mirror of
https://github.com/Tonejs/Tone.js
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85 lines
2.5 KiB
TypeScript
85 lines
2.5 KiB
TypeScript
import { expect } from "chai";
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import { BasicTests } from "test/helper/Basic";
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import { CompareToFile } from "test/helper/CompareToFile";
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import { connectFrom, connectTo } from "test/helper/Connect";
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import { OscillatorTests } from "test/helper/OscillatorTests";
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import { SourceTests } from "test/helper/SourceTests";
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import { FMOscillator } from "./FMOscillator";
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describe("FMOscillator", () => {
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// run the common tests
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BasicTests(FMOscillator);
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SourceTests(FMOscillator);
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OscillatorTests(FMOscillator);
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it("matches a file", () => {
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return CompareToFile(() => {
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const osc = new FMOscillator().toDestination();
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osc.start(0);
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}, "fmOscillator.wav", 0.01);
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});
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context("Frequency Modulation", () => {
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it("can pass in parameters in the constructor", () => {
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const fmOsc = new FMOscillator({
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harmonicity : 3,
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modulationType : "square3",
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type : "triangle2",
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});
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expect(fmOsc.type).to.equal("triangle2");
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expect(fmOsc.harmonicity.value).to.be.closeTo(3, 0.001);
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expect(fmOsc.modulationType).to.equal("square3");
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fmOsc.dispose();
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});
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it("can set the harmonicity", () => {
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const fmOsc = new FMOscillator();
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fmOsc.harmonicity.value = 0.2;
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expect(fmOsc.harmonicity.value).to.be.closeTo(0.2, 0.001);
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fmOsc.dispose();
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});
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it("can set the modulationIndex", () => {
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const fmOsc = new FMOscillator({
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modulationIndex : 3,
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});
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expect(fmOsc.modulationIndex.value).to.be.closeTo(3, 0.001);
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fmOsc.modulationIndex.value = 0.2;
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expect(fmOsc.modulationIndex.value).to.be.closeTo(0.2, 0.001);
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fmOsc.dispose();
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});
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it("can connect a signal to the harmonicity", () => {
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const fmOsc = new FMOscillator();
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connectFrom().connect(fmOsc.harmonicity);
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fmOsc.dispose();
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});
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it("can set the modulationType", () => {
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const fmOsc = new FMOscillator();
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fmOsc.modulationType = "triangle5";
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expect(fmOsc.modulationType).to.equal("triangle5");
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fmOsc.dispose();
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});
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it("can get/set the baseType", () => {
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const osc = new FMOscillator();
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osc.type = "sine5";
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expect(osc.baseType).to.equal("sine");
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osc.baseType = "triangle";
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expect(osc.type).to.equal("triangle5");
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expect(osc.partialCount).to.equal(5);
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osc.partialCount = 2;
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expect(osc.type).to.equal("triangle2");
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osc.baseType = "custom";
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expect(osc.type).to.equal("custom");
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osc.partials = [1, 2, 3];
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expect(osc.baseType).to.equal("custom");
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osc.baseType = "square";
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expect(osc.type).to.equal("square");
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osc.dispose();
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});
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});
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});
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