define(["helper/Basic", "Tone/source/PWMOscillator", "helper/Offline",
	"helper/SourceTests", "helper/OscillatorTests", "helper/Test", "helper/CompareToFile"],
function(BasicTests, PWMOscillator, Offline, SourceTests, OscillatorTests, Test, CompareToFile){

	describe("PWMOscillator", function(){

		//run the common tests
		BasicTests(PWMOscillator);
		SourceTests(PWMOscillator);
		OscillatorTests(PWMOscillator);

		it("matches a file", function(){
			return CompareToFile(function(){
				var osc = new PWMOscillator().toMaster();
				osc.start(0.1);
			}, "pwmOscillator.wav");
		});

		context("Modulation Frequency", function(){

			it("can set the modulation frequency", function(){
				var pwm = new PWMOscillator();
				pwm.modulationFrequency.value = 0.2;
				expect(pwm.modulationFrequency.value).to.be.closeTo(0.2, 0.001);
				pwm.dispose();
			});

			it("can connect a signal to the modulationFrequency", function(){
				var pwm = new PWMOscillator();
				Test.connect(pwm.modulationFrequency);
				pwm.dispose();
			});

		});

		context("Types", function(){
			it("reports it's type", function(){
				var osc = new PWMOscillator();
				expect(osc.type).to.equal("pwm");
				expect(osc.baseType).to.equal("pwm");
				osc.dispose();
			});
		});
	});

});