videoName: 'video 1' })).id
+    userAccessToken = await server.users.generateUserAndToken('user1')
+    videoId = (await server.videos.quickUpload({ name: 'video 1' })).id
+
+    command = server.playlists
 
     {
-      const res = await getAccountPlaylistsListWithToken(server.url, server.accessToken, 'root', 0, 5, VideoPlaylistType.WATCH_LATER)
-      watchLaterPlaylistId = res.body.data[0].id
+      const { data } = await command.listByAccount({
+        token: server.accessToken,
+        handle: 'root',
+        start: 0,
+        count: 5,
+        playlistType: VideoPlaylistType.WATCH_LATER
+      })
+      watchLaterPlaylistId = data[0].id
     }
 
     {
-      const res = await createVideoPlaylist({
-        url: server.url,
-        token: server.accessToken,
-        playlistAttrs: {
+      playlist = await command.create({
+        attributes: {
           displayName: 'super playlist',
           privacy: VideoPlaylistPrivacy.PUBLIC,
-          videoChannelId: server.videoChannel.id
+          videoChannelId: server.store.channel.id
         }
       })
-      playlist = res.body.videoPlaylist
     }
 
     {
-      const res = await createVideoPlaylist({
-        url: server.url,
-        token: server.accessToken,
-        playlistAttrs: {
+      const created = await command.create({
+        attributes: {
           displayName: 'private',
           privacy: VideoPlaylistPrivacy.PRIVATE
         }
       })
-      privatePlaylistUUID = res.body.videoPlaylist.uuid
+      privatePlaylistUUID = created.uuid
     }
   })
 
@@ -117,7 +119,7 @@ describe('Test video playlists API validator', function () {
       await makeGetRequest({
         url: server.url,
         path: accountPath,
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404,
+        expectedStatus: HttpStatusCode.NOT_FOUND_404,
         token: server.accessToken
       })
     })
@@ -128,18 +130,18 @@ describe('Test video playlists API validator', function () {
       await makeGetRequest({
         url: server.url,
         path: accountPath,
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404,
+        expectedStatus: HttpStatusCode.NOT_FOUND_404,
         token: server.accessToken
       })
     })
 
     it('Should success with the correct parameters', async function () {
-      await makeGetRequest({ url: server.url, path: globalPath, statusCodeExpected: HttpStatusCode.OK_200, token: server.accessToken })
-      await makeGetRequest({ url: server.url, path: accountPath, statusCodeExpected: HttpStatusCode.OK_200, token: server.accessToken })
+      await makeGetRequest({ url: server.url, path: globalPath, expectedStatus: HttpStatusCode.OK_200, token: server.accessToken })
+      await makeGetRequest({ url: server.url, path: accountPath, expectedStatus: HttpStatusCode.OK_200, token: server.accessToken })
       await makeGetRequest({
         url: server.url,
         path: videoChannelPath,
-        statusCodeExpected: HttpStatusCode.OK_200,
+        expectedStatus: HttpStatusCode.OK_200,
         token: server.accessToken
       })
     })
@@ -157,141 +159,144 @@ describe('Test video playlists API validator', function () {
     })
 
     it('Should success with the correct parameters', async function () {
-      await makeGetRequest({ url: server.url, path: path + playlist.shortUUID + '/videos', statusCodeExpected: HttpStatusCode.OK_200 })
+      await makeGetRequest({ url: server.url, path: path + playlist.shortUUID + '/videos', expectedStatus: HttpStatusCode.OK_200 })
     })
   })
 
   describe('When getting a video playlist', function () {
     it('Should fail with a bad id or uuid', async function () {
-      await getVideoPlaylist(server.url, 'toto', HttpStatusCode.BAD_REQUEST_400)
+      await command.get({ playlistId: 'toto', expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
     })
 
     it('Should fail with an unknown playlist', async function () {
-      await getVideoPlaylist(server.url, 42, HttpStatusCode.NOT_FOUND_404)
+      await command.get({ playlistId: 42, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
 
     it('Should fail to get an unlisted playlist with the number id', async function () {
-      const res = await createVideoPlaylist({
-        url: server.url,
-        token: server.accessToken,
-        playlistAttrs: {
+      const playlist = await command.create({
+        attributes: {
           displayName: 'super playlist',
-          videoChannelId: server.videoChannel.id,
+          videoChannelId: server.store.channel.id,
           privacy: VideoPlaylistPrivacy.UNLISTED
         }
       })
-      const playlist = res.body.videoPlaylist
 
-      await getVideoPlaylist(server.url, playlist.id, HttpStatusCode.NOT_FOUND_404)
-      await getVideoPlaylist(server.url, playlist.uuid, HttpStatusCode.OK_200)
+      await command.get({ playlistId: playlist.id, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
+      await command.get({ playlistId: playlist.uuid, expectedStatus: HttpStatusCode.OK_200 })
     })
 
     it('Should succeed with the correct params', async function () {
-      await getVideoPlaylist(server.url, playlist.uuid, HttpStatusCode.OK_200)
+      await command.get({ playlistId: playlist.uuid, expectedStatus: HttpStatusCode.OK_200 })
     })
   })
 
   describe('When creating/updating a video playlist', function () {
-    const getBase = (playlistAttrs: any = {}, wrapper: any = {}) => {
-      return Object.assign({
-        expectedStatus: HttpStatusCode.BAD_REQUEST_400,
-        url: server.url,
-        token: server.accessToken,
-        playlistAttrs: Object.assign({
+    const getBase = (
+      attributes?: Partial<VideoPlaylistCreate>,
+      wrapper?: Partial<Parameters<PlaylistsCommand['create']>[0]>
+    ) => {
+      return {
+        attributes: {
           displayName: 'display name',
           privacy: VideoPlaylistPrivacy.UNLISTED,
           thumbnailfile: 'thumbnail.jpg',
-          videoChannelId: server.videoChannel.id
-        }, playlistAttrs)
-      }, wrapper)
+          videoChannelId: server.store.channel.id,
+
+          ...attributes
+        },
+
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400,
+
+        ...wrapper
+      }
     }
     const getUpdate = (params: any, playlistId: number | string) => {
-      return immutableAssign(params, { playlistId: playlistId })
+      return { ...params, playlistId: playlistId }
     }
 
     it('Should fail with an unauthenticated user', async function () {
       const params = getBase({}, { token: null, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
 
-      await createVideoPlaylist(params)
-      await updateVideoPlaylist(getUpdate(params, playlist.shortUUID))
+      await command.create(params)
+      await command.update(getUpdate(params, playlist.shortUUID))
     })
 
     it('Should fail without displayName', async function () {
       const params = getBase({ displayName: undefined })
 
-      await createVideoPlaylist(params)
+      await command.create(params)
     })
 
     it('Should fail with an incorrect display name', async function () {
       const params = getBase({ displayName: 's'.repeat(300) })
 
-      await createVideoPlaylist(params)
-      await updateVideoPlaylist(getUpdate(params, playlist.shortUUID))
+      await command.create(params)
+      await command.update(getUpdate(params, playlist.shortUUID))
     })
 
     it('Should fail with an incorrect description', async function () {
       const params = getBase({ description: 't' })
 
-      await createVideoPlaylist(params)
-      await updateVideoPlaylist(getUpdate(params, playlist.shortUUID))
+      await command.create(params)
+      await command.update(getUpdate(params, playlist.shortUUID))
     })
 
     it('Should fail with an incorrect privacy', async function () {
       const params = getBase({ privacy: 45 })
 
-      await createVideoPlaylist(params)
-      await updateVideoPlaylist(getUpdate(params, playlist.shortUUID))
+      await command.create(params)
+      await command.update(getUpdate(params, playlist.shortUUID))
     })
 
     it('Should fail with an unknown video channel id', async function () {
       const params = getBase({ videoChannelId: 42 }, { expectedStatus: HttpStatusCode.NOT_FOUND_404 })
 
-      await createVideoPlaylist(params)
-      await updateVideoPlaylist(getUpdate(params, playlist.shortUUID))
+      await command.create(params)
+      await command.update(getUpdate(params, playlist.shortUUID))
     })
 
     it('Should fail with an incorrect thumbnail file', async function () {
       const params = getBase({ thumbnailfile: 'video_short.mp4' })
 
-      await createVideoPlaylist(params)
-      await updateVideoPlaylist(getUpdate(params, playlist.shortUUID))
+      await command.create(params)
+      await command.update(getUpdate(params, playlist.shortUUID))
     })
 
     it('Should fail with a thumbnail file too big', async function () {
       const params = getBase({ thumbnailfile: 'preview-big.png' })
 
-      await createVideoPlaylist(params)
-      await updateVideoPlaylist(getUpdate(params, playlist.shortUUID))
+      await command.create(params)
+      await command.update(getUpdate(params, playlist.shortUUID))
     })
 
     it('Should fail to set "public" a playlist not assigned to a channel', async function () {
       const params = getBase({ privacy: VideoPlaylistPrivacy.PUBLIC, videoChannelId: undefined })
-      const params2 = getBase({ privacy: VideoPlaylistPrivacy.PUBLIC, videoChannelId: 'null' })
-      const params3 = getBase({ privacy: undefined, videoChannelId: 'null' })
+      const params2 = getBase({ privacy: VideoPlaylistPrivacy.PUBLIC, videoChannelId: 'null' as any })
+      const params3 = getBase({ privacy: undefined, videoChannelId: 'null' as any })
 
-      await createVideoPlaylist(params)
-      await createVideoPlaylist(params2)
-      await updateVideoPlaylist(getUpdate(params, privatePlaylistUUID))
-      await updateVideoPlaylist(getUpdate(params2, playlist.shortUUID))
-      await updateVideoPlaylist(getUpdate(params3, playlist.shortUUID))
+      await command.create(params)
+      await command.create(params2)
+      await command.update(getUpdate(params, privatePlaylistUUID))
+      await command.update(getUpdate(params2, playlist.shortUUID))
+      await command.update(getUpdate(params3, playlist.shortUUID))
     })
 
     it('Should fail with an unknown playlist to update', async function () {
-      await updateVideoPlaylist(getUpdate(
+      await command.update(getUpdate(
         getBase({}, { expectedStatus: HttpStatusCode.NOT_FOUND_404 }),
         42
       ))
     })
 
     it('Should fail to update a playlist of another user', async function () {
-      await updateVideoPlaylist(getUpdate(
+      await command.update(getUpdate(
         getBase({}, { token: userAccessToken, expectedStatus: HttpStatusCode.FORBIDDEN_403 }),
         playlist.shortUUID
       ))
     })
 
     it('Should fail to update the watch later playlist', async function () {
-      await updateVideoPlaylist(getUpdate(
+      await command.update(getUpdate(
         getBase({}, { expectedStatus: HttpStatusCode.BAD_REQUEST_400 }),
         watchLaterPlaylistId
       ))
@@ -300,146 +305,158 @@ describe('Test video playlists API validator', function () {
     it('Should succeed with the correct params', async function () {
       {
         const params = getBase({}, { expectedStatus: HttpStatusCode.OK_200 })
-        await createVideoPlaylist(params)
+        await command.create(params)
       }
 
       {
         const params = getBase({}, { expectedStatus: HttpStatusCode.NO_CONTENT_204 })
-        await updateVideoPlaylist(getUpdate(params, playlist.shortUUID))
+        await command.update(getUpdate(params, playlist.shortUUID))
       }
     })
   })
 
   describe('When adding an element in a playlist', function () {
-    const getBase = (elementAttrs: any = {}, wrapper: any = {}) => {
-      return Object.assign({
-        expectedStatus: HttpStatusCode.BAD_REQUEST_400,
-        url: server.url,
-        token: server.accessToken,
-        playlistId: playlist.id,
-        elementAttrs: Object.assign({
+    const getBase = (
+      attributes?: Partial<VideoPlaylistElementCreate>,
+      wrapper?: Partial<Parameters<PlaylistsCommand['addElement']>[0]>
+    ) => {
+      return {
+        attributes: {
           videoId,
           startTimestamp: 2,
-          stopTimestamp: 3
-        }, elementAttrs)
-      }, wrapper)
+          stopTimestamp: 3,
+
+          ...attributes
+        },
+
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400,
+        playlistId: playlist.id,
+
+        ...wrapper
+      }
     }
 
     it('Should fail with an unauthenticated user', async function () {
       const params = getBase({}, { token: null, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
-      await addVideoInPlaylist(params)
+      await command.addElement(params)
     })
 
     it('Should fail with the playlist of another user', async function () {
       const params = getBase({}, { token: userAccessToken, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
-      await addVideoInPlaylist(params)
+      await command.addElement(params)
     })
 
     it('Should fail with an unknown or incorrect playlist id', async function () {
       {
         const params = getBase({}, { playlistId: 'toto' })
-        await addVideoInPlaylist(params)
+        await command.addElement(params)
       }
 
       {
         const params = getBase({}, { playlistId: 42, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
-        await addVideoInPlaylist(params)
+        await command.addElement(params)
       }
     })
 
     it('Should fail with an unknown or incorrect video id', async function () {
       const params = getBase({ videoId: 42 }, { expectedStatus: HttpStatusCode.NOT_FOUND_404 })
-      await addVideoInPlaylist(params)
+      await command.addElement(params)
     })
 
     it('Should fail with a bad start/stop timestamp', async function () {
       {
         const params = getBase({ startTimestamp: -42 })
-        await addVideoInPlaylist(params)
+        await command.addElement(params)
       }
 
       {
         const params = getBase({ stopTimestamp: 'toto' as any })
-        await addVideoInPlaylist(params)
+        await command.addElement(params)
       }
     })
 
     it('Succeed with the correct params', async function () {
       const params = getBase({}, { expectedStatus: HttpStatusCode.OK_200 })
-      const res = await addVideoInPlaylist(params)
-      playlistElementId = res.body.videoPlaylistElement.id
+      const created = await command.addElement(params)
+      elementId = created.id
     })
   })
 
   describe('When updating an element in a playlist', function () {
-    const getBase = (elementAttrs: any = {}, wrapper: any = {}) => {
-      return Object.assign({
-        url: server.url,
-        token: server.accessToken,
-        elementAttrs: Object.assign({
+    const getBase = (
+      attributes?: Partial<VideoPlaylistElementUpdate>,
+      wrapper?: Partial<Parameters<PlaylistsCommand['updateElement']>[0]>
+    ) => {
+      return {
+        attributes: {
           startTimestamp: 1,
-          stopTimestamp: 2
-        }, elementAttrs),
-        playlistElementId,
+          stopTimestamp: 2,
+
+          ...attributes
+        },
+
+        elementId,
         playlistId: playlist.id,
-        expectedStatus: HttpStatusCode.BAD_REQUEST_400
-      }, wrapper)
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400,
+
+        ...wrapper
+      }
     }
 
     it('Should fail with an unauthenticated user', async function () {
       const params = getBase({}, { token: null, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
-      await updateVideoPlaylistElement(params)
+      await command.updateElement(params)
     })
 
     it('Should fail with the playlist of another user', async function () {
       const params = getBase({}, { token: userAccessToken, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
-      await updateVideoPlaylistElement(params)
+      await command.updateElement(params)
     })
 
     it('Should fail with an unknown or incorrect playlist id', async function () {
       {
         const params = getBase({}, { playlistId: 'toto' })
-        await updateVideoPlaylistElement(params)
+        await command.updateElement(params)
       }
 
       {
         const params = getBase({}, { playlistId: 42, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
-        await updateVideoPlaylistElement(params)
+        await command.updateElement(params)
       }
     })
 
     it('Should fail with an unknown or incorrect playlistElement id', async function () {
       {
-        const params = getBase({}, { playlistElementId: 'toto' })
-        await updateVideoPlaylistElement(params)
+        const params = getBase({}, { elementId: 'toto' })
+        await command.updateElement(params)
       }
 
       {
-        const params = getBase({}, { playlistElementId: 42, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
-        await updateVideoPlaylistElement(params)
+        const params = getBase({}, { elementId: 42, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
+        await command.updateElement(params)
       }
     })
 
     it('Should fail with a bad start/stop timestamp', async function () {
       {
         const params = getBase({ startTimestamp: 'toto' as any })
-        await updateVideoPlaylistElement(params)
+        await command.updateElement(params)
       }
 
       {
         const params = getBase({ stopTimestamp: -42 })
-        await updateVideoPlaylistElement(params)
+        await command.updateElement(params)
       }
     })
 
     it('Should fail with an unknown element', async function () {
-      const params = getBase({}, { playlistElementId: 888, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
-      await updateVideoPlaylistElement(params)
+      const params = getBase({}, { elementId: 888, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
+      await command.updateElement(params)
     })
 
     it('Succeed with the correct params', async function () {
       const params = getBase({}, { expectedStatus: HttpStatusCode.NO_CONTENT_204 })
-      await updateVideoPlaylistElement(params)
+      await command.updateElement(params)
     })
   })
 
@@ -447,110 +464,111 @@ describe('Test video playlists API validator', function () {
     let videoId3: number
     let videoId4: number
 
-    const getBase = (elementAttrs: any = {}, wrapper: any = {}) => {
-      return Object.assign({
-        url: server.url,
-        token: server.accessToken,
-        playlistId: playlist.shortUUID,
-        elementAttrs: Object.assign({
+    const getBase = (
+      attributes?: Partial<VideoPlaylistReorder>,
+      wrapper?: Partial<Parameters<PlaylistsCommand['reorderElements']>[0]>
+    ) => {
+      return {
+        attributes: {
           startPosition: 1,
           insertAfterPosition: 2,
-          reorderLength: 3
-        }, elementAttrs),
-        expectedStatus: HttpStatusCode.BAD_REQUEST_400
-      }, wrapper)
+          reorderLength: 3,
+
+          ...attributes
+        },
+
+        playlistId: playlist.shortUUID,
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400,
+
+        ...wrapper
+      }
     }
 
     before(async function () {
-      videoId3 = (await uploadVideoAndGetId({ server, videoName: 'video 3' })).id
-      videoId4 = (await uploadVideoAndGetId({ server, videoName: 'video 4' })).id
+      videoId3 = (await server.videos.quickUpload({ name: 'video 3' })).id
+      videoId4 = (await server.videos.quickUpload({ name: 'video 4' })).id
 
       for (const id of [ videoId3, videoId4 ]) {
-        await addVideoInPlaylist({
-          url: server.url,
-          token: server.accessToken,
-          playlistId: playlist.shortUUID,
-          elementAttrs: { videoId: id }
-        })
+        await command.addElement({ playlistId: playlist.shortUUID, attributes: { videoId: id } })
       }
     })
 
     it('Should fail with an unauthenticated user', async function () {
       const params = getBase({}, { token: null, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
-      await reorderVideosPlaylist(params)
+      await command.reorderElements(params)
     })
 
     it('Should fail with the playlist of another user', async function () {
       const params = getBase({}, { token: userAccessToken, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
-      await reorderVideosPlaylist(params)
+      await command.reorderElements(params)
     })
 
     it('Should fail with an invalid playlist', async function () {
       {
         const params = getBase({}, { playlistId: 'toto' })
-        await reorderVideosPlaylist(params)
+        await command.reorderElements(params)
       }
 
       {
         const params = getBase({}, { playlistId: 42, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
-        await reorderVideosPlaylist(params)
+        await command.reorderElements(params)
       }
     })
 
     it('Should fail with an invalid start position', async function () {
       {
         const params = getBase({ startPosition: -1 })
-        await reorderVideosPlaylist(params)
+        await command.reorderElements(params)
       }
 
       {
         const params = getBase({ startPosition: 'toto' as any })
-        await reorderVideosPlaylist(params)
+        await command.reorderElements(params)
       }
 
       {
         const params = getBase({ startPosition: 42 })
-        await reorderVideosPlaylist(params)
+        await command.reorderElements(params)
       }
     })
 
     it('Should fail with an invalid insert after position', async function () {
       {
         const params = getBase({ insertAfterPosition: 'toto' as any })
-        await reorderVideosPlaylist(params)
+        await command.reorderElements(params)
       }
 
       {
         const params = getBase({ insertAfterPosition: -2 })
-        await reorderVideosPlaylist(params)
+        await command.reorderElements(params)
       }
 
       {
         const params = getBase({ insertAfterPosition: 42 })
-        await reorderVideosPlaylist(params)
+        await command.reorderElements(params)
       }
     })
 
     it('Should fail with an invalid reorder length', async function () {
       {
         const params = getBase({ reorderLength: 'toto' as any })
-        await reorderVideosPlaylist(params)
+        await command.reorderElements(params)
       }
 
       {
         const params = getBase({ reorderLength: -2 })
-        await reorderVideosPlaylist(params)
+        await command.reorderElements(params)
       }
 
       {
         const params = getBase({ reorderLength: 42 })
-        await reorderVideosPlaylist(params)
+        await command.reorderElements(params)
       }
     })
 
     it('Succeed with the correct params', async function () {
       const params = getBase({}, { expectedStatus: HttpStatusCode.NO_CONTENT_204 })
-      await reorderVideosPlaylist(params)
+      await command.reorderElements(params)
     })
   })
 
@@ -562,7 +580,7 @@ describe('Test video playlists API validator', function () {
         url: server.url,
         path,
         query: { videoIds: [ 1, 2 ] },
-        statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401
+        expectedStatus: HttpStatusCode.UNAUTHORIZED_401
       })
     })
 
@@ -595,82 +613,82 @@ describe('Test video playlists API validator', function () {
         token: server.accessToken,
         path,
         query: { videoIds: [ 1, 2 ] },
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
     })
   })
 
   describe('When deleting an element in a playlist', function () {
-    const getBase = (wrapper: any = {}) => {
-      return Object.assign({
-        url: server.url,
-        token: server.accessToken,
-        playlistElementId,
+    const getBase = (wrapper: Partial<Parameters<PlaylistsCommand['removeElement']>[0]>) => {
+      return {
+        elementId,
         playlistId: playlist.uuid,
-        expectedStatus: HttpStatusCode.BAD_REQUEST_400
-      }, wrapper)
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400,
+
+        ...wrapper
+      }
     }
 
     it('Should fail with an unauthenticated user', async function () {
       const params = getBase({ token: null, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
-      await removeVideoFromPlaylist(params)
+      await command.removeElement(params)
     })
 
     it('Should fail with the playlist of another user', async function () {
       const params = getBase({ token: userAccessToken, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
-      await removeVideoFromPlaylist(params)
+      await command.removeElement(params)
     })
 
     it('Should fail with an unknown or incorrect playlist id', async function () {
       {
         const params = getBase({ playlistId: 'toto' })
-        await removeVideoFromPlaylist(params)
+        await command.removeElement(params)
       }
 
       {
         const params = getBase({ playlistId: 42, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
-        await removeVideoFromPlaylist(params)
+        await command.removeElement(params)
       }
     })
 
     it('Should fail with an unknown or incorrect video id', async function () {
       {
-        const params = getBase({ playlistElementId: 'toto' })
-        await removeVideoFromPlaylist(params)
+        const params = getBase({ elementId: 'toto' as any })
+        await command.removeElement(params)
       }
 
       {
-        const params = getBase({ playlistElementId: 42, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
-        await removeVideoFromPlaylist(params)
+        const params = getBase({ elementId: 42, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
+        await command.removeElement(params)
       }
     })
 
     it('Should fail with an unknown element', async function () {
-      const params = getBase({ playlistElementId: 888, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
-      await removeVideoFromPlaylist(params)
+      const params = getBase({ elementId: 888, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
+      await command.removeElement(params)
     })
 
     it('Succeed with the correct params', async function () {
       const params = getBase({ expectedStatus: HttpStatusCode.NO_CONTENT_204 })
-      await removeVideoFromPlaylist(params)
+      await command.removeElement(params)
     })
   })
 
   describe('When deleting a playlist', function () {
     it('Should fail with an unknown playlist', async function () {
-      await deleteVideoPlaylist(server.url, server.accessToken, 42, HttpStatusCode.NOT_FOUND_404)
+      await command.delete({ playlistId: 42, expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
 
     it('Should fail with a playlist of another user', async function () {
-      await deleteVideoPlaylist(server.url, userAccessToken, playlist.uuid, HttpStatusCode.FORBIDDEN_403)
+      await command.delete({ token: userAccessToken, playlistId: playlist.uuid, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
     })
 
     it('Should fail with the watch later playlist', async function () {
-      await deleteVideoPlaylist(server.url, server.accessToken, watchLaterPlaylistId, HttpStatusCode.BAD_REQUEST_400)
+      await command.delete({ playlistId: watchLaterPlaylistId, expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
     })
 
     it('Should succeed with the correct params', async function () {
-      await deleteVideoPlaylist(server.url, server.accessToken, playlist.uuid)
+      await command.delete({ playlistId: playlist.uuid })
     })
   })
 
diff --git a/server/tests/api/check-params/videos-filter.ts b/server/tests/api/check-params/videos-filter.ts
index 4d54a4fd0..d08570bbe 100644
--- a/server/tests/api/check-params/videos-filter.ts
+++ b/server/tests/api/check-params/videos-filter.ts
@@ -3,18 +3,15 @@
 import 'mocha'
 import {
   cleanupTests,
-  createUser,
-  flushAndRunServer,
+  createSingleServer,
   makeGetRequest,
-  ServerInfo,
+  PeerTubeServer,
   setAccessTokensToServers,
-  setDefaultVideoChannel,
-  userLogin
-} from '../../../../shared/extra-utils'
-import { UserRole } from '../../../../shared/models/users'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
+  setDefaultVideoChannel
+} from '@shared/extra-utils'
+import { HttpStatusCode, UserRole } from '@shared/models'
 
-async function testEndpoints (server: ServerInfo, token: string, filter: string, statusCodeExpected: HttpStatusCode) {
+async function testEndpoints (server: PeerTubeServer, token: string, filter: string, expectedStatus: HttpStatusCode) {
   const paths = [
     '/api/v1/video-channels/root_channel/videos',
     '/api/v1/accounts/root/videos',
@@ -30,13 +27,13 @@ async function testEndpoints (server: ServerInfo, token: string, filter: string,
       query: {
         filter
       },
-      statusCodeExpected
+      expectedStatus
     })
   }
 }
 
 describe('Test video filters validators', function () {
-  let server: ServerInfo
+  let server: PeerTubeServer
   let userAccessToken: string
   let moderatorAccessToken: string
 
@@ -45,28 +42,19 @@ describe('Test video filters validators', function () {
   before(async function () {
     this.timeout(30000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
 
     await setAccessTokensToServers([ server ])
     await setDefaultVideoChannel([ server ])
 
     const user = { username: 'user1', password: 'my super password' }
-    await createUser({ url: server.url, accessToken: server.accessToken, username: user.username, password: user.password })
-    userAccessToken = await userLogin(server, user)
+    await server.users.create({ username: user.username, password: user.password })
+    userAccessToken = await server.login.getAccessToken(user)
 
     const moderator = { username: 'moderator', password: 'my super password' }
-    await createUser(
-      {
-        url: server.url,
-        accessToken: server.accessToken,
-        username: moderator.username,
-        password: moderator.password,
-        videoQuota: undefined,
-        videoQuotaDaily: undefined,
-        role: UserRole.MODERATOR
-      }
-    )
-    moderatorAccessToken = await userLogin(server, moderator)
+    await server.users.create({ username: moderator.username, password: moderator.password, role: UserRole.MODERATOR })
+
+    moderatorAccessToken = await server.login.getAccessToken(moderator)
   })
 
   describe('When setting a video filter', function () {
@@ -100,7 +88,7 @@ describe('Test video filters validators', function () {
         await makeGetRequest({
           url: server.url,
           path: '/feeds/videos.json',
-          statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401,
+          expectedStatus: HttpStatusCode.UNAUTHORIZED_401,
           query: {
             filter
           }
@@ -112,7 +100,7 @@ describe('Test video filters validators', function () {
       await makeGetRequest({
         url: server.url,
         path: '/feeds/videos.json',
-        statusCodeExpected: HttpStatusCode.OK_200,
+        expectedStatus: HttpStatusCode.OK_200,
         query: {
           filter: 'local'
         }
diff --git a/server/tests/api/check-params/videos-history.ts b/server/tests/api/check-params/videos-history.ts
index 0e91fe0a8..c3c309ed2 100644
--- a/server/tests/api/check-params/videos-history.ts
+++ b/server/tests/api/check-params/videos-history.ts
@@ -5,42 +5,39 @@ import {
   checkBadCountPagination,
   checkBadStartPagination,
   cleanupTests,
-  flushAndRunServer,
+  createSingleServer,
   makeGetRequest,
   makePostBodyRequest,
   makePutBodyRequest,
-  ServerInfo,
-  setAccessTokensToServers,
-  uploadVideo
-} from '../../../../shared/extra-utils'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
+  PeerTubeServer,
+  setAccessTokensToServers
+} from '@shared/extra-utils'
+import { HttpStatusCode } from '@shared/models'
 
 describe('Test videos history API validator', function () {
   const myHistoryPath = '/api/v1/users/me/history/videos'
   const myHistoryRemove = myHistoryPath + '/remove'
   let watchingPath: string
-  let server: ServerInfo
+  let server: PeerTubeServer
 
   // ---------------------------------------------------------------
 
   before(async function () {
     this.timeout(30000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
 
     await setAccessTokensToServers([ server ])
 
-    const res = await uploadVideo(server.url, server.accessToken, {})
-    const videoUUID = res.body.video.uuid
-
-    watchingPath = '/api/v1/videos/' + videoUUID + '/watching'
+    const { uuid } = await server.videos.upload()
+    watchingPath = '/api/v1/videos/' + uuid + '/watching'
   })
 
   describe('When notifying a user is watching a video', function () {
 
     it('Should fail with an unauthenticated user', async function () {
       const fields = { currentTime: 5 }
-      await makePutBodyRequest({ url: server.url, path: watchingPath, fields, statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401 })
+      await makePutBodyRequest({ url: server.url, path: watchingPath, fields, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail with an incorrect video id', async function () {
@@ -51,7 +48,7 @@ describe('Test videos history API validator', function () {
         path,
         fields,
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
@@ -64,7 +61,7 @@ describe('Test videos history API validator', function () {
         path,
         fields,
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+        expectedStatus: HttpStatusCode.NOT_FOUND_404
       })
     })
 
@@ -75,7 +72,7 @@ describe('Test videos history API validator', function () {
         path: watchingPath,
         fields,
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
@@ -87,7 +84,7 @@ describe('Test videos history API validator', function () {
         path: watchingPath,
         fields,
         token: server.accessToken,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
   })
@@ -102,17 +99,17 @@ describe('Test videos history API validator', function () {
     })
 
     it('Should fail with an unauthenticated user', async function () {
-      await makeGetRequest({ url: server.url, path: myHistoryPath, statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401 })
+      await makeGetRequest({ url: server.url, path: myHistoryPath, expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should succeed with the correct params', async function () {
-      await makeGetRequest({ url: server.url, token: server.accessToken, path: myHistoryPath, statusCodeExpected: HttpStatusCode.OK_200 })
+      await makeGetRequest({ url: server.url, token: server.accessToken, path: myHistoryPath, expectedStatus: HttpStatusCode.OK_200 })
     })
   })
 
   describe('When removing user videos history', function () {
     it('Should fail with an unauthenticated user', async function () {
-      await makePostBodyRequest({ url: server.url, path: myHistoryPath + '/remove', statusCodeExpected: HttpStatusCode.UNAUTHORIZED_401 })
+      await makePostBodyRequest({ url: server.url, path: myHistoryPath + '/remove', expectedStatus: HttpStatusCode.UNAUTHORIZED_401 })
     })
 
     it('Should fail with a bad beforeDate parameter', async function () {
@@ -122,7 +119,7 @@ describe('Test videos history API validator', function () {
         token: server.accessToken,
         path: myHistoryRemove,
         fields: body,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
@@ -133,7 +130,7 @@ describe('Test videos history API validator', function () {
         token: server.accessToken,
         path: myHistoryRemove,
         fields: body,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
 
@@ -142,7 +139,7 @@ describe('Test videos history API validator', function () {
         url: server.url,
         token: server.accessToken,
         path: myHistoryRemove,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
   })
diff --git a/server/tests/api/check-params/videos-overviews.ts b/server/tests/api/check-params/videos-overviews.ts
index 69d7fc471..c2139d74b 100644
--- a/server/tests/api/check-params/videos-overviews.ts
+++ b/server/tests/api/check-params/videos-overviews.ts
@@ -1,29 +1,28 @@
 /* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
 
 import 'mocha'
-import { cleanupTests, flushAndRunServer, ServerInfo } from '../../../../shared/extra-utils'
-import { getVideosOverview } from '@shared/extra-utils/overviews/overviews'
+import { cleanupTests, createSingleServer, PeerTubeServer } from '@shared/extra-utils'
 
 describe('Test videos overview', function () {
-  let server: ServerInfo
+  let server: PeerTubeServer
 
   // ---------------------------------------------------------------
 
   before(async function () {
     this.timeout(30000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
   })
 
   describe('When getting videos overview', function () {
 
     it('Should fail with a bad pagination', async function () {
-      await getVideosOverview(server.url, 0, 400)
-      await getVideosOverview(server.url, 100, 400)
+      await server.overviews.getVideos({ page: 0, expectedStatus: 400 })
+      await server.overviews.getVideos({ page: 100, expectedStatus: 400 })
     })
 
     it('Should succeed with a good pagination', async function () {
-      await getVideosOverview(server.url, 1)
+      await server.overviews.getVideos({ page: 1 })
     })
   })
 
diff --git a/server/tests/api/check-params/videos.ts b/server/tests/api/check-params/videos.ts
index 4d7a9a23b..e11ca0c82 100644
--- a/server/tests/api/check-params/videos.ts
+++ b/server/tests/api/check-params/videos.ts
@@ -5,39 +5,28 @@ import * as chai from 'chai'
 import { omit } from 'lodash'
 import { join } from 'path'
 import { randomInt } from '@shared/core-utils'
-import { PeerTubeProblemDocument, VideoCreateResult } from '@shared/models'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
 import {
+  checkBadCountPagination,
+  checkBadSortPagination,
+  checkBadStartPagination,
   checkUploadVideoParam,
   cleanupTests,
-  createUser,
-  flushAndRunServer,
-  getMyUserInformation,
-  getVideo,
-  getVideosList,
-  immutableAssign,
+  createSingleServer,
   makeDeleteRequest,
   makeGetRequest,
   makePutBodyRequest,
   makeUploadRequest,
-  removeVideo,
+  PeerTubeServer,
   root,
-  ServerInfo,
-  setAccessTokensToServers,
-  userLogin
-} from '../../../../shared/extra-utils'
-import {
-  checkBadCountPagination,
-  checkBadSortPagination,
-  checkBadStartPagination
-} from '../../../../shared/extra-utils/requests/check-api-params'
-import { VideoPrivacy } from '../../../../shared/models/videos/video-privacy.enum'
+  setAccessTokensToServers
+} from '@shared/extra-utils'
+import { HttpStatusCode, PeerTubeProblemDocument, VideoCreateResult, VideoPrivacy } from '@shared/models'
 
 const expect = chai.expect
 
 describe('Test videos API validator', function () {
   const path = '/api/v1/videos/'
-  let server: ServerInfo
+  let server: PeerTubeServer
   let userAccessToken = ''
   let accountName: string
   let channelId: number
@@ -49,20 +38,20 @@ describe('Test videos API validator', function () {
   before(async function () {
     this.timeout(30000)
 
-    server = await flushAndRunServer(1)
+    server = await createSingleServer(1)
 
     await setAccessTokensToServers([ server ])
 
     const username = 'user1'
     const password = 'my super password'
-    await createUser({ url: server.url, accessToken: server.accessToken, username: username, password: password })
-    userAccessToken = await userLogin(server, { username, password })
+    await server.users.create({ username: username, password: password })
+    userAccessToken = await server.login.getAccessToken({ username, password })
 
     {
-      const res = await getMyUserInformation(server.url, server.accessToken)
-      channelId = res.body.videoChannels[0].id
-      channelName = res.body.videoChannels[0].name
-      accountName = res.body.account.name + '@' + res.body.account.host
+      const body = await server.users.getMyInfo()
+      channelId = body.videoChannels[0].id
+      channelName = body.videoChannels[0].name
+      accountName = body.account.name + '@' + body.account.host
     }
   })
 
@@ -80,11 +69,11 @@ describe('Test videos API validator', function () {
     })
 
     it('Should fail with a bad skipVideos query', async function () {
-      await makeGetRequest({ url: server.url, path, statusCodeExpected: HttpStatusCode.OK_200, query: { skipCount: 'toto' } })
+      await makeGetRequest({ url: server.url, path, expectedStatus: HttpStatusCode.OK_200, query: { skipCount: 'toto' } })
     })
 
     it('Should success with the correct parameters', async function () {
-      await makeGetRequest({ url: server.url, path, statusCodeExpected: HttpStatusCode.OK_200, query: { skipCount: false } })
+      await makeGetRequest({ url: server.url, path, expectedStatus: HttpStatusCode.OK_200, query: { skipCount: false } })
     })
   })
 
@@ -94,7 +83,7 @@ describe('Test videos API validator', function () {
       await makeGetRequest({
         url: server.url,
         path: join(path, 'search'),
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
@@ -111,7 +100,7 @@ describe('Test videos API validator', function () {
     })
 
     it('Should success with the correct parameters', async function () {
-      await makeGetRequest({ url: server.url, path, statusCodeExpected: HttpStatusCode.OK_200 })
+      await makeGetRequest({ url: server.url, path, expectedStatus: HttpStatusCode.OK_200 })
     })
   })
 
@@ -131,7 +120,7 @@ describe('Test videos API validator', function () {
     })
 
     it('Should success with the correct parameters', async function () {
-      await makeGetRequest({ url: server.url, token: server.accessToken, path, statusCodeExpected: HttpStatusCode.OK_200 })
+      await makeGetRequest({ url: server.url, token: server.accessToken, path, expectedStatus: HttpStatusCode.OK_200 })
     })
   })
 
@@ -155,7 +144,7 @@ describe('Test videos API validator', function () {
     })
 
     it('Should success with the correct parameters', async function () {
-      await makeGetRequest({ url: server.url, path, statusCodeExpected: HttpStatusCode.OK_200 })
+      await makeGetRequest({ url: server.url, path, expectedStatus: HttpStatusCode.OK_200 })
     })
   })
 
@@ -179,7 +168,7 @@ describe('Test videos API validator', function () {
     })
 
     it('Should success with the correct parameters', async function () {
-      await makeGetRequest({ url: server.url, path, statusCodeExpected: HttpStatusCode.OK_200 })
+      await makeGetRequest({ url: server.url, path, expectedStatus: HttpStatusCode.OK_200 })
     })
   })
 
@@ -214,70 +203,70 @@ describe('Test videos API validator', function () {
       it('Should fail with nothing', async function () {
         const fields = {}
         const attaches = {}
-        await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
+        await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
       })
 
       it('Should fail without name', async function () {
         const fields = omit(baseCorrectParams, 'name')
         const attaches = baseCorrectAttaches
 
-        await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
+        await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
       })
 
       it('Should fail with a long name', async function () {
-        const fields = immutableAssign(baseCorrectParams, { name: 'super'.repeat(65) })
+        const fields = { ...baseCorrectParams, name: 'super'.repeat(65) }
         const attaches = baseCorrectAttaches
 
-        await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
+        await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
       })
 
       it('Should fail with a bad category', async function () {
-        const fields = immutableAssign(baseCorrectParams, { category: 125 })
+        const fields = { ...baseCorrectParams, category: 125 }
         const attaches = baseCorrectAttaches
 
-        await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
+        await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
       })
 
       it('Should fail with a bad licence', async function () {
-        const fields = immutableAssign(baseCorrectParams, { licence: 125 })
+        const fields = { ...baseCorrectParams, licence: 125 }
         const attaches = baseCorrectAttaches
 
-        await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
+        await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
       })
 
       it('Should fail with a bad language', async function () {
-        const fields = immutableAssign(baseCorrectParams, { language: 'a'.repeat(15) })
+        const fields = { ...baseCorrectParams, language: 'a'.repeat(15) }
         const attaches = baseCorrectAttaches
 
-        await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
+        await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
       })
 
       it('Should fail with a long description', async function () {
-        const fields = immutableAssign(baseCorrectParams, { description: 'super'.repeat(2500) })
+        const fields = { ...baseCorrectParams, description: 'super'.repeat(2500) }
         const attaches = baseCorrectAttaches
 
-        await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
+        await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
       })
 
       it('Should fail with a long support text', async function () {
-        const fields = immutableAssign(baseCorrectParams, { support: 'super'.repeat(201) })
+        const fields = { ...baseCorrectParams, support: 'super'.repeat(201) }
         const attaches = baseCorrectAttaches
 
-        await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
+        await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
       })
 
       it('Should fail without a channel', async function () {
         const fields = omit(baseCorrectParams, 'channelId')
         const attaches = baseCorrectAttaches
 
-        await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
+        await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
       })
 
       it('Should fail with a bad channel', async function () {
-        const fields = immutableAssign(baseCorrectParams, { channelId: 545454 })
+        const fields = { ...baseCorrectParams, channelId: 545454 }
         const attaches = baseCorrectAttaches
 
-        await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
+        await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
       })
 
       it('Should fail with another user channel', async function () {
@@ -285,69 +274,71 @@ describe('Test videos API validator', function () {
           username: 'fake' + randomInt(0, 1500),
           password: 'fake_password'
         }
-        await createUser({ url: server.url, accessToken: server.accessToken, username: user.username, password: user.password })
+        await server.users.create({ username: user.username, password: user.password })
 
-        const accessTokenUser = await userLogin(server, user)
-        const res = await getMyUserInformation(server.url, accessTokenUser)
-        const customChannelId = res.body.videoChannels[0].id
+        const accessTokenUser = await server.login.getAccessToken(user)
+        const { videoChannels } = await server.users.getMyInfo({ token: accessTokenUser })
+        const customChannelId = videoChannels[0].id
 
-        const fields = immutableAssign(baseCorrectParams, { channelId: customChannelId })
+        const fields = { ...baseCorrectParams, channelId: customChannelId }
         const attaches = baseCorrectAttaches
 
-        await checkUploadVideoParam(server.url, userAccessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
+        await checkUploadVideoParam(server, userAccessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
       })
 
       it('Should fail with too many tags', async function () {
-        const fields = immutableAssign(baseCorrectParams, { tags: [ 'tag1', 'tag2', 'tag3', 'tag4', 'tag5', 'tag6' ] })
+        const fields = { ...baseCorrectParams, tags: [ 'tag1', 'tag2', 'tag3', 'tag4', 'tag5', 'tag6' ] }
         const attaches = baseCorrectAttaches
 
-        await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
+        await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
       })
 
       it('Should fail with a tag length too low', async function () {
-        const fields = immutableAssign(baseCorrectParams, { tags: [ 'tag1', 't' ] })
+        const fields = { ...baseCorrectParams, tags: [ 'tag1', 't' ] }
         const attaches = baseCorrectAttaches
 
-        await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
+        await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
       })
 
       it('Should fail with a tag length too big', async function () {
-        const fields = immutableAssign(baseCorrectParams, { tags: [ 'tag1', 'my_super_tag_too_long_long_long_long_long_long' ] })
+        const fields = { ...baseCorrectParams, tags: [ 'tag1', 'my_super_tag_too_long_long_long_long_long_long' ] }
         const attaches = baseCorrectAttaches
 
-        await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
+        await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
       })
 
       it('Should fail with a bad schedule update (miss updateAt)', async function () {
-        const fields = immutableAssign(baseCorrectParams, { scheduleUpdate: { privacy: VideoPrivacy.PUBLIC } })
+        const fields = { ...baseCorrectParams, scheduleUpdate: { privacy: VideoPrivacy.PUBLIC } }
         const attaches = baseCorrectAttaches
 
-        await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
+        await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
       })
 
       it('Should fail with a bad schedule update (wrong updateAt)', async function () {
-        const fields = immutableAssign(baseCorrectParams, {
+        const fields = {
+          ...baseCorrectParams,
+
           scheduleUpdate: {
             privacy: VideoPrivacy.PUBLIC,
             updateAt: 'toto'
           }
-        })
+        }
         const attaches = baseCorrectAttaches
 
-        await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
+        await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
       })
 
       it('Should fail with a bad originally published at attribute', async function () {
-        const fields = immutableAssign(baseCorrectParams, { originallyPublishedAt: 'toto' })
+        const fields = { ...baseCorrectParams, originallyPublishedAt: 'toto' }
         const attaches = baseCorrectAttaches
 
-        await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
+        await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
       })
 
       it('Should fail without an input file', async function () {
         const fields = baseCorrectParams
         const attaches = {}
-        await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
+        await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
       })
 
       it('Should fail with an incorrect input file', async function () {
@@ -355,7 +346,7 @@ describe('Test videos API validator', function () {
         let attaches = { fixture: join(root(), 'server', 'tests', 'fixtures', 'video_short_fake.webm') }
 
         await checkUploadVideoParam(
-          server.url,
+          server,
           server.accessToken,
           { ...fields, ...attaches },
           HttpStatusCode.UNPROCESSABLE_ENTITY_422,
@@ -364,7 +355,7 @@ describe('Test videos API validator', function () {
 
         attaches = { fixture: join(root(), 'server', 'tests', 'fixtures', 'video_short.mkv') }
         await checkUploadVideoParam(
-          server.url,
+          server,
           server.accessToken,
           { ...fields, ...attaches },
           HttpStatusCode.UNSUPPORTED_MEDIA_TYPE_415,
@@ -379,7 +370,7 @@ describe('Test videos API validator', function () {
           fixture: join(root(), 'server', 'tests', 'fixtures', 'video_short.mp4')
         }
 
-        await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
+        await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
       })
 
       it('Should fail with a big thumbnail file', async function () {
@@ -389,7 +380,7 @@ describe('Test videos API validator', function () {
           fixture: join(root(), 'server', 'tests', 'fixtures', 'video_short.mp4')
         }
 
-        await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
+        await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
       })
 
       it('Should fail with an incorrect preview file', async function () {
@@ -399,7 +390,7 @@ describe('Test videos API validator', function () {
           fixture: join(root(), 'server', 'tests', 'fixtures', 'video_short.mp4')
         }
 
-        await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
+        await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
       })
 
       it('Should fail with a big preview file', async function () {
@@ -409,17 +400,17 @@ describe('Test videos API validator', function () {
           fixture: join(root(), 'server', 'tests', 'fixtures', 'video_short.mp4')
         }
 
-        await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
+        await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.BAD_REQUEST_400, mode)
       })
 
       it('Should report the appropriate error', async function () {
-        const fields = immutableAssign(baseCorrectParams, { language: 'a'.repeat(15) })
+        const fields = { ...baseCorrectParams, language: 'a'.repeat(15) }
         const attaches = baseCorrectAttaches
 
         const attributes = { ...fields, ...attaches }
-        const res = await checkUploadVideoParam(server.url, server.accessToken, attributes, HttpStatusCode.BAD_REQUEST_400, mode)
+        const body = await checkUploadVideoParam(server, server.accessToken, attributes, HttpStatusCode.BAD_REQUEST_400, mode)
 
-        const error = res.body as PeerTubeProblemDocument
+        const error = body as unknown as PeerTubeProblemDocument
 
         if (mode === 'legacy') {
           expect(error.docs).to.equal('https://docs.joinpeertube.org/api-rest-reference.html#operation/uploadLegacy')
@@ -444,23 +435,27 @@ describe('Test videos API validator', function () {
 
         {
           const attaches = baseCorrectAttaches
-          await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.OK_200, mode)
+          await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.OK_200, mode)
         }
 
         {
-          const attaches = immutableAssign(baseCorrectAttaches, {
+          const attaches = {
+            ...baseCorrectAttaches,
+
             videofile: join(root(), 'server', 'tests', 'fixtures', 'video_short.mp4')
-          })
+          }
 
-          await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.OK_200, mode)
+          await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.OK_200, mode)
         }
 
         {
-          const attaches = immutableAssign(baseCorrectAttaches, {
+          const attaches = {
+            ...baseCorrectAttaches,
+
             videofile: join(root(), 'server', 'tests', 'fixtures', 'video_short.ogv')
-          })
+          }
 
-          await checkUploadVideoParam(server.url, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.OK_200, mode)
+          await checkUploadVideoParam(server, server.accessToken, { ...fields, ...attaches }, HttpStatusCode.OK_200, mode)
         }
       })
     }
@@ -489,8 +484,8 @@ describe('Test videos API validator', function () {
     }
 
     before(async function () {
-      const res = await getVideosList(server.url)
-      video = res.body.data[0]
+      const { data } = await server.videos.list()
+      video = data[0]
     })
 
     it('Should fail with nothing', async function () {
@@ -511,84 +506,84 @@ describe('Test videos API validator', function () {
         path: path + '4da6fde3-88f7-4d16-b119-108df5630b06',
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+        expectedStatus: HttpStatusCode.NOT_FOUND_404
       })
     })
 
     it('Should fail with a long name', async function () {
-      const fields = immutableAssign(baseCorrectParams, { name: 'super'.repeat(65) })
+      const fields = { ...baseCorrectParams, name: 'super'.repeat(65) }
 
       await makePutBodyRequest({ url: server.url, path: path + video.shortUUID, token: server.accessToken, fields })
     })
 
     it('Should fail with a bad category', async function () {
-      const fields = immutableAssign(baseCorrectParams, { category: 125 })
+      const fields = { ...baseCorrectParams, category: 125 }
 
       await makePutBodyRequest({ url: server.url, path: path + video.shortUUID, token: server.accessToken, fields })
     })
 
     it('Should fail with a bad licence', async function () {
-      const fields = immutableAssign(baseCorrectParams, { licence: 125 })
+      const fields = { ...baseCorrectParams, licence: 125 }
 
       await makePutBodyRequest({ url: server.url, path: path + video.shortUUID, token: server.accessToken, fields })
     })
 
     it('Should fail with a bad language', async function () {
-      const fields = immutableAssign(baseCorrectParams, { language: 'a'.repeat(15) })
+      const fields = { ...baseCorrectParams, language: 'a'.repeat(15) }
 
       await makePutBodyRequest({ url: server.url, path: path + video.shortUUID, token: server.accessToken, fields })
     })
 
     it('Should fail with a long description', async function () {
-      const fields = immutableAssign(baseCorrectParams, { description: 'super'.repeat(2500) })
+      const fields = { ...baseCorrectParams, description: 'super'.repeat(2500) }
 
       await makePutBodyRequest({ url: server.url, path: path + video.shortUUID, token: server.accessToken, fields })
     })
 
     it('Should fail with a long support text', async function () {
-      const fields = immutableAssign(baseCorrectParams, { support: 'super'.repeat(201) })
+      const fields = { ...baseCorrectParams, support: 'super'.repeat(201) }
 
       await makePutBodyRequest({ url: server.url, path: path + video.shortUUID, token: server.accessToken, fields })
     })
 
     it('Should fail with a bad channel', async function () {
-      const fields = immutableAssign(baseCorrectParams, { channelId: 545454 })
+      const fields = { ...baseCorrectParams, channelId: 545454 }
 
       await makePutBodyRequest({ url: server.url, path: path + video.shortUUID, token: server.accessToken, fields })
     })
 
     it('Should fail with too many tags', async function () {
-      const fields = immutableAssign(baseCorrectParams, { tags: [ 'tag1', 'tag2', 'tag3', 'tag4', 'tag5', 'tag6' ] })
+      const fields = { ...baseCorrectParams, tags: [ 'tag1', 'tag2', 'tag3', 'tag4', 'tag5', 'tag6' ] }
 
       await makePutBodyRequest({ url: server.url, path: path + video.shortUUID, token: server.accessToken, fields })
     })
 
     it('Should fail with a tag length too low', async function () {
-      const fields = immutableAssign(baseCorrectParams, { tags: [ 'tag1', 't' ] })
+      const fields = { ...baseCorrectParams, tags: [ 'tag1', 't' ] }
 
       await makePutBodyRequest({ url: server.url, path: path + video.shortUUID, token: server.accessToken, fields })
     })
 
     it('Should fail with a tag length too big', async function () {
-      const fields = immutableAssign(baseCorrectParams, { tags: [ 'tag1', 'my_super_tag_too_long_long_long_long_long_long' ] })
+      const fields = { ...baseCorrectParams, tags: [ 'tag1', 'my_super_tag_too_long_long_long_long_long_long' ] }
 
       await makePutBodyRequest({ url: server.url, path: path + video.shortUUID, token: server.accessToken, fields })
     })
 
     it('Should fail with a bad schedule update (miss updateAt)', async function () {
-      const fields = immutableAssign(baseCorrectParams, { scheduleUpdate: { privacy: VideoPrivacy.PUBLIC } })
+      const fields = { ...baseCorrectParams, scheduleUpdate: { privacy: VideoPrivacy.PUBLIC } }
 
       await makePutBodyRequest({ url: server.url, path: path + video.shortUUID, token: server.accessToken, fields })
     })
 
     it('Should fail with a bad schedule update (wrong updateAt)', async function () {
-      const fields = immutableAssign(baseCorrectParams, { scheduleUpdate: { updateAt: 'toto', privacy: VideoPrivacy.PUBLIC } })
+      const fields = { ...baseCorrectParams, scheduleUpdate: { updateAt: 'toto', privacy: VideoPrivacy.PUBLIC } }
 
       await makePutBodyRequest({ url: server.url, path: path + video.shortUUID, token: server.accessToken, fields })
     })
 
     it('Should fail with a bad originally published at param', async function () {
-      const fields = immutableAssign(baseCorrectParams, { originallyPublishedAt: 'toto' })
+      const fields = { ...baseCorrectParams, originallyPublishedAt: 'toto' }
 
       await makePutBodyRequest({ url: server.url, path: path + video.shortUUID, token: server.accessToken, fields })
     })
@@ -665,14 +660,14 @@ describe('Test videos API validator', function () {
         path: path + video.shortUUID,
         token: userAccessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.FORBIDDEN_403
+        expectedStatus: HttpStatusCode.FORBIDDEN_403
       })
     })
 
     it('Should fail with a video of another server')
 
     it('Shoud report the appropriate error', async function () {
-      const fields = immutableAssign(baseCorrectParams, { licence: 125 })
+      const fields = { ...baseCorrectParams, licence: 125 }
 
       const res = await makePutBodyRequest({ url: server.url, path: path + video.shortUUID, token: server.accessToken, fields })
       const error = res.body as PeerTubeProblemDocument
@@ -697,7 +692,7 @@ describe('Test videos API validator', function () {
         path: path + video.shortUUID,
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
   })
@@ -707,7 +702,7 @@ describe('Test videos API validator', function () {
       const res = await makeGetRequest({
         url: server.url,
         path,
-        statusCodeExpected: HttpStatusCode.OK_200
+        expectedStatus: HttpStatusCode.OK_200
       })
 
       expect(res.body.data).to.be.an('array')
@@ -715,16 +710,16 @@ describe('Test videos API validator', function () {
     })
 
     it('Should fail without a correct uuid', async function () {
-      await getVideo(server.url, 'coucou', HttpStatusCode.BAD_REQUEST_400)
+      await server.videos.get({ id: 'coucou', expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
     })
 
     it('Should return 404 with an incorrect video', async function () {
-      await getVideo(server.url, '4da6fde3-88f7-4d16-b119-108df5630b06', HttpStatusCode.NOT_FOUND_404)
+      await server.videos.get({ id: '4da6fde3-88f7-4d16-b119-108df5630b06', expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
 
     it('Shoud report the appropriate error', async function () {
-      const res = await getVideo(server.url, 'hi', HttpStatusCode.BAD_REQUEST_400)
-      const error = res.body as PeerTubeProblemDocument
+      const body = await server.videos.get({ id: 'hi', expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
+      const error = body as unknown as PeerTubeProblemDocument
 
       expect(error.docs).to.equal('https://docs.joinpeertube.org/api-rest-reference.html#operation/getVideo')
 
@@ -739,16 +734,16 @@ describe('Test videos API validator', function () {
     })
 
     it('Should succeed with the correct parameters', async function () {
-      await getVideo(server.url, video.shortUUID)
+      await server.videos.get({ id: video.shortUUID })
     })
   })
 
   describe('When rating a video', function () {
-    let videoId
+    let videoId: number
 
     before(async function () {
-      const res = await getVideosList(server.url)
-      videoId = res.body.data[0].id
+      const { data } = await server.videos.list()
+      videoId = data[0].id
     })
 
     it('Should fail without a valid uuid', async function () {
@@ -767,7 +762,7 @@ describe('Test videos API validator', function () {
         path: path + '4da6fde3-88f7-4d16-b119-108df5630b06/rate',
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.NOT_FOUND_404
+        expectedStatus: HttpStatusCode.NOT_FOUND_404
       })
     })
 
@@ -787,7 +782,7 @@ describe('Test videos API validator', function () {
         path: path + videoId + '/rate',
         token: server.accessToken,
         fields,
-        statusCodeExpected: HttpStatusCode.NO_CONTENT_204
+        expectedStatus: HttpStatusCode.NO_CONTENT_204
       })
     })
   })
@@ -797,27 +792,27 @@ describe('Test videos API validator', function () {
       await makeDeleteRequest({
         url: server.url,
         path,
-        statusCodeExpected: HttpStatusCode.BAD_REQUEST_400
+        expectedStatus: HttpStatusCode.BAD_REQUEST_400
       })
     })
 
     it('Should fail without a correct uuid', async function () {
-      await removeVideo(server.url, server.accessToken, 'hello', HttpStatusCode.BAD_REQUEST_400)
+      await server.videos.remove({ id: 'hello', expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
     })
 
     it('Should fail with a video which does not exist', async function () {
-      await removeVideo(server.url, server.accessToken, '4da6fde3-88f7-4d16-b119-108df5630b06', HttpStatusCode.NOT_FOUND_404)
+      await server.videos.remove({ id: '4da6fde3-88f7-4d16-b119-108df5630b06', expectedStatus: HttpStatusCode.NOT_FOUND_404 })
     })
 
     it('Should fail with a video of another user without the appropriate right', async function () {
-      await removeVideo(server.url, userAccessToken, video.uuid, HttpStatusCode.FORBIDDEN_403)
+      await server.videos.remove({ token: userAccessToken, id: video.uuid, expectedStatus: HttpStatusCode.FORBIDDEN_403 })
     })
 
     it('Should fail with a video of another server')
 
     it('Shoud report the appropriate error', async function () {
-      const res = await removeVideo(server.url, server.accessToken, 'hello', HttpStatusCode.BAD_REQUEST_400)
-      const error = res.body as PeerTubeProblemDocument
+      const body = await server.videos.remove({ id: 'hello', expectedStatus: HttpStatusCode.BAD_REQUEST_400 })
+      const error = body as PeerTubeProblemDocument
 
       expect(error.docs).to.equal('https://docs.joinpeertube.org/api-rest-reference.html#operation/delVideo')
 
@@ -832,7 +827,7 @@ describe('Test videos API validator', function () {
     })
 
     it('Should succeed with the correct parameters', async function () {
-      await removeVideo(server.url, server.accessToken, video.uuid)
+      await server.videos.remove({ id: video.uuid })
     })
   })