third_party/WebKit/LayoutTests/fast/compositorworker/compositor-proxy-disconnect-worker-terminate.html

   1 <!DOCTYPE html>
   2 <div id="container"></div>
   3 <script src="../../fast/workers/resources/worker-util.js"></script>
   4 <script src="../../resources/testharness.js"></script>
   5 <script src="../../resources/testharnessreport.js"></script>
   6 <script>
   7
   8 var test = async_test(function() {
   9     assert_not_equals('undefined', typeof window.internals);
  10     var worker = new CompositorWorker('resources/proxy-idle.js');
  11     worker.onmessage = function() {
  12         var docLayer = JSON.parse(window.internals.layerTreeAsText(document));
  13         assert_equals(1, docLayer.children.length);
  14         assert_equals(1, docLayer.children[0].children.length);
  15
  16         worker.terminate();
  17
  18         // Give some time for the worker to terminate.
  19         waitUntilWorkerThreadsExit(function() {
  20             docLayer = JSON.parse(window.internals.layerTreeAsText(document));
  21             assert_equals(1, docLayer.children.length);
  22             assert_equals('undefined', typeof docLayer.children[0].children);
  23             test.done();
  24         });
  25     }
  26
  27     var proxy = new CompositorProxy(document.getElementById('container'), ['opacity']);
  28     worker.postMessage(proxy);
  29
  30     var container = document.getElementById('container');
  31     var docLayer = JSON.parse(window.internals.layerTreeAsText(document));
  32     assert_equals(1, docLayer.children.length);
  33     assert_equals(1, docLayer.children[0].children.length);
  34     proxy.disconnect();
  35 }, "This test checks that an element's compositor proxy cannot be mutated after disconnect().");
  36
  37 </script>