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| 1 <!doctype html> |
| 2 <html> |
| 3 <head> |
| 4 <title>Retrieving a track from a MediaStream</title> |
| 5 <link rel="author" title="Dominique Hazael-Massieux" href="mailto:dom@w3.org"/> |
| 6 <link rel="help" href="http://dev.w3.org/2011/webrtc/editor/getusermedia.html#wi
dl-MediaStream-getTrackById-MediaStreamTrack-DOMString-trackId"> |
| 7 <link rel='stylesheet' href='../../../../../resources/testharness.css' media='al
l'/> |
| 8 </head> |
| 9 <body> |
| 10 <p class="instructions" style="display:none">When prompted, accept to share your
video stream.</p> |
| 11 <h1 class="instructions" style="display:none">Description</h1> |
| 12 <p class="instructions" style="display:none">This test checks that MediaStream.g
etTrackById behaves as expected</p> |
| 13 |
| 14 <div id='log'></div> |
| 15 <script src=../../../../../resources/testharness.js></script> |
| 16 <script src=../../../../../resources/testharnessreport.js></script> |
| 17 <script src="../../../../../resources/vendor-prefix.js" data-prefixed-objects='[
{"ancestors":["navigator"], "name":"getUserMedia"}]'></script> |
| 18 <script> |
| 19 var t = async_test("Tests that MediaStream.getTrackById works as expected", {tim
eout: 10000}); |
| 20 t.step(function () { |
| 21 navigator.getUserMedia( |
| 22 {video: true}, |
| 23 t.step_func(gotVideo), |
| 24 t.step_func(function (error) { |
| 25 assert_unreached('Unexpected getUserMedia error: ' + error); |
| 26 })); |
| 27 function gotVideo(stream) { |
| 28 var track = stream.getVideoTracks()[0]; |
| 29 assert_equals(track, stream.getTrackById(track.id), "getTrackById returns tr
ack of given id"); |
| 30 assert_equals(stream.getTrackById(track.id + "foo"), null, "getTrackById of
inexistant id returns null"); |
| 31 t.done(); |
| 32 } |
| 33 }); |
| 34 </script> |
| 35 </body> |
| 36 </html> |
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