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<!DOCTYPE html>
<meta charset=utf-8>
<body>
<script src="/resources/testharness.js"
type="text/javascript{{GET[in-iframe]}}"></script>
<script src="/resources/testharnessreport.js"
type="text/javascript{{GET[in-iframe]}}"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="/common/get-host-info.sub.js"></script>
<script src="/permissions-policy/resources/permissions-policy.js"></script>
<script>
'use strict';
async function testSelectAudioOutput() {
await test_driver.bless('transient activation for selectAudioOutput()');
const selected = await navigator.mediaDevices.selectAudioOutput();
let devices;
try {
devices = await navigator.mediaDevices.enumerateDevices();
} catch (e) {
// Throw a unique error to avoid risk of false-pass if e should match
// an expected error from selectAudioOutput().
throw Error(`enumerateDevices() failed with ${e}`);
}
const selected_devices =
devices.filter(info => info.deviceId == selected.deviceId);
// Don't use assert_not_equals() because testharness.js cannot be
// loaded in the iframe with testdriver.js.
if (selected_devices.length != 1) {
throw Error('Device count matching selected is ' +
selected_devices.length);
}
}
if (page_loaded_in_iframe()) {
test_driver.set_test_context(window.parent);
}
const cross_domain = get_host_info().HTTPS_REMOTE_ORIGIN;
run_all_fp_tests_allow_self(
cross_domain,
'speaker-selection',
'NotAllowedError',
testSelectAudioOutput
);
</script>
</body>
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