<!DOCTYPE HTML>
<html>
<head>
  <title>Test bug 1027864</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 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) {
      SimpleTest.executeSoon(function() {
        SimpleTest.finish();
      });
    }
  }
}

function id(node) {
  return SpecialPowers.getPrivilegedProps(node, "id");
}

SpecialPowers.addAsyncObserver(observer, "webaudio-node-demise", false);

SimpleTest.registerCleanupFunction(function() {
  SpecialPowers.removeAsyncObserver(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>
