4 <title>Assigning mediastream to a video element</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#navigatorusermedia">
7 <link rel='stylesheet' href='../../../../resources/testharness.css' media='all'/>
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 the MediaStream object returned by
13 the success callback in getUserMedia can be properly assigned to a video element
14 via the <code>srcObject</code> attribute.</p>
16 <video id="vid"></video>
19 <script src=../../../../resources/testharness.js></script>
20 <script src=../../../../resources/testharnessreport.js></script>
21 <script src="../../../../resources/vendor-prefix.js" data-prefixed-objects='[{"ancestors":["navigator"], "name":"getUserMedia"}]' data-prefixed-prototypes='[{"ancestors":["HTMLMediaElement"],"name":"srcObject"}]'></script>
23 var vid = document.getElementById("vid");
24 var t = async_test("Tests that a MediaStream can be assigned to a video element with srcObject", {timeout: 10000});
26 navigator.getUserMedia({video: true}, t.step_func(function (stream) {
27 var testOncePlaying = function() {
28 assert_equals(vid.played.length, 1, "A MediaStream's timeline always consists of a single range");
29 assert_equals(vid.played.start(0), 0, "A MediaStream's timeline always consists of a single range");
30 assert_equals(vid.played.end(0), vid.currentTime, "A MediaStream's timeline always consists of a single range");
31 assert_equals(vid.readyState, vid.HAVE_ENOUGH_DATA, "Upon selecting a media stream, the UA sets readyState to HAVE_ENOUGH_DATA");
32 var time = vid.currentTime;
33 assert_throws("INVALID_STATE_ERR", function() {
36 assert_equals(vid.currentTime, time, "The UA MUST ignore attempts to set the currentTime attribute");
37 // TODO add test that duration must be set to currentTime
38 // when mediastream is destroyed
39 vid.removeEventListener("timeupdate", testOncePlaying, false);
42 vid.addEventListener("timeupdate", t.step_func(testOncePlaying), false);
43 vid.srcObject = stream;
45 assert_true(!vid.seeking, "A MediaStream is not seekable");
46 assert_equals(vid.seekable.length, 0, "A MediaStream is not seekable");
47 assert_equals(vid.defaultPlaybackRate, 1, "playback rate is always 1");
48 assert_equals(vid.playbackRate, 1, "playback rate is always 1");
49 assert_equals(vid.buffered.length, 0, "A MediaStream cannot be preloaded. Therefore, there is no buffered timeranges");
50 assert_equals(vid.duration, Infinity, " A MediaStream does not have a pre-defined duration. ");
51 assert_equals(vid.startDate, NaN, " A MediaStream does not specify a timeline offset");
52 }), function(error) {});