mirror of
https://github.com/Tonejs/Tone.js
synced 2024-11-16 16:48:00 +00:00
88 lines
2.2 KiB
JavaScript
88 lines
2.2 KiB
JavaScript
define(["Tone/control/CtrlInterpolate", "helper/Basic", "Tone/core/Transport"], function (CtrlInterpolate, Basic, Transport) {
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describe("CtrlInterpolate", function(){
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Basic(CtrlInterpolate);
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context("API", function(){
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it("can be constructed with an array and index", function(){
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var terp = new CtrlInterpolate([0, 1, 2, 3], 2);
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expect(terp.values).to.deep.equal([0, 1, 2, 3]);
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expect(terp.index).to.equal(2);
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terp.dispose();
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});
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it("can be constructed with an object", function(){
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var terp = new CtrlInterpolate({
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values : [1, 2, 3],
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index : 1,
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});
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expect(terp.values).to.deep.equal([1, 2, 3]);
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expect(terp.index).to.equal(1);
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terp.dispose();
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});
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it("can set the index", function(){
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var terp = new CtrlInterpolate([]);
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terp.index = 4;
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expect(terp.index).to.equal(4);
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terp.index = 0;
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expect(terp.index).to.equal(0);
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terp.dispose();
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});
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});
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context("Interpolation", function(){
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it("can be done over an array of numbers", function(){
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var terp = new CtrlInterpolate([3, 2, 1, 0], 0);
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expect(terp.value).to.equal(3);
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terp.index = 1;
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expect(terp.value).to.equal(2);
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terp.index = 1.5;
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expect(terp.value).to.equal(1.5);
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terp.index = 2.75;
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expect(terp.value).to.equal(0.25);
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terp.dispose();
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});
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it("can be done over an array of arrays", function(){
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var terp = new CtrlInterpolate([[1, 2, 3], [4, 4, 4]], 0.25);
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expect(terp.value).to.deep.equal([1.75, 2.5, 3.25]);
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terp.index = 1.5;
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expect(terp.value).to.deep.equal([4, 4, 4]);
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terp.dispose();
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});
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it("can be done over an array of objects", function(){
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var terp = new CtrlInterpolate([{
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"a" : 4.4,
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"b" : 2.2
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}, {
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"a" : 4.4,
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"b" : 2.2
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}], 0.9);
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expect(terp.value).to.deep.equal({
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a : 4.4,
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b : 2.2
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});
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terp.dispose();
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});
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it("can evaluate time", function(){
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var terp = new CtrlInterpolate(["4n", "8n", "16n"], 0.25);
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expect(terp.value).to.equal(0.4375);
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terp.index = 1.5;
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expect(terp.value).to.equal(0.1875);
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terp.dispose();
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});
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it("mix types", function(){
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var terp = new CtrlInterpolate(["4n", 4], 0.25);
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expect(terp.value).to.equal(1.375);
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terp.dispose();
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});
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});
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});
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});
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