<html>
<head>
    <script src="../../resources/testharness.js"></script>
    <script src="../../resources/testharnessreport.js"></script>
</head>
<body>
<script type="application/javascript">
window.onunhandledrejection = () => false;

function waitFor(duration)
{
    return new Promise((resolve) => setTimeout(resolve, duration));
}

promise_test(async () => {
    const stream = await navigator.mediaDevices.getUserMedia({ audio: true, video: true });
    const localTracks = stream.getTracks();
    video = document.createElement('video');
    video.autoplay = true;
    video.playsInline = true;
    const videoStream = new MediaStream();
    localTracks.forEach(track => videoStream.addTrack(track));
    video.srcObject = videoStream;
    document.body.appendChild(video);
    video.play();

    await waitFor(100);

    videoStream.getTracks().forEach(track => {
        videoStream.removeTrack(track);
        video.srcObject = videoStream;
    });
    video.srcObject = null;
    video.remove();
}, "Remove tracks in a being played MediaStream");
</script>
</body>
</html>