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For now legacy is enabled. Differential Revision: https://phabricator.services.mozilla.com/D154139
48 lines
2.2 KiB
HTML
48 lines
2.2 KiB
HTML
<!doctype html>
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<head>
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<title>Test effect of selectAudioOutput() on audiooutput devices from enumerateDevices()</title>
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<link rel="help" href="https://w3c.github.io/mediacapture-output/#dom-mediadevices-selectaudiooutput">
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</head>
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<body>
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<p class="instructions">If prompted, <strong>please allow</strong> access to
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an audio output device.</p>
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</body>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/resources/testdriver.js"></script>
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<script src="/resources/testdriver-vendor.js"></script>
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<script>
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'use strict';
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promise_test(async () => {
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const devices = await navigator.mediaDevices.enumerateDevices();
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const outputDevices = devices.filter(info => info.kind == "audiooutput");
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assert_equals(outputDevices.length, 0, "number of audiooutput devices.");
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}, "enumerateDevices() returns no audiooutput devices before permission grant");
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let selected;
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promise_test(async t => {
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await test_driver.bless('transient activation for selectAudioOutput()');
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selected = await navigator.mediaDevices.selectAudioOutput();
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assert_true(selected instanceof MediaDeviceInfo,
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"resolves with a MediaDeviceInfo.");
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assert_equals(selected.kind, "audiooutput", "selected.kind");
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assert_greater_than(selected.deviceId.length, 0, "selected.deviceId.length");
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assert_greater_than(selected.groupId.length, 0, "selected.groupId.length");
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assert_not_equals(selected.label, undefined, "selected.label");
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}, "selectAudioOutput()");
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promise_test(async () => {
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// "Once a device is exposed after a call to selectAudioOutput, it MUST be
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// listed by enumerateDevices() for the current browsing context."
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const devices = await navigator.mediaDevices.enumerateDevices();
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const outputDevices = devices.filter(info => info.kind == "audiooutput");
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assert_equals(outputDevices.length, 1, "number of audiooutput devices.");
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assert_not_equals(selected, undefined);
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const [info] = outputDevices;
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assert_equals(info.deviceId, selected.deviceId, "deviceId exposed");
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assert_equals(info.groupId, selected.groupId, "groupId exposed");
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assert_equals(info.label, selected.label, "label exposed");
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}, "enumerateDevices() after selectAudioOutput()");
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</script>
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