diff --git a/server/tests/api/check-params/index.ts b/server/tests/api/check-params/index.ts
index b22bf054a..ab0aa1580 100644
--- a/server/tests/api/check-params/index.ts
+++ b/server/tests/api/check-params/index.ts
@@ -1,8 +1,10 @@
 // Order of the tests we want to execute
 import './follows'
 import './jobs'
-import './users'
 import './services'
-import './videos'
+import './users'
 import './video-abuses'
 import './video-blacklist'
+import './video-channels'
+import './video-comments'
+import './videos'
diff --git a/server/tests/api/check-params/video-comments.ts b/server/tests/api/check-params/video-comments.ts
new file mode 100644
index 000000000..5112274f0
--- /dev/null
+++ b/server/tests/api/check-params/video-comments.ts
@@ -0,0 +1,212 @@
+/* tslint:disable:no-unused-expression */
+
+import 'mocha'
+import * as request from 'supertest'
+import {
+  createUser, flushTests, getUserAccessToken, killallServers, makePostBodyRequest, runServer, ServerInfo, setAccessTokensToServers,
+  uploadVideo
+} from '../../utils'
+import { addVideoCommentThread } from '../../utils/video-comments'
+
+describe('Test video comments API validator', function () {
+  let pathThread: string
+  let pathComment: string
+  let server: ServerInfo
+  let accessTokenUser: string
+  let videoUUID: string
+  let commentId: number
+
+  // ---------------------------------------------------------------
+
+  before(async function () {
+    this.timeout(20000)
+
+    await flushTests()
+
+    server = await runServer(1)
+
+    await setAccessTokensToServers([ server ])
+
+    {
+      const user = {
+        username: 'fake',
+        password: 'fake_password'
+      }
+      await createUser(server.url, server.accessToken, user.username, user.password)
+
+      accessTokenUser = await getUserAccessToken(server, user)
+    }
+
+    {
+      const res = await uploadVideo(server.url, server.accessToken, {})
+      videoUUID = res.body.video.uuid
+      pathThread = '/api/v1/videos/' + videoUUID + '/comment-threads'
+    }
+
+    {
+      const res = await addVideoCommentThread(server.url, server.accessToken, videoUUID, 'coucou')
+      commentId = res.body.comment.id
+      pathComment = '/api/v1/videos/' + videoUUID + '/comments/' + commentId
+    }
+  })
+
+  describe('When listing video comment threads', function () {
+    it('Should fail with a bad start pagination', async function () {
+      await request(server.url)
+              .get(pathThread)
+              .query({ start: 'hello' })
+              .set('Accept', 'application/json')
+              .expect(400)
+    })
+
+    it('Should fail with a bad count pagination', async function () {
+      await request(server.url)
+              .get(pathThread)
+              .query({ count: 'hello' })
+              .set('Accept', 'application/json')
+              .expect(400)
+    })
+
+    it('Should fail with an incorrect sort', async function () {
+      await request(server.url)
+              .get(pathThread)
+              .query({ sort: 'hello' })
+              .set('Accept', 'application/json')
+              .expect(400)
+    })
+
+    it('Should fail with an incorrect video', async function () {
+      await request(server.url)
+        .get('/api/v1/videos/ba708d62-e3d7-45d9-9d73-41b9097cc02d/comment-threads')
+        .set('Accept', 'application/json')
+        .expect(404)
+    })
+  })
+
+  describe('When listing comments of a thread', function () {
+    it('Should fail with an incorrect video', async function () {
+      await request(server.url)
+        .get('/api/v1/videos/ba708d62-e3d7-45d9-9d73-41b9097cc02d/comment-threads/' + commentId)
+        .set('Accept', 'application/json')
+        .expect(404)
+    })
+
+    it('Should fail with an incorrect thread id', async function () {
+      await request(server.url)
+        .get('/api/v1/videos/' + videoUUID + '/comment-threads/156')
+        .set('Accept', 'application/json')
+        .expect(404)
+    })
+
+    it('Should success with the correct params', async function () {
+      await request(server.url)
+        .get('/api/v1/videos/' + videoUUID + '/comment-threads/' + commentId)
+        .set('Accept', 'application/json')
+        .expect(200)
+    })
+  })
+
+  describe('When adding a video thread', function () {
+
+    it('Should fail with a non authenticated user', async function () {
+      const fields = {
+        text: 'text'
+      }
+      await makePostBodyRequest({ url: server.url, path: pathThread, token: 'none', fields, statusCodeExpected: 401 })
+    })
+
+    it('Should fail with nothing', async function () {
+      const fields = {}
+      await makePostBodyRequest({ url: server.url, path: pathThread, token: server.accessToken, fields })
+    })
+
+    it('Should fail with a short comment', async function () {
+      const fields = {
+        text: 'h'.repeat(3001)
+      }
+      await makePostBodyRequest({ url: server.url, path: pathThread, token: server.accessToken, fields })
+    })
+
+    it('Should fail with a long comment', async function () {
+      const fields = {
+        text: 'h'.repeat(3001)
+      }
+      await makePostBodyRequest({ url: server.url, path: pathThread, token: server.accessToken, fields })
+    })
+
+    it('Should fail with an incorrect video', async function () {
+      const path = '/api/v1/videos/ba708d62-e3d7-45d9-9d73-41b9097cc02d/comment-threads'
+      const fields = {
+        text: 'super comment'
+      }
+      await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields, statusCodeExpected: 404 })
+    })
+
+    it('Should succeed with the correct parameters', async function () {
+      const fields = {
+        text: 'super comment'
+      }
+      await makePostBodyRequest({ url: server.url, path: pathThread, token: server.accessToken, fields, statusCodeExpected: 200 })
+    })
+  })
+
+  describe('When adding a comment to a thread', function () {
+    it('Should fail with a non authenticated user', async function () {
+      const fields = {
+        text: 'text'
+      }
+      await makePostBodyRequest({ url: server.url, path: pathComment, token: 'none', fields, statusCodeExpected: 401 })
+    })
+
+    it('Should fail with nothing', async function () {
+      const fields = {}
+      await makePostBodyRequest({ url: server.url, path: pathComment, token: server.accessToken, fields })
+    })
+
+    it('Should fail with a short comment', async function () {
+      const fields = {
+        text: 'h'.repeat(3001)
+      }
+      await makePostBodyRequest({ url: server.url, path: pathComment, token: server.accessToken, fields })
+    })
+
+    it('Should fail with a long comment', async function () {
+      const fields = {
+        text: 'h'.repeat(3001)
+      }
+      await makePostBodyRequest({ url: server.url, path: pathComment, token: server.accessToken, fields })
+    })
+
+    it('Should fail with an incorrect video', async function () {
+      const path = '/api/v1/videos/ba708d62-e3d7-45d9-9d73-41b9097cc02d/comments/' + commentId
+      const fields = {
+        text: 'super comment'
+      }
+      await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields, statusCodeExpected: 404 })
+    })
+
+    it('Should fail with an incorrect comment', async function () {
+      const path = '/api/v1/videos/' + videoUUID + '/comments/124'
+      const fields = {
+        text: 'super comment'
+      }
+      await makePostBodyRequest({ url: server.url, path, token: server.accessToken, fields, statusCodeExpected: 404 })
+    })
+
+    it('Should succeed with the correct parameters', async function () {
+      const fields = {
+        text: 'super comment'
+      }
+      await makePostBodyRequest({ url: server.url, path: pathComment, token: server.accessToken, fields, statusCodeExpected: 200 })
+    })
+  })
+
+  after(async function () {
+    killallServers([ server ])
+
+    // Keep the logs if the test failed
+    if (this['ok']) {
+      await flushTests()
+    }
+  })
+})
diff --git a/server/tests/api/video-comments.ts b/server/tests/api/video-comments.ts
index fbc1a0a20..2f1e6260a 100644
--- a/server/tests/api/video-comments.ts
+++ b/server/tests/api/video-comments.ts
@@ -8,7 +8,7 @@ import { addVideoCommentReply, addVideoCommentThread, getVideoCommentThreads, ge
 
 const expect = chai.expect
 
-describe('Test a video comments', function () {
+describe('Test video comments', function () {
   let server: ServerInfo
   let videoId
   let videoUUID
diff --git a/server/tests/utils/video-comments.ts b/server/tests/utils/video-comments.ts
index be062f815..6a6e225f3 100644
--- a/server/tests/utils/video-comments.ts
+++ b/server/tests/utils/video-comments.ts
@@ -25,7 +25,7 @@ function getVideoThreadComments (url: string, videoId: number, threadId: number)
     .expect('Content-Type', /json/)
 }
 
-function addVideoCommentThread (url: string, token: string, videoId: number, text: string, expectedStatus = 200) {
+function addVideoCommentThread (url: string, token: string, videoId: number | string, text: string, expectedStatus = 200) {
   const path = '/api/v1/videos/' + videoId + '/comment-threads'
 
   return request(url)