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RTCPeerConnection-setRemoteDescription-replaceTrack.https.html
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RTCPeerConnection-setRemoteDescription-replaceTrack.https.html
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<!doctype html>
<meta charset=utf-8>
<title>RTCPeerConnection.prototype.setRemoteDescription - replaceTrack</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="RTCPeerConnection-helper.js"></script>
<script>
'use strict';
// The following helper functions are called from RTCPeerConnection-helper.js:
// getUserMediaTracksAndStreams
async_test(t => {
const caller = new RTCPeerConnection();
t.add_cleanup(() => caller.close());
return getUserMediaTracksAndStreams(2)
.then(t.step_func(([tracks, streams]) => {
const sender = caller.addTrack(tracks[0], streams[0]);
return sender.replaceTrack(tracks[1])
.then(t.step_func(() => {
assert_equals(sender.track, tracks[1]);
t.done();
}));
}))
.catch(t.step_func(reason => {
assert_unreached(reason);
}));
}, 'replaceTrack() sets the track attribute to a new track.');
async_test(t => {
const caller = new RTCPeerConnection();
t.add_cleanup(() => caller.close());
return getUserMediaTracksAndStreams(1)
.then(t.step_func(([tracks, streams]) => {
const sender = caller.addTrack(tracks[0], streams[0]);
return sender.replaceTrack(null)
.then(t.step_func(() => {
assert_equals(sender.track, null);
t.done();
}));
}))
.catch(t.step_func(reason => {
assert_unreached(reason);
}));
}, 'replaceTrack() sets the track attribute to null.');
async_test(t => {
const caller = new RTCPeerConnection();
t.add_cleanup(() => caller.close());
return getUserMediaTracksAndStreams(2)
.then(t.step_func(([tracks, streams]) => {
const sender = caller.addTrack(tracks[0], streams[0]);
assert_equals(sender.track, tracks[0]);
sender.replaceTrack(tracks[1]);
// replaceTrack() is asynchronous, there should be no synchronously
// observable effects.
assert_equals(sender.track, tracks[0]);
t.done();
}))
.catch(t.step_func(reason => {
assert_unreached(reason);
}));
}, 'replaceTrack() does not set the track synchronously.');
async_test(t => {
const expectedException = 'InvalidStateError';
const caller = new RTCPeerConnection();
t.add_cleanup(() => caller.close());
return getUserMediaTracksAndStreams(2)
.then(t.step_func(([tracks, streams]) => {
const sender = caller.addTrack(tracks[0], streams[0]);
caller.close();
return sender.replaceTrack(tracks[1])
.then(t.step_func(() => {
assert_unreached('Expected replaceTrack() to be rejected with ' +
expectedException + ' but the promise was resolved.');
}),
t.step_func(e => {
assert_equals(e.name, expectedException);
t.done();
}));
}))
.catch(t.step_func(reason => {
assert_unreached(reason);
}));
}, 'replaceTrack() rejects when the peer connection is closed.');
promise_test(async t => {
const caller = new RTCPeerConnection();
t.add_cleanup(() => caller.close());
const [tracks, streams] = await getUserMediaTracksAndStreams(2);
const sender = caller.addTrack(tracks[0], streams[0]);
caller.removeTrack(sender);
await sender.replaceTrack(tracks[1]);
assert_equals(sender.track, tracks[1], "Make sure track gets updated");
}, 'replaceTrack() does not reject when invoked after removeTrack().');
promise_test(async t => {
const caller = new RTCPeerConnection();
t.add_cleanup(() => caller.close());
const [tracks, streams] = await getUserMediaTracksAndStreams(2);
const sender = caller.addTrack(tracks[0], streams[0]);
let p = sender.replaceTrack(tracks[1])
caller.removeTrack(sender);
await p;
assert_equals(sender.track, tracks[1], "Make sure track gets updated");
}, 'replaceTrack() does not reject after a subsequent removeTrack().');
// TODO(hbos): Verify that replaceTrack() changes what media is received on
// the remote end of two connected peer connections. For video tracks, this
// requires Chromium's video tag to update on receiving frames when running
// content_shell. https://crbug.com/793808
</script>