<!DOCTYPE html>
<html>
  <head>
    <title>
      Simple Tests of WaveShaperNode
    </title>
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
    <script src="../../resources/audit-util.js"></script>
    <script src="../../resources/audit.js"></script>
  </head>
  <body>
    <script id="layout-test-code">
      let audit = Audit.createTaskRunner();

      audit.define('simple', (task, should) => {
        let context = new OfflineAudioContext(1, 1, 48000);
        let shaper = context.createWaveShaper();

        // Verify default values are correct.
        should(shaper.curve, 'Initial WaveShaper.curve').beEqualTo(null);
        should(shaper.oversample, 'Initial WaveShaper.oversample')
            .beEqualTo('none');

        // Set oversample and verify that it is set correctly.
        should(() => shaper.oversample = '2x', 'Setting oversample to "2x"')
            .notThrow();
        should(shaper.oversample, 'Waveshaper.oversample = "2x"')
            .beEqualTo('2x');

        should(() => shaper.oversample = '4x', 'Setting oversample to "4x"')
            .notThrow();
        should(shaper.oversample, 'Waveshaper.oversample = "4x"')
            .beEqualTo('4x');

        should(
            () => shaper.oversample = 'invalid',
            'Setting oversample to "invalid"')
            .notThrow();
        should(shaper.oversample, 'Waveshaper.oversample = "invalid"')
            .beEqualTo('4x');

        // Set the curve and verify that the returned curve is the same as what
        // it was set to.
        let curve = Float32Array.from([-1, 0.25, .75]);
        should(() => shaper.curve = curve, 'Setting curve to [' + curve + ']')
            .notThrow();
        should(shaper.curve, 'WaveShaper.curve').beEqualToArray(curve);

        // Verify setting the curve to null works.
        should(() => shaper.curve = null, 'Setting curve back to null')
            .notThrow();
        should(shaper.curve, 'Waveshaper.curve = null').beEqualTo(null);

        task.done();
      });

      audit.run();
    </script>
  </body>
</html>
