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diff --git a/server/tests/cli/optimize-old-videos.ts b/server/tests/cli/optimize-old-videos.ts
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index 000000000..66dd39cce
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+++ b/server/tests/cli/optimize-old-videos.ts
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+/* tslint:disable:no-unused-expression */
+
+import 'mocha'
+import * as chai from 'chai'
+import { getMaxBitrate, Video, VideoDetails, VideoResolution } from '../../../shared/models/videos'
+import {
+  doubleFollow,
+  execCLI,
+  flushAndRunMultipleServers,
+  flushTests, generateHighBitrateVideo,
+  getEnvCli,
+  getVideo,
+  getVideosList,
+  killallServers, root,
+  ServerInfo,
+  setAccessTokensToServers,
+  uploadVideo, viewVideo, wait
+} from '../utils'
+import { waitJobs } from '../utils/server/jobs'
+import { getVideoFileBitrate, getVideoFileFPS, getVideoFileResolution } from '../../helpers/ffmpeg-utils'
+import { VIDEO_TRANSCODING_FPS } from '../../initializers'
+import { join } from 'path'
+
+const expect = chai.expect
+
+describe('Test optimize old videos', function () {
+  let servers: ServerInfo[] = []
+  let video1UUID: string
+  let video2UUID: string
+
+  before(async function () {
+    this.timeout(200000)
+
+    await flushTests()
+
+    // Run server 2 to have transcoding enabled
+    servers = await flushAndRunMultipleServers(2)
+    await setAccessTokensToServers(servers)
+
+    await doubleFollow(servers[0], servers[1])
+
+    let tempFixturePath: string
+
+    {
+      tempFixturePath = await generateHighBitrateVideo()
+
+      const bitrate = await getVideoFileBitrate(tempFixturePath)
+      expect(bitrate).to.be.above(getMaxBitrate(VideoResolution.H_1080P, 60, VIDEO_TRANSCODING_FPS))
+    }
+
+    // Upload two videos for our needs
+    const res1 = await uploadVideo(servers[0].url, servers[0].accessToken, { name: 'video1', fixture: tempFixturePath })
+    video1UUID = res1.body.video.uuid
+    const res2 = await uploadVideo(servers[0].url, servers[0].accessToken, { name: 'video2', fixture: tempFixturePath })
+    video2UUID = res2.body.video.uuid
+
+    await waitJobs(servers)
+  })
+
+  it('Should have two video files on each server', async function () {
+    this.timeout(30000)
+
+    for (const server of servers) {
+      const res = await getVideosList(server.url)
+      const videos = res.body.data
+      expect(videos).to.have.lengthOf(2)
+
+      for (const video of videos) {
+        const res2 = await getVideo(server.url, video.uuid)
+        const videoDetail: VideoDetails = res2.body
+        expect(videoDetail.files).to.have.lengthOf(1)
+      }
+    }
+  })
+
+  it('Should run optimize script', async function () {
+    this.timeout(120000)
+
+    const env = getEnvCli(servers[0])
+    await execCLI(`${env} npm run optimize-old-videos`)
+
+    await waitJobs(servers)
+
+    for (const server of servers) {
+      const res = await getVideosList(server.url)
+      const videos: Video[] = res.body.data
+
+      expect(videos).to.have.lengthOf(2)
+
+      for (const video of videos) {
+        await viewVideo(server.url, video.uuid)
+
+        // Refresh video
+        await waitJobs(servers)
+        await wait(5000)
+        await waitJobs(servers)
+
+        const res2 = await getVideo(server.url, video.uuid)
+        const videosDetails: VideoDetails = res2.body
+
+        expect(videosDetails.files).to.have.lengthOf(1)
+        const file = videosDetails.files[0]
+
+        expect(file.size).to.be.below(5000000)
+
+        const path = join(root(), 'test1', 'videos', video.uuid + '-' + file.resolution.id + '.mp4')
+        const bitrate = await getVideoFileBitrate(path)
+        const fps = await getVideoFileFPS(path)
+        const resolution = await getVideoFileResolution(path)
+
+        expect(resolution.videoFileResolution).to.equal(file.resolution.id)
+        expect(bitrate).to.be.below(getMaxBitrate(resolution.videoFileResolution, fps, VIDEO_TRANSCODING_FPS))
+      }
+    }
+  })
+
+  after(async function () {
+    killallServers(servers)
+  })
+})