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How to use useEffectError method in testing-library-react-hooks
Best JavaScript code snippet using testing-library-react-hooks
errorHook.test.ts
Source:errorHook.test.ts 
...15 return () => clearTimeout(timeout);16 }, [throwError]);17 return useError(value);18 }19 function useEffectError(throwError) {20 useEffect(() => {21 useError(throwError);22 }, []);23 return true;24 }25 describe("synchronous", () => {26 test("should raise error", () => {27 const { result } = renderHook(() => useError(true));28 expect(() => {29 expect(result.current).not.toBe(undefined);30 }).toThrow(Error("expected"));31 });32 test("should capture error", () => {33 const { result } = renderHook(() => useError(true));34 expect(result.error).toEqual(Error("expected"));35 });36 test("should not capture error", () => {37 const { result } = renderHook(() => useError(false));38 expect(result.current).not.toBe(undefined);39 expect(result.error).toBe(undefined);40 });41 test.skip("should reset error", () => {42 const { result, rerender } = renderHook(43 (throwError) => useError(throwError),44 {45 initialProps: true,46 }47 );48 expect(result.error).not.toBe(undefined);49 rerender(false);50 expect(result.current).not.toBe(undefined);51 expect(result.error).toBe(undefined);52 });53 });54 describe("asynchronous", () => {55 test("should raise async error", async () => {56 const { result, waitForNextUpdate } = renderHook(() =>57 useAsyncError(true)58 );59 await waitForNextUpdate();60 expect(() => {61 expect(result.current).not.toBe(undefined);62 }).toThrow(Error("expected"));63 });64 test("should capture async error", async () => {65 const { result, waitForNextUpdate } = renderHook(() =>66 useAsyncError(true)67 );68 await waitForNextUpdate();69 expect(result.error).toEqual(Error("expected"));70 });71 test("should not capture async error", async () => {72 const { result, waitForNextUpdate } = renderHook(() =>73 useAsyncError(false)74 );75 await waitForNextUpdate();76 expect(result.current).not.toBe(undefined);77 expect(result.error).toBe(undefined);78 });79 test.skip("should reset async error", async () => {80 const { result, waitForNextUpdate, rerender } = renderHook(81 (throwError) => useAsyncError(throwError),82 {83 initialProps: true,84 }85 );86 await waitForNextUpdate();87 expect(result.error).not.toBe(undefined);88 rerender(false);89 await waitForNextUpdate();90 expect(result.current).not.toBe(undefined);91 expect(result.error).toBe(undefined);92 });93 });94 /*95 These tests capture error cases that are not currently being caught successfully.96 Refer to https://github.com/testing-library/react-hooks-testing-library/issues/30897 for more details.98 */99 describe.skip("effect", () => {100 test("should raise effect error", () => {101 const { result } = renderHook(() => useEffectError(true));102 expect(() => {103 expect(result.current).not.toBe(undefined);104 }).toThrow(Error("expected"));105 });106 test("should capture effect error", () => {107 const { result } = renderHook(() => useEffectError(true));108 expect(result.error).toEqual(Error("expected"));109 });110 test("should not capture effect error", () => {111 const { result } = renderHook(() => useEffectError(false));112 expect(result.current).not.toBe(undefined);113 expect(result.error).toBe(undefined);114 });115 test("should reset effect error", () => {116 const { result, waitForNextUpdate, rerender } = renderHook(117 (throwError) => useEffectError(throwError),118 {119 initialProps: true,120 }121 );122 expect(result.error).not.toBe(undefined);123 rerender(false);124 expect(result.current).not.toBe(undefined);125 expect(result.error).toBe(undefined);126 });127 });...
Using AI Code Generation
1import React from 'react';2import { renderHook, act } from '@testing-library/react-hooks';3import { useCounter } from './useCounter';4test('should increment counter', () => {5 const { result } = renderHook(() => useCounter());6 act(() => {7 result.current.increment();8 });9 expect(result.current.count).toBe(1);10});11import { useState } from 'react';12export const useCounter = () => {13 const [count, setCount] = useState(0);14 const increment = () => setCount(count + 1);15 return { count, increment };16};17import React from 'react';18import { renderHook, act } from '@testing-library/react-hooks';19import { useCounter } from './useCounter';20test('should increment counter', () => {21 const { result } = renderHook(() => useCounter());22 expect(result.current.count).toBe(0);23 act(() => {24 result.current.increment();25 });26 expect(result.current.count).toBe(1);27});28import { useState, useEffect } from 'react';29export const useCounter = () => {30 const [count, setCount] = useState(0);31 const increment = () => setCount(count + 1);32 useEffect(() => {33 const interval = setInterval(() => {34 increment();35 }, 1000);36 return () => clearInterval(interval);37 }, []);38 return { count, increment };39};
Using AI Code Generation
1import { renderHook } from '@testing-library/react-hooks';2import { useEffectError } from 'use-effect-error';3test('useEffectError', () => {4 const { result } = renderHook(() => useEffectError(() => {5 throw new Error('test error');6 }));7 expect(result.error).toEqual(new Error('test error'));8});9import { renderHook } from '@testing-library/react-hooks';10import { useEffectError } from 'use-effect-error';11test('useEffectError', () => {12 const { result } = renderHook(() => useEffectError(() => {13 throw new Error('test error');14 }));15 expect(result.error).toEqual(new Error('test error'));16});17import { renderHook } from '@testing-library/react-hooks';18import { useEffectError } from 'use-effect-error';19test('useEffectError', () => {20 const { result } = renderHook(() => useEffectError(() => {21 throw new Error('test error');22 }));23 expect(result.error).toEqual(new Error('test error'));24});25import { renderHook } from '@testing-library/react-hooks';26import { useEffectError } from 'use-effect-error';27test('useEffectError', () => {28 const { result } = renderHook(() => useEffectError(() => {29 throw new Error('test error');30 }));31 expect(result.error).toEqual(new Error('test error'));32});33import { renderHook } from '@testing-library/react-hooks';34import { useEffectError } from 'use-effect-error';35test('useEffectError', () => {36 const { result } = renderHook(() => useEffectError(() => {37 throw new Error('test error');38 }));39 expect(result.error).toEqual(new Error('test error'));40});41import { renderHook } from '@testing-library/react-hooks';42import { useEffectError } from 'use-effect-error';43test('useEffectError', () => {44 const { result } = renderHook(() => useEffectError(() => {
Using AI Code Generation
1import { renderHook, act } from '@testing-library/react-hooks';2import useCounter from './useCounter';3describe('useCounter', () => {4 it('should return a counter value', () => {5 const { result } = renderHook(() => useCounter());6 expect(result.current.count).toBe(0);7 });8 it('should increment the counter', () => {9 const { result } = renderHook(() => useCounter());10 act(() => {11 result.current.increment();12 });13 expect(result.current.count).toBe(1);14 });15 it('should decrement the counter', () => {16 const { result } = renderHook(() => useCounter());17 act(() => {18 result.current.decrement();19 });20 expect(result.current.count).toBe(-1);21 });22});23import { useState } from 'react';24const useCounter = () => {25 const [count, setCount] = useState(0);26 const increment = () => setCount((c) => c + 1);27 const decrement = () => setCount((c) => c - 1);28 return { count, increment, decrement };29};30export default useCounter;31module.exports = {32 moduleNameMapper: {33 '^@/(.*)$': '<rootDir>/src/$1',34 },35};36{37 "compilerOptions": {
Using AI Code Generation
1import { useEffectError } from 'testing-library-react-hooks';2import { renderHook } from '@testing-library/react-hooks';3import { useFetch } from './useFetch';4test('useFetch', async () => {5 useEffectError(() => {6 });7});8import { useState, useEffect } from 'react';9import axios from 'axios';10export const useFetch = (url) => {11 const [data, setData] = useState(null);12 const [error, setError] = useState(null);13 const [isLoading, setIsLoading] = useState(false);14 useEffect(() => {15 const fetchData = async () => {16 try {17 setIsLoading(true);18 const response = await axios.get(url);19 setData(response.data);20 } catch (err) {21 setError(err);22 } finally {23 setIsLoading(false);24 }25 };26 fetchData();27 }, [url]);28 return { data, error, isLoading };29};30import { renderHook } from '@testing-library/react-hooks';31import { useFetch } from './useFetch';32test('useFetch', async () => {33 const { result, waitForNextUpdate } = renderHook(() =>34 );35 expect(result.current.isLoading).toBeTruthy();36 await waitForNextUpdate();37 expect(result.current.isLoading).toBeFalsy();38 expect(result.current.data).toHaveLength(10);39});40import { renderHook } from '@testing-library/react-hooks';41import { useFetch } from './useFetch';42test('useFetch', async () => {43 const { result, waitForNextUpdate } = renderHook(() =>44 );45 expect(result.current.isLoading).toBeTruthy();46 await waitForNextUpdate();47 expect(result.current.isLoading).toBeFalsy();48 expect(result.current.data).toHaveLength(10);49});50import { renderHook } from '@testing-library/react-hooks';51import { useFetch } from './useFetch';52test('useFetch', async () => {53 const { result, waitForNextUpdate } = renderHook(() =>54 );55 expect(result.current.isLoading).toBeTruthy();56 await waitForNextUpdate();
Using AI Code Generation
1import { renderHook, act } from '@testing-library/react-hooks';2import {useEffectError} from 'use-effect-error';3const { result } = renderHook(() => useEffectError(() => {4 throw new Error('error');5 }, []));6 act(() => {7 result.current[1]();8 });9 expect(result.current[0]).toBe('error');10import { renderHook, act } from '@testing-library/react-hooks';11import {useEffectError} from 'use-effect-error';12const { result } = renderHook(() => useEffectError(() => {13 throw new Error('error');14 }, []));15 act(() => {16 result.current[1]();17 });18 expect(result.current[0]).toBe('error');19import { renderHook, act } from '@testing-library/react-hooks';20import {useEffectError} from 'use-effect-error';21const { result } = renderHook(() => useEffectError(() => {22 throw new Error('error');23 }, []));24 act(() => {25 result.current[1]();26 });27 expect(result.current[0]).toBe('error');28import { renderHook, act } from '@testing-library/react-hooks';29import {useEffectError} from 'use-effect-error';30const { result } = renderHook(() => useEffectError(() => {31 throw new Error('error');32 }, []));33 act(() => {34 result.current[1]();35 });36 expect(result.current[0]).toBe('error');37import { renderHook, act } from '@testing-library/react-hooks';38import {useEffectError} from 'use-effect-error';39const { result } = renderHook(() => useEffectError(() => {40 throw new Error('error');41 }, []));42 act(() => {43 result.current[1]();44 });45 expect(result.current[0]).toBe('error');46import { renderHook, act } from '@testing-library/react-hooks';47import {useEffectError
Using AI Code Generation
1import React, { useEffect } from 'react';2import { renderHook } from '@testing-library/react-hooks';3import { useFetch } from './useFetch';4const Component = () => {5 const [data, loading, error] = useFetch();6 useEffect(() => {7 if (error) {8 console.log('error', error);9 }10 }, [error]);11 return (12 {loading ? (13 ) : (14 )}15 );16};17describe('useFetch', () => {18 it('should be able to fetch data', async () => {19 const { result, waitForNextUpdate } = renderHook(() => useFetch());20 expect(result.current[0]).toBe(null);21 expect(result.current[1]).toBe(true);22 expect(result.current[2]).toBe(null);23 await waitForNextUpdate();24 expect(result.current[0]).not.toBe(null);25 expect(result.current[1]).toBe(false);26 expect(result.current[2]).toBe(null);27 });28});29import { useState, useEffect } from 'react';30export const useFetch = () => {31 const [data, setData] = useState(null);32 const [loading, setLoading] = useState(true);33 const [error, setError] = useState(null);34 useEffect(() => {35 .then((response) => response.json())36 .then((data) => {37 setData(data);38 setLoading(false);39 setError(null);40 })41 .catch((err) => {42 setData(null);43 setLoading(false);44 setError(err);45 });46 }, []);47 return [data, loading, error];48};49{50 "dependencies": {
Using AI Code Generation
1import { useEffectError } from '@testing-library/react-hooks'2import { renderHook } from '@testing-library/react-hooks'3import { useFetch } from './useFetch'4const mockFetch = jest.fn(() => {5 return Promise.resolve({ json: () => Promise.resolve({ data: 'test data' }) })6})7test('should call fetch with the correct url', async () => {8 await useEffectError(() => {9 })10})11import { useEffect, useState } from 'react'12export const useFetch = (url, fetch) => {13 const [data, setData] = useState(null)14 useEffect(() => {15 fetch(url).then((response) => {16 response.json().then((data) => {17 setData(data)18 })19 })20 }, [url, fetch])21}22import { useEffectError } from '@testing-library/react-hooks'23import { renderHook } from '@testing-library/react-hooks'24import { useFetch } from './useFetch'25const mockFetch = jest.fn(() => {26 return Promise.resolve({ json: () => Promise.resolve({ data: 'test data' }) })27})28test('should call fetch with the correct url', async () => {29 await useEffectError(() => {30 })31})32import { useEffect, useState } from 'react'33export const useFetch = (url, fetch) => {34 const [data, setData] = useState(null)35 useEffect(() => {36 fetch(url).then((response) => {37 response.json().then((data) => {38 setData(data)39 })40 })41 }, [url, fetch])42}43import { useEffectError } from '@testing-library/react-hooks'44import { renderHook } from '@testing-library/react-hooks'45import { useFetch } from './useFetch'46const mockFetch = jest.fn(() => {
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