Tone.js/test/signal/Modulo.js

define(["helper/ConstantOutput", "Tone/signal/Modulo", "helper/Basic", 
	"Test", "Tone/signal/Signal"], 
	function (ConstantOutput, Modulo, Basic, Test, Signal) {

	describe("Modulo", function(){

		Basic(Modulo);

		context("Exponential Scaling", function(){

			it("handles input and output connections", function(){
				var mod = new Modulo();
				Test.connect(mod);
				mod.connect(Test);
				mod.dispose();
			});

			it("can evaluate 0.45 % 0.3", function(){
				return ConstantOutput(function(){
					var signal = new Signal(0.45);
					var mod = new Modulo(0.3);
					signal.connect(mod);
					mod.toMaster();
				}, 0.15);
			});

			it("can evaluate 0.1 % 0.2", function(){
				return ConstantOutput(function(){
					var signal = new Signal(0.1);
					var mod = new Modulo(0.2);
					signal.connect(mod);
					mod.toMaster();
				}, 0.1);
			});

			it("can set a new modulo value", function(){
				return ConstantOutput(function(){
					var signal = new Signal(0.4);
					var mod = new Modulo(0.1);
					mod.value = 0.35;
					expect(mod.value).to.be.closeTo(0.35, 0.001);
					signal.connect(mod);
					mod.toMaster();
				}, 0.05); 
			});
		});
	});
});