dom/media/test/test_streams_tracks.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <head>
   4   <title>Test MediaStreamTrack interfaces</title>
   5   <script src="/tests/SimpleTest/SimpleTest.js"></script>
   6   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
   7   <script type="text/javascript" src="manifest.js"></script>
   8 </head>
   9 <body>
  10 <pre id="test">
  11 <script class="testbody" type="text/javascript">
  12 const manager = new MediaTestManager;
  13
  14 function testTracks(tracks, hasTrack, kind, src) {
  15   is(tracks.length, hasTrack ? 1 : 0, `Correct ${kind} track count for ${src}`);
  16   for (const track of tracks) {
  17     is(track.readyState, "live", `Track ${track.id} should still be live`);
  18     is(track.kind, kind, `Correct track kind for track ${track.id} of ${src}`);
  19     ok(/\{........-....-....-....-............\}/.test(track.id),
  20       `id ${track.id} for ${track.kind} track of ${src} has correct form`);
  21   }
  22 }
  23
  24 async function startTest(test, token) {
  25   try {
  26     info(`Starting test of ${test.name}`);
  27     const element = document.createElement("video");
  28
  29     element.token = token;
  30     manager.started(token);
  31
  32     element.src = test.name;
  33     element.test = test;
  34     const stream = element.mozCaptureStreamUntilEnded();
  35
  36     element.play();
  37
  38     await new Promise(r => element.onloadedmetadata = r);
  39
  40     testTracks(stream.getAudioTracks(), test.hasAudio, "audio", test.name);
  41     testTracks(stream.getVideoTracks(), test.hasVideo, "video", test.name);
  42     const tracks = stream.getTracks();
  43
  44     await new Promise(r => element.onended = r);
  45
  46     for (let i = 0; i < tracks.length; ++i) {
  47       await Promise.race(
  48         tracks.map(t => new Promise(r => t.onended = r))
  49       );
  50       await new Promise(r => stream.onremovetrack = r);
  51     }
  52
  53     testTracks(stream.getAudioTracks(), false, "audio", test.name);
  54     testTracks(stream.getVideoTracks(), false, "video", test.name);
  55   } catch(e) {
  56     ok(false, `Caught error: ${e}`);
  57   } finally {
  58     manager.finished(token);
  59   }
  60 }
  61
  62 manager.runTests(gTrackTests, startTest);
  63 </script>
  64 </pre>
  65 </body>
  66 </html>