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1 <!doctype html> | |
2 <html> | |
3 <head> | |
4 <title>Adding a track to 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-MediaStreamTrackList-add-void-MediaStreamTrack-track"> | |
7 <link rel="help" href="http://dev.w3.org/2011/webrtc/editor/getusermedia.html#ev
ent-mediastream-addtrack"> | |
8 </head> | |
9 <body> | |
10 <p class="instructions">When prompted, accept to share your audio stream, then y
our video stream.</p> | |
11 <h1 class="instructions">Description</h1> | |
12 <p class="instructions">This test checks that adding a track to a MediaStream wo
rks 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="/common/vendor-prefix.js" data-prefixed-objects='[{"ancestors":["na
vigator"], "name":"getUserMedia"}]'></script> | |
18 <script> | |
19 var t = async_test("Tests that adding a track to a MediaStream works as expected
", {timeout: 20000}); // longer timeout since requires double user interaction | |
20 t.step(function () { | |
21 var audio, video; | |
22 | |
23 navigator.getUserMedia({audio: true}, gotAudio, function(error) {}); | |
24 function gotAudio(stream) { | |
25 audio = stream; | |
26 navigator.getUserMedia({video: true}, gotVideo, function(error) {}); | |
27 } | |
28 | |
29 function gotVideo(stream) { | |
30 video = stream; | |
31 t.step(function () { | |
32 assert_equals(video.getAudioTracks().length, 0, "video mediastream starts
with no audio track"); | |
33 video.addTrack(audio.getAudioTracks()[0]); | |
34 assert_equals(video.getAudioTracks().length, 1, "video mediastream has no
w one audio track"); | |
35 video.addTrack(audio.getAudioTracks()[0]); | |
36 assert_equals(video.getAudioTracks().length, 1, "video mediastream still
has one audio track"); // If track is already in stream's track set, then abort
these steps. | |
37 | |
38 }); | |
39 audio.onaddtrack = t.step_func(function () { | |
40 assert_unreached("onaddtrack is not fired when the script directly modifi
ed the track of a mediastream"); | |
41 }); | |
42 t.step(function () { | |
43 assert_equals(audio.getVideoTracks().length, 0, "audio mediastream starts
with no video track"); | |
44 audio.addTrack(video.getVideoTracks()[0]); | |
45 assert_equals(audio.getVideoTracks().length, 1, "audio mediastream now ha
s one video track"); | |
46 }); | |
47 t.step(function () { | |
48 t.done(); | |
49 }); | |
50 } | |
51 }); | |
52 </script> | |
53 </body> | |
54 </html> | |
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