waveshaper-simple.html

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This WPT test may be referenced by the following Test IDs:
- /webaudio/the-audio-api/the-waveshapernode-interface/waveshaper-simple.html - WPT Dashboard Interop Dashboard

<!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>