Tone.js/test/signal/GreaterThanZero.js

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

	describe("GreaterThanZero", function(){

		Basic(GreaterThanZero);

		describe("Comparison", function(){

			it("Outputs 0 when the value is less than 0", function(){
				return ConstantOutput(function(){
					var signal = new Signal(-1);
					var gtz = new GreaterThanZero();
					signal.connect(gtz);
					gtz.toMaster();
				}, 0);
			});

			it("Outputs 1 when the value is greater than 0", function(){
				return ConstantOutput(function(){
					var signal = new Signal(1);
					var gtz = new GreaterThanZero();
					signal.connect(gtz);
					gtz.toMaster();
				}, 1);
			});

			it("Outputs 0 when the value is equal to 0", function(){
				return ConstantOutput(function(){
					var signal = new Signal(0);
					var gtz = new GreaterThanZero();
					signal.connect(gtz);
					gtz.toMaster();
				}, 0);
			});

			it("Outputs 1 when the value is slightly above 0", function(){
				return ConstantOutput(function(){
					var signal = new Signal(0.001);
					var gtz = new GreaterThanZero();
					signal.connect(gtz);
					gtz.toMaster();
				}, 1);
			});
		});
	});
});