text: define(["Tone/control/CtrlInterpolate", "helper/Basic", "Tone/core/Transport"], function (CtrlInterpolate, Basic, Transport) {
  
  	describe("CtrlInterpolate", function(){
  
  		Basic(CtrlInterpolate);
  
  		context("API", function(){
  
  			it("can be constructed with an array and index", function(){
  				var terp = new CtrlInterpolate([0, 1, 2, 3], 2);
  				expect(terp.values).to.deep.equal([0, 1, 2, 3]);
  				expect(terp.index).to.equal(2);
  				terp.dispose();
  			});
  
  			it("can be constructed with an object", function(){
  				var terp = new CtrlInterpolate({
  					values : [1, 2, 3],
  					index : 1,
  				});
  				expect(terp.values).to.deep.equal([1, 2, 3]);
  				expect(terp.index).to.equal(1);
  				terp.dispose();
  			});
  
  			it("can set the index", function(){
  				var terp = new CtrlInterpolate([]);
  				terp.index = 4;
  				expect(terp.index).to.equal(4);
  				terp.index = 0;
  				expect(terp.index).to.equal(0);
  				terp.dispose();
  			});
  		});
  
  		context("Interpolation", function(){
  
  			it("can be done over an array of numbers", function(){
  				var terp = new CtrlInterpolate([3, 2, 1, 0], 0);
  				expect(terp.value).to.equal(3);
  				terp.index = 1;
  				expect(terp.value).to.equal(2);
  				terp.index = 1.5;
  				expect(terp.value).to.equal(1.5);
  				terp.index = 2.75;
  				expect(terp.value).to.equal(0.25);
  				terp.dispose();
  			});
  
  			it("can be done over an array of arrays", function(){
  				var terp = new CtrlInterpolate([[1, 2, 3], [4, 4, 4]], 0.25);
  				expect(terp.value).to.deep.equal([1.75, 2.5, 3.25]);
  				terp.index = 1.5;
  				expect(terp.value).to.deep.equal([4, 4, 4]);
  				terp.dispose();
  			});
  
  			it("can be done over an array of objects", function(){
  				var terp = new CtrlInterpolate([{
  					"a" : 4.4,
  					"b" : 2.2
  				}, {
  					"a" : 4.4,
  					"b" : 2.2
  				}], 0.9);
  				expect(terp.value).to.deep.equal({
  					a : 4.4, 
  					b : 2.2
  				});
  				terp.dispose();
  			});
  
  			it("can evaluate time", function(){
  				var terp = new CtrlInterpolate(["4n", "8n", "16n"], 0.25);
  				expect(terp.value).to.equal(0.4375);
  				terp.index = 1.5;
  				expect(terp.value).to.equal(0.1875);
  				terp.dispose();
  			});
  
  			it("mix types", function(){
  				var terp = new CtrlInterpolate(["4n", 4], 0.25);
  				expect(terp.value).to.equal(1.375);
  				terp.dispose();
  			});
  		});
  	});
  });
  