Tone.js/test/signal/Multiply.js

import ConstantOutput from "helper/ConstantOutput";
import Multiply from "Tone/signal/Multiply";
import Basic from "helper/Basic";
import Test from "helper/Test";
import Oscillator from "Tone/source/Oscillator";
import Signal from "Tone/signal/Signal";

describe("Multiply", function(){

	Basic(Multiply);

	describe("Multiplication", function(){

		it("handles input and output connections", function(){
			var mult = new Multiply();
			Test.connect(mult, 0);
			Test.connect(mult, 1);
			mult.connect(Test);
			mult.dispose();
		});

		it("correctly multiplys a signal and a scalar", function(){
			return ConstantOutput(function(){
				var signal = new Signal(2);
				var mult = new Multiply(10);
				signal.connect(mult);
				mult.toMaster();
			}, 20);
		});

		it("can multiply two signals", function(){
			return ConstantOutput(function(){
				var sigA = new Signal(3);
				var sigB = new Signal(5);
				var mult = new Multiply();
				sigA.connect(mult, 0, 0);
				sigB.connect(mult, 0, 1);
				mult.toMaster();
			}, 15); 
		});
	});
});