third_party/WebKit/LayoutTests/webaudio/scriptprocessornode-detached-no-crash.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <head>
   4 <script src="resources/compatibility.js"></script>
   5 <script src="resources/audio-testing.js"></script>
   6 <script src="../resources/js-test.js"></script>
   7 </head>
   8 <body>
   9 <script>
  10 description("Tests document-detached use of AudioContext, pass if no crash.");
  11
  12 window.jsTestIsAsync = true;
  13
  14 var sampleRate = 44100.0;
  15 var renderLengthInFrames = 512;
  16 var bufferSize = 512;
  17 var context;
  18 var node;
  19 function runTest()
  20 {
  21     try {
  22         node = context.createScriptProcessor(bufferSize, 0, 1);
  23         var source = context.createBufferSource();
  24         source.buffer = createImpulseBuffer(context, bufferSize);
  25         node.onaudioprocess = function(e) { };
  26         source.connect(node);
  27         node.connect(context.destination);
  28         source.start(0);
  29
  30         context.startRendering();
  31     } catch (e) {
  32         // The context has been stopped and detached; nothing to test.
  33         return;
  34     }
  35 }
  36
  37 var w;
  38 function processMessage(event) {
  39     if (event.data == "opened") {
  40         context = new w.OfflineAudioContext(1, renderLengthInFrames, sampleRate);
  41         w.close();
  42     } else if (event.data == "closed") {
  43         runTest();
  44         finishJSTest();
  45     }
  46 }
  47
  48 if (window.testRunner) {
  49     testRunner.dumpAsText();
  50     testRunner.waitUntilDone();
  51     testRunner.setCanOpenWindows();
  52 }
  53
  54 w = window.open('../resources/window-postmessage-open-close.html');
  55 window.addEventListener("message", processMessage, false);
  56 </script>
  57 </body>
  58 </html>