Source code
Revision control
Copy as Markdown
Other Tools
Test Info: Warnings
- This test runs only with pattern: os != 'android'
- Manifest: dom/media/webrtc/tests/mochitests/mochitest_getusermedia.toml
<!DOCTYPE HTML>
<html>
<head>
<script type="application/javascript" src="mediaStreamPlayback.js"></script>
</head>
<body>
<pre id="test">
<script type="application/javascript">
createHTML({
bug: "2063642",
title: "getUserMedia records the actually granted display-capture source, not just the requested one",
});
const Services = SpecialPowers.Services;
async function gleanResetTestValues() {
return SpecialPowers.spawnChrome([], async () => {
await Services.fog.testFlushAllChildren();
Services.fog.testResetFOG();
});
}
async function grantedCountFor(label) {
await SpecialPowers.spawnChrome([], async () => {
await Services.fog.testFlushAllChildren();
});
return (
(await GleanTest.webrtc.getUserMediaSourceGranted[label].testGetValue()) ??
0
);
}
async function checkGrant(constraints, label, description) {
const before = await grantedCountFor(label);
SpecialPowers.wrap(document).notifyUserGestureActivation();
const stream = await getUserMedia(constraints);
const after = await grantedCountFor(label);
is(after, before + 1, description);
for (const track of stream.getTracks()) {
track.stop();
}
}
// getDisplayMedia() always requests mediaSource "screen" internally
// (MediaDevices::GetDisplayMedia), so this exercises the same "screen"
// label as the checkGrant() call below it, but through the actual
// getDisplayMedia() entry point instead of getUserMedia() with an
// explicit mediaSource constraint.
async function checkGrantDisplayMedia(description) {
const label = "screen";
const before = await grantedCountFor(label);
SpecialPowers.wrap(document).notifyUserGestureActivation();
const stream = await navigator.mediaDevices.getDisplayMedia({
video: true,
});
const after = await grantedCountFor(label);
is(after, before + 1, description);
for (const track of stream.getTracks()) {
track.stop();
}
}
runTest(async () => {
await gleanResetTestValues();
await checkGrantDisplayMedia(
"Granting a getDisplayMedia request should record a screen grant"
);
await checkGrant(
{ video: { mediaSource: "screen" } },
"screen",
"Granting a screen-sharing gUM request should record a screen grant"
);
await checkGrant(
{ video: { mediaSource: "window" } },
"window",
"Granting a window-sharing gUM request should record a window grant"
);
await checkGrant(
{ video: { mediaSource: "browser" } },
"browser",
"Granting a tab-sharing gUM request should record a browser grant"
);
});
</script>
</pre>
</body>
</html>