LayoutTests/webaudio/delaynode-maxdelaylimit.html

   1 <!DOCTYPE html>
   2
   3 <html>
   4 <head>
   5 <script src="../fast/js/resources/js-test-pre.js"></script>
   6 <script src="resources/audio-testing.js"></script>
   7 <script src="resources/delay-testing.js"></script>
   8 </head>
   9
  10 <body>
  11
  12 <div id="description"></div>
  13 <div id="console"></div>
  14
  15 <script>
  16 description("Tests attribute and maximum allowed delay of DelayNode.");
  17
  18 function runTest() {
  19     if (window.testRunner) {
  20         testRunner.dumpAsText();
  21         testRunner.waitUntilDone();
  22     }
  23
  24     window.jsTestIsAsync = true;
  25
  26     // Create offline audio context.
  27     var context = new webkitOfflineAudioContext(1, sampleRate * renderLengthSeconds, sampleRate);
  28     var toneBuffer = createToneBuffer(context, 20, 20 * toneLengthSeconds, sampleRate); // 20Hz tone
  29
  30     var bufferSource = context.createBufferSource();
  31     bufferSource.buffer = toneBuffer;
  32
  33     window.context = context;
  34     shouldThrow("context.createDelay(180)");
  35     shouldThrow("context.createDelay(0)");
  36     shouldThrow("context.createDelay(-1)");
  37
  38     var delay = context.createDelay(179);
  39     delay.delayTime.value = delayTimeSeconds;
  40     window.delay = delay;
  41     shouldBeTrue("delay.delayTime.value === 0.5");
  42
  43     bufferSource.connect(delay);
  44     delay.connect(context.destination);
  45     bufferSource.start(0);
  46
  47     context.oncomplete = checkDelayedResult(toneBuffer);
  48     context.startRendering();
  49 }
  50
  51 runTest();
  52
  53 </script>
  54
  55 <script src="../fast/js/resources/js-test-post.js"></script>
  56 </body>
  57 </html>