Rune Harlyk
47 lines
1.5 KiB
TypeScript
47 lines
1.5 KiB
TypeScript
import { describe, it, expect, beforeEach, afterEach, vitest } from 'vitest'
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import { Throttler } from '../../src/lib/utilities/buffer-utilities'
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describe('throttler', () => {
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let throttleInstance: Throttler
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let callback: () => void
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beforeEach(() => {
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vitest.useFakeTimers()
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throttleInstance = new Throttler()
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callback = vitest.fn()
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})
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afterEach(() => {
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vitest.useRealTimers()
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})
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it('should call the callback function after the specified time', () => {
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throttleInstance.throttle(callback, 1000)
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expect(callback).not.toHaveBeenCalled()
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vitest.advanceTimersByTime(1000)
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expect(callback).toHaveBeenCalledTimes(1)
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})
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it('should not call the callback function if throttle is called again within the timeout period', () => {
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throttleInstance.throttle(callback, 1000)
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throttleInstance.throttle(callback, 1000)
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vitest.advanceTimersByTime(500)
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expect(callback).not.toHaveBeenCalled()
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vitest.advanceTimersByTime(500)
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expect(callback).toHaveBeenCalledTimes(1)
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})
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it('should allow the callback to be called again after the timeout period', () => {
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throttleInstance.throttle(callback, 1000)
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vitest.advanceTimersByTime(1000)
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expect(callback).toHaveBeenCalledTimes(1)
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throttleInstance.throttle(callback, 1000)
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vitest.advanceTimersByTime(1000)
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expect(callback).toHaveBeenCalledTimes(2)
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})
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})
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