third_party/WebKit/LayoutTests/media/avtrack/audio-track-enabled.html

   1 <!doctype html>
   2 <html>
   3     <head>
   4         <title>AudioTrack.enabled change</title>
   5         <script src="../../resources/testharness.js"></script>
   6         <script src="../../resources/testharnessreport.js"></script>
   7         <script src="../media-file.js"></script>
   8     </head>
   9     <body>
  10         <div id="log"></div>
  11         <script>
  12             async_test(function(t)
  13             {
  14                 var e = document.createElement("audio");
  15                 e.src = findMediaFile("audio", "../content/test");
  16
  17                 e.onloadedmetadata = t.step_func(function()
  18                 {
  19                     assert_equals(e.audioTracks.length, 1, "audioTracks.length");
  20                     assert_true(e.audioTracks[0].enabled, "audioTrack.enabled (initial)");
  21                     e.audioTracks[0].enabled = false;
  22                     assert_false(e.audioTracks[0].enabled, "audioTrack.enabled (first setter)");
  23
  24                     e.audioTracks.onchange = t.step_func(function()
  25                     {
  26                         assert_false(e.audioTracks[0].enabled, "audioTrack.enabled (first change event)");
  27                         e.audioTracks[0].enabled = true;
  28                         assert_true(e.audioTracks[0].enabled, "audioTrack.enabled (second setter)");
  29
  30                         e.audioTracks.onchange = t.step_func(function()
  31                         {
  32                             assert_true(e.audioTracks[0].enabled, "audioTrack.enabled (second change event)");
  33                             t.done();
  34                         });
  35                     });
  36                 });
  37             }, "AudioTrack.enabled = false");
  38         </script>
  39     </body>
  40 </html>