mirror of
https://github.com/Tonejs/Tone.js
synced 2024-12-29 04:53:10 +00:00
400 lines
10 KiB
TypeScript
400 lines
10 KiB
TypeScript
import { expect } from "chai";
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import { ConstantOutput } from "test/helper/ConstantOutput";
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import { Offline } from "test/helper/Offline";
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import { ONLINE_TESTING } from "test/helper/Supports";
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import { Transport } from "../clock/Transport";
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import { getContext } from "../Global";
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import { createAudioContext } from "./AudioContext";
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import { Context } from "./Context";
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import { Destination } from "./Destination";
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import { Draw } from "../util/Draw";
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import { connect } from "./ToneAudioNode";
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describe("Context", () => {
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it("creates and disposes the classes attached to the context", async () => {
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const ac = new AudioContext();
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const context = new Context(ac);
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const ctxDest = context.destination;
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const ctxDraw = context.draw;
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const ctxTransport = context.transport;
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expect(context.destination).is.instanceOf(Destination);
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expect(context.draw).is.instanceOf(Draw);
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expect(context.listener).to.exist;
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await context.close();
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expect(ctxDest.disposed).to.be.true;
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expect(ctxDraw.disposed).to.be.true;
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expect(ctxTransport.disposed).to.be.true;
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context.dispose();
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});
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context("AudioContext", () => {
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it("extends the AudioContext methods", () => {
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const ctx = new Context(createAudioContext());
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expect(ctx).to.have.property("createGain");
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expect(ctx.createGain()).to.have.property("gain");
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expect(ctx).to.have.property("createOscillator");
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expect(ctx.createOscillator()).to.be.have.property("frequency");
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expect(ctx).to.have.property("createDelay");
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expect(ctx.createDelay()).to.be.have.property("delayTime");
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expect(ctx).to.have.property("createConstantSource");
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ctx.dispose();
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});
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if (ONLINE_TESTING) {
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it("clock is running", done => {
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const interval = setInterval(() => {
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if (getContext().currentTime > 0.5) {
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clearInterval(interval);
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done();
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}
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}, 20);
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});
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}
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it("has a rawContext", () => {
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const ctx = new Context(createAudioContext());
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expect(ctx.rawContext).has.property("destination");
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expect(ctx.rawContext).has.property("sampleRate");
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ctx.dispose();
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});
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it("can be constructed with an options object", () => {
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const ctx = new Context({
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clockSource: "timeout",
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latencyHint: "fastest",
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lookAhead: 0.2,
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});
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expect(ctx.lookAhead).to.equal(0.2);
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expect(ctx.latencyHint).to.equal("fastest");
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expect(ctx.clockSource).to.equal("timeout");
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ctx.dispose();
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});
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it("returns 'now' and 'immediate' time", () => {
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const ctx = new Context();
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expect(ctx.now()).to.be.a("number");
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expect(ctx.immediate()).to.be.a("number");
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ctx.dispose();
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});
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});
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context("state", () => {
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it("can suspend and resume the state", async () => {
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const ac = new AudioContext();
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const context = new Context(ac);
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expect(context.rawContext).to.equal(ac);
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await ac.suspend();
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expect(context.state).to.equal("suspended");
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await context.resume();
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expect(context.state).to.equal("running");
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context.dispose();
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return context.close();
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});
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it("invokes the statechange event", async () => {
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const ac = new AudioContext();
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const context = new Context(ac);
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let triggerChange = false;
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context.on("statechange", state => {
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if (!triggerChange) {
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triggerChange = true;
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expect(state).to.equal("running");
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}
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});
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await context.resume();
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await new Promise(done => setTimeout(() => done(), 10));
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expect(triggerChange).to.equal(true);
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context.dispose();
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return ac.close();
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});
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});
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if (ONLINE_TESTING) {
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context("clockSource", () => {
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let ctx;
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beforeEach(() => {
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ctx = new Context();
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return ctx.resume();
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});
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afterEach(() => {
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ctx.dispose();
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return ctx.close();
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});
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it("defaults to 'worker'", () => {
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expect(ctx.clockSource).to.equal("worker");
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});
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it("provides callback", done => {
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expect(ctx.clockSource).to.equal("worker");
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ctx.setTimeout(() => {
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done();
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}, 0.1);
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});
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it("can be set to 'timeout'", done => {
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ctx.clockSource = "timeout";
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expect(ctx.clockSource).to.equal("timeout");
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ctx.setTimeout(() => {
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done();
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}, 0.1);
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});
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it("can be set to 'offline'", done => {
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ctx.clockSource = "offline";
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expect(ctx.clockSource).to.equal("offline");
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// provides no callback
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ctx.setTimeout(() => {
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throw new Error("shouldn't be called");
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}, 0.1);
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setTimeout(() => {
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done();
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}, 200);
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});
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});
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}
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context("setTimeout", () => {
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if (ONLINE_TESTING) {
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let ctx;
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beforeEach(() => {
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ctx = new Context();
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return ctx.resume();
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});
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afterEach(() => {
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ctx.dispose();
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return ctx.close();
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});
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it("can set a timeout", done => {
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ctx.setTimeout(() => {
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done();
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}, 0.1);
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});
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it("returns an id", () => {
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expect(ctx.setTimeout(() => { }, 0.1)).to.be.a("number");
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// try clearing a random ID, shouldn't cause any errors
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ctx.clearTimeout(-2);
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});
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it("timeout is not invoked when cancelled", done => {
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const id = ctx.setTimeout(() => {
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throw new Error("shouldn't be invoked");
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}, 0.01);
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ctx.clearTimeout(id);
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ctx.setTimeout(() => {
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done();
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}, 0.02);
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});
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it("order is maintained", done => {
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let wasInvoked = false;
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ctx.setTimeout(() => {
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expect(wasInvoked).to.equal(true);
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done();
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}, 0.02);
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ctx.setTimeout(() => {
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wasInvoked = true;
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}, 0.01);
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});
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}
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it("is invoked in the offline context", () => {
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return Offline(context => {
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const transport = new Transport({ context });
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transport.context.setTimeout(() => {
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expect(transport.now()).to.be.closeTo(0.01, 0.005);
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}, 0.01);
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}, 0.05);
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});
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});
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context("setInterval", () => {
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if (ONLINE_TESTING) {
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let ctx;
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beforeEach(() => {
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ctx = new Context();
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return ctx.resume();
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});
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afterEach(() => {
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ctx.dispose();
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return ctx.close();
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});
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it("can set an interval", done => {
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ctx.setInterval(() => {
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done();
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}, 0.1);
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});
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it("returns an id", () => {
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expect(ctx.setInterval(() => { }, 0.1)).to.be.a("number");
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// try clearing a random ID, shouldn't cause any errors
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ctx.clearInterval(-2);
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});
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it("timeout is not invoked when cancelled", done => {
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const id = ctx.setInterval(() => {
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throw new Error("shouldn't be invoked");
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}, 0.01);
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ctx.clearInterval(id);
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ctx.setInterval(() => {
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done();
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}, 0.02);
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});
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it("order is maintained", done => {
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let wasInvoked = false;
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ctx.setInterval(() => {
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expect(wasInvoked).to.equal(true);
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done();
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}, 0.02);
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ctx.setInterval(() => {
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wasInvoked = true;
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}, 0.01);
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});
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}
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it("is invoked in the offline context", () => {
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let invocationCount = 0;
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return Offline(context => {
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context.setInterval(() => {
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invocationCount++;
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}, 0.01);
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}, 0.051).then(() => {
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expect(invocationCount).to.equal(4);
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});
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});
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it("is invoked in with the right interval", () => {
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let numberOfInvocations = 0;
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return Offline(context => {
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let intervalTime = context.now();
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context.setInterval(() => {
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expect(context.now() - intervalTime).to.be.closeTo(0.01, 0.005);
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intervalTime = context.now();
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numberOfInvocations++;
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}, 0.01);
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}, 0.051).then(() => {
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expect(numberOfInvocations).to.equal(4);
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});
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});
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});
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// context("Tone", () => {
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// it("has a context", () => {
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// expect(Tone.context).to.exist;
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// expect(Tone.context).to.be.instanceOf(Context);
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// });
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// it("can set a new context", () => {
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// const originalContext = Tone.context;
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// Tone.context = new Context();
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// return Tone.context.dispose().then(() => {
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// Tone.context = originalContext;
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// });
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// });
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// it("has a consistent context after offline rendering", () => {
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// const initialContext = Tone.context;
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// const initialTransport = Tone.Transport;
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// return Offline(() => { }).then(() => {
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// expect(Tone.context).to.equal(initialContext);
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// expect(Tone.Transport).to.equal(initialTransport);
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// });
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// });
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// it("invokes the resume promise", () => {
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// return Tone.context.resume();
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// });
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// it("invokes init when a new context is set", done => {
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// this.timeout(200);
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// const initFn = function(context) {
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// expect(Tone.context).to.equal(context);
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// Context.off("init", initFn);
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// done();
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// };
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// Context.on("init", initFn);
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// Tone.context = new Context();
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// });
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// it("invokes close when a context is disposed", done => {
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// this.timeout(200);
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// const closeFn = function(context) {
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// expect(context).to.be.instanceOf(Context);
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// Context.off("close", closeFn);
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// // set a new context
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// Tone.context = new Context();
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// done();
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// };
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// Context.on("close", closeFn);
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// Tone.context.dispose();
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// });
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// });
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context("get/set", () => {
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let ctx;
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beforeEach(() => {
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ctx = new Context();
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return ctx.resume();
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});
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afterEach(() => {
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ctx.dispose();
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return ctx.close();
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});
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it("can set the lookAhead", () => {
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ctx.lookAhead = 0.05;
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expect(ctx.lookAhead).to.equal(0.05);
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});
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it("can set the updateInterval", () => {
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ctx.updateInterval = 0.05;
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expect(ctx.updateInterval).to.equal(0.05);
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});
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it("can set the latencyHint", () => {
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ctx.latencyHint = "fastest";
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expect(ctx.latencyHint).to.equal("fastest");
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expect(ctx.lookAhead).to.be.closeTo(0.01, 0.05);
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expect(ctx.updateInterval).to.be.closeTo(0.01, 0.05);
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// test all other latency hints
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const latencyHints = ["interactive", "playback", "balanced", 0.2];
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latencyHints.forEach(hint => {
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ctx.latencyHint = hint;
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expect(ctx.latencyHint).to.equal(hint);
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});
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});
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it("gets a constant signal", () => {
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return ConstantOutput(context => {
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const bufferSrc = context.getConstant(1);
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connect(bufferSrc, context.destination);
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}, 1);
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});
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it("multiple calls return the same buffer source", () => {
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const bufferA = ctx.getConstant(2);
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const bufferB = ctx.getConstant(2);
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expect(bufferA).to.equal(bufferB);
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});
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});
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});
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