Best JavaScript code snippet using testing-library-react-hooks
cleanup.test.ts
Source:cleanup.test.ts
1import { useEffect } from 'react'2describe('cleanup tests', () => {3 runForRenderers(4 ['default/pure', 'dom/pure', 'native/pure', 'server/hydrated/pure'],5 ({ renderHook, cleanup, addCleanup, removeCleanup }) => {6 test('should flush effects on cleanup', async () => {7 let cleanupCalled = false8 const useHookWithCleanup = () => {9 useEffect(() => {10 return () => {11 cleanupCalled = true12 }13 })14 }15 renderHook(() => useHookWithCleanup())16 await cleanup()17 expect(cleanupCalled).toBe(true)18 })19 test('should cleanup all rendered hooks', async () => {20 const cleanupCalled: boolean[] = []21 const useHookWithCleanup = (id: number) => {22 useEffect(() => {23 return () => {24 cleanupCalled[id] = true25 }26 })27 }28 renderHook(() => useHookWithCleanup(1))29 renderHook(() => useHookWithCleanup(2))30 await cleanup()31 expect(cleanupCalled[1]).toBe(true)32 expect(cleanupCalled[2]).toBe(true)33 })34 test('should call cleanups in reverse order', async () => {35 const callSequence: string[] = []36 addCleanup(() => {37 callSequence.push('cleanup')38 })39 addCleanup(() => {40 callSequence.push('another cleanup')41 })42 const useHookWithCleanup = () => {43 useEffect(() => {44 return () => {45 callSequence.push('unmount')46 }47 })48 }49 renderHook(() => useHookWithCleanup())50 await cleanup()51 expect(callSequence).toEqual(['unmount', 'another cleanup', 'cleanup'])52 })53 test('should wait for async cleanup', async () => {54 const callSequence: string[] = []55 addCleanup(() => {56 callSequence.push('cleanup')57 })58 addCleanup(async () => {59 await new Promise((resolve) => setTimeout(resolve, 10))60 callSequence.push('another cleanup')61 })62 const useHookWithCleanup = () => {63 useEffect(() => {64 return () => {65 callSequence.push('unmount')66 }67 })68 }69 renderHook(() => useHookWithCleanup())70 await cleanup()71 expect(callSequence).toEqual(['unmount', 'another cleanup', 'cleanup'])72 })73 test('should remove cleanup using removeCleanup', async () => {74 const callSequence: string[] = []75 addCleanup(() => {76 callSequence.push('cleanup')77 })78 const anotherCleanup = () => {79 callSequence.push('another cleanup')80 }81 addCleanup(anotherCleanup)82 const useHookWithCleanup = () => {83 useEffect(() => {84 return () => {85 callSequence.push('unmount')86 }87 })88 }89 renderHook(() => useHookWithCleanup())90 removeCleanup(anotherCleanup)91 await cleanup()92 expect(callSequence).toEqual(['unmount', 'cleanup'])93 })94 test('should remove cleanup using returned handler', async () => {95 const callSequence: string[] = []96 addCleanup(() => {97 callSequence.push('cleanup')98 })99 const remove = addCleanup(() => {100 callSequence.push('another cleanup')101 })102 const useHookWithCleanup = () => {103 useEffect(() => {104 return () => {105 callSequence.push('unmount')106 }107 })108 }109 renderHook(() => useHookWithCleanup())110 remove()111 await cleanup()112 expect(callSequence).toEqual(['unmount', 'cleanup'])113 })114 }115 )116 runForRenderers(['server/pure'], ({ renderHook, cleanup }) => {117 test('should only cleanup hydrated hooks', async () => {118 const cleanups: Record<string, boolean> = {119 ssr: false,120 hydrated: false121 }122 const useHookWithCleanup = (name: string) => {123 useEffect(() => {124 return () => {125 cleanups[name] = true126 }127 })128 }129 renderHook(() => useHookWithCleanup('ssr'))130 const { hydrate } = renderHook(() => useHookWithCleanup('hydrated'))131 hydrate()132 await cleanup()133 expect(cleanups.ssr).toBe(false)134 expect(cleanups.hydrated).toBe(true)135 })136 })...
Using AI Code Generation
1import {anotherCleanup} from 'testing-library-react-hooks'2afterEach(() => {3 anotherCleanup()4})5import {anotherCleanup} from 'testing-library-react-hooks'6afterEach(() => {7 anotherCleanup()8})9import React from 'react'10import {render, fireEvent, cleanup} from 'react-testing-library'11import {act} from 'react-dom/test-utils'12import {useCounter} from './useCounter
Using AI Code Generation
1import { cleanup } from '@testing-library/react-hooks';2import { cleanup } from '@testing-library/react-hooks';3import { cleanup } from '@testing-library/react-hooks';4import { cleanup } from '@testing-library/react-hooks';5import { cleanup } from '@testing-library/react-hooks';6import { cleanup } from '@testing-library/react-hooks';7import { cleanup } from '@testing-library/react-hooks';8import { cleanup } from '@testing-library/react-hooks';9import { cleanup } from '@testing-library/react-hooks';10import { cleanup } from '@testing-library/react-hooks';11import { cleanup } from '@testing-library/react-hooks';
Using AI Code Generation
1import { anotherCleanup } from "react-testing-library-hooks";2import { cleanup } from "react-testing-library-hooks";3import { renderHook } from "react-testing-library-hooks";4import { act } from "react-testing-library-hooks";5import { renderHook } from "react-testing-library-hooks";6import { act } from "react-testing-library-hooks";7import { useCounter } from "./useCounter";8afterEach(() => {9 anotherCleanup();10 cleanup();11});12const { result } = renderHook(() => useCounter());13act(() => {14 result.current.increment();15});16act(() => {17 result.current.decrement();18});19act(() => {20 result.current.incrementBy(2);21});22act(() => {23 result.current.decrementBy(2);24});25act(() => {26 result.current.reset();27});28act(() => {29 result.current.setCount(100);30});31act(() => {32 result.current.increment();33});34act(() => {35 result.current.decrement();36});37act(()
Using AI Code Generation
1import { cleanup as anotherCleanup } from 'testing-library-react-hooks';2import { cleanup } from 'react-testing-library';3import { cleanup } from 'react-testing-library';4import { cleanup as anotherCleanup } from 'testing-library-react-hooks';5import { cleanup } from 'react-testing-library';6import { cleanup as anotherCleanup } from 'testing-library-react-hooks';7import { cleanup } from 'react-testing-library';8import { cleanup as anotherCleanup } from 'testing-library-react-hooks';9import { cleanup as anotherCleanup } from 'testing-library-react-hooks';10import { cleanup } from 'react-testing-library';11import { cleanup as anotherCleanup } from 'testing-library-react-hooks';12import { cleanup as anotherCleanup } from 'testing-library-react-hooks';13import { cleanup as anotherCleanup } from 'testing-library-react-hooks';14import { cleanup as anotherCleanup } from 'testing-library-react-hooks';15import { cleanup } from 'react-testing-library';16import { cleanup as anotherCleanup } from 'testing-library-react-hooks';17import { cleanup as anotherCleanup } from 'testing-library-react-hooks';18import { cleanup } from 'react-testing-library';19import { cleanup as anotherCleanup } from 'testing-library-react-hooks';20import { cleanup as anotherCleanup } from 'testing-library-react-hooks';21import { cleanup as anotherCleanup } from 'testing-library-react-hooks';22import { cleanup } from 'react-testing-library';23import { cleanup as anotherCleanup } from 'testing-library-react-hooks';24import { cleanup as anotherCleanup } from 'testing-library-react-hooks';
Using AI Code Generation
1import {anotherCleanup} from 'testing-library-react-hooks'2import {cleanup} from 'testing-library-react-hooks'3afterEach(() => {4 anotherCleanup()5 cleanup()6})7import {anotherCleanup} from 'testing-library-react-hooks'8import {cleanup} from 'testing-library-react-hooks'9afterEach(() => {10 anotherCleanup()11 cleanup()12})13import {anotherCleanup} from 'testing-library-react-hooks'14import {cleanup} from 'testing-library-react-hooks'15afterEach(() => {16 anotherCleanup()17 cleanup()18})19import {anotherCleanup} from 'testing-library-react-hooks'20import {cleanup} from 'testing-library-react-hooks'21afterEach(() => {22 anotherCleanup()23 cleanup()24})25import {anotherCleanup} from 'testing-library-react-hooks'26import {cleanup} from 'testing-library-react-hooks'27afterEach(() => {28 anotherCleanup()29 cleanup()30})31import {anotherCleanup} from 'testing-library-react-hooks'
Using AI Code Generation
1import {anotherCleanup} from "testing-library-react-hooks";2anotherCleanup();3import {cleanup} from "testing-library-react-hooks";4cleanup();5Why do we need to import cleanup from testing-library-react-hooks ?6Why do we need to import anotherCleanup from testing-library-react-hooks ?
Using AI Code Generation
1import { renderHook, act } from '@testing-library/react-hooks';2import { useCounter } from './useCounter';3afterEach(() => {4 testingLibraryReactHooks.cleanup();5});6test('should increment counter', () => {7 const { result } = renderHook(() => useCounter());8 act(() => {9 result.current.increment();10 });11 expect(result.current.count).toBe(1);12});13test('should decrement counter', () => {14 const { result } = renderHook(() => useCounter());15 act(() => {16 result.current.decrement();17 });18 expect(result.current.count).toBe(-1);19});20test('should reset counter', () => {21 const { result } = renderHook(() => useCounter());22 act(() => {23 result.current.increment();24 result.current.increment();25 result.current.reset();26 });27 expect(result.current.count).toBe(0);28});29test('should increment counter by 2', () => {30 const { result } = renderHook(() => useCounter());31 act(() => {32 result.current.incrementBy(2);33 });34 expect(result.current.count).toBe(2);35});36test('should decrement counter by 2', () => {37 const { result } = renderHook(() => useCounter());38 act(() => {39 result.current.decrementBy(2);40 });41 expect(result.current.count).toBe(-2);42});43test('should increment counter by 2 and then decrement by 1', () => {44 const { result } = renderHook(() => useCounter());45 act(() => {46 result.current.incrementBy(2);47 result.current.decrementBy(1);48 });49 expect(result.current.count).toBe(1);50});51test('should increment counter by 2 and then reset', () => {52 const { result } = renderHook(() => useCounter());53 act(() => {54 result.current.incrementBy(2);55 result.current.reset();56 });57 expect(result.current.count).toBe(0);58});59test('should increment counter by 2 and then decrement by 1 and then reset', () => {60 const { result } = renderHook(() => useCounter());61 act(() => {62 result.current.incrementBy(2);63 result.current.decrementBy(1);64 result.current.reset();65 });66 expect(result.current.count).toBe(0);67});68test('should increment
Using AI Code Generation
1import {anotherCleanup} from 'testing-library-react-hooks'2afterEach(() => {3 anotherCleanup()4})5import {anotherCleanup} from 'testing-library-react-hooks'6afterEach(() => {7 anotherCleanup()8})9The above code will not work as the afterEach function will only work for the test2.js file. You will need to have the afterEach function defined in each test file. To avoid this, you can create a custom afterEach function in a common file and import it in all the test files. Here is an example:10import {anotherCleanup} from 'testing-library-react-hooks'11export const customAfterEach = () => {12 anotherCleanup()13}14import {customAfterEach} from './common'15afterEach(() => {16 customAfterEach()17})18import {customAfterEach} from './common'19afterEach(() => {20 customAfterEach()21})
Using AI Code Generation
1import { renderHook } from '@testing-library/react-hooks';2import { useCounter } from './customHook';3afterEach(() => {4 anotherCleanup();5});6test('should increment counter', () => {7 const { result } = renderHook(useCounter);8 expect(result.current.count).toBe(0);9 act(() => {10 result.current.increment();11 });12 expect(result.current.count).toBe(1);13});14test('should decrement counter', () => {15 const { result } = renderHook(useCounter);16 expect(result.current.count).toBe(0);17 act(() => {18 result.current.decrement();19 });20 expect(result.current.count).toBe(-1);21});22test('should reset counter', () => {23 const { result } = renderHook(useCounter);24 expect(result.current.count).toBe(0);25 act(() => {26 result.current.decrement();27 });28 expect(result.current.count).toBe(-1);29 act(() => {30 result.current.reset();31 });32 expect(result.current.count).toBe(0);33});34import { useState, useCallback } from 'react';35export const useCounter = () => {36 const [count, setCount] = useState(0);37 const increment = useCallback(() => {38 setCount((prevCount) => prevCount + 1);39 }, []);40 const decrement = useCallback(() => {41 setCount((prevCount) => prevCount - 1);42 }, []);43 const reset = useCallback(() => {44 setCount(0);45 }, []);46 return {47 };48};49import { cleanup } from '@testing-library/react-hooks';50export const anotherCleanup = () => {51 cleanup();52};53import { render, fireEvent } from '@testing-library/react-native';54import { Button } from 'react-native';55test('should render the Button component', () => {56 const { getByTestId } = render(<Button testID="button" title="Button" />);57 const button = getByTestId('button');58 fireEvent.press(button);
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