testing/web-platform/tests/mediacapture-image/MediaStreamTrack-getCapabilities-fast.html

   1 <!DOCTYPE html>
   2 <script src="/resources/testharness.js"></script>
   3 <script src="/resources/testharnessreport.js"></script>
   4 <body>
   5 <canvas id='canvas' width=10 height=10/>
   6 </body>
   7 <script>
   8
   9 // This test verifies that MediaStreamTrack.getCapabilities() exists and that it
  10 // returns something.  Other tests go deeper.
  11 test(function() {
  12   var canvas = document.getElementById('canvas');
  13   var context = canvas.getContext("2d");
  14   context.fillStyle = "red";
  15   context.fillRect(0, 0, 10, 10);
  16
  17   var stream = canvas.captureStream();
  18   assert_equals(stream.getAudioTracks().length, 0);
  19   assert_equals(stream.getVideoTracks().length, 1);
  20
  21   var videoTrack = stream.getVideoTracks()[0];
  22
  23   assert_equals(typeof videoTrack.getCapabilities, 'function');
  24
  25   capabilities = videoTrack.getCapabilities();
  26   assert_equals(typeof capabilities, 'object');
  27 }, 'MediaStreamTrack.getCapabilities()');
  28
  29 </script>