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<!doctype html>
<head>
<title>Test setSinkId behavior </title>
<link rel="author" title="Dominique Hazael-Massieux" href="mailto:dom@w3.org"/>
<link rel="help" href="https://www.w3.org/TR/audio-output/#dom-htmlmediaelement-setsinkid">
</head>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script>
"use strict";
const audio = new Audio();
promise_test(t => audio.setSinkId(""), "setSinkId on default audio output should always work");
promise_test(t => promise_rejects_dom(t, "NotFoundError", audio.setSinkId("nonexistent_device_id")),
"setSinkId fails with NotFoundError on made up deviceid");
promise_test(async t => {
// Attempt to expose some audiooutput devices.
await navigator.mediaDevices.getUserMedia({ audio: true });
const list = await navigator.mediaDevices.enumerateDevices();
assert_greater_than(list.length, 0,
"media device list includes at least one device");
const audioInputList = list.filter(({kind}) => kind == "audioinput");
const outputDevicesList = list.filter(({kind}) => kind == "audiooutput");
// List of exposed microphone groupIds
const exposedGroupIds = new Set(audioInputList.map(device => device.groupId));
for (const { deviceId, groupId } of outputDevicesList) {
assert_true(exposedGroupIds.has(groupId),
"audiooutput device groupId must match an exposed microphone");
assert_greater_than(deviceId.length, 0, "deviceId.length");
const p1 = audio.setSinkId(deviceId);
assert_equals(audio.sinkId, "", "before it resolves, setSinkId is unchanged");
let r;
try {
r = await p1;
} catch (e) {
// "If sinkId is not the empty string, and the application would not be
// permitted to play audio through the device identified by sinkId if it
// weren't the current user agent default device, reject p with a new
// DOMException whose name is NotAllowedError and abort these
// substeps."
assert_equals(e.name, "NotAllowedError", "Non-permitted devices are failing with NotAllowed error");
continue;
}
assert_equals(r, undefined, "setSinkId resolves with undefined");
assert_equals(audio.sinkId, deviceId, "when it resolves, setSinkId updates sinkId to the requested deviceId");
r = await audio.setSinkId(deviceId);
assert_equals(r, undefined, "resetting sinkid on same current value should always work");
r = await audio.setSinkId("");
assert_equals(r, undefined, "resetting sinkid on default audio output should always work");
}
}, "setSinkId() with output device IDs exposed by getUserMedia() should either reject with NotAllowedError or resolve");
</script>
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