85 lines
2.0 KiB
TypeScript
85 lines
2.0 KiB
TypeScript
import { afterAll, beforeAll, describe, expect, it, vi } from 'vitest';
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import { Timer } from '../../src/utils/timer';
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// @vitest-environment jsdom
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describe('Timer', () => {
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beforeAll(() => {
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vi.useFakeTimers();
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});
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afterAll(() => {
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vi.useRealTimers();
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});
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it('should not be running on construct', () => {
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const timer = new Timer();
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expect(timer.isRunning()).toBeFalsy();
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});
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it('should fire when started', () => {
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const timer = new Timer();
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const handler = vi.fn();
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timer.start(10, handler);
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expect(timer.isRunning()).toBeTruthy();
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expect(handler).not.toHaveBeenCalled();
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vi.runOnlyPendingTimers();
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expect(timer.isRunning()).toBeFalsy();
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expect(handler).toHaveBeenCalled();
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});
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it('should not fire when stopped', () => {
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const timer = new Timer();
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const handler = vi.fn();
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timer.start(10, handler);
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expect(timer.isRunning()).toBeTruthy();
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expect(handler).not.toHaveBeenCalled();
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timer.stop();
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vi.runOnlyPendingTimers();
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expect(timer.isRunning()).toBeFalsy();
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expect(handler).not.toHaveBeenCalled();
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});
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it('should fire repeatedly when started', () => {
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const timer = new Timer();
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const handler = vi.fn();
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timer.startRepeated(10, handler);
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expect(timer.isRunning()).toBeTruthy();
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expect(handler).not.toHaveBeenCalled();
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vi.runOnlyPendingTimers();
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expect(timer.isRunning()).toBeTruthy();
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expect(handler).toHaveBeenCalledTimes(1);
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vi.runOnlyPendingTimers();
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expect(timer.isRunning()).toBeTruthy();
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expect(handler).toHaveBeenCalledTimes(2);
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});
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it('should not fire repeatedly when stopped', () => {
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const timer = new Timer();
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const handler = vi.fn();
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timer.startRepeated(10, handler);
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expect(timer.isRunning()).toBeTruthy();
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expect(handler).not.toHaveBeenCalled();
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timer.stop();
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vi.runOnlyPendingTimers();
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expect(timer.isRunning()).toBeFalsy();
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expect(handler).not.toHaveBeenCalled();
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});
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});
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