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<!doctype html>
<meta charset=utf-8>
<title>RTCPeerConnection.prototype.setRemoteDescription - add/remove remote tracks</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="RTCPeerConnection-helper.js"></script>
<script>
'use strict';
// Test is based on the following editor draft:
// https://w3c.github.io/webrtc-pc/archives/20171002/webrtc.html
// The following helper functions are called from RTCPeerConnection-helper.js:
// getUserMediaTracksAndStreams
// performOffer
// Resolver
// These tests are concerned with the observable consequences of processing
// the addition or removal of remote tracks, including events firing and the
// states of RTCPeerConnection, MediaStream and MediaStreamTrack.
async_test(t => {
const caller = new RTCPeerConnection();
const callee = new RTCPeerConnection();
return getUserMediaTracksAndStreams(1)
.then(t.step_func(([tracks, streams]) => {
const localTrack = tracks[0];
caller.addTrack(localTrack);
const offerPromise = performOffer(caller, callee);
callee.ontrack = t.step_func(trackEvent => {
const remoteTrack = trackEvent.track;
assert_equals(remoteTrack.id, localTrack.id,
'Expected local and remote track IDs to match.');
assert_equals(trackEvent.streams.length, 0,
'Expected remote track not to belong to a stream.');
t.done();
});
return offerPromise;
}))
.catch(t.step_func(reason => {
assert_unreached(reason);
}));
}, 'addTrack() with a track and no stream makes ontrack fire with a track and no stream.');
async_test(t => {
const caller = new RTCPeerConnection();
const callee = new RTCPeerConnection();
return getUserMediaTracksAndStreams(1)
.then(t.step_func(([tracks, streams]) => {
const localTrack = tracks[0];
const localStream = streams[0];
caller.addTrack(localTrack, localStream);
const offerPromise = performOffer(caller, callee);
callee.ontrack = t.step_func(trackEvent => {
assert_equals(trackEvent.streams.length, 1,
'Expected track event to fire with a single stream.');
const remoteTrack = trackEvent.track;
const remoteStream = trackEvent.streams[0];
assert_equals(remoteTrack.id, localTrack.id,
'Expected local and remote track IDs to match.');
assert_equals(remoteStream.id, localStream.id,
'Expected local and remote stream IDs to match.');
assert_array_equals(remoteStream.getTracks(), [remoteTrack],
'Expected the remote stream\'s tracks to be the remote track.');
t.done();
});
return offerPromise;
}))
.catch(t.step_func(reason => {
assert_unreached(reason);
}));
}, 'addTrack() with a track and a stream makes ontrack fire with a track and a stream.');
async_test(t => {
const caller = new RTCPeerConnection();
const callee = new RTCPeerConnection();
let eventSequence = '';
return getUserMediaTracksAndStreams(1)
.then(t.step_func(([tracks, streams]) => {
const ontrackResolver = new Resolver();
callee.ontrack = () => {
eventSequence += 'ontrack;';
ontrackResolver.resolve();
}
caller.addTrack(tracks[0]);
return Promise.all([
ontrackResolver.promise,
performOffer(caller, callee).then(() => {
eventSequence += 'setRemoteDescription;';
})
]);
}))
.then(t.step_func(() => {
assert_equals(eventSequence, 'ontrack;setRemoteDescription;');
t.done();
}))
.catch(t.step_func(reason => {
assert_unreached(reason);
}));
}, 'ontrack fires before setRemoteDescription resolves.');
async_test(t => {
const caller = new RTCPeerConnection();
const callee = new RTCPeerConnection();
return getUserMediaTracksAndStreams(2)
.then(t.step_func(([tracks, streams]) => {
const localTrack1 = tracks[0];
const localTrack2 = tracks[1];
const localStream = streams[0];
caller.addTrack(localTrack1, localStream);
caller.addTrack(localTrack2, localStream);
const offerPromise = performOffer(caller, callee);
callee.ontrack = t.step_func(trackEvent => {
assert_equals(trackEvent.streams.length, 1,
'Expected track event to fire with a single stream.');
const remoteTrack1 = trackEvent.track;
const remoteStream = trackEvent.streams[0];
assert_equals(remoteTrack1.id, localTrack1.id,
'Expected first remote track ID to match first local track ID.');
assert_equals(remoteStream.getTracks().length, 2,
'Expected the remote stream to contain two tracks.');
callee.ontrack = t.step_func(trackEvent => {
assert_equals(trackEvent.streams.length, 1,
'Expected track event to fire with a single stream.');
const remoteTrack2 = trackEvent.track;
assert_equals(trackEvent.streams[0], remoteStream,
'Expected both track events to fire with the same remote stream.');
assert_equals(remoteTrack2.id, localTrack2.id,
'Expected second remote track ID to match second local track ID.');
assert_equals(remoteStream.getTracks().length, 2,
'Expected the remote stream to contain two tracks.');
assert_array_equals(remoteStream.getTracks(), [remoteTrack1, remoteTrack2],
'Expected the remote stream\'s tracks to be the [first, second] remote tracks.');
t.done();
});
});
return offerPromise;
}))
.catch(t.step_func(reason => {
assert_unreached(reason);
}));
}, 'addTrack() with two tracks and one stream makes ontrack fire twice with the tracks and shared stream.');
async_test(t => {
const caller = new RTCPeerConnection();
const callee = new RTCPeerConnection();
return getUserMediaTracksAndStreams(2)
.then(t.step_func(([tracks, streams]) => {
const localTracks = tracks;
const localStream = streams[0];
caller.addTrack(localTracks[0], localStream);
const offerPromise = performOffer(caller, callee);
callee.ontrack = t.step_func(trackEvent => {
assert_equals(trackEvent.streams.length, 1,
'Expected track event to fire with a single stream.');
const remoteTracks = [ trackEvent.track ];
const remoteStream = trackEvent.streams[0];
assert_equals(remoteTracks[0].id, localTracks[0].id, 'Remote track ID.');
assert_equals(remoteStream.id, localStream.id, 'Remote stream ID.');
assert_array_equals(remoteStream.getTracks(), remoteTracks,
'Expected the remote stream\'s tracks to be the remote track.');
caller.addTrack(localTracks[1], localStream);
performOffer(caller, callee);
remoteStream.onaddtrack = t.step_func(trackEvent => {
remoteTracks.push(trackEvent.track);
assert_equals(remoteTracks[1].id, localTracks[1].id, 'Remote track ID.');
assert_array_equals(remoteStream.getTracks(), remoteTracks,
'Expected the remote stream\'s tracks to be the remote tracks.');
t.done();
});
});
return offerPromise;
}))
.catch(t.step_func(reason => {
assert_unreached(reason);
}));
}, 'addTrack() for an existing stream makes stream.onaddtrack fire.');
async_test(t => {
const caller = new RTCPeerConnection();
const callee = new RTCPeerConnection();
let eventSequence = '';
return getUserMediaTracksAndStreams(2)
.then(t.step_func(([tracks, streams]) => {
const localTracks = tracks;
const localStream = streams[0];
caller.addTrack(localTracks[0], localStream);
const offerPromise = performOffer(caller, callee);
callee.ontrack = t.step_func(trackEvent => {
callee.ontrack = null;
const remoteStream = trackEvent.streams[0];
const onaddtrackResolver = new Resolver();
remoteStream.onaddtrack = () => {
eventSequence += 'stream.onaddtrack;';
onaddtrackResolver.resolve();
}
caller.addTrack(localTracks[1], localStream);
Promise.all([
onaddtrackResolver.promise,
performOffer(caller, callee).then(() => {
eventSequence += 'setRemoteDescription;';
})
]).then(t.step_func(() => {
assert_equals(eventSequence, 'stream.onaddtrack;setRemoteDescription;');
t.done();
}));
});
return offerPromise;
}))
.catch(t.step_func(reason => {
assert_unreached(reason);
}));
}, 'stream.onaddtrack fires before setRemoteDescription resolves.');
async_test(t => {
const caller = new RTCPeerConnection();
const callee = new RTCPeerConnection();
return getUserMediaTracksAndStreams(2)
.then(t.step_func(([tracks, streams]) => {
const localTrack = tracks[0];
const localStreams = streams;
caller.addTrack(localTrack, localStreams[0], localStreams[1]);
const performOffer = performOffer(caller, callee);
callee.ontrack = t.step_func(trackEvent => {
assert_equals(trackEvent.streams.length, 2,
'Expected the track event to fire with two streams.');
const remoteTrack = trackEvent.track;
const remoteStreams = trackEvent.streams;
assert_equals(remoteTrack.id, localTrack.id,
'Expected local and remote track IDs to match.');
assert_equals(remoteStreams[0].id, localStreams[0].id,
'Expected the first remote stream ID to match the first local stream ID.');
assert_equals(remoteStreams[1].id, localStreams[1].id,
'Expected the second remote stream ID to match the second local stream ID.');
assert_array_equals(remoteStreams[0].getTracks(), [remoteTrack],
'Expected the remote stream\'s tracks to be the remote track.');
assert_array_equals(remoteStreams[1].getTracks(), [remoteTrack],
'Expected the remote stream\'s tracks to be the remote track.');
t.done();
});
return performOffer;
}))
.catch(t.step_func(reason => {
assert_unreached(reason);
}));
}, 'addTrack() with a track and two streams makes ontrack fire with a track and two streams.');
async_test(t => {
const caller = new RTCPeerConnection();
const callee = new RTCPeerConnection();
return getUserMediaTracksAndStreams(1)
.then(t.step_func(([tracks, streams]) => {
caller.addTrack(tracks[0]);
const offerPromise = performOffer(caller, callee);
callee.ontrack = t.step_func(trackEvent => {
assert_array_equals(callee.getReceivers(), [trackEvent.receiver]);
t.done();
});
return offerPromise;
}))
.catch(t.step_func(reason => {
assert_unreached(reason);
}));
}, 'ontrack\'s receiver matches getReceivers().');
async_test(t => {
const caller = new RTCPeerConnection();
const callee = new RTCPeerConnection();
return getUserMediaTracksAndStreams(1)
.then(t.step_func(([tracks, streams]) => {
const sender = caller.addTrack(tracks[0]);
assert_not_equals(sender, null);
const offerPromise = performOffer(caller, callee);
callee.ontrack = t.step_func(trackEvent => {
const receivers = callee.getReceivers();
assert_equals(receivers.length, 1,
'Expected getReceivers() to be the track event\'s receiver.');
caller.removeTrack(sender);
performOffer(caller, callee)
.then(t.step_func(() => {
assert_array_equals(callee.getReceivers(), receivers,
'Expected the set of receivers to remain the same.');
t.done();
}));
});
return offerPromise;
}))
.catch(t.step_func(reason => {
assert_unreached(reason);
}));
}, 'removeTrack() does not remove the receiver.');
async_test(t => {
const caller = new RTCPeerConnection();
const callee = new RTCPeerConnection();
return getUserMediaTracksAndStreams(1)
.then(t.step_func(([tracks, streams]) => {
const sender = caller.addTrack(tracks[0], streams[0]);
assert_not_equals(sender, null);
const offerPromise = performOffer(caller, callee);
callee.ontrack = t.step_func(trackEvent => {
assert_not_equals(trackEvent.track, null);
assert_equals(trackEvent.streams.length, 1);
assert_true(trackEvent.streams[0].getTracks().includes(trackEvent.track));
caller.removeTrack(sender);
performOffer(caller, callee);
trackEvent.streams[0].onremovetrack = t.step_func(removeEvent => {
assert_equals(removeEvent.track, trackEvent.track);
assert_false(trackEvent.streams[0].getTracks().includes(trackEvent.track));
t.done();
});
});
return offerPromise;
}))
.catch(t.step_func(reason => {
assert_unreached(reason);
}));
}, 'removeTrack() makes stream.onremovetrack fire and the track to be removed from the stream.');
async_test(t => {
const caller = new RTCPeerConnection();
const callee = new RTCPeerConnection();
let eventSequence = '';
return getUserMediaTracksAndStreams(1)
.then(t.step_func(([tracks, streams]) => {
const sender = caller.addTrack(tracks[0], streams[0]);
assert_not_equals(sender, null);
const offerPromise = performOffer(caller, callee);
callee.ontrack = t.step_func(trackEvent => {
const remoteStream = trackEvent.streams[0];
const onremovetrackResolver = new Resolver();
remoteStream.onremovetrack = t.step_func(removeEvent => {
eventSequence += 'stream.onremovetrack;';
onremovetrackResolver.resolve();
});
caller.removeTrack(sender);
return Promise.all([
onremovetrackResolver.promise,
performOffer(caller, callee).then(() => {
eventSequence += 'setRemoteDescription;';
})
]).then(t.step_func(() => {
assert_equals(eventSequence, 'stream.onremovetrack;setRemoteDescription;');
t.done();
}));
});
return offerPromise;
}))
.catch(t.step_func(reason => {
assert_unreached(reason);
}));
}, 'stream.onremovetrack fires before setRemoteDescription resolves.');
async_test(t => {
const caller = new RTCPeerConnection();
const callee = new RTCPeerConnection();
return getUserMediaTracksAndStreams(1)
.then(t.step_func(([tracks, streams]) => {
const sender = caller.addTrack(tracks[0]);
assert_not_equals(sender, null);
const offerPromise = performOffer(caller, callee);
callee.ontrack = t.step_func(trackEvent => {
const remoteTrack = trackEvent.track;
caller.removeTrack(sender);
performOffer(caller, callee);
remoteTrack.onmute = t.step_func(() => {
assert_true(trackEvent.track.muted);
t.done();
});
});
return offerPromise;
}))
.catch(t.step_func(reason => {
assert_unreached(reason);
}));
}, 'removeTrack() makes track.onmute fire and the track to be muted.');
async_test(t => {
const caller = new RTCPeerConnection();
const callee = new RTCPeerConnection();
let eventSequence = '';
return getUserMediaTracksAndStreams(1)
.then(t.step_func(([tracks, streams]) => {
const sender = caller.addTrack(tracks[0]);
assert_not_equals(sender, null);
const offerPromise = performOffer(caller, callee);
callee.ontrack = t.step_func(trackEvent => {
const remoteTrack = trackEvent.track;
const onmuteResolver = new Resolver();
remoteTrack.onmute = t.step_func(() => {
eventSequence += 'track.onmute;';
onmuteResolver.resolve();
});
caller.removeTrack(sender);
return Promise.all([
onmuteResolver.promise,
performOffer(caller, callee).then(() => {
eventSequence += 'setRemoteDescription;';
})
]).then(t.step_func(() => {
assert_equals(eventSequence, 'track.onmute;setRemoteDescription;');
t.done();
}));
});
return offerPromise;
}))
.catch(t.step_func(reason => {
assert_unreached(reason);
}));
}, 'track.onmute fires before setRemoteDescription resolves.');
async_test(t => {
const pc = new RTCPeerConnection();
return getUserMediaTracksAndStreams(1)
.then(t.step_func(([tracks, streams]) => {
const sender = pc.addTrack(tracks[0]);
assert_not_equals(sender, null);
pc.removeTrack(sender);
pc.removeTrack(sender);
t.done();
}))
.catch(t.step_func(reason => {
assert_unreached(reason);
}));
}, 'removeTrack() twice is safe.');
</script>
|
