| <!doctype html> |
| <html> |
| <head> |
| <title>Retrieving a track from a MediaStream</title> |
| <link rel="author" title="Dominique Hazael-Massieux" href="mailto:dom@w3.org"/> |
| <link rel="help" href="http://dev.w3.org/2011/webrtc/editor/getusermedia.html#widl-MediaStream-getTrackById-MediaStreamTrack-DOMString-trackId"> |
| </head> |
| <body> |
| <p class="instructions">When prompted, accept to share your video stream.</p> |
| <h1 class="instructions">Description</h1> |
| <p class="instructions">This test checks that MediaStream.getTrackById behaves as expected</p> |
| |
| <div id='log'></div> |
| <script src=/resources/testharness.js></script> |
| <script src=/resources/testharnessreport.js></script> |
| <script> |
| var t = async_test("Tests that MediaStream.getTrackById works as expected"); |
| t.step(function () { |
| navigator.mediaDevices.getUserMedia({video: true}) |
| .then(t.step_func(gotVideo), t.step_func(function (error) { |
| assert_unreached('Unexpected getUserMedia error: ' + error); |
| })); |
| function gotVideo(stream) { |
| var track = stream.getVideoTracks()[0]; |
| assert_equals(track, stream.getTrackById(track.id), "getTrackById returns track of given id"); |
| assert_equals(stream.getTrackById(track.id + "foo"), null, "getTrackById of inexistant id returns null"); |
| t.done(); |
| } |
| }); |
| </script> |
| </body> |
| </html> |
