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1 <!doctype html> | |
2 <html> | |
3 <head> | |
4 <title>MediaStream constructor algorithm</title> | |
5 <link rel="author" title="Dominique Hazael-Massieux" href="mailto:dom@w3.org"/> | |
6 <link rel="help" href="http://w3c.github.io/mediacapture-main/getusermedia.html#
idl-def-MediaStream"> | |
7 <link rel="help" href="http://w3c.github.io/mediacapture-main/getusermedia.html#
widl-MediaStream-id"> | |
8 <link rel="help" href="http://w3c.github.io/mediacapture-main/getusermedia.html#
mediastream"> | |
9 <link rel="help" href="http://w3c.github.io/mediacapture-main/getusermedia.html#
event-mediastreamtrack-ended"> | |
10 <link rel="help" href="http://w3c.github.io/mediacapture-main/getusermedia.html#
widl-MediaStreamTrack-stop-void"> | |
11 <link rel="help" href="http://w3c.github.io/mediacapture-main/getusermedia.html#
widl-MediaStreamTrack-clone-MediaStreamTrack"> | |
12 </head> | |
13 <body> | |
14 <p class="instructions">When prompted, accept to share your video and audio stre
am.</p> | |
15 <h1 class="instructions">Description</h1> | |
16 <p class="instructions">This test checks that the MediaStream constructor | |
17 follows the algorithm set in the spec.</p> | |
18 | |
19 <div id='log'></div> | |
20 <script src=/resources/testharness.js></script> | |
21 <script src=/resources/testharnessreport.js></script> | |
22 <script src="/common/vendor-prefix.js" data-prefixed-objects='[{"ancestors":["na
vigator"], "name":"getUserMedia"},{"ancestors":["window"], "name":"MediaStream"}
]'></script> | |
23 <script> | |
24 var t = async_test("Tests that a MediaStream constructor follows the algorithm s
et in the spec", {timeout: 10000}); | |
25 t.step(function() { | |
26 navigator.getUserMedia({video: true, audio:true}, t.step_func(function (stream
) { | |
27 var stream1 = new MediaStream(); | |
28 assert_not_equals(stream.id, stream1.id, "Two different MediaStreams have di
fferent ids"); | |
29 var stream2 = new MediaStream(stream); | |
30 assert_not_equals(stream.id, stream2.id, "A MediaStream constructed from ano
ther have different ids"); | |
31 var audioTrack1 = stream.getAudioTracks()[0]; | |
32 var videoTrack = stream.getVideoTracks()[0]; | |
33 assert_equals(audioTrack1, stream2.getAudioTracks()[0], "A MediaStream const
ructed from another share the same audio track"); | |
34 assert_equals(videoTrack, stream2.getVideoTracks()[0], "A MediaStream constr
ucted from another share the same video track"); | |
35 var stream4 = new MediaStream([audioTrack1]); | |
36 assert_equals(stream4.getTrackById(audioTrack1.id), audioTrack1, "a non-ende
d track gets added via the MediaStream constructor"); | |
37 | |
38 var audioTrack2 = audioTrack1.clone(); | |
39 audioTrack2.addEventListener("ended", t.step_func(function () { | |
40 var stream3 = new MediaStream([audioTrack2, videoTrack]); | |
41 assert_equals(stream3.getTrackById(audioTrack2.id), null, "an ended track
doesn't get added via the MediaStream constructor"); | |
42 assert_equals(stream3.getTrackById(videoTrack.id), videoTrack, "a non-ende
d track gets added via the MediaStream constructor even if the previous track wa
s ended"); | |
43 var stream5 = new MediaStream([audioTrack2]); | |
44 assert_false(stream5.active, "a MediaStream created using the MediaStream()
constructor whose arguments are lists of MediaStreamTrack objects that are all
ended, the MediaStream object MUST be created with its active attribute set to f
alse"); | |
45 t.done(); | |
46 }), false); | |
47 audioTrack2.stop(); | |
48 }), function(error) {}); | |
49 }); | |
50 </script> | |
51 </body> | |
52 </html> | |
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