audioparam-default-value.window.js

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This WPT test may be referenced by the following Test IDs:
- /webaudio/the-audio-api/the-audioparam-interface/audioparam-default-value.window.html - WPT Dashboard Interop Dashboard

'use strict';

test(() => {

  const context = new OfflineAudioContext(1, 1, 44100);

  const gainNode = new GainNode(context);

  assert_equals(gainNode.gain.defaultValue, 1,

      'GainNode.gain.defaultValue should be 1.');

}, 'AudioParam: defaultValue attribute value');

test(() => {

  const context = new OfflineAudioContext(1, 1, 44100);

  const gainNode = new GainNode(context);

  assert_readonly(gainNode.gain, 'defaultValue');

}, 'AudioParam: defaultValue is a read-only attribute');

test(() => {

  const context = new OfflineAudioContext(1, 1, 44100);

  const initialValue = -1;

  const gainNode = new GainNode(context, {

    gain: initialValue,

});

  assert_equals(gainNode.gain.value, initialValue,

      'GainNode.gain.value should be initialized to the value ' +

      'from the constructor.');

}, 'AudioParam: value attribute is initialized correctly');