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Test Info:
- Manifest: dom/media/test/mochitest.toml
<!DOCTYPE HTML>
<html>
<head>
<title>Test track interfaces when consuming a MediaStream from gUM</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<script type="text/javascript" src="manifest.js"></script>
<script type="text/javascript" src="gUM_support.js"></script>
</head>
<body>
<pre id="test">
<script class="testbody" type="text/javascript">
async function startTest() {
let steps = 0;
let audioOnchange = 0;
let audioOnaddtrack = 0;
let videoOnchange = 0;
let videoOnaddtrack = 0;
let isPlaying = false;
let element = document.createElement("video");
let stream;
try {
await setupGetUserMediaTestPrefs();
stream = await navigator.mediaDevices.getUserMedia({audio: true, video: true});
} catch (err) {
ok(false, 'Unexpected error fired with: ' + err);
SimpleTest.finish();
return;
}
element.audioTracks.onaddtrack = function() {
audioOnaddtrack++;
};
element.audioTracks.onchange = function() {
audioOnchange++;
};
element.videoTracks.onaddtrack = function() {
videoOnaddtrack++;
};
element.videoTracks.onchange = function() {
videoOnchange++;
};
function checkTrackRemoved() {
if (isPlaying) {
is(element.audioTracks.length, 0, 'The length of audioTracks should be 0.');
is(element.videoTracks.length, 0, 'The length of videoTracks should be 0.');
}
}
element.onended = function() {
ok(true, 'Event ended is expected to be fired on element.');
checkTrackRemoved();
element.onended = null;
element.onplaying = null;
element.onpause = null;
SimpleTest.finish();
}
function checkTrackAdded() {
isPlaying = true;
is(audioOnaddtrack, 1, 'Calls of onaddtrack on audioTracks should be 1.');
is(element.audioTracks.length, 1, 'The length of audioTracks should be 1.');
ok(element.audioTracks[0].enabled, 'Audio track should be enabled as default.');
is(videoOnaddtrack, 1, 'Calls of onaddtrack on videoTracks should be 1.');
is(element.videoTracks.length, 1, 'The length of videoTracks should be 1.');
is(element.videoTracks.selectedIndex, 0,
'The first video track is set selected as default.');
}
function setTrackEnabled(enabled) {
element.audioTracks[0].enabled = enabled;
element.videoTracks[0].selected = enabled;
}
function checkTrackChanged(calls, enabled) {
is(audioOnchange, calls, 'Calls of onchange on audioTracks should be '+calls);
is(element.audioTracks[0].enabled, enabled,
'Enabled value of the audio track should be ' +enabled);
is(videoOnchange, calls, 'Calls of onchange on videoTracks should be '+calls);
is(element.videoTracks[0].selected, enabled,
'Selected value of the video track should be ' +enabled);
var index = enabled ? 0 : -1;
is(element.videoTracks.selectedIndex, index,
'SelectedIndex of video tracks should be ' +index);
}
function onpause() {
element.onpause = null;
if (element.ended) {
return;
}
if (steps == 1) {
setTrackEnabled(false);
element.onplaying = onplaying;
element.play();
steps++;
} else if (steps == 2) {
setTrackEnabled(true);
element.onplaying = onplaying;
element.play();
steps++;
}
}
function onplaying() {
element.onplaying = null;
if (element.ended) {
return;
}
if (steps == 1) {
element.onpause = onpause;
element.pause();
checkTrackAdded();
} else if (steps == 2) {
element.onpause = onpause;
element.pause();
checkTrackChanged(1, false);
} else if (steps == 3) {
checkTrackChanged(2, true);
stream.getTracks().forEach(t => t.stop());
}
}
element.onplaying = onplaying;
element.srcObject = stream;
steps++;
await element.play();
}
SimpleTest.waitForExplicitFinish();
SpecialPowers.pushPrefEnv(
{
"set": [
["media.track.enabled", true]
]
}, startTest);
</script>
</pre>
</body>
</html>