third_party/WebKit/LayoutTests/http/tests/misc/webtiming-buffer-full-no-event.html

   1 <html>
   2 <head>
   3 <link rel="help" href="https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/ResourceTiming/Overview.html#extensions-performance-interface">
   4 <script src="/js-test-resources/js-test.js"></script>
   5 <script>
   6 description("This test checks that Performance inherits EventTarget and that addEventListener() works for resourcetimingbufferfull events.");
   7 window.jsTestIsAsync = true;
   8 var bufferFullCount = 0;
   9 var parameter;
  10
  11 function onBufferFull(event) {
  12     shouldBeNull('performance.onresourcetimingbufferfull');
  13     parameter = event;
  14     shouldBe('parameter.__proto__', 'Event.prototype');
  15     bufferFullCount++;
  16 }
  17
  18 shouldBe('Performance.prototype.__proto__', 'EventTarget.prototype');
  19
  20 performance.addEventListener('resourcetimingbufferfull', onBufferFull);
  21 shouldBeNull('performance.onresourcetimingbufferfull');
  22 performance.setResourceTimingBufferSize(2);
  23 </script>
  24 </head>
  25 <body>
  26 <script>
  27 function test() {
  28     // Make sure the onBufferFull callback was called exactly 1 time.
  29     shouldBe('bufferFullCount', '1');
  30     performance.removeEventListener('resourcetimingbufferfull', onBufferFull);
  31     finishJSTest();
  32 }
  33
  34 window.onload = test;
  35 </script>
  36 <script src="resources/empty-script.js"></script>
  37 </body>
  38 </html>