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diff --git a/testing/web-platform/tests/mediacapture-streams/MediaStreamTrack-MediaElement-disabled-audio-is-silence.https.html b/testing/web-platform/tests/mediacapture-streams/MediaStreamTrack-MediaElement-disabled-audio-is-silence.https.html
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+++ b/testing/web-platform/tests/mediacapture-streams/MediaStreamTrack-MediaElement-disabled-audio-is-silence.https.html
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+<!doctype html>
+<html>
+<head>
+<title>A disabled audio track is rendered as silence</title>
+<link rel="author" title="Dominique Hazael-Massieux" href="mailto:dom@w3.org"/>
+<link rel="help" href="http://dev.w3.org/2011/webrtc/editor/getusermedia.html#introduction">
+<link rel="help" href="http://dev.w3.org/2011/webrtc/editor/getusermedia.html#mediastreams-as-media-elements">
+</head>
+<body>
+<p class="instructions">When prompted, accept to share your audio stream.</p>
+<h1 class="instructions">Description</h1>
+<p class="instructions">This test checks that a disabled audio track in a
+MediaStream is rendered as silence. It relies on the
+<a href="https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html">
+Web Audio API</a>.</p>
+
+<div id='log'></div>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<script src="/common/vendor-prefix.js" data-prefixed-objects='[{"ancestors":["navigator"], "name":"getUserMedia"}, {"ancestors":["window"], "name":"AudioContext"}]'></script>
+<script>
+var t = async_test("Tests that a disabled audio track in a MediaStream is rendered as silence", {timeout: 200000});
+var aud = document.getElementById("aud");
+t.step(function() {
+ navigator.getUserMedia({audio: true}, t.step_func(function (stream) {
+ var ctx = new AudioContext();
+ var streamSource = ctx.createMediaStreamSource(stream);
+ var silenceDetector = ctx.createScriptProcessor(1024);
+ var count = 10;
+ silenceDetector.onaudioprocess = t.step_func(function (e) {
+ var buffer1 = e.inputBuffer.getChannelData(0);
+ var buffer2 = e.inputBuffer.getChannelData(1);
+ var out = e.outputBuffer.getChannelData(0);
+ out = new Float32Array(buffer1);
+ for (var i = 0; i < buffer1.length; i++) {
+ assert_equals(buffer1[i], 0, "Audio buffer entry #" + i + " in channel 0 is silent");
+ }
+ for (var i = 0; i < buffer2.length; i++) {
+ assert_equals(buffer2[i], 0, "Audio buffer entry #" + i + " in channel 1 is silent");
+ }
+ count--;
+ if (count === 0) {
+ silenceDetector.onaudioprocess = null;
+ t.done();
+ }
+ });
+ stream.getAudioTracks()[0].enabled = false;
+
+ streamSource.connect(silenceDetector);
+ silenceDetector.connect(ctx.destination);
+ }), function(error) {});
+});
+</script>
+</body>
+</html>