LayoutTests/webaudio/delaynode.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 basic functionality of Delay.");
  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     var delay = context.createDelay();
  34
  35     window.delay = delay;
  36     shouldBeTrue("delay.numberOfInputs === 1");
  37     shouldBeTrue("delay.numberOfOutputs === 1");
  38     shouldBeTrue("delay.delayTime.defaultValue === 0.0");
  39     shouldBeTrue("delay.delayTime.minValue === 0.0");
  40     shouldBeTrue("delay.delayTime.maxValue === 1.0");
  41     shouldBeTrue("delay.delayTime.value === 0.0");
  42
  43     delay.delayTime.value = delayTimeSeconds;
  44     shouldBeTrue("delay.delayTime.value === 0.5");
  45
  46     bufferSource.connect(delay);
  47     delay.connect(context.destination);
  48     bufferSource.noteOn(0);
  49
  50     context.oncomplete = checkDelayedResult(toneBuffer);
  51     context.startRendering();
  52 }
  53
  54 runTest();
  55
  56 </script>
  57
  58 <script src="../fast/js/resources/js-test-post.js"></script>
  59 </body>
  60 </html>