mirror of
https://github.com/Tonejs/Tone.js
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100 lines
No EOL
2.3 KiB
JavaScript
100 lines
No EOL
2.3 KiB
JavaScript
define(["helper/Offline", "Tone/signal/AudioToGain", "helper/Basic",
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"Test", "Tone/source/Oscillator", "Tone/signal/Signal"],
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function (Offline, AudioToGain, Basic, Test, Oscillator, Signal) {
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describe("AudioToGain", function(){
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Basic(AudioToGain);
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it("handles input and output connections", function(){
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var a2g = new AudioToGain();
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a2g.connect(Test);
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Test.connect(a2g);
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a2g.dispose();
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});
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it("normalizes an oscillator to 0,1", function(done){
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//make an oscillator to drive the signal
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var osc, a2g;
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var offline = new Offline();
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offline.before(function(dest){
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osc = new Oscillator(1000);
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a2g = new AudioToGain();
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osc.connect(a2g);
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a2g.connect(dest);
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});
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offline.test(function(sample){
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expect(sample).to.be.within(0, 1);
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});
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offline.after(function(){
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osc.dispose();
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a2g.dispose();
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done();
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});
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offline.run();
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});
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it("outputs 0.5 for an input value of 0", function(done){
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//make an oscillator to drive the signal
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var sig, a2g;
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var offline = new Offline();
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offline.before(function(dest){
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sig = new Signal(0);
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a2g = new AudioToGain();
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sig.connect(a2g);
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a2g.connect(dest);
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});
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offline.test(function(sample){
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expect(sample).to.be.closeTo(0.5, 0.01);
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});
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offline.after(function(){
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sig.dispose();
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a2g.dispose();
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done();
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});
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offline.run();
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});
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it("outputs 1 for an input value of 1", function(done){
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//make an oscillator to drive the signal
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var sig, a2g;
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var offline = new Offline();
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offline.before(function(dest){
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sig = new Signal(1);
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a2g = new AudioToGain();
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sig.connect(a2g);
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a2g.connect(dest);
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});
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offline.test(function(sample){
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expect(sample).to.be.closeTo(1, 0.01);
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});
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offline.after(function(){
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sig.dispose();
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a2g.dispose();
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done();
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});
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offline.run();
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});
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it("outputs 0 for an input value of -1", function(done){
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//make an oscillator to drive the signal
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var sig, a2g;
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var offline = new Offline();
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offline.before(function(dest){
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sig = new Signal(-1);
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a2g = new AudioToGain();
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sig.connect(a2g);
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a2g.connect(dest);
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});
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offline.test(function(sample){
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expect(sample).to.be.closeTo(0, 0.01);
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});
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offline.after(function(){
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sig.dispose();
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a2g.dispose();
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done();
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});
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offline.run();
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});
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});
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}); |