10 files changed, 178 insertions, 178 deletions

diff --git a/server/tests/api/check-params/config.ts b/server/tests/api/check-params/config.ts
index 9549070ef..291de93ea 100644
--- a/server/tests/api/check-params/config.ts
+++ b/server/tests/api/check-params/config.ts
@@ -1,22 +1,20 @@
 /* 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 { HttpStatusCode } from '@shared/core-utils'
 import {
   cleanupTests,
   createUser,
   flushAndRunServer,
-  immutableAssign,
   makeDeleteRequest,
   makeGetRequest,
   makePutBodyRequest,
   ServerInfo,
   setAccessTokensToServers,
   userLogin
-} from '../../../../shared/extra-utils'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
+} from '@shared/extra-utils'
+import { CustomConfig } from '@shared/models'
 
 describe('Test config API validators', function () {
   const path = '/api/v1/config/custom'
@@ -265,11 +263,13 @@ describe('Test config API validators', function () {
     })
 
     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,
@@ -282,13 +282,15 @@ describe('Test config API validators', function () {
 
     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,
@@ -300,7 +302,9 @@ describe('Test config API validators', function () {
     })
 
     it('Should fail with a disabled webtorrent & hls transcoding', async function () {
-      const newUpdateParams = immutableAssign(updateParams, {
+      const newUpdateParams = {
+        ...updateParams,
+
         transcoding: {
           hls: {
             enabled: false
@@ -309,7 +313,7 @@ describe('Test config API validators', function () {
             enabled: false
           }
         }
-      })
+      }
 
       await makePutBodyRequest({
         url: server.url,
diff --git a/server/tests/api/check-params/live.ts b/server/tests/api/check-params/live.ts
index d851d258d..394967285 100644
--- a/server/tests/api/check-params/live.ts
+++ b/server/tests/api/check-params/live.ts
@@ -10,7 +10,6 @@ import {
   createUser,
   flushAndRunServer,
   getMyUserInformation,
-  immutableAssign,
   LiveCommand,
   makePostBodyRequest,
   makeUploadRequest,
@@ -97,37 +96,37 @@ 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 })
     })
@@ -139,7 +138,7 @@ 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 })
     })
@@ -155,25 +154,25 @@ describe('Test video lives API validator', function () {
       const res = await getMyUserInformation(server.url, accessTokenUser)
       const customChannelId = res.body.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 })
     })
@@ -215,7 +214,7 @@ 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 })
     })
@@ -253,7 +252,7 @@ describe('Test video lives API validator', function () {
     })
 
     it('Should forbid to save replay if not enabled by the admin', async function () {
-      const fields = immutableAssign(baseCorrectParams, { saveReplay: true })
+      const fields = { ...baseCorrectParams, saveReplay: true }
 
       await server.configCommand.updateCustomSubConfig({
         newConfig: {
@@ -274,7 +273,7 @@ describe('Test video lives API validator', function () {
     })
 
     it('Should allow to save replay if enabled by the admin', async function () {
-      const fields = immutableAssign(baseCorrectParams, { saveReplay: true })
+      const fields = { ...baseCorrectParams, saveReplay: true }
 
       await server.configCommand.updateCustomSubConfig({
         newConfig: {
diff --git a/server/tests/api/check-params/plugins.ts b/server/tests/api/check-params/plugins.ts
index d372221d0..8509b8ac5 100644
--- a/server/tests/api/check-params/plugins.ts
+++ b/server/tests/api/check-params/plugins.ts
@@ -9,7 +9,6 @@ import {
   cleanupTests,
   createUser,
   flushAndRunServer,
-  immutableAssign,
   makeGetRequest,
   makePostBodyRequest,
   makePutBodyRequest,
@@ -200,7 +199,7 @@ 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,
@@ -211,7 +210,7 @@ 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,
@@ -271,7 +270,7 @@ 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,
diff --git a/server/tests/api/check-params/search.ts b/server/tests/api/check-params/search.ts
index 4a2fc1197..7973c112f 100644
--- a/server/tests/api/check-params/search.ts
+++ b/server/tests/api/check-params/search.ts
@@ -8,7 +8,6 @@ import {
   checkBadStartPagination,
   cleanupTests,
   flushAndRunServer,
-  immutableAssign,
   makeGetRequest,
   ServerInfo,
   setAccessTokensToServers
@@ -63,78 +62,78 @@ describe('Test videos API validator', function () {
     })
 
     it('Should fail with an invalid category', async function () {
-      const customQuery1 = immutableAssign(query, { categoryOneOf: [ 'aa', 'b' ] })
+      const customQuery1 = { ...query, categoryOneOf: [ 'aa', 'b' ] }
       await makeGetRequest({ url: server.url, path, query: customQuery1, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
 
-      const customQuery2 = immutableAssign(query, { categoryOneOf: 'a' })
+      const customQuery2 = { ...query, categoryOneOf: 'a' }
       await makeGetRequest({ url: server.url, path, query: customQuery2, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
     })
 
     it('Should succeed with a valid category', async function () {
-      const customQuery1 = immutableAssign(query, { categoryOneOf: [ 1, 7 ] })
+      const customQuery1 = { ...query, categoryOneOf: [ 1, 7 ] }
       await makeGetRequest({ url: server.url, path, query: customQuery1, statusCodeExpected: HttpStatusCode.OK_200 })
 
-      const customQuery2 = immutableAssign(query, { categoryOneOf: 1 })
+      const customQuery2 = { ...query, categoryOneOf: 1 }
       await makeGetRequest({ url: server.url, path, query: customQuery2, statusCodeExpected: HttpStatusCode.OK_200 })
     })
 
     it('Should fail with an invalid licence', async function () {
-      const customQuery1 = immutableAssign(query, { licenceOneOf: [ 'aa', 'b' ] })
+      const customQuery1 = { ...query, licenceOneOf: [ 'aa', 'b' ] }
       await makeGetRequest({ url: server.url, path, query: customQuery1, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
 
-      const customQuery2 = immutableAssign(query, { licenceOneOf: 'a' })
+      const customQuery2 = { ...query, licenceOneOf: 'a' }
       await makeGetRequest({ url: server.url, path, query: customQuery2, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
     })
 
     it('Should succeed with a valid licence', async function () {
-      const customQuery1 = immutableAssign(query, { licenceOneOf: [ 1, 2 ] })
+      const customQuery1 = { ...query, licenceOneOf: [ 1, 2 ] }
       await makeGetRequest({ url: server.url, path, query: customQuery1, statusCodeExpected: HttpStatusCode.OK_200 })
 
-      const customQuery2 = immutableAssign(query, { licenceOneOf: 1 })
+      const customQuery2 = { ...query, licenceOneOf: 1 }
       await makeGetRequest({ url: server.url, path, query: customQuery2, statusCodeExpected: HttpStatusCode.OK_200 })
     })
 
     it('Should succeed with a valid language', async function () {
-      const customQuery1 = immutableAssign(query, { languageOneOf: [ 'fr', 'en' ] })
+      const customQuery1 = { ...query, languageOneOf: [ 'fr', 'en' ] }
       await makeGetRequest({ url: server.url, path, query: customQuery1, statusCodeExpected: HttpStatusCode.OK_200 })
 
-      const customQuery2 = immutableAssign(query, { languageOneOf: 'fr' })
+      const customQuery2 = { ...query, languageOneOf: 'fr' }
       await makeGetRequest({ url: server.url, path, query: customQuery2, statusCodeExpected: HttpStatusCode.OK_200 })
     })
 
     it('Should succeed with valid tags', async function () {
-      const customQuery1 = immutableAssign(query, { tagsOneOf: [ 'tag1', 'tag2' ] })
+      const customQuery1 = { ...query, tagsOneOf: [ 'tag1', 'tag2' ] }
       await makeGetRequest({ url: server.url, path, query: customQuery1, statusCodeExpected: HttpStatusCode.OK_200 })
 
-      const customQuery2 = immutableAssign(query, { tagsOneOf: 'tag1' })
+      const customQuery2 = { ...query, tagsOneOf: 'tag1' }
       await makeGetRequest({ url: server.url, path, query: customQuery2, statusCodeExpected: HttpStatusCode.OK_200 })
 
-      const customQuery3 = immutableAssign(query, { tagsAllOf: [ 'tag1', 'tag2' ] })
+      const customQuery3 = { ...query, tagsAllOf: [ 'tag1', 'tag2' ] }
       await makeGetRequest({ url: server.url, path, query: customQuery3, statusCodeExpected: HttpStatusCode.OK_200 })
 
-      const customQuery4 = immutableAssign(query, { tagsAllOf: 'tag1' })
+      const customQuery4 = { ...query, tagsAllOf: 'tag1' }
       await makeGetRequest({ url: server.url, path, query: customQuery4, statusCodeExpected: HttpStatusCode.OK_200 })
     })
 
     it('Should fail with invalid durations', async function () {
-      const customQuery1 = immutableAssign(query, { durationMin: 'hello' })
+      const customQuery1 = { ...query, durationMin: 'hello' }
       await makeGetRequest({ url: server.url, path, query: customQuery1, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
 
-      const customQuery2 = immutableAssign(query, { durationMax: 'hello' })
+      const customQuery2 = { ...query, durationMax: 'hello' }
       await makeGetRequest({ url: server.url, path, query: customQuery2, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
     })
 
     it('Should fail with invalid dates', async function () {
-      const customQuery1 = immutableAssign(query, { startDate: 'hello' })
+      const customQuery1 = { ...query, startDate: 'hello' }
       await makeGetRequest({ url: server.url, path, query: customQuery1, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
 
-      const customQuery2 = immutableAssign(query, { endDate: 'hello' })
+      const customQuery2 = { ...query, endDate: 'hello' }
       await makeGetRequest({ url: server.url, path, query: customQuery2, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
 
-      const customQuery3 = immutableAssign(query, { originallyPublishedStartDate: 'hello' })
+      const customQuery3 = { ...query, originallyPublishedStartDate: 'hello' }
       await makeGetRequest({ url: server.url, path, query: customQuery3, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
 
-      const customQuery4 = immutableAssign(query, { originallyPublishedEndDate: 'hello' })
+      const customQuery4 = { ...query, originallyPublishedEndDate: 'hello' }
       await makeGetRequest({ url: server.url, path, query: customQuery4, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
     })
   })
@@ -201,41 +200,41 @@ describe('Test videos API validator', function () {
 
       for (const path of paths) {
         {
-          const customQuery = immutableAssign(query, { searchTarget: 'hello' })
+          const customQuery = { ...query, searchTarget: 'hello' }
           await makeGetRequest({ url: server.url, path, query: customQuery, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
         }
 
         {
-          const customQuery = immutableAssign(query, { searchTarget: undefined })
+          const customQuery = { ...query, searchTarget: undefined }
           await makeGetRequest({ url: server.url, path, query: customQuery, statusCodeExpected: HttpStatusCode.OK_200 })
         }
 
         {
-          const customQuery = immutableAssign(query, { searchTarget: 'local' })
+          const customQuery = { ...query, searchTarget: 'local' }
           await makeGetRequest({ url: server.url, path, query: customQuery, statusCodeExpected: HttpStatusCode.OK_200 })
         }
 
         {
-          const customQuery = immutableAssign(query, { searchTarget: 'search-index' })
+          const customQuery = { ...query, searchTarget: 'search-index' }
           await makeGetRequest({ url: server.url, path, query: customQuery, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
         }
 
         await updateSearchIndex(server, true, true)
 
         {
-          const customQuery = immutableAssign(query, { searchTarget: 'local' })
+          const customQuery = { ...query, searchTarget: 'local' }
           await makeGetRequest({ url: server.url, path, query: customQuery, statusCodeExpected: HttpStatusCode.BAD_REQUEST_400 })
         }
 
         {
-          const customQuery = immutableAssign(query, { searchTarget: 'search-index' })
+          const customQuery = { ...query, searchTarget: 'search-index' }
           await makeGetRequest({ url: server.url, path, query: customQuery, statusCodeExpected: HttpStatusCode.OK_200 })
         }
 
         await updateSearchIndex(server, true, false)
 
         {
-          const customQuery = immutableAssign(query, { searchTarget: 'local' })
+          const customQuery = { ...query, searchTarget: 'local' }
           await makeGetRequest({ url: server.url, path, query: customQuery, statusCodeExpected: HttpStatusCode.OK_200 })
         }
 
diff --git a/server/tests/api/check-params/user-notifications.ts b/server/tests/api/check-params/user-notifications.ts
index 26d4423f9..913eca366 100644
--- a/server/tests/api/check-params/user-notifications.ts
+++ b/server/tests/api/check-params/user-notifications.ts
@@ -2,25 +2,21 @@
 
 import 'mocha'
 import { io } from 'socket.io-client'
-
+import { HttpStatusCode } from '@shared/core-utils'
 import {
+  checkBadCountPagination,
+  checkBadSortPagination,
+  checkBadStartPagination,
   cleanupTests,
   flushAndRunServer,
-  immutableAssign,
   makeGetRequest,
   makePostBodyRequest,
   makePutBodyRequest,
   ServerInfo,
   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 { UserNotificationSetting, UserNotificationSettingValue } from '@shared/models'
 
 describe('Test user notifications API validators', function () {
   let server: ServerInfo
@@ -193,7 +189,7 @@ describe('Test user notifications API validators', function () {
 
     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,
@@ -205,7 +201,7 @@ describe('Test user notifications API validators', function () {
       }
 
       {
-        const fields = immutableAssign(correctFields, { newCommentOnMyVideo: 'toto' })
+        const fields = { ...correctFields, newCommentOnMyVideo: 'toto' }
 
         await makePutBodyRequest({
           url: server.url,
diff --git a/server/tests/api/check-params/users.ts b/server/tests/api/check-params/users.ts
index bffe29bce..fda7e9640 100644
--- a/server/tests/api/check-params/users.ts
+++ b/server/tests/api/check-params/users.ts
@@ -15,7 +15,6 @@ import {
   getMyUserVideoRating,
   getUserScopedTokens,
   getUsersList,
-  immutableAssign,
   killallServers,
   makeGetRequest,
   makePostBodyRequest,
@@ -181,25 +180,25 @@ 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 })
     })
@@ -211,25 +210,25 @@ 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 })
     })
@@ -239,19 +238,23 @@ describe('Test users API validators', function () {
 
       await killallServers([ server ])
 
-      const config = immutableAssign(overrideConfig, {
+      const config = {
+        ...overrideConfig,
+
         smtp: {
           hostname: 'localhost',
           port: emailPort
         }
-      })
+      }
       await reRunServer(server, config)
 
-      const fields = immutableAssign(baseCorrectParams, {
+      const fields = {
+        ...baseCorrectParams,
+
         password: '',
         username: 'create_password',
         email: 'create_password@example.com'
-      })
+      }
 
       await makePostBodyRequest({
         url: server.url,
@@ -263,7 +266,7 @@ describe('Test users API validators', function () {
     })
 
     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 })
     })
@@ -279,7 +282,7 @@ describe('Test users API validators', function () {
     })
 
     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,
@@ -291,7 +294,7 @@ describe('Test users API validators', function () {
     })
 
     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,
@@ -315,13 +318,13 @@ 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 })
     })
@@ -333,13 +336,13 @@ 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,
@@ -352,7 +355,7 @@ describe('Test users API validators', function () {
 
     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,
@@ -365,7 +368,7 @@ describe('Test users API validators', function () {
     })
 
     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,
@@ -937,19 +940,19 @@ 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 })
     })
@@ -961,25 +964,25 @@ 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: 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,
@@ -991,7 +994,7 @@ describe('Test users API validators', function () {
     })
 
     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,
@@ -1003,7 +1006,7 @@ describe('Test users API validators', function () {
     })
 
     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,
@@ -1015,26 +1018,26 @@ describe('Test users API validators', function () {
     })
 
     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 })
     })
@@ -1043,7 +1046,7 @@ describe('Test users API validators', function () {
       const attributes = { name: 'existing_channel', displayName: 'hello', description: 'super description' }
       await server.channelsCommand.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,
@@ -1055,7 +1058,7 @@ describe('Test users API validators', function () {
     })
 
     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,
diff --git a/server/tests/api/check-params/video-channels.ts b/server/tests/api/check-params/video-channels.ts
index d29346dc3..3b72d3796 100644
--- a/server/tests/api/check-params/video-channels.ts
+++ b/server/tests/api/check-params/video-channels.ts
@@ -3,14 +3,16 @@
 import 'mocha'
 import * as chai from 'chai'
 import { omit } from 'lodash'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
+import { HttpStatusCode } from '@shared/core-utils'
 import {
   buildAbsoluteFixturePath,
   ChannelsCommand,
+  checkBadCountPagination,
+  checkBadSortPagination,
+  checkBadStartPagination,
   cleanupTests,
   createUser,
   flushAndRunServer,
-  immutableAssign,
   makeGetRequest,
   makePostBodyRequest,
   makePutBodyRequest,
@@ -18,13 +20,8 @@ import {
   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'
+} from '@shared/extra-utils'
+import { VideoChannelUpdate } from '@shared/models'
 
 const expect = chai.expect
 
@@ -127,7 +124,7 @@ 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 })
     })
 
@@ -137,17 +134,17 @@ 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 })
     })
 
@@ -206,22 +203,22 @@ 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 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 })
     })
 
diff --git a/server/tests/api/check-params/video-imports.ts b/server/tests/api/check-params/video-imports.ts
index ea473191e..2cc124cc1 100644
--- a/server/tests/api/check-params/video-imports.ts
+++ b/server/tests/api/check-params/video-imports.ts
@@ -12,7 +12,6 @@ import {
   createUser,
   flushAndRunServer,
   getMyUserInformation,
-  immutableAssign,
   ImportsCommand,
   makeGetRequest,
   makePostBodyRequest,
@@ -108,43 +107,43 @@ describe('Test video imports API validator', function () {
     })
 
     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 })
     })
@@ -156,7 +155,7 @@ 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 })
     })
@@ -172,25 +171,25 @@ describe('Test video imports API validator', function () {
       const res = await getMyUserInformation(server.url, accessTokenUser)
       const customChannelId = res.body.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 })
     })
@@ -242,7 +241,7 @@ 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 })
     })
@@ -301,7 +300,7 @@ describe('Test video imports API validator', function () {
       })
 
       let fields = omit(baseCorrectParams, 'targetUrl')
-      fields = immutableAssign(fields, { magnetUri: ImportsCommand.getMagnetURI() })
+      fields = { ...fields, magnetUri: ImportsCommand.getMagnetURI() }
 
       await makePostBodyRequest({
         url: server.url,
diff --git a/server/tests/api/check-params/video-playlists.ts b/server/tests/api/check-params/video-playlists.ts
index 1c507a047..3799e73b6 100644
--- a/server/tests/api/check-params/video-playlists.ts
+++ b/server/tests/api/check-params/video-playlists.ts
@@ -1,6 +1,7 @@
 /* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
 
 import 'mocha'
+import { HttpStatusCode } from '@shared/core-utils'
 import {
   VideoPlaylistCreate,
   VideoPlaylistCreateResult,
@@ -10,7 +11,6 @@ import {
   VideoPlaylistReorder,
   VideoPlaylistType
 } from '@shared/models'
-import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
 import {
   checkBadCountPagination,
   checkBadSortPagination,
@@ -18,7 +18,6 @@ import {
   cleanupTests,
   flushAndRunServer,
   generateUserAccessToken,
-  immutableAssign,
   makeGetRequest,
   PlaylistsCommand,
   ServerInfo,
@@ -214,7 +213,7 @@ describe('Test video playlists API validator', function () {
       }
     }
     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 () {
diff --git a/server/tests/api/check-params/videos.ts b/server/tests/api/check-params/videos.ts
index 4d7a9a23b..6549063b1 100644
--- a/server/tests/api/check-params/videos.ts
+++ b/server/tests/api/check-params/videos.ts
@@ -15,7 +15,6 @@ import {
   getMyUserInformation,
   getVideo,
   getVideosList,
-  immutableAssign,
   makeDeleteRequest,
   makeGetRequest,
   makePutBodyRequest,
@@ -225,42 +224,42 @@ describe('Test videos 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) }
         const attaches = baseCorrectAttaches
 
         await checkUploadVideoParam(server.url, 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)
       })
 
       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)
       })
 
       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)
       })
 
       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)
       })
 
       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)
@@ -274,7 +273,7 @@ describe('Test videos API validator', function () {
       })
 
       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)
@@ -291,54 +290,56 @@ describe('Test videos API validator', function () {
         const res = await getMyUserInformation(server.url, accessTokenUser)
         const customChannelId = res.body.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)
       })
 
       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)
       })
 
       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)
       })
 
       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)
       })
 
       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)
       })
 
       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)
       })
 
       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)
@@ -413,7 +414,7 @@ describe('Test videos API validator', function () {
       })
 
       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 }
@@ -448,17 +449,21 @@ describe('Test videos API validator', function () {
         }
 
         {
-          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)
         }
 
         {
-          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)
         }
@@ -516,79 +521,79 @@ describe('Test videos 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 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 })
     })
@@ -672,7 +677,7 @@ describe('Test videos API validator', function () {
     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