Tone.js/test/helper/OscillatorTests.js
2017-12-29 13:50:57 -05:00

66 lines
1.7 KiB
JavaScript

define(["helper/OutputAudio", "Tone/source/Oscillator", "helper/Offline", "Test"],
function (OutputAudio, Oscillator, Offline, Test) {
return function(Constr, args){
context("Oscillator Tests", function(){
it("can be created with an options object", function(){
var instance = new Constr({
"frequency" : 200,
"detune" : -20
});
expect(instance.frequency.value).to.equal(200);
expect(instance.detune.value).to.equal(-20);
instance.dispose();
});
it("can set/set the frequency", function(){
var instance = new Constr(args);
instance.frequency.value = 110;
expect(instance.frequency.value).to.equal(110);
instance.start();
instance.frequency.value = 220;
expect(instance.frequency.value).to.equal(220);
instance.dispose();
});
it("can set/set the detune", function(){
var instance = new Constr(args);
instance.detune.value = -50;
expect(instance.detune.value).to.equal(-50);
instance.start();
instance.detune.value = 92;
expect(instance.detune.value).to.equal(92);
instance.dispose();
});
it("can connect to detune and frequency", function(){
var instance = new Constr(args);
Test.connect(instance.frequency);
Test.connect(instance.detune);
instance.dispose();
});
it ("can get/set the phase", function(){
var osc = new Constr({
"phase" : 180,
});
expect(osc.phase).to.be.closeTo(180, 0.001);
osc.phase = 270;
expect(osc.phase).to.be.closeTo(270, 0.001);
osc.dispose();
});
it ("does not clip in volume", function(){
return Offline(function(){
new Constr(args).toMaster().start(0);
}).then(function(buffer){
expect(buffer.max()).to.be.at.most(1);
});
});
});
};
});