testing/web-platform/tests/mediacapture-streams/MediaStream-finished-add.https.html

   1 <!doctype html>
   2 <html>
   3 <head>
   4 <title>Adding a track to an inactive MediaStream</title>
   5 <link rel="author" title="Dominique Hazael-Massieux" href="mailto:dom@w3.org"/>
   6 <link rel="help" href="http://w3c.github.io/mediacapture-main/getusermedia.html#widl-MediaStream-addTrack-void-MediaStreamTrack-track">
   7 <link rel="help" href="http://w3c.github.io/mediacapture-main/getusermedia.html#widl-MediaStreamTrack-stop-void">
   8 </head>
   9 <body>
  10 <p class="instructions">When prompted, accept to share your audio stream, then
  11 your video stream.</p>
  12 <h1 class="instructions">Description</h1>
  13 <p class="instructions">This test checks that adding a track to an inactive
  14 MediaStream is allowed.</p>
  15
  16 <div id='log'></div>
  17 <script src=/resources/testharness.js></script>
  18 <script src=/resources/testharnessreport.js></script>
  19 <script>
  20 var t = async_test("Tests that adding a track to an inactive MediaStream is allowed");
  21 t.step(function () {
  22   var audio, video;
  23
  24   navigator.mediaDevices.getUserMedia({audio:true}).then(gotAudio);
  25   function gotAudio(stream) {
  26     audio = stream;
  27     navigator.mediaDevices.getUserMedia({video:true}).then(gotVideo);
  28   }
  29
  30   function gotVideo(stream) {
  31     video = stream;
  32     t.step(function () {
  33        audio.getAudioTracks()[0].stop();
  34        assert_false(audio.active, "audio stream is inactive after stopping its only audio track");
  35        assert_true(video.active, "video stream is active");
  36        audio.addTrack(video.getVideoTracks()[0]);
  37        audio.removeTrack(audio.getAudioTracks()[0]);
  38      });
  39     t.done();
  40   }
  41 });
  42 </script>
  43 </body>
  44 </html>