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1import { AutoPanner } from "./AutoPanner.js";
2import { BasicTests } from "../../test/helper/Basic.js";
3import { EffectTests } from "../../test/helper/EffectTests.js";
4import { Offline } from "../../test/helper/Offline.js";
5import { expect } from "chai";
6import { CompareToFile } from "../../test/helper/CompareToFile.js";
7import { Oscillator } from "../source/oscillator/Oscillator.js";
8
9describe("AutoPanner", () => {
10 BasicTests(AutoPanner);
11 EffectTests(AutoPanner);
12
13 it("matches a file", () => {
14 return CompareToFile(
15 () => {
16 const autoFilter = new AutoPanner({
17 type: "sine",
18 frequency: 3,
19 }).toDestination();
20 new Oscillator().connect(autoFilter).start();
21 autoFilter.start(0.2);
22 },
23 "autoPanner.wav",
24 0.01
25 );
26 });
27
28 context("API", () => {
29 it("can pass in options in the constructor", () => {
30 const autoPanner = new AutoPanner({
31 type: "sawtooth",
32 depth: 0.2,
33 });
34 expect(autoPanner.depth.value).to.be.closeTo(0.2, 0.01);
35 expect(autoPanner.type).to.equal("sawtooth");
36 autoPanner.dispose();
37 });
38
39 it("can be started and stopped", () => {
40 const autoPanner = new AutoPanner();
41 autoPanner.start().stop("+0.2");
42 autoPanner.dispose();
43 });
44
45 it("can get/set the options", () => {
46 const autoPanner = new AutoPanner();
47 autoPanner.set({
48 frequency: 2.4,
49 type: "triangle",
50 });
51 expect(autoPanner.get().frequency).to.be.closeTo(2.4, 0.01);
52 expect(autoPanner.get().type).to.equal("triangle");
53 autoPanner.dispose();
54 });
55
56 it("can set the frequency and depth", () => {
57 const autoPanner = new AutoPanner();
58 autoPanner.depth.value = 0.4;
59 autoPanner.frequency.value = 0.4;
60 expect(autoPanner.depth.value).to.be.closeTo(0.4, 0.01);
61 expect(autoPanner.frequency.value).to.be.closeTo(0.4, 0.01);
62 autoPanner.dispose();
63 });
64
65 it("can sync the frequency to the transport", () => {
66 return Offline(({ transport }) => {
67 const panner = new AutoPanner(2);
68 panner.sync();
69 panner.frequency.toDestination();
70 transport.bpm.setValueAtTime(transport.bpm.value * 2, 0.05);
71 // transport.start(0)
72 }, 0.1).then((buffer) => {
73 expect(buffer.getValueAtTime(0)).to.be.closeTo(2, 0.1);
74 expect(buffer.getValueAtTime(0.05)).to.be.closeTo(4, 0.1);
75 });
76 });
77
78 it("can unsync the frequency to the transport", () => {
79 return Offline(({ transport }) => {
80 const panner = new AutoPanner(2);
81 panner.sync();
82 panner.frequency.toDestination();
83 transport.bpm.setValueAtTime(transport.bpm.value * 2, 0.05);
84 panner.unsync();
85 // transport.start(0)
86 }, 0.1).then((buffer) => {
87 expect(buffer.getValueAtTime(0)).to.be.closeTo(2, 0.1);
88 expect(buffer.getValueAtTime(0.05)).to.be.closeTo(2, 0.1);
89 });
90 });
91 });
92});