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<!doctype html>
<title>MediaStreamTrack applyConstraints</title>
<p class="instructions">When prompted, accept to share your video stream.</p>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script src=/resources/testdriver.js></script>
<script src=/resources/testdriver-vendor.js></script>
<script src=permission-helper.js></script>
<script>
'use strict'
// https://w3c.github.io/mediacapture-main/#dom-mediastreamtrack-applyconstraints
promise_test(async t => {
await setMediaPermission("granted", ["camera"]);
return navigator.mediaDevices.getUserMedia({ video: true })
.then(t.step_func(stream => {
return stream.getVideoTracks()[0].applyConstraints(
{ groupId: { exact: "INVALID" } }).then(
t.unreached_func('Accepted invalid groupID'),
t.step_func(e => {
assert_equals(e.name, 'OverconstrainedError');
assert_equals(e.constraint, 'groupId');
}));
}));
}, 'applyConstraints rejects invalid groupID');
promise_test(t => {
return navigator.mediaDevices.getUserMedia({ video: true })
.then(t.step_func(stream => {
var track = stream.getVideoTracks()[0];
var groupId = track.getSettings().groupId;
return track.applyConstraints({ groupId: "INVALID" }).then(
t.step_func(() => {
assert_equals(track.getSettings().groupId, groupId);
}));
}));
}, 'applyConstraints accepts invalid ideal groupID, does not change setting');
promise_test(t => {
return navigator.mediaDevices.getUserMedia({ video: true })
.then(t.step_func(stream => {
var track = stream.getVideoTracks()[0];
var groupId = track.getSettings().groupId;
return navigator.mediaDevices.enumerateDevices().then(devices => {
var anotherDevice = devices.find(device => {
return device.kind == "videoinput" && device.groupId != groupId;
});
if (anotherDevice !== undefined) {
return track.applyConstraints(
{ groupId: { exact: anotherDevice.groupId } }).then(
t.unreached_func(),
t.step_func(e => {
assert_equals(e.name, 'OverconstrainedError');
assert_equals(e.constraint, 'groupId');
}));
}
});
}));
}, 'applyConstraints rejects attempt to switch device using groupId');
promise_test(async t => {
const stream = await navigator.mediaDevices.getUserMedia({ video: true });
const [track] = stream.getVideoTracks();
t.add_cleanup(() => track.stop());
try {
await track.applyConstraints({ resizeMode: { exact: "INVALID" } });
t.unreached_func('applyConstraints() must fail with invalid resizeMode')();
} catch (e) {
assert_equals(e.name, 'OverconstrainedError');
assert_equals(e.constraint, 'resizeMode');
}
}, 'applyConstraints rejects invalid resizeMode');
promise_test(async t => {
const stream = await navigator.mediaDevices.getUserMedia({ video: true });
const [track] = stream.getVideoTracks();
t.add_cleanup(() => track.stop());
const resizeMode = track.getSettings().resizeMode;
await track.applyConstraints({ resizeMode: "INVALID" });
assert_equals(track.getSettings().resizeMode, resizeMode);
}, 'applyConstraints accepts invalid ideal resizeMode, does not change setting');
</script>
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