MediaRecorder-requestData.html

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This test has a WPT meta file that expects 3 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /mediacapture-record/MediaRecorder-requestData.html - WPT Dashboard Interop Dashboard

<!doctype html>

<html>

<head>

    <title>MediaRecorder requestData</title>

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

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

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

    <script src="utils/sources.js"></script>

</head>

<body>

<script>

promise_test(async t => {

    const {stream} = createVideoStream(t);

    const recorder = new MediaRecorder(stream);

    recorder.start();

    const event = await new Promise(resolve => {

        recorder.ondataavailable = resolve;

        recorder.requestData();

});

    assert_equals(event.data.size, 0,

        "requestData() immediately after start() should produce empty blob");

    assert_false(Number.isNaN(event.timecode), "timecode should not be NaN");

}, "requestData() immediately after start() fires dataavailable with empty data for video");

promise_test(async t => {

    const {stream} = createAudioStream(t);

    const recorder = new MediaRecorder(stream);

    recorder.start();

    const event = await new Promise(resolve => {

        recorder.ondataavailable = resolve;

        recorder.requestData();

});

    assert_equals(event.data.size, 0,

        "requestData() immediately after start() should produce empty blob");

    assert_false(Number.isNaN(event.timecode), "timecode should not be NaN");

}, "requestData() immediately after start() fires dataavailable with empty data for audio");

promise_test(async t => {

    const {stream} = createAudioVideoStream(t);

    const recorder = new MediaRecorder(stream);

    recorder.start();

    const event = await new Promise(resolve => {

        recorder.ondataavailable = resolve;

        recorder.requestData();

});

    assert_equals(event.data.size, 0,

        "requestData() immediately after start() should produce empty blob");

    assert_false(Number.isNaN(event.timecode), "timecode should not be NaN");

}, "requestData() immediately after start() fires dataavailable with empty data for audio/video");

promise_test(async t => {

    const {stream} = createFlowingVideoStream(t);

    const recorder = new MediaRecorder(stream);

    const onstartPromise = new Promise(r => recorder.onstart = r);

    recorder.start();

    await onstartPromise;

    const event = await new Promise(resolve => {

        recorder.ondataavailable = resolve;

        recorder.requestData();

});

    assert_greater_than(event.data.size, 0,

        "requestData() after onstart should produce non-empty blob");

    assert_equals(event.data.type, recorder.mimeType,

        "blob type should match recorder mimeType");

}, "requestData() after onstart fires dataavailable with non-empty data for video");

promise_test(async t => {

    const {stream} = createFlowingAudioStream(t);

    const recorder = new MediaRecorder(stream);

    const onstartPromise = new Promise(r => recorder.onstart = r);

    recorder.start();

    await onstartPromise;

    const event = await new Promise(resolve => {

        recorder.ondataavailable = resolve;

        recorder.requestData();

});

    assert_greater_than(event.data.size, 0,

        "requestData() after onstart should produce non-empty blob");

    assert_equals(event.data.type, recorder.mimeType,

        "blob type should match recorder mimeType");

}, "requestData() after onstart fires dataavailable with non-empty data for audio");

promise_test(async t => {

    const {stream} = createFlowingAudioVideoStream(t);

    const recorder = new MediaRecorder(stream);

    const onstartPromise = new Promise(r => recorder.onstart = r);

    recorder.start();

    await onstartPromise;

    const event = await new Promise(resolve => {

        recorder.ondataavailable = resolve;

        recorder.requestData();

});

    assert_greater_than(event.data.size, 0,

        "requestData() after onstart should produce non-empty blob");

    assert_equals(event.data.type, recorder.mimeType,

        "blob type should match recorder mimeType");

}, "requestData() after onstart fires dataavailable with non-empty data for audio/video");

</script>

</body>

</html>