third_party/WebKit/LayoutTests/webaudio/cycle-connection-gc.html

   1 <!DOCTYPE html>
   2 <script src="../resources/js-test.js"></script>
   3 <script>
   4 description('Cycles of AudioNode connections should be collected.');
   5 var context = new OfflineAudioContext(2, 44100, 44100);
   6 gc();
   7 var initialCount = internals.audioHandlerCount();
   8 createCycle();
   9 debug('A cycle was created:');
  10 shouldBeTrue('internals.audioHandlerCount() > initialCount');
  11 gc();
  12 debug('GC happened:');
  13 shouldBe('internals.audioHandlerCount()', 'initialCount');
  14
  15 function createCycle() {
  16     var source = context.createBufferSource();
  17     var delay1 = context.createDelay();
  18     var delay2 = context.createDelay();
  19     source.connect(delay1);
  20     delay1.connect(delay2);
  21     delay2.connect(delay1);
  22     delay1.connect(context.destination);
  23 }
  24 </script>