зеркало из https://github.com/mozilla/gecko-dev.git
103 строки
2.3 KiB
HTML
103 строки
2.3 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<title>Audio-playback should be inactive when web-audio is silent</title>
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<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
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</head>
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<body>
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<script type="application/javascript;version=1.7">
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SimpleTest.waitForExplicitFinish();
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var generator = runTest();
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var expectedPlaybackActive = null;
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var expectedPlaying = null;
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var ac = new AudioContext();
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var audibleDuration = 3;
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var observerService = SpecialPowers.Cc["@mozilla.org/observer-service;1"]
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.getService(SpecialPowers.Ci.nsIObserverService);
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var observer = {
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observe: function(subject, topic, data) {
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is(topic, "audio-playback", "audio-playback received");
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is(data, expectedPlaybackActive, "Corrrect audible state");
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is(ac.state, expectedPlaying, "Corrrect playing state");
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continueTest();
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}
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};
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function continueTest() {
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try {
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generator.next();
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} catch (e if e instanceof StopIteration) {
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error("Stop test because of exception!");
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}
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}
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function playOscillatorNode() {
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var dest = ac.destination;
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var osc = ac.createOscillator();
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osc.connect(dest);
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osc.start(0);
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osc.stop(ac.currentTime + audibleDuration);
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}
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function audioPlayingStart() {
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observerService.addObserver(observer, "audio-playback", false);
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ok(true, "Observer set");
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expectedPlaybackActive = 'active';
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expectedPlaying = "running";
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info("Audio playing start");
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playOscillatorNode();
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}
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function audioBecomeSilentDuringPlaying() {
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info("Audio would become silent during playing");
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expectedPlaybackActive = 'inactive-pause';
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expectedPlaying = "running";
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}
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function finish() {
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observerService.removeObserver(observer, "audio-playback");
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ok(true, "Observer removed");
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SimpleTest.finish();
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}
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function startAudioContext() {
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if (ac.state != "running") {
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ac.resume();
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ac.onstatechange = function() {
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if (ac.state == "running") {
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ok(true, "AudioContext starts running!");
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ac.onstatechange = null;
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continueTest();
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}
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}
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} else {
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ok(true, "AudioContext is running!");
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continueTest();
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}
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}
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function runTest() {
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yield startAudioContext();
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yield audioPlayingStart();
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yield audioBecomeSilentDuringPlaying();
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yield finish();
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}
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continueTest();
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</script>
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</body>
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</html> |