becd871ab2a113f62b8a6b0fec61d78337e3f640
[WebKit-https.git] / LayoutTests / imported / w3c / web-platform-tests / mediacapture-streams / GUM-optional-constraint.https.html
1 <!doctype html>
2 <html>
3 <head>
4 <title>Optional constraint recognized as optional in getUserMedia</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#widl-NavigatorUserMedia-getUserMedia-void-MediaStreamConstraints-constraints-NavigatorUserMediaSuccessCallback-successCallback-NavigatorUserMediaErrorCallback-errorCallback">
7 </head>
8 <body>
9 <p class="instructions">When prompted, accept to share your video stream.</p>
10 <h1 class="instructions">Description</h1>
11 <p class="instructions">This test checks that setting an optional constraint in
12 getUserMedia is handled as optional</p>
13
14 <div id='log'></div>
15 <script src=/resources/testharness.js></script>
16 <script src=/resources/testharnessreport.js></script>
17 <script>
18 var t = async_test("Tests that setting an optional constraint in getUserMedia is handled as optional", {timeout:10000});
19 t.step(function() {
20   navigator.mediaDevices.getUserMedia({video: {advanced: [{width: {min:1024, max: 800}}]}})
21     .then(t.step_func(function (stream) {
22       assert_equals(stream.getVideoTracks().length, 1, "the media stream has exactly one video track");
23       t.done();
24     }), t.step_func(function(error) {
25       assert_unreached("an optional constraint can't stop us from obtaining a video stream");
26     }));
27 });
28 </script>
29 </body>
30 </html>