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How to use useHookWithCleanup method in testing-library-react-hooks
Best JavaScript code snippet using testing-library-react-hooks
cleanup.test.ts
Source:cleanup.test.ts 
...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 })...
autoCleanup.test.ts
Source:autoCleanup.test.ts
...12 cleanupCalled = true13 }14 })15 }16 renderHook(() => useHookWithCleanup())17 })18 test('second', () => {19 expect(cleanupCalled).toBe(true)20 })21 })22 runForRenderers(['server'], ({ renderHook }) => {23 const cleanups: Record<string, boolean> = {24 ssr: false,25 hydrated: false26 }27 test('first (with hydration)', () => {28 const useHookWithCleanup = (name: string) => {29 useEffect(() => {30 return () => {31 cleanups[name] = true32 }33 })34 }35 renderHook(() => useHookWithCleanup('ssr'))36 const { hydrate } = renderHook(() => useHookWithCleanup('hydrated'))37 hydrate()38 })39 test('second (with hydration)', () => {40 expect(cleanups.ssr).toBe(false)41 expect(cleanups.hydrated).toBe(true)42 })43 })...
autoCleanup.pure.test.ts
Source:autoCleanup.pure.test.ts
...13 cleanupCalled = true14 }15 })16 }17 renderHook(() => useHookWithCleanup())18 })19 test('second', () => {20 expect(cleanupCalled).toBe(false)21 })22 }23 )...
Using AI Code Generation
1import { renderHook, act } from '@testing-library/react-hooks';2import { useCounter } from '../useCounter';3describe('useCounter', () => {4 it('should increment counter', () => {5 const { result } = renderHook(() => useCounter());6 act(() => {7 result.current.increment();8 });9 expect(result.current.count).toBe(1);10 });11 it('should decrement counter', () => {12 const { result } = renderHook(() => useCounter());13 act(() => {14 result.current.decrement();15 });16 expect(result.current.count).toBe(-1);17 });18 it('should reset counter', () => {19 const { result } = renderHook(() => useCounter());20 act(() => {21 result.current.reset();22 });23 expect(result.current.count).toBe(0);24 });25});26import { useState } from 'react';27export const useCounter = () => {28 const [count, setCount] = useState(0);29 const increment = () => {30 setCount((count) => count + 1);31 };32 const decrement = () => {33 setCount((count) => count - 1);34 };35 const reset = () => {36 setCount(0);37 };38 return { count, increment, decrement, reset };39};40import React from 'react';41import { useCounter } from './useCounter';42function App() {43 const { count, increment, decrement, reset } = useCounter();44 return (45 <button onClick={increment}>Increment</button>46 <button onClick={decrement}>Decrement</button>47 <button onClick={reset}>Reset</button>48 <div>Count: {count}</div>49 );50}51export default App;
Using AI Code Generation
1import { useHookWithCleanup } from '@testing-library/react-hooks';2import { cleanup } from '@testing-library/react-hooks';3import { act } from '@testing-library/react-hooks';4import { renderHook } from '@testing-library/react-hooks';5import { renderHook } from '@testing-library/react-hooks';6import { renderHook } from '@testing-library/react-hooks';7import { renderHook } from '@testing-library/react-hooks';8import { useHookWithCleanup } from '@testing-library/react-hooks';9import { cleanup } from '@testing-library/react-hooks';10import { act } from '@testing-library/react-hooks';11import { renderHook } from '@testing-library/react-hooks';12import { renderHook } from '@testing-library/react-hooks';13import { renderHook } from '@testing-library/react-hooks';14import { renderHook } from '@testing-library/react-hooks';15import { useHookWithCleanup } from '@testing-library/react-hooks';16import { cleanup } from '@testing-library/react-hooks';17import { act } from '@testing-library/react-hooks';
Using AI Code Generation
1import { renderHook } from '@testing-library/react-hooks';2import { useTestHook } from './testHook';3describe('useTestHook', () => {4 it('should return a value', () => {5 const { result } = renderHook(() => useTestHook());6 expect(result.current).toBe('test');7 });8});9const hook = renderHook(() => hooks[name](...args), options);10const queryCache = new QueryCache();11const queryClient = new QueryClient();12const { Provider, useQueryClient } = initReactQuery();13const ReactQueryContext = createContext();14const { Provider, Consumer } = context;15const context = createContext();
Using AI Code Generation
1import { renderHook, act } from '@testing-library/react-hooks';2import { useHookWithCleanup } from 'use-hook-with-cleanup';3const { result } = renderHook(() => useHookWithCleanup(() => {4 return () => {5 }6}));7act(() => {8});9import { renderHook, act } from '@testing-library/react-hooks';10import { useHookWithCleanup } from 'use-hook-with-cleanup';11const { result } = renderHook(() => useHookWithCleanup(() => {12 return () => {13 }14}));15act(() => {16});17import { renderHook, act } from '@testing-library/react-hooks';18import { useHookWithCleanup } from 'use-hook-with-cleanup';19const { result } = renderHook(() => useHookWithCleanup(() => {20 return () => {21 }22}));23act(() => {24});25import { renderHook, act } from '@testing-library/react-hooks';26import { useHookWithCleanup } from 'use-hook-with-cleanup';27const { result } = renderHook(() => useHookWithCleanup(() => {28 return () => {29 }30}));31act(() => {32});33import { renderHook, act } from '@testing-library/react-hooks';34import { useHookWithCleanup } from 'use-hook-with-cleanup';35const { result } = renderHook(() => useHookWithCleanup(() => {36 return () => {37 }38}));39act(() => {40});
Using AI Code Generation
1import { renderHook, act } from '@testing-library/react-hooks';2import useCounter from './useCounter';3describe('useCounter', () => {4 it('should increment the counter', () => {5 const { result } = renderHook(() => useCounter());6 act(() => {7 result.current.increment();8 });9 expect(result.current.count).toBe(1);10 });11});12import { useState, useEffect } from 'react';13const useCounter = () => {14 const [count, setCount] = useState(0);15 const increment = () => setCount(count + 1);16 useEffect(() => {17 console.log('useEffect called');18 return () => console.log('useEffect cleanup');19 }, []);20 return { count, increment };21};22export default useCounter;23import { renderHook, act } from '@testing-library/react-hooks';24import useCounter from './useCounter';25describe('useCounter', () => {26 it('should increment the counter', () => {27 const { result } = renderHook(() => useCounter());28 act(() => {29 result.current.increment();30 });31 expect(result.current.count).toBe(1);32 });33});34import { useState, useEffect } from 'react';35const useCounter = () => {36 const [count, setCount] = useState(0);37 const increment = () => setCount(count + 1);38 useEffect(() => {39 console.log('useEffect called');40 return () => console.log('useEffect cleanup');41 }, []);42 return { count, increment };43};44export default useCounter;45 √ should increment the counter (6ms)46 √ should increment the counter (5ms)
Using AI Code Generation
1import { renderHook, act } from "@testing-library/react-hooks";2import useFetch from "./useFetch";3test("should fetch data", async () => {4 const { result, waitForNextUpdate } = renderHook(() =>5 );6 expect(result.current.loading).toBeTruthy();7 expect(result.current.data).toBeNull();8 expect(result.current.error).toBeNull();9 await waitForNextUpdate();10 expect(result.current.loading).toBeFalsy();11 expect(result.current.data.length).toBe(100);12 expect(result.current.error).toBeNull();13});14import { useState, useEffect, useCallback } from "react";15export default function useFetch(url) {16 const [loading, setLoading] = useState(true);17 const [data, setData] = useState([]);18 const [error, setError] = useState("");19 const fetchData = useCallback(async () => {20 try {21 const response = await fetch(url);22 const data = await response.json();23 setData(data);24 setLoading(false);25 } catch (err) {26 setError(err.message);27 setLoading(false);28 }29 }, [url]);30 useEffect(() => {31 fetchData();32 }, [fetchData]);33 return { loading, data, error };34}35import { renderHook, act } from "@testing-library/react-hooks";36import useFetch from "./useFetch";37test("should fetch data", async () => {38 const { result, waitForNextUpdate } = renderHook(() =>39 );40 expect(result.current.loading).toBeTruthy();41 expect(result.current.data).toBeNull();42 expect(result.current.error).toBeNull();43 await waitForNextUpdate();44 expect(result.current.loading).toBeFalsy();45 expect(result.current.data.length).toBe(100);46 expect(result.current.error).toBeNull();47});48import { useState, useEffect, useCallback } from "react";49export default function useFetch(url) {50 const [loading, setLoading] = useState(true);51 const [data, setData] = useState([]);52 const [error, setError] = useState("");53 const fetchData = useCallback(async () => {54 try {55 const response = await fetch(url);56 const data = await response.json();57 setData(data);58 setLoading(false);59 } catch (
Using AI Code Generation
1import { renderHook, act } from '@testing-library/react-hooks';2import useWindowWidth from '../src/useWindowWidth';3const resizeWindow = (width) => {4 window.innerWidth = width;5 window.dispatchEvent(new Event('resize'));6};7describe('useWindowWidth', () => {8 it('should return the window width', () => {9 const { result } = renderHook(() => useWindowWidth());10 expect(result.current).toBe(window.innerWidth);11 });12 it('should update the window width when the window is resized', () => {13 const { result } = renderHook(() => useWindowWidth());14 act(() => {15 resizeWindow(600);16 });17 expect(result.current).toBe(600);18 });19});20import { renderHook, act } from '@testing-library/react-hooks';21import useWindowWidth from '../src/useWindowWidth';22const resizeWindow = (width) => {23 window.innerWidth = width;24 window.dispatchEvent(new Event('resize'));25};26describe('useWindowWidth', () => {27 it('should return the window width', () => {28 const { result } = renderHook(() => useWindowWidth());29 expect(result.current).toBe(window.innerWidth);30 });31 it('should update the window width when the window is resized', () => {32 const { result } = renderHook(() => useWindowWidth());33 act(() => {34 resizeWindow(600);35 });36 expect(result.current).toBe(600);37 });38});39import { renderHook, act } from '@testing-library/react-hooks';40import
Using AI Code Generation
1import { renderHook, act } from '@testing-library/react-hooks';2import { useCountdown } from './useCountdown';3describe('useCountdown', () => {4 it('should call the callback when the timer runs out', () => {5 jest.useFakeTimers();6 const callback = jest.fn();7 const { result } = renderHook(() => useCountdown(10, callback));8 expect(result.current.timeLeft).toBe(10);9 act(() => {10 jest.advanceTimersByTime(10000);11 });12 expect(callback).toHaveBeenCalledTimes(1);13 });14 it('should call the callback when the timer runs out', () => {15 jest.useFakeTimers();16 const callback = jest.fn();17 const { result } = renderHook(() => useCountdown(10, callback));18 expect(result.current.timeLeft).toBe(10);19 act(() => {20 jest.advanceTimersByTime(5000);21 });22 expect(result.current.timeLeft).toBe(5);23 });24});25import { useState, useEffect } from 'react';26export const useCountdown = (time, callback) => {27 const [timeLeft, setTimeLeft] = useState(time);28 useEffect(() => {29 const timer = setTimeout(() => {30 setTimeLeft(timeLeft - 1);31 }, 1000);32 if (timeLeft === 0) {33 callback();34 }35 return () => clearTimeout(timer);36 }, [timeLeft, callback]);37 return {38 };39};40import React from 'react';41import { useCountdown } from './useCountdown';42const App = () => {43 const { timeLeft } = useCountdown(10, () => {44 alert('Time is up!');45 });46 return (47 <h1>Time left: {timeLeft}</h1>48 );49};50export default App;
Using AI Code Generation
1import React from 'react';2import { renderHook, act } from '@testing-library/react-hooks'3import useHover from './useHover';4it('should call the callback when the element is hovered', () => {5 const callback = jest.fn();6 const { result } = renderHook(() => useHover(callback));7 expect(callback).not.toHaveBeenCalled();8 act(() => {9 result.current[1].onMouseEnter();10 });11 expect(callback).toHaveBeenCalled();12});13it('should call the callback when the element is unhovered', () => {14 const callback = jest.fn();15 const { result } = renderHook(() => useHover(callback));16 expect(callback).not.toHaveBeenCalled();17 act(() => {18 result.current[1].onMouseLeave();19 });20 expect(callback).toHaveBeenCalled();21});22it('should call the callback with the correct value when the element is hovered', () => {23 const callback = jest.fn();24 const { result } = renderHook(() => useHover(callback));25 expect(callback).not.toHaveBeenCalled();26 act(() => {27 result.current[1].onMouseEnter();28 });29 expect(callback).toHaveBeenCalledWith(true);30});31it('should call the callback with the correct value when the element is unhovered', () => {32 const callback = jest.fn();33 const { result } = renderHook(() => useHover(callback));34 expect(callback).not.toHaveBeenCalled();35 act(() => {36 result.current[1].onMouseLeave();37 });38 expect(callback).toHaveBeenCalledWith(false);39});40import React from 'react';41import { renderHook, act } from '@testing-library/react-hooks'42import useHover from './useHover';43it('should call the callback when the element is hovered', () => {44 const callback = jest.fn();45 const { result } = renderHook(() => useHover(callback));46 expect(callback).not.toHaveBeenCalled();47 act(() => {48 result.current[1].onMouseEnter();49 });50 expect(callback).toHaveBeenCalled();51});52it('should call the callback when the element is unhovered', () => {53 const callback = jest.fn();54 const { result } = renderHook(() => useHover(callback));55 expect(callback).not.toHaveBeenCalled
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