<!DOCTYPE HTML>
<html>
    <head>
        <script src="../../resources/testharness.js"></script>
        <script src="../../resources/testharnessreport.js"></script>
    </head>
    <body>
        <script>
promise_test(async (test) => {
    const stream = await navigator.mediaDevices.getUserMedia({audio:true});
    const deviceId = stream.getTracks()[0].getSettings().deviceId;
    await stream.getTracks()[0].applyConstraints({deviceId: {exact: deviceId}});
}, "applyConstraint deviceId for audio");

promise_test(async (test) => {
    const stream = await navigator.mediaDevices.getUserMedia({video:true});
    const deviceId = stream.getTracks()[0].getSettings().deviceId;
    await stream.getTracks()[0].applyConstraints({deviceId: {exact: deviceId}});
}, "applyConstraint deviceId for video");
        </script>
    </body>
</html>