<!DOCTYPE HTML>
<html>
<head>
  <title>Test when and currentTime are in the same coordinate system</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<pre id="test">
<script class="testbody" type="text/javascript">

SimpleTest.waitForExplicitFinish();
SimpleTest.requestFlakyTimeout("This test needs to wait a while for the AudioContext's timer to start.");
addLoadEvent(function() {
  var freq = 330;

  var context = new AudioContext();

  var buffer = context.createBuffer(1, context.sampleRate / freq, context.sampleRate);
  for (var i = 0; i < buffer.length; ++i) {
    buffer.getChannelData(0)[i] = Math.sin(2 * Math.PI * i / buffer.length);
  }

  var source = context.createBufferSource();
  source.loop = true;
  source.buffer = buffer;

  setTimeout(function () {
      var finished = false;

      source.start(context.currentTime);
      var processor = context.createScriptProcessor(256, 1, 1);
      processor.onaudioprocess = function (e) {
          if (finished) return;
          var c = e.inputBuffer.getChannelData(0);
          var result = true;

          for (var i = 0; i < buffer.length; ++i) {
              if (Math.abs(c[i] - buffer.getChannelData(0)[i]) > 1e-9) {
                  result = false;
                  break;
              }
          }
          finished = true;
          ok(result, "when and currentTime are in same time coordinate system");
          SimpleTest.finish();
      }
      processor.connect(context.destination);
      source.connect(processor);
  }, 500);
});

</script>
</pre>
</body>
</html>
