MediaRecorder-start.html

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This WPT test may be referenced by the following Test IDs:
- /mediacapture-record/MediaRecorder-start.html - WPT Dashboard Interop Dashboard

<!doctype html>

<html>

<head>

  <title>MediaRecorder Start</title>

  <link rel="help" href="https://w3c.github.io/mediacapture-record/MediaRecorder.html#dom-mediarecorder-start">

  <script src="/resources/testharness.js"></script>

  <script src="/resources/testharnessreport.js"></script>

</head>

<body>

<canvas id="canvas" width="200" height="200">

</canvas>

<script>

    function createVideoStream() {

        canvas.getContext('2d');

        return canvas.captureStream();

    test(t => {

        const mimeType = [ 'audio/aac', 'audio/ogg', 'audio/webm', 'audio/mp4' ].find(MediaRecorder.isTypeSupported);

        const mediaRecorder = new MediaRecorder(createVideoStream(), {mimeType});

        assert_throws_dom("NotSupportedError", () => mediaRecorder.start());

    }, "MediaRecorder cannot record the stream using the current configuration");

</script>

</body>

</html>