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diff --git a/dom/media/webaudio/test/test_bug1027864.html b/dom/media/webaudio/test/test_bug1027864.html
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+<!DOCTYPE HTML>
+<html>
+<head>
+ <title>Test bug 1027864</title>
+ <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<pre id="test">
+<script class="testbody" type="text/javascript">
+
+SimpleTest.waitForExplicitFinish();
+
+function observer(subject, topic, data) {
+ var id = parseInt(data);
+ var index = ids.indexOf(id);
+ if (index != -1) {
+ ok(true, "Dropping id " + id + " at index " + index);
+ ids.splice(index, 1);
+ if (ids.length == 0) {
+ SimpleTest.executeSoon(function() {
+ SimpleTest.finish();
+ });
+ }
+ }
+}
+
+function id(node) {
+ return SpecialPowers.getPrivilegedProps(node, "id");
+}
+
+SpecialPowers.addObserver(observer, "webaudio-node-demise", false);
+
+SimpleTest.registerCleanupFunction(function() {
+ SpecialPowers.removeObserver(observer, "webaudio-node-demise");
+});
+
+var ac = new AudioContext();
+var ids;
+
+(function() {
+ var delay = ac.createDelay();
+ delay.delayTime.value = 0.03;
+
+ var gain = ac.createGain();
+ gain.gain.value = 0.6;
+
+ delay.connect(gain);
+ gain.connect(delay);
+
+ gain.connect(ac.destination);
+
+ var source = ac.createOscillator();
+
+ source.connect(gain);
+ source.start(ac.currentTime);
+ source.stop(ac.currentTime + 0.1);
+
+ ids = [ id(delay), id(gain), id(source) ];
+})();
+
+setInterval(function() {
+ forceCC();
+}, 200);
+
+function forceCC() {
+ SpecialPowers.DOMWindowUtils.cycleCollect();
+ SpecialPowers.DOMWindowUtils.garbageCollect();
+}
+
+</script>
+</pre>
+</body>
+</html>