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+<!DOCTYPE HTML>
+<html>
+<head>
+ <title>Test the devtool AudioNode API</title>
+ <script 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 id(node) {
+ return SpecialPowers.getPrivilegedProps(node, "id");
+ }
+
+ var ac = new AudioContext();
+ var ids;
+ var weak;
+ (function() {
+ var src1 = ac.createBufferSource();
+ var src2 = ac.createBufferSource();
+ ok(id(src2) > id(src1), "The ID should be monotonic");
+ ok(id(src1) > id(ac.destination), "The ID of the destination node should be the lowest");
+ ids = [id(src1), id(src2)];
+ weak = SpecialPowers.Cu.getWeakReference(src1);
+ is(SpecialPowers.unwrap(weak.get()), src1, "The node should support a weak reference");
+ })();
+ function observer(subject, topic, data) {
+ var id = parseInt(data);
+ var index = ids.indexOf(id);
+ if (index != -1) {
+ info("Dropping id " + id + " at index " + index);
+ ids.splice(index, 1);
+ if (!ids.length) {
+ SimpleTest.executeSoon(function() {
+ is(weak.get(), null, "The weak reference must be dropped now");
+ SpecialPowers.removeObserver(observer, "webaudio-node-demise");
+ SimpleTest.finish();
+ });
+ }
+ }
+ }
+ SpecialPowers.addObserver(observer, "webaudio-node-demise");
+
+ forceCC();
+ forceCC();
+
+ function forceCC() {
+ SpecialPowers.DOMWindowUtils.cycleCollect();
+ SpecialPowers.DOMWindowUtils.garbageCollect();
+ SpecialPowers.DOMWindowUtils.garbageCollect();
+ }
+
+</script>
+</pre>
+</body>
+</html>