Tone.js/test/effect/Convolver.js

define(["Tone/effect/Convolver", "helper/Basic", "helper/EffectTests", "Tone/core/Buffer"],
function (Convolver, Basic, EffectTests, Buffer) {

	if (window.__karma__){
		Buffer.baseUrl = "/base/test/";
	}

	describe("Convolver", function(){

		Basic(Convolver);

		var ir = new Buffer();

		var testFile = "./audio/sineStereo.wav";

		before(function(done){
			ir.load(testFile, function(){
				done();
			});
		});

		// the buffers are set to 44.1 Khz, but i always get this error:
		// Error: Failed to set the 'buffer' property on 'ConvolverNode': The buffer sample rate of 48000 does not match the context rate of 44100 Hz.
		// EffectTests(Convolver, ir);

		context("API", function(){

			it ("can pass in options in the constructor", function(){
				var convolver = new Convolver({
					"url" : testFile,
				});
				convolver.dispose();
			});

			it ("invokes the onload function when loaded", function(done){
				var convolver = new Convolver({
					"url" : testFile,
					"onload" : function(){
						convolver.dispose();
						done();
					}
				});
			});

			it ("load returns a Promise", function(done){
				var convolver = new Convolver();
				convolver.load(testFile).then(function(){
					convolver.dispose();
					done();
				});
			});

			it ("load invokes the second callback", function(done){
				var convolver = new Convolver();
				convolver.load(testFile, function(){
					convolver.dispose();
					done();
				});
			});

			it ("can be constructed with loaded buffer", function(done){
				var buffer = new Buffer({
					"url" : testFile,
					"onload" : function(){
						var convolver = new Convolver(buffer);
						expect(convolver.buffer).is.instanceOf(AudioBuffer);
						buffer.dispose();
						convolver.dispose();
						done();
					}
				})
			});

			it ("can be constructed with unloaded buffer", function(done){
				var convolver = new Convolver({
					"url" : new Buffer({
						"url" : testFile,
						"onload" : function(){
							expect(convolver.buffer).is.instanceOf(AudioBuffer);
							convolver.dispose();
							done();
						}
					})
				});
			});
		});
	});
});