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diff --git a/packages/tests/src/shared/notifications.ts b/packages/tests/src/shared/notifications.ts
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+/* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
+
+import {
+  AbuseState,
+  AbuseStateType,
+  PluginType_Type,
+  UserNotification,
+  UserNotificationSetting,
+  UserNotificationSettingValue,
+  UserNotificationType
+} from '@peertube/peertube-models'
+import {
+  ConfigCommand,
+  PeerTubeServer,
+  createMultipleServers,
+  doubleFollow,
+  setAccessTokensToServers,
+  setDefaultAccountAvatar,
+  setDefaultChannelAvatar,
+  setDefaultVideoChannel
+} from '@peertube/peertube-server-commands'
+import { expect } from 'chai'
+import { inspect } from 'util'
+import { MockSmtpServer } from './mock-servers/index.js'
+
+type CheckerBaseParams = {
+  server: PeerTubeServer
+  emails: any[]
+  socketNotifications: UserNotification[]
+  token: string
+  check?: { web: boolean, mail: boolean }
+}
+
+type CheckerType = 'presence' | 'absence'
+
+function getAllNotificationsSettings (): UserNotificationSetting {
+  return {
+    newVideoFromSubscription: UserNotificationSettingValue.WEB | UserNotificationSettingValue.EMAIL,
+    newCommentOnMyVideo: UserNotificationSettingValue.WEB | UserNotificationSettingValue.EMAIL,
+    abuseAsModerator: UserNotificationSettingValue.WEB | UserNotificationSettingValue.EMAIL,
+    videoAutoBlacklistAsModerator: UserNotificationSettingValue.WEB | UserNotificationSettingValue.EMAIL,
+    blacklistOnMyVideo: UserNotificationSettingValue.WEB | UserNotificationSettingValue.EMAIL,
+    myVideoImportFinished: UserNotificationSettingValue.WEB | UserNotificationSettingValue.EMAIL,
+    myVideoPublished: UserNotificationSettingValue.WEB | UserNotificationSettingValue.EMAIL,
+    commentMention: UserNotificationSettingValue.WEB | UserNotificationSettingValue.EMAIL,
+    newFollow: UserNotificationSettingValue.WEB | UserNotificationSettingValue.EMAIL,
+    newUserRegistration: UserNotificationSettingValue.WEB | UserNotificationSettingValue.EMAIL,
+    newInstanceFollower: UserNotificationSettingValue.WEB | UserNotificationSettingValue.EMAIL,
+    abuseNewMessage: UserNotificationSettingValue.WEB | UserNotificationSettingValue.EMAIL,
+    abuseStateChange: UserNotificationSettingValue.WEB | UserNotificationSettingValue.EMAIL,
+    autoInstanceFollowing: UserNotificationSettingValue.WEB | UserNotificationSettingValue.EMAIL,
+    newPeerTubeVersion: UserNotificationSettingValue.WEB | UserNotificationSettingValue.EMAIL,
+    myVideoStudioEditionFinished: UserNotificationSettingValue.WEB | UserNotificationSettingValue.EMAIL,
+    newPluginVersion: UserNotificationSettingValue.WEB | UserNotificationSettingValue.EMAIL
+  }
+}
+
+async function checkNewVideoFromSubscription (options: CheckerBaseParams & {
+  videoName: string
+  shortUUID: string
+  checkType: CheckerType
+}) {
+  const { videoName, shortUUID } = options
+  const notificationType = UserNotificationType.NEW_VIDEO_FROM_SUBSCRIPTION
+
+  function notificationChecker (notification: UserNotification, checkType: CheckerType) {
+    if (checkType === 'presence') {
+      expect(notification).to.not.be.undefined
+      expect(notification.type).to.equal(notificationType)
+
+      checkVideo(notification.video, videoName, shortUUID)
+      checkActor(notification.video.channel)
+    } else {
+      expect(notification).to.satisfy((n: UserNotification) => {
+        return n === undefined || n.type !== UserNotificationType.NEW_VIDEO_FROM_SUBSCRIPTION || n.video.name !== videoName
+      })
+    }
+  }
+
+  function emailNotificationFinder (email: object) {
+    const text = email['text']
+    return text.indexOf(shortUUID) !== -1 && text.indexOf('Your subscription') !== -1
+  }
+
+  await checkNotification({ ...options, notificationChecker, emailNotificationFinder })
+}
+
+async function checkVideoIsPublished (options: CheckerBaseParams & {
+  videoName: string
+  shortUUID: string
+  checkType: CheckerType
+}) {
+  const { videoName, shortUUID } = options
+  const notificationType = UserNotificationType.MY_VIDEO_PUBLISHED
+
+  function notificationChecker (notification: UserNotification, checkType: CheckerType) {
+    if (checkType === 'presence') {
+      expect(notification).to.not.be.undefined
+      expect(notification.type).to.equal(notificationType)
+
+      checkVideo(notification.video, videoName, shortUUID)
+      checkActor(notification.video.channel)
+    } else {
+      expect(notification.video).to.satisfy(v => v === undefined || v.name !== videoName)
+    }
+  }
+
+  function emailNotificationFinder (email: object) {
+    const text: string = email['text']
+    return text.includes(shortUUID) && text.includes('Your video')
+  }
+
+  await checkNotification({ ...options, notificationChecker, emailNotificationFinder })
+}
+
+async function checkVideoStudioEditionIsFinished (options: CheckerBaseParams & {
+  videoName: string
+  shortUUID: string
+  checkType: CheckerType
+}) {
+  const { videoName, shortUUID } = options
+  const notificationType = UserNotificationType.MY_VIDEO_STUDIO_EDITION_FINISHED
+
+  function notificationChecker (notification: UserNotification, checkType: CheckerType) {
+    if (checkType === 'presence') {
+      expect(notification).to.not.be.undefined
+      expect(notification.type).to.equal(notificationType)
+
+      checkVideo(notification.video, videoName, shortUUID)
+      checkActor(notification.video.channel)
+    } else {
+      expect(notification.video).to.satisfy(v => v === undefined || v.name !== videoName)
+    }
+  }
+
+  function emailNotificationFinder (email: object) {
+    const text: string = email['text']
+    return text.includes(shortUUID) && text.includes('Edition of your video')
+  }
+
+  await checkNotification({ ...options, notificationChecker, emailNotificationFinder })
+}
+
+async function checkMyVideoImportIsFinished (options: CheckerBaseParams & {
+  videoName: string
+  shortUUID: string
+  url: string
+  success: boolean
+  checkType: CheckerType
+}) {
+  const { videoName, shortUUID, url, success } = options
+
+  const notificationType = success ? UserNotificationType.MY_VIDEO_IMPORT_SUCCESS : UserNotificationType.MY_VIDEO_IMPORT_ERROR
+
+  function notificationChecker (notification: UserNotification, checkType: CheckerType) {
+    if (checkType === 'presence') {
+      expect(notification).to.not.be.undefined
+      expect(notification.type).to.equal(notificationType)
+
+      expect(notification.videoImport.targetUrl).to.equal(url)
+
+      if (success) checkVideo(notification.videoImport.video, videoName, shortUUID)
+    } else {
+      expect(notification.videoImport).to.satisfy(i => i === undefined || i.targetUrl !== url)
+    }
+  }
+
+  function emailNotificationFinder (email: object) {
+    const text: string = email['text']
+    const toFind = success ? ' finished' : ' error'
+
+    return text.includes(url) && text.includes(toFind)
+  }
+
+  await checkNotification({ ...options, notificationChecker, emailNotificationFinder })
+}
+
+// ---------------------------------------------------------------------------
+
+async function checkUserRegistered (options: CheckerBaseParams & {
+  username: string
+  checkType: CheckerType
+}) {
+  const { username } = options
+  const notificationType = UserNotificationType.NEW_USER_REGISTRATION
+
+  function notificationChecker (notification: UserNotification, checkType: CheckerType) {
+    if (checkType === 'presence') {
+      expect(notification).to.not.be.undefined
+      expect(notification.type).to.equal(notificationType)
+
+      checkActor(notification.account, { withAvatar: false })
+      expect(notification.account.name).to.equal(username)
+    } else {
+      expect(notification).to.satisfy(n => n.type !== notificationType || n.account.name !== username)
+    }
+  }
+
+  function emailNotificationFinder (email: object) {
+    const text: string = email['text']
+
+    return text.includes(' registered.') && text.includes(username)
+  }
+
+  await checkNotification({ ...options, notificationChecker, emailNotificationFinder })
+}
+
+async function checkRegistrationRequest (options: CheckerBaseParams & {
+  username: string
+  registrationReason: string
+  checkType: CheckerType
+}) {
+  const { username, registrationReason } = options
+  const notificationType = UserNotificationType.NEW_USER_REGISTRATION_REQUEST
+
+  function notificationChecker (notification: UserNotification, checkType: CheckerType) {
+    if (checkType === 'presence') {
+      expect(notification).to.not.be.undefined
+      expect(notification.type).to.equal(notificationType)
+
+      expect(notification.registration.username).to.equal(username)
+    } else {
+      expect(notification).to.satisfy(n => n.type !== notificationType || n.registration.username !== username)
+    }
+  }
+
+  function emailNotificationFinder (email: object) {
+    const text: string = email['text']
+
+    return text.includes(' wants to register ') && text.includes(username) && text.includes(registrationReason)
+  }
+
+  await checkNotification({ ...options, notificationChecker, emailNotificationFinder })
+}
+
+// ---------------------------------------------------------------------------
+
+async function checkNewActorFollow (options: CheckerBaseParams & {
+  followType: 'channel' | 'account'
+  followerName: string
+  followerDisplayName: string
+  followingDisplayName: string
+  checkType: CheckerType
+}) {
+  const { followType, followerName, followerDisplayName, followingDisplayName } = options
+  const notificationType = UserNotificationType.NEW_FOLLOW
+
+  function notificationChecker (notification: UserNotification, checkType: CheckerType) {
+    if (checkType === 'presence') {
+      expect(notification).to.not.be.undefined
+      expect(notification.type).to.equal(notificationType)
+
+      checkActor(notification.actorFollow.follower)
+      expect(notification.actorFollow.follower.displayName).to.equal(followerDisplayName)
+      expect(notification.actorFollow.follower.name).to.equal(followerName)
+      expect(notification.actorFollow.follower.host).to.not.be.undefined
+
+      const following = notification.actorFollow.following
+      expect(following.displayName).to.equal(followingDisplayName)
+      expect(following.type).to.equal(followType)
+    } else {
+      expect(notification).to.satisfy(n => {
+        return n.type !== notificationType ||
+          (n.actorFollow.follower.name !== followerName && n.actorFollow.following !== followingDisplayName)
+      })
+    }
+  }
+
+  function emailNotificationFinder (email: object) {
+    const text: string = email['text']
+
+    return text.includes(followType) && text.includes(followingDisplayName) && text.includes(followerDisplayName)
+  }
+
+  await checkNotification({ ...options, notificationChecker, emailNotificationFinder })
+}
+
+async function checkNewInstanceFollower (options: CheckerBaseParams & {
+  followerHost: string
+  checkType: CheckerType
+}) {
+  const { followerHost } = options
+  const notificationType = UserNotificationType.NEW_INSTANCE_FOLLOWER
+
+  function notificationChecker (notification: UserNotification, checkType: CheckerType) {
+    if (checkType === 'presence') {
+      expect(notification).to.not.be.undefined
+      expect(notification.type).to.equal(notificationType)
+
+      checkActor(notification.actorFollow.follower, { withAvatar: false })
+      expect(notification.actorFollow.follower.name).to.equal('peertube')
+      expect(notification.actorFollow.follower.host).to.equal(followerHost)
+
+      expect(notification.actorFollow.following.name).to.equal('peertube')
+    } else {
+      expect(notification).to.satisfy(n => {
+        return n.type !== notificationType || n.actorFollow.follower.host !== followerHost
+      })
+    }
+  }
+
+  function emailNotificationFinder (email: object) {
+    const text: string = email['text']
+
+    return text.includes('instance has a new follower') && text.includes(followerHost)
+  }
+
+  await checkNotification({ ...options, notificationChecker, emailNotificationFinder })
+}
+
+async function checkAutoInstanceFollowing (options: CheckerBaseParams & {
+  followerHost: string
+  followingHost: string
+  checkType: CheckerType
+}) {
+  const { followerHost, followingHost } = options
+  const notificationType = UserNotificationType.AUTO_INSTANCE_FOLLOWING
+
+  function notificationChecker (notification: UserNotification, checkType: CheckerType) {
+    if (checkType === 'presence') {
+      expect(notification).to.not.be.undefined
+      expect(notification.type).to.equal(notificationType)
+
+      const following = notification.actorFollow.following
+
+      checkActor(following, { withAvatar: false })
+      expect(following.name).to.equal('peertube')
+      expect(following.host).to.equal(followingHost)
+
+      expect(notification.actorFollow.follower.name).to.equal('peertube')
+      expect(notification.actorFollow.follower.host).to.equal(followerHost)
+    } else {
+      expect(notification).to.satisfy(n => {
+        return n.type !== notificationType || n.actorFollow.following.host !== followingHost
+      })
+    }
+  }
+
+  function emailNotificationFinder (email: object) {
+    const text: string = email['text']
+
+    return text.includes(' automatically followed a new instance') && text.includes(followingHost)
+  }
+
+  await checkNotification({ ...options, notificationChecker, emailNotificationFinder })
+}
+
+async function checkCommentMention (options: CheckerBaseParams & {
+  shortUUID: string
+  commentId: number
+  threadId: number
+  byAccountDisplayName: string
+  checkType: CheckerType
+}) {
+  const { shortUUID, commentId, threadId, byAccountDisplayName } = options
+  const notificationType = UserNotificationType.COMMENT_MENTION
+
+  function notificationChecker (notification: UserNotification, checkType: CheckerType) {
+    if (checkType === 'presence') {
+      expect(notification).to.not.be.undefined
+      expect(notification.type).to.equal(notificationType)
+
+      checkComment(notification.comment, commentId, threadId)
+      checkActor(notification.comment.account)
+      expect(notification.comment.account.displayName).to.equal(byAccountDisplayName)
+
+      checkVideo(notification.comment.video, undefined, shortUUID)
+    } else {
+      expect(notification).to.satisfy(n => n.type !== notificationType || n.comment.id !== commentId)
+    }
+  }
+
+  function emailNotificationFinder (email: object) {
+    const text: string = email['text']
+
+    return text.includes(' mentioned ') && text.includes(shortUUID) && text.includes(byAccountDisplayName)
+  }
+
+  await checkNotification({ ...options, notificationChecker, emailNotificationFinder })
+}
+
+let lastEmailCount = 0
+
+async function checkNewCommentOnMyVideo (options: CheckerBaseParams & {
+  shortUUID: string
+  commentId: number
+  threadId: number
+  checkType: CheckerType
+}) {
+  const { server, shortUUID, commentId, threadId, checkType, emails } = options
+  const notificationType = UserNotificationType.NEW_COMMENT_ON_MY_VIDEO
+
+  function notificationChecker (notification: UserNotification, checkType: CheckerType) {
+    if (checkType === 'presence') {
+      expect(notification).to.not.be.undefined
+      expect(notification.type).to.equal(notificationType)
+
+      checkComment(notification.comment, commentId, threadId)
+      checkActor(notification.comment.account)
+      checkVideo(notification.comment.video, undefined, shortUUID)
+    } else {
+      expect(notification).to.satisfy((n: UserNotification) => {
+        return n === undefined || n.comment === undefined || n.comment.id !== commentId
+      })
+    }
+  }
+
+  const commentUrl = `${server.url}/w/${shortUUID};threadId=${threadId}`
+
+  function emailNotificationFinder (email: object) {
+    return email['text'].indexOf(commentUrl) !== -1
+  }
+
+  await checkNotification({ ...options, notificationChecker, emailNotificationFinder })
+
+  if (checkType === 'presence') {
+    // We cannot detect email duplicates, so check we received another email
+    expect(emails).to.have.length.above(lastEmailCount)
+    lastEmailCount = emails.length
+  }
+}
+
+async function checkNewVideoAbuseForModerators (options: CheckerBaseParams & {
+  shortUUID: string
+  videoName: string
+  checkType: CheckerType
+}) {
+  const { shortUUID, videoName } = options
+  const notificationType = UserNotificationType.NEW_ABUSE_FOR_MODERATORS
+
+  function notificationChecker (notification: UserNotification, checkType: CheckerType) {
+    if (checkType === 'presence') {
+      expect(notification).to.not.be.undefined
+      expect(notification.type).to.equal(notificationType)
+
+      expect(notification.abuse.id).to.be.a('number')
+      checkVideo(notification.abuse.video, videoName, shortUUID)
+    } else {
+      expect(notification).to.satisfy((n: UserNotification) => {
+        return n === undefined || n.abuse === undefined || n.abuse.video.shortUUID !== shortUUID
+      })
+    }
+  }
+
+  function emailNotificationFinder (email: object) {
+    const text = email['text']
+    return text.indexOf(shortUUID) !== -1 && text.indexOf('abuse') !== -1
+  }
+
+  await checkNotification({ ...options, notificationChecker, emailNotificationFinder })
+}
+
+async function checkNewAbuseMessage (options: CheckerBaseParams & {
+  abuseId: number
+  message: string
+  toEmail: string
+  checkType: CheckerType
+}) {
+  const { abuseId, message, toEmail } = options
+  const notificationType = UserNotificationType.ABUSE_NEW_MESSAGE
+
+  function notificationChecker (notification: UserNotification, checkType: CheckerType) {
+    if (checkType === 'presence') {
+      expect(notification).to.not.be.undefined
+      expect(notification.type).to.equal(notificationType)
+
+      expect(notification.abuse.id).to.equal(abuseId)
+    } else {
+      expect(notification).to.satisfy((n: UserNotification) => {
+        return n === undefined || n.type !== notificationType || n.abuse === undefined || n.abuse.id !== abuseId
+      })
+    }
+  }
+
+  function emailNotificationFinder (email: object) {
+    const text = email['text']
+    const to = email['to'].filter(t => t.address === toEmail)
+
+    return text.indexOf(message) !== -1 && to.length !== 0
+  }
+
+  await checkNotification({ ...options, notificationChecker, emailNotificationFinder })
+}
+
+async function checkAbuseStateChange (options: CheckerBaseParams & {
+  abuseId: number
+  state: AbuseStateType
+  checkType: CheckerType
+}) {
+  const { abuseId, state } = options
+  const notificationType = UserNotificationType.ABUSE_STATE_CHANGE
+
+  function notificationChecker (notification: UserNotification, checkType: CheckerType) {
+    if (checkType === 'presence') {
+      expect(notification).to.not.be.undefined
+      expect(notification.type).to.equal(notificationType)
+
+      expect(notification.abuse.id).to.equal(abuseId)
+      expect(notification.abuse.state).to.equal(state)
+    } else {
+      expect(notification).to.satisfy((n: UserNotification) => {
+        return n === undefined || n.abuse === undefined || n.abuse.id !== abuseId
+      })
+    }
+  }
+
+  function emailNotificationFinder (email: object) {
+    const text = email['text']
+
+    const contains = state === AbuseState.ACCEPTED
+      ? ' accepted'
+      : ' rejected'
+
+    return text.indexOf(contains) !== -1
+  }
+
+  await checkNotification({ ...options, notificationChecker, emailNotificationFinder })
+}
+
+async function checkNewCommentAbuseForModerators (options: CheckerBaseParams & {
+  shortUUID: string
+  videoName: string
+  checkType: CheckerType
+}) {
+  const { shortUUID, videoName } = options
+  const notificationType = UserNotificationType.NEW_ABUSE_FOR_MODERATORS
+
+  function notificationChecker (notification: UserNotification, checkType: CheckerType) {
+    if (checkType === 'presence') {
+      expect(notification).to.not.be.undefined
+      expect(notification.type).to.equal(notificationType)
+
+      expect(notification.abuse.id).to.be.a('number')
+      checkVideo(notification.abuse.comment.video, videoName, shortUUID)
+    } else {
+      expect(notification).to.satisfy((n: UserNotification) => {
+        return n === undefined || n.abuse === undefined || n.abuse.comment.video.shortUUID !== shortUUID
+      })
+    }
+  }
+
+  function emailNotificationFinder (email: object) {
+    const text = email['text']
+    return text.indexOf(shortUUID) !== -1 && text.indexOf('abuse') !== -1
+  }
+
+  await checkNotification({ ...options, notificationChecker, emailNotificationFinder })
+}
+
+async function checkNewAccountAbuseForModerators (options: CheckerBaseParams & {
+  displayName: string
+  checkType: CheckerType
+}) {
+  const { displayName } = options
+  const notificationType = UserNotificationType.NEW_ABUSE_FOR_MODERATORS
+
+  function notificationChecker (notification: UserNotification, checkType: CheckerType) {
+    if (checkType === 'presence') {
+      expect(notification).to.not.be.undefined
+      expect(notification.type).to.equal(notificationType)
+
+      expect(notification.abuse.id).to.be.a('number')
+      expect(notification.abuse.account.displayName).to.equal(displayName)
+    } else {
+      expect(notification).to.satisfy((n: UserNotification) => {
+        return n === undefined || n.abuse === undefined || n.abuse.account.displayName !== displayName
+      })
+    }
+  }
+
+  function emailNotificationFinder (email: object) {
+    const text = email['text']
+    return text.indexOf(displayName) !== -1 && text.indexOf('abuse') !== -1
+  }
+
+  await checkNotification({ ...options, notificationChecker, emailNotificationFinder })
+}
+
+async function checkVideoAutoBlacklistForModerators (options: CheckerBaseParams & {
+  shortUUID: string
+  videoName: string
+  checkType: CheckerType
+}) {
+  const { shortUUID, videoName } = options
+  const notificationType = UserNotificationType.VIDEO_AUTO_BLACKLIST_FOR_MODERATORS
+
+  function notificationChecker (notification: UserNotification, checkType: CheckerType) {
+    if (checkType === 'presence') {
+      expect(notification).to.not.be.undefined
+      expect(notification.type).to.equal(notificationType)
+
+      expect(notification.videoBlacklist.video.id).to.be.a('number')
+      checkVideo(notification.videoBlacklist.video, videoName, shortUUID)
+    } else {
+      expect(notification).to.satisfy((n: UserNotification) => {
+        return n === undefined || n.video === undefined || n.video.shortUUID !== shortUUID
+      })
+    }
+  }
+
+  function emailNotificationFinder (email: object) {
+    const text = email['text']
+    return text.indexOf(shortUUID) !== -1 && email['text'].indexOf('video-auto-blacklist/list') !== -1
+  }
+
+  await checkNotification({ ...options, notificationChecker, emailNotificationFinder })
+}
+
+async function checkNewBlacklistOnMyVideo (options: CheckerBaseParams & {
+  shortUUID: string
+  videoName: string
+  blacklistType: 'blacklist' | 'unblacklist'
+}) {
+  const { videoName, shortUUID, blacklistType } = options
+  const notificationType = blacklistType === 'blacklist'
+    ? UserNotificationType.BLACKLIST_ON_MY_VIDEO
+    : UserNotificationType.UNBLACKLIST_ON_MY_VIDEO
+
+  function notificationChecker (notification: UserNotification) {
+    expect(notification).to.not.be.undefined
+    expect(notification.type).to.equal(notificationType)
+
+    const video = blacklistType === 'blacklist' ? notification.videoBlacklist.video : notification.video
+
+    checkVideo(video, videoName, shortUUID)
+  }
+
+  function emailNotificationFinder (email: object) {
+    const text = email['text']
+    const blacklistText = blacklistType === 'blacklist'
+      ? 'blacklisted'
+      : 'unblacklisted'
+
+    return text.includes(shortUUID) && text.includes(blacklistText)
+  }
+
+  await checkNotification({ ...options, notificationChecker, emailNotificationFinder, checkType: 'presence' })
+}
+
+async function checkNewPeerTubeVersion (options: CheckerBaseParams & {
+  latestVersion: string
+  checkType: CheckerType
+}) {
+  const { latestVersion } = options
+  const notificationType = UserNotificationType.NEW_PEERTUBE_VERSION
+
+  function notificationChecker (notification: UserNotification, checkType: CheckerType) {
+    if (checkType === 'presence') {
+      expect(notification).to.not.be.undefined
+      expect(notification.type).to.equal(notificationType)
+
+      expect(notification.peertube).to.exist
+      expect(notification.peertube.latestVersion).to.equal(latestVersion)
+    } else {
+      expect(notification).to.satisfy((n: UserNotification) => {
+        return n === undefined || n.peertube === undefined || n.peertube.latestVersion !== latestVersion
+      })
+    }
+  }
+
+  function emailNotificationFinder (email: object) {
+    const text = email['text']
+
+    return text.includes(latestVersion)
+  }
+
+  await checkNotification({ ...options, notificationChecker, emailNotificationFinder })
+}
+
+async function checkNewPluginVersion (options: CheckerBaseParams & {
+  pluginType: PluginType_Type
+  pluginName: string
+  checkType: CheckerType
+}) {
+  const { pluginName, pluginType } = options
+  const notificationType = UserNotificationType.NEW_PLUGIN_VERSION
+
+  function notificationChecker (notification: UserNotification, checkType: CheckerType) {
+    if (checkType === 'presence') {
+      expect(notification).to.not.be.undefined
+      expect(notification.type).to.equal(notificationType)
+
+      expect(notification.plugin.name).to.equal(pluginName)
+      expect(notification.plugin.type).to.equal(pluginType)
+    } else {
+      expect(notification).to.satisfy((n: UserNotification) => {
+        return n === undefined || n.plugin === undefined || n.plugin.name !== pluginName
+      })
+    }
+  }
+
+  function emailNotificationFinder (email: object) {
+    const text = email['text']
+
+    return text.includes(pluginName)
+  }
+
+  await checkNotification({ ...options, notificationChecker, emailNotificationFinder })
+}
+
+async function prepareNotificationsTest (serversCount = 3, overrideConfigArg: any = {}) {
+  const userNotifications: UserNotification[] = []
+  const adminNotifications: UserNotification[] = []
+  const adminNotificationsServer2: UserNotification[] = []
+  const emails: object[] = []
+
+  const port = await MockSmtpServer.Instance.collectEmails(emails)
+
+  const overrideConfig = {
+    ...ConfigCommand.getEmailOverrideConfig(port),
+
+    signup: {
+      limit: 20
+    }
+  }
+  const servers = await createMultipleServers(serversCount, Object.assign(overrideConfig, overrideConfigArg))
+
+  await setAccessTokensToServers(servers)
+  await setDefaultVideoChannel(servers)
+  await setDefaultChannelAvatar(servers)
+  await setDefaultAccountAvatar(servers)
+
+  if (servers[1]) {
+    await servers[1].config.enableStudio()
+    await servers[1].config.enableLive({ allowReplay: true, transcoding: false })
+  }
+
+  if (serversCount > 1) {
+    await doubleFollow(servers[0], servers[1])
+  }
+
+  const user = { username: 'user_1', password: 'super password' }
+  await servers[0].users.create({ ...user, videoQuota: 10 * 1000 * 1000 })
+  const userAccessToken = await servers[0].login.getAccessToken(user)
+
+  await servers[0].notifications.updateMySettings({ token: userAccessToken, settings: getAllNotificationsSettings() })
+  await servers[0].users.updateMyAvatar({ token: userAccessToken, fixture: 'avatar.png' })
+  await servers[0].channels.updateImage({ channelName: 'user_1_channel', token: userAccessToken, fixture: 'avatar.png', type: 'avatar' })
+
+  await servers[0].notifications.updateMySettings({ settings: getAllNotificationsSettings() })
+
+  if (serversCount > 1) {
+    await servers[1].notifications.updateMySettings({ settings: getAllNotificationsSettings() })
+  }
+
+  {
+    const socket = servers[0].socketIO.getUserNotificationSocket({ token: userAccessToken })
+    socket.on('new-notification', n => userNotifications.push(n))
+  }
+  {
+    const socket = servers[0].socketIO.getUserNotificationSocket()
+    socket.on('new-notification', n => adminNotifications.push(n))
+  }
+
+  if (serversCount > 1) {
+    const socket = servers[1].socketIO.getUserNotificationSocket()
+    socket.on('new-notification', n => adminNotificationsServer2.push(n))
+  }
+
+  const { videoChannels } = await servers[0].users.getMyInfo()
+  const channelId = videoChannels[0].id
+
+  return {
+    userNotifications,
+    adminNotifications,
+    adminNotificationsServer2,
+    userAccessToken,
+    emails,
+    servers,
+    channelId,
+    baseOverrideConfig: overrideConfig
+  }
+}
+
+// ---------------------------------------------------------------------------
+
+export {
+  type CheckerType,
+  type CheckerBaseParams,
+
+  getAllNotificationsSettings,
+
+  checkMyVideoImportIsFinished,
+  checkUserRegistered,
+  checkAutoInstanceFollowing,
+  checkVideoIsPublished,
+  checkNewVideoFromSubscription,
+  checkNewActorFollow,
+  checkNewCommentOnMyVideo,
+  checkNewBlacklistOnMyVideo,
+  checkCommentMention,
+  checkNewVideoAbuseForModerators,
+  checkVideoAutoBlacklistForModerators,
+  checkNewAbuseMessage,
+  checkAbuseStateChange,
+  checkNewInstanceFollower,
+  prepareNotificationsTest,
+  checkNewCommentAbuseForModerators,
+  checkNewAccountAbuseForModerators,
+  checkNewPeerTubeVersion,
+  checkNewPluginVersion,
+  checkVideoStudioEditionIsFinished,
+  checkRegistrationRequest
+}
+
+// ---------------------------------------------------------------------------
+
+async function checkNotification (options: CheckerBaseParams & {
+  notificationChecker: (notification: UserNotification, checkType: CheckerType) => void
+  emailNotificationFinder: (email: object) => boolean
+  checkType: CheckerType
+}) {
+  const { server, token, checkType, notificationChecker, emailNotificationFinder, socketNotifications, emails } = options
+
+  const check = options.check || { web: true, mail: true }
+
+  if (check.web) {
+    const notification = await server.notifications.getLatest({ token })
+
+    if (notification || checkType !== 'absence') {
+      notificationChecker(notification, checkType)
+    }
+
+    const socketNotification = socketNotifications.find(n => {
+      try {
+        notificationChecker(n, 'presence')
+        return true
+      } catch {
+        return false
+      }
+    })
+
+    if (checkType === 'presence') {
+      const obj = inspect(socketNotifications, { depth: 5 })
+      expect(socketNotification, 'The socket notification is absent when it should be present. ' + obj).to.not.be.undefined
+    } else {
+      const obj = inspect(socketNotification, { depth: 5 })
+      expect(socketNotification, 'The socket notification is present when it should not be present. ' + obj).to.be.undefined
+    }
+  }
+
+  if (check.mail) {
+    // Last email
+    const email = emails
+                      .slice()
+                      .reverse()
+                      .find(e => emailNotificationFinder(e))
+
+    if (checkType === 'presence') {
+      const texts = emails.map(e => e.text)
+      expect(email, 'The email is absent when is should be present. ' + inspect(texts)).to.not.be.undefined
+    } else {
+      expect(email, 'The email is present when is should not be present. ' + inspect(email)).to.be.undefined
+    }
+  }
+}
+
+function checkVideo (video: any, videoName?: string, shortUUID?: string) {
+  if (videoName) {
+    expect(video.name).to.be.a('string')
+    expect(video.name).to.not.be.empty
+    expect(video.name).to.equal(videoName)
+  }
+
+  if (shortUUID) {
+    expect(video.shortUUID).to.be.a('string')
+    expect(video.shortUUID).to.not.be.empty
+    expect(video.shortUUID).to.equal(shortUUID)
+  }
+
+  expect(video.id).to.be.a('number')
+}
+
+function checkActor (actor: any, options: { withAvatar?: boolean } = {}) {
+  const { withAvatar = true } = options
+
+  expect(actor.displayName).to.be.a('string')
+  expect(actor.displayName).to.not.be.empty
+  expect(actor.host).to.not.be.undefined
+
+  if (withAvatar) {
+    expect(actor.avatars).to.be.an('array')
+    expect(actor.avatars).to.have.lengthOf(2)
+    expect(actor.avatars[0].path).to.exist.and.not.empty
+  }
+}
+
+function checkComment (comment: any, commentId: number, threadId: number) {
+  expect(comment.id).to.equal(commentId)
+  expect(comment.threadId).to.equal(threadId)
+}