<!DOCTYPE html>
<html>
  <head>
    <title>
      Test AudioBufferSourceNode With Looping And Duration
    </title>
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
    <script src="/webaudio/resources/audit-util.js"></script>
    <script src="/webaudio/resources/audit.js"></script>
  </head>
  <body>
    <script id="layout-test-code">
      let audit = Audit.createTaskRunner();
      audit.define('loop with duration', (task, should) => {
        // Create the context
        let context = new OfflineAudioContext(1, 4096, 48000);

        // Create the sample buffer and fill the second half with 1
        let buffer = context.createBuffer(1, 2048, context.sampleRate);
        for (let i = 1024; i < 2048; i++) {
          buffer.getChannelData(0)[i] = 1;
        }

        // Create the source and set its value
        let source = context.createBufferSource();
        source.loop = true;
        source.loopStart = 1024 / context.sampleRate;
        source.loopEnd = 2048 / context.sampleRate;
        source.buffer = buffer;
        source.connect(context.destination);
        source.start(0, 1024 / context.sampleRate, 2048 / context.sampleRate);
        // Expectations
        let expected = new Float32Array(4096);
        for (let i = 0; i < 2048; i++) {
          expected[i] = 1;
        }
        // Render it!
        context.startRendering()
            .then(function(audioBuffer) {
              should(
                  audioBuffer.getChannelData(0), 'audioBuffer.getChannelData')
                  .beEqualToArray(expected);
            })
            .then(task.done());
      });

      audit.run();

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