mirror of
https://github.com/Tonejs/Tone.js
synced 2024-11-16 00:27:58 +00:00
96 lines
3.2 KiB
TypeScript
96 lines
3.2 KiB
TypeScript
import { expect } from "chai";
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import { StateTimeline } from "./StateTimeline";
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describe("StateTimeline", () => {
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it("can be created and disposed", () => {
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const sched = new StateTimeline();
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sched.dispose();
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});
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it("can schedule a state at a given time", () => {
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const sched = new StateTimeline();
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sched.setStateAtTime("started", 0);
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sched.setStateAtTime("stopped", 1);
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sched.setStateAtTime("started", 1);
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sched.dispose();
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});
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it("can get a state at a given time", () => {
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const sched = new StateTimeline();
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sched.setStateAtTime("started", 0);
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sched.setStateAtTime("stopped", 1);
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sched.setStateAtTime("started", 2);
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expect(sched.getValueAtTime(1)).to.equal("stopped");
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expect(sched.getValueAtTime(0.999)).to.equal("started");
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sched.dispose();
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});
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it("returns initial state if it's before any scheduled states", () => {
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const sched = new StateTimeline();
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sched.setStateAtTime("started", 0);
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sched.setStateAtTime("stopped", 1);
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sched.setStateAtTime("started", 2);
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expect(sched.getValueAtTime(-11)).to.equal("stopped");
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sched.dispose();
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});
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it("returns initial state if defined and query time is before any scheduled states", () => {
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const sched = new StateTimeline("started");
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sched.setStateAtTime("started", 20);
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sched.setStateAtTime("stopped", 21);
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sched.setStateAtTime("started", 22);
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expect(sched.getValueAtTime(0)).is.equal("started");
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sched.dispose();
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});
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it("gets the last occurance of the state at or before the given time", () => {
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const sched = new StateTimeline();
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sched.setStateAtTime("started", 0);
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sched.setStateAtTime("stopped", 1);
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sched.setStateAtTime("started", 2);
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sched.setStateAtTime("stopped", 3);
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// @ts-ignore
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expect(sched.getLastState("stopped", 1)).to.exist;
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// @ts-ignore
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expect(sched.getLastState("stopped", 1).state).is.equal("stopped");
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// @ts-ignore
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expect(sched.getLastState("stopped", 2)).to.exist;
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// @ts-ignore
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expect(sched.getLastState("stopped", 2).state).is.equal("stopped");
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// @ts-ignore
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expect(sched.getLastState("stopped", 2).time).is.equal(1);
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// @ts-ignore
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expect(sched.getLastState("stopped", 0.9)).not.to.exist;
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// @ts-ignore
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expect(sched.getLastState("stopped", 4).state).is.equal("stopped");
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// @ts-ignore
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expect(sched.getLastState("stopped", 4).time).is.equal(3);
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sched.dispose();
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});
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it("gets the next occurance of the state at or before the given time", () => {
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const sched = new StateTimeline();
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sched.setStateAtTime("started", 0);
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sched.setStateAtTime("stopped", 1);
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sched.setStateAtTime("started", 2);
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sched.setStateAtTime("stopped", 3);
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// @ts-ignore
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expect(sched.getNextState("stopped", 1)).to.exist;
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// @ts-ignore
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expect(sched.getNextState("stopped", 1).state).is.equal("stopped");
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// @ts-ignore
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expect(sched.getNextState("stopped", 2)).to.exist;
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// @ts-ignore
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expect(sched.getNextState("stopped", 2).state).is.equal("stopped");
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// @ts-ignore
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expect(sched.getNextState("stopped", 2).time).is.equal(3);
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// @ts-ignore
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expect(sched.getNextState("stopped", 0.9)).to.exist;
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// @ts-ignore
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expect(sched.getNextState("stopped", 0.9).state).is.equal("stopped");
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// @ts-ignore
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expect(sched.getNextState("stopped", 0.9).time).is.equal(1);
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sched.dispose();
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});
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});
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