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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>
|
