Source code
Revision control
Copy as Markdown
Other Tools
Test Info:
<!DOCTYPE HTML>
<html>
<head>
<script type="application/javascript" src="mediaStreamPlayback.js"></script>
</head>
<body>
<pre id="test">
<script type="application/javascript">
"use strict";
createHTML({
title: "MediaStream's 'addtrack' and 'removetrack' events shouldn't fire on manual operations",
bug: "1208328"
});
var spinEventLoop = () => new Promise(r => setTimeout(r, 0));
var stream;
var clone;
var newStream;
var tracks = [];
var addTrack = track => {
info("Adding track " + track.id);
stream.addTrack(track);
};
var removeTrack = track => {
info("Removing track " + track.id);
stream.removeTrack(track);
};
var stopTrack = track => {
if (track.readyState == "live") {
info("Stopping track " + track.id);
}
track.stop();
};
runTest(() => getUserMedia({audio: true, video: true})
.then(s => {
stream = s;
clone = s.clone();
stream.addEventListener("addtrack", function onAddtrack(event) {
ok(false, "addtrack fired unexpectedly for track " + event.track.id);
});
stream.addEventListener("removetrack", function onRemovetrack(event) {
ok(false, "removetrack fired unexpectedly for track " + event.track.id);
});
return getUserMedia({audio: true, video: true});
})
.then(s => {
newStream = s;
info("Stopping an original track");
stopTrack(stream.getTracks()[0]);
return spinEventLoop();
})
.then(() => {
info("Removing original tracks");
stream.getTracks().forEach(t => {
stream.removeTrack(t);
return tracks.push(t);
});
return spinEventLoop();
})
.then(() => {
info("Adding other gUM tracks");
newStream.getTracks().forEach(t => addTrack(t))
return spinEventLoop();
})
.then(() => {
info("Adding cloned tracks");
let clone = stream.clone();
clone.getTracks().forEach(t => addTrack(t));
return spinEventLoop();
})
.then(() => {
info("Removing a clone");
removeTrack(clone.getTracks()[0]);
return spinEventLoop();
})
.then(() => {
info("Stopping clones");
clone.getTracks().forEach(t => stopTrack(t));
return spinEventLoop();
})
.then(() => {
info("Stopping originals");
stream.getTracks().forEach(t => stopTrack(t));
tracks.forEach(t => stopTrack(t));
return spinEventLoop();
})
.then(() => {
info("Removing remaining tracks");
stream.getTracks().forEach(t => removeTrack(t));
return spinEventLoop();
})
.then(() => {
// Test MediaStreamTrackEvent required args here.
mustThrowWith("MediaStreamTrackEvent without required args",
"TypeError", () => new MediaStreamTrackEvent("addtrack", {}));
}));
</script>
</pre>
</body>
</html>