mirror of
https://github.com/Tonejs/Tone.js
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30 lines
1,008 B
TypeScript
30 lines
1,008 B
TypeScript
import { expect } from "chai";
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import { Offline } from "test/helper/Offline";
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import { ToneAudioNode } from "Tone/core/context/ToneAudioNode";
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import { Signal } from "Tone/signal/Signal";
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/**
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* Make sure that the audio passes from input node
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* to the destination node
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*/
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export function PassAudio(
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callback: (input: ToneAudioNode) => void,
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passes = true
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): Promise<void> {
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const duration = 0.2;
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return Offline(() => {
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const sig = new Signal(0);
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callback(sig);
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sig.setValueAtTime(1, duration / 2);
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}, 0.2, 1).then(buffer => {
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expect(buffer.getValueAtTime(0)).to.be.closeTo(0, 0.001);
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expect(buffer.getValueAtTime(duration / 2 - 0.01)).to.be.closeTo(0, 0.001);
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if (passes) {
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expect(buffer.getValueAtTime(duration / 2 + 0.01)).to.not.equal(0);
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expect(buffer.getValueAtTime(duration - 0.01)).to.not.equal(0);
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} else {
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expect(buffer.getValueAtTime(duration / 2 + 0.01)).to.be.closeTo(0, 0.001);
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expect(buffer.getValueAtTime(duration - 0.01)).to.be.closeTo(0, 0.001);
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}
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});
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}
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