Bug 1404977 - Tests P2: Add test to ensure multiple gUM calls in a single window will work. r?pehrsons
MozReview-Commit-ID: 8ESMN0rNBTE
--- a/dom/media/tests/mochitest/mochitest.ini
+++ b/dom/media/tests/mochitest/mochitest.ini
@@ -82,16 +82,18 @@ skip-if = android_version == '18' # andr
[test_getUserMedia_mediaElementCapture_video.html]
skip-if = android_version == '18' # android(Bug 1189784, timeouts on 4.3 emulator)
[test_getUserMedia_mediaStreamClone.html]
skip-if = toolkit == 'android' && debug # Bug 1282262
[test_getUserMedia_mediaStreamConstructors.html]
[test_getUserMedia_mediaStreamTrackClone.html]
[test_getUserMedia_multipleIframes.html]
skip-if = os == 'mac' || os == 'win' || toolkit == 'android' # Bug 1404995, no loopback devices on some platforms
+[test_getUserMedia_multipleStreamsDifferentConstraints.html]
+skip-if = os == 'mac' || os == 'win' || toolkit == 'android' # Bug 1404995, no loopback devices on some platforms
[test_getUserMedia_playAudioTwice.html]
[test_getUserMedia_playVideoAudioTwice.html]
[test_getUserMedia_playVideoTwice.html]
[test_getUserMedia_scarySources.html]
skip-if = toolkit == 'android' # no screenshare or windowshare on android
[test_getUserMedia_spinEventLoop.html]
[test_getUserMedia_stopAudioStream.html]
[test_getUserMedia_stopAudioStreamWithFollowupAudio.html]
new file mode 100644
--- /dev/null
+++ b/dom/media/tests/mochitest/test_getUserMedia_multipleStreamsDifferentConstraints.html
@@ -0,0 +1,91 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+ <script type="application/javascript" src="mediaStreamPlayback.js"></script>
+</head>
+<body>
+<pre id="test">
+<script type="application/javascript">
+ createHTML({
+ title: "getUserMedia Multiple Times with Different Constraints",
+ bug: "1404977"
+ });
+ /**
+ * Verify that multiple gUM calls with different constaints can be performed
+ */
+ runTest(async function() {
+ // Compare constraints and return a string with the differences in
+ // echoCancellation, autoGainControl, and noiseSuppression. The string
+ // will be empty if there are no differences.
+ function getConstraintDifferenceString(constraints, otherConstraints) {
+ let diffString = "";
+ if (constraints.echoCancellation != otherConstraints.echoCancellation) {
+ diffString += "echoCancellation different, ";
+ }
+ if (constraints.autoGainControl != otherConstraints.autoGainControl) {
+ diffString += "autoGainControl different, ";
+ }
+ if (constraints.noiseSuppression != otherConstraints.noiseSuppression) {
+ diffString += "noiseSuppression different, ";
+ }
+ // Replace trailing comma and space if any
+ return diffString.replace(/, $/, "");
+ }
+
+ // We need a real device to get a MediaEngine supporting constraints
+ let audioDevice = SpecialPowers.getCharPref("media.audio_loopback_dev", "");
+ if (!audioDevice) {
+ ok(false, "No device set by framework. Try --use-test-media-devices");
+ return;
+ }
+
+ let requestedConstraints = [
+ true,
+ { echoCancellation: true },
+ { autoGainControl: true },
+ { noiseSuppression: true },
+ { echoCancellation: true, autoGainControl: true },
+ { echoCancellation: true, autoGainControl: true, noiseSuppression: true },
+ ];
+ let gumStreams = [];
+ let playMediaPromises = [];
+
+ for (let i = 0; i < requestedConstraints.length; i++) {
+ try {
+ let stream = await getUserMedia({audio: requestedConstraints[i]});
+ gumStreams.push(stream);
+ let differenceString = getConstraintDifferenceString(
+ requestedConstraints[i],
+ stream.getAudioTracks()[0].getSettings());
+ ok(!differenceString,
+ `Stream at index ${i} should have the same constraints as were ` +
+ `requested from gUM. Differences: ${differenceString}`);
+ } catch (e) {
+ ok(false, `getUserMedia calls should not fail! Failed at call#: ${i} with: ${e}!`);
+ }
+ }
+ is(gumStreams.length, requestedConstraints.length, "Should have a stream for each constraint");
+
+ // For each stream we've got from a gUM call make sure the constraints
+ // haven't been mutated by other gUM calls
+ for (let i = 0; i < gumStreams.length; i++) {
+ let differenceString = getConstraintDifferenceString(
+ requestedConstraints[i],
+ gumStreams[i].getAudioTracks()[0].getSettings());
+ ok(!differenceString,
+ `Stream at index ${i} should not have had constraints altered after ` +
+ `all gUM calls are done. Differences: ${differenceString}`);
+ }
+
+ for (let i = 0; i < gumStreams.length; i++) {
+ let testAudio = createMediaElement("audio", `testAudio${i}`);
+ let playback = new LocalMediaStreamPlayback(testAudio, gumStreams[i]);
+ playMediaPromises.push(playback.playMedia(false));
+ }
+
+ await Promise.all(playMediaPromises);
+ });
+</script>
+</pre>
+</body>
+</html>
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