| Index: LayoutTests/imported/web-platform-tests/mediacapture-streams/stream-api/mediastream/mediastream-addtrack.html
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| diff --git a/LayoutTests/imported/web-platform-tests/mediacapture-streams/stream-api/mediastream/mediastream-addtrack.html b/LayoutTests/imported/web-platform-tests/mediacapture-streams/stream-api/mediastream/mediastream-addtrack.html
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| new file mode 100644
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| index 0000000000000000000000000000000000000000..b5ac48f4eda07d48d2d01cd1fcbee67f5859f8cb
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| --- /dev/null
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| +++ b/LayoutTests/imported/web-platform-tests/mediacapture-streams/stream-api/mediastream/mediastream-addtrack.html
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| @@ -0,0 +1,55 @@
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| +<!doctype html>
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| +<html>
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| +<head>
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| +<title>Adding a track to a MediaStream</title>
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| +<link rel="author" title="Dominique Hazael-Massieux" href="mailto:dom@w3.org"/>
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| +<link rel="help" href="http://dev.w3.org/2011/webrtc/editor/getusermedia.html#widl-MediaStreamTrackList-add-void-MediaStreamTrack-track">
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| +<link rel="help" href="http://dev.w3.org/2011/webrtc/editor/getusermedia.html#event-mediastream-addtrack">
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| +<link rel='stylesheet' href='../../../../../resources/testharness.css' media='all'/>
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| +</head>
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| +<body>
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| +<p class="instructions" style="display:none">When prompted, accept to share your audio stream, then your video stream.</p>
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| +<h1 class="instructions" style="display:none">Description</h1>
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| +<p class="instructions" style="display:none">This test checks that adding a track to a MediaStream works as expected.</p>
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| +
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| +<div id='log'></div>
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| +<script src=../../../../../resources/testharness.js></script>
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| +<script src=../../../../../resources/testharnessreport.js></script>
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| +<script src="../../../../../resources/vendor-prefix.js" data-prefixed-objects='[{"ancestors":["navigator"], "name":"getUserMedia"}]'></script>
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| +<script>
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| +var t = async_test("Tests that adding a track to a MediaStream works as expected", {timeout: 20000}); // longer timeout since requires double user interaction
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| +t.step(function () {
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| +  var audio, video;
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| +
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| +  navigator.getUserMedia({audio: true}, gotAudio, function(error) {});
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| +  function gotAudio(stream) {
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| +    audio = stream;
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| +    navigator.getUserMedia({video: true}, gotVideo, function(error) {});
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| +  }
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| +
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| +  function gotVideo(stream) {
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| +    video = stream;
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| +    t.step(function () {
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| +       assert_equals(video.getAudioTracks().length, 0, "video mediastream starts with no audio track");
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| +       video.addTrack(audio.getAudioTracks()[0]);
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| +       assert_equals(video.getAudioTracks().length, 1, "video mediastream has now one audio track");
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| +       video.addTrack(audio.getAudioTracks()[0]);
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| +       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.
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| +
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| +    });
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| +    audio.onaddtrack = t.step_func(function () {
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| +       assert_unreached("onaddtrack is not fired when the script directly modified the track of a mediastream");
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| +    });
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| +    t.step(function () {
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| +       assert_equals(audio.getVideoTracks().length, 0, "audio mediastream starts with no video track");
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| +       audio.addTrack(video.getVideoTracks()[0]);
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| +       assert_equals(audio.getVideoTracks().length, 1, "audio mediastream now has one video track");
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| +    });
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| +    t.step(function () {
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| +       t.done();
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| +    });
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| +  }
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| +});
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| +</script>
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| +</body>
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| +</html>
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| 
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