51 lines
1.1 KiB
React
51 lines
1.1 KiB
React
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import { renderHook, act } from '@testing-library/react-hooks'
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import { vi } from 'vitest'
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import { useScanElapsedTime } from './useScanElapsedTime'
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describe('useScanElapsedTime', () => {
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beforeEach(() => {
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vi.useFakeTimers()
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})
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afterEach(() => {
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vi.useRealTimers()
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})
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it('increments elapsed time while scanning', () => {
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const { result } = renderHook(
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({ scanning, elapsed }) => useScanElapsedTime(scanning, elapsed),
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{
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initialProps: { scanning: true, elapsed: 0 },
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},
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)
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act(() => {
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vi.advanceTimersByTime(3000)
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})
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expect(result.current).toBe(3e9)
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})
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it('stops incrementing when not scanning', () => {
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const { result, rerender } = renderHook(
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({ scanning, elapsed }) => useScanElapsedTime(scanning, elapsed),
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{
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initialProps: { scanning: false, elapsed: 2e9 },
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},
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)
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act(() => {
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vi.advanceTimersByTime(2000)
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})
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expect(result.current).toBe(2e9)
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rerender({ scanning: true, elapsed: 2e9 })
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act(() => {
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vi.advanceTimersByTime(1000)
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})
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expect(result.current).toBe(3e9)
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})
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})
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