<body>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script>
promise_test(async() => {
    let stream = await navigator.mediaDevices.getUserMedia({audio : true });
    assert_equals(stream.getAudioTracks()[0].getSettings().volume, 1, "test1");

    stream = await navigator.mediaDevices.getUserMedia({audio : { volume : 0 } });
    assert_equals(stream.getAudioTracks()[0].getSettings().volume, 0);

    stream = await navigator.mediaDevices.getUserMedia({audio : true });
    assert_equals(stream.getAudioTracks()[0].getSettings().volume, 1, "test3");
}, "Volume should be reset to default value if not specified explicitly");
</script>
</body>