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+<!doctype html>
+<html>
+<head>
+<title>A disabled video track is rendered as blackness</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 video stream.</p>
+<h1 class="instructions">Description</h1>
+<p class="instructions">This test checks that a disabled video track in a
+MediaStream is rendered as blackness.</p>
+<video id="vid"></video>
+
+<div id='log'></div>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<script src=/resources/testdriver.js></script>
+<script src=/resources/testdriver-vendor.js></script>
+<script src=permission-helper.js></script>
+<script>
+const vid = document.getElementById("vid");
+const cv = document.createElement("canvas");
+promise_test(async () => {
+  await setMediaPermission("granted", ["camera"]);
+  const stream = await navigator.mediaDevices.getUserMedia({video: true});
+  if (stream.getVideoTracks()[0].enabled) {
+    stream.getVideoTracks()[0].enabled = false;
+  }
+
+  let resolveLoadedPromise;
+  const videoLoaded = new Promise(res => resolveLoadedPromise = res)
+  var testOnceLoadeddata = function() {
+        vid.removeEventListener("loadeddata", testOnceLoadeddata, false);
+        cv.width = vid.offsetWidth;
+        cv.height = vid.offsetHeight;
+        var ctx = cv.getContext("2d");
+        ctx.drawImage(vid,0,0);
+        var imageData = ctx.getImageData(0, 0, cv.width, cv.height);
+        for (var i = 0; i < imageData.data.length; i+=4) {
+          assert_equals(imageData.data[i], 0, "No red component in pixel #" + i);
+          assert_equals(imageData.data[i + 1], 0, "No green component in pixel #" + i);
+          assert_equals(imageData.data[i + 2], 0, "No blue component in pixel #" + i);
+          assert_equals(imageData.data[i + 3], 255, "No transparency in pixel #" + i);
+        }
+        resolveLoadedPromise();
+  };
+
+  vid.srcObject = stream;
+  vid.play();
+  vid.addEventListener("loadeddata", testOnceLoadeddata, false);
+}, "Tests that a disabled video track in a MediaStream is rendered as blackness");
+</script>
+</body>
+</html>