<!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>
