Tone.js/test/component/Split.js

import Merge from "Tone/component/Merge";
import Basic from "helper/Basic";
import PassAudio from "helper/PassAudio";
import PassAudioStereo from "helper/PassAudioStereo";
import Test from "helper/Test";
import Offline from "helper/Offline";
import Signal from "Tone/signal/Signal";
import Split from "Tone/component/Split";
import Tone from "Tone/core/Tone";
import ConstantOutput from "helper/ConstantOutput";
import StereoSignal from "helper/StereoSignal";
describe("Split", function(){

	Basic(Split);

	context("Splitting", function(){

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

		it("defaults to two channels", function(){
			var split = new Split();
			expect(split.numberOfOutputs).to.equal(2);
			split.dispose();
		});

		it("can pass in more channels", function(){
			var split = new Split(4);
			expect(split.numberOfOutputs).to.equal(4);
			split.connect(Test, 0, 0);
			split.connect(Test, 1, 0);
			split.connect(Test, 2, 0);
			split.connect(Test, 3, 0);
			split.dispose();
		});

		it("passes the incoming signal through on the left side", function(){
			return ConstantOutput(function(){
				var split = new Split();
				var signal = StereoSignal(1, 2).connect(split);
				split.left.toMaster();
			}, 1);
		});

		it("passes the incoming signal through on the right side", function(){
			return ConstantOutput(function(){
				var split = new Split();
				var signal = StereoSignal(1, 2).connect(split);
				split.right.toMaster();
			}, 2);
		});

		it("merges two signal into one stereo signal and then split them back into two signals on left side", function(){
			return ConstantOutput(function(){
				var split = new Split();
				var signal = StereoSignal(1, 2).connect(split);
				split.connect(Tone.Master, 0, 0);
			}, 1);
		});

		it("merges two signal into one stereo signal and then split them back into two signals on right side", function(){
			return ConstantOutput(function(){
				var split = new Split();
				var signal = StereoSignal(1, 2).connect(split);
				split.connect(Tone.Master, 1, 0);
			}, 2);
		});
	});
});