mirror of
https://github.com/Tonejs/Tone.js
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77 lines
2.3 KiB
JavaScript
77 lines
2.3 KiB
JavaScript
define(["Tone/effect/Tremolo", "helper/Basic", "helper/EffectTests", "helper/Offline"],
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function (Tremolo, Basic, EffectTests, Offline) {
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describe("Tremolo", function(){
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Basic(Tremolo);
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EffectTests(Tremolo);
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context("API", function(){
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it("can pass in options in the constructor", function(){
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var tremolo = new Tremolo({
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"depth" : 0.2,
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"type" : "sawtooth",
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"spread" : 160,
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});
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expect(tremolo.depth.value).to.be.closeTo(0.2, 0.001);
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expect(tremolo.type).to.equal("sawtooth");
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expect(tremolo.spread).to.equal(160);
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tremolo.dispose();
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});
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it("can be started and stopped", function(){
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var tremolo = new Tremolo();
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tremolo.start().stop("+0.2");
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tremolo.dispose();
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});
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it("can get/set the options", function(){
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var tremolo = new Tremolo();
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tremolo.set({
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"frequency" : 2.4,
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"type" : "triangle"
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});
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expect(tremolo.get().frequency).to.be.closeTo(2.4, 0.01);
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expect(tremolo.get().type).to.equal("triangle");
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tremolo.dispose();
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});
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it("can set the frequency and depth", function(){
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var tremolo = new Tremolo();
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tremolo.depth.value = 0.4;
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tremolo.frequency.value = 0.4;
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expect(tremolo.depth.value).to.be.closeTo(0.4, 0.01);
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expect(tremolo.frequency.value).to.be.closeTo(0.4, 0.01);
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tremolo.dispose();
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});
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it("can sync the frequency to the Transport", function(){
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return Offline(function(Transport){
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var tremolo = new Tremolo(2);
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tremolo.sync();
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tremolo.frequency.toMaster();
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Transport.bpm.setValueAtTime(Transport.bpm.value * 2, 0.05);
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// Transport.start(0)
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}, 0.1).then(function(buffer){
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expect(buffer.getValueAtTime(0)).to.be.closeTo(2, 0.1);
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expect(buffer.getValueAtTime(0.05)).to.be.closeTo(4, 0.1);
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});
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});
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it("can unsync the frequency to the Transport", function(){
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return Offline(function(Transport){
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var tremolo = new Tremolo(2);
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tremolo.sync();
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tremolo.frequency.toMaster();
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Transport.bpm.setValueAtTime(Transport.bpm.value * 2, 0.05);
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tremolo.unsync();
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}, 0.1).then(function(buffer){
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expect(buffer.getValueAtTime(0)).to.be.closeTo(2, 0.1);
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expect(buffer.getValueAtTime(0.05)).to.be.closeTo(2, 0.1);
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});
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});
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});
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});
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});
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