dom/media/test/test_background_video_cancel_suspend_visible.html

   1 <!DOCTYPE html>
   2 <meta charset="utf-8">
   3 <title>Test Background Video Suspend Cancels (Visibility)</title>
   4 <script src="/tests/SimpleTest/SimpleTest.js"></script>
   5 <script src="manifest.js"></script>
   6 <script src="background_video.js"></script>
   7 <link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
   8 <script type="text/javascript">
   9 "use strict";
  10
  11 var manager = new MediaTestManager;
  12
  13 /**
  14  * Check that making the element visible before suspend timer delay causes the
  15  * the suspend timer to be canceled.
  16  * @param {HTMLMediaElement} video Video element under test.
  17  * @returns {Promise} Promise that is resolved when video decode resumes.
  18  */
  19 function testSuspendTimerCanceledWhenShown(video) {
  20   function ended() {
  21     video.removeEventListener("mozcancelvideosuspendtimer", canceled);
  22     ok(false, `${video.token} ended before suspend cancels`);
  23     this.ended_resolve();
  24   }
  25
  26   function canceled() {
  27     video.removeEventListener("ended", ended);
  28     ok(true, `${video.token} suspend cancels`);
  29     this.canceled_resolve();
  30   }
  31
  32   let p = Promise.race([
  33     new Promise((resolve) => {
  34       video.ended_resolve = resolve;
  35       video.addEventListener('ended', ended, { 'once': true });
  36     }),
  37     new Promise((resolve) => {
  38       video.canceled_resolve = resolve;
  39       video.addEventListener('mozcancelvideosuspendtimer', canceled, { 'once': true });
  40     })
  41   ]);
  42
  43   Log(video.token, "Set visible");
  44   video.setVisible(true);
  45
  46   return p;
  47 }
  48
  49 startTest({
  50   desc: 'Test Background Video Suspend Cancels (Visibility)',
  51   prefs: [
  52     [ "media.test.video-suspend", true ],
  53     [ "media.suspend-background-video.enabled", true ],
  54     [ "media.suspend-background-video.delay-ms", 10000 ]
  55   ],
  56   tests: gDecodeSuspendTests,
  57   runTest: (test, token) => {
  58     let v = appendVideoToDoc(test.name, token);
  59     manager.started(token);
  60
  61     waitUntilPlaying(v)
  62       .then(() => testSuspendTimerStartedWhenHidden(v))
  63       .then(() => testSuspendTimerCanceledWhenShown(v))
  64       .then(() => {
  65         ok(true, `${v.token} finished`);
  66         manager.finished(token);
  67       });
  68   }
  69 });