How to use useAsyncError method in testing-library-react-hooks

Best JavaScript code snippet using testing-library-react-hooks

errorHook.test.ts

Source:errorHook.test.ts

...7      throw new Error("expected");8    }9    return true;10  }11  function useAsyncError(throwError) {12    const [value, setValue] = useState();13    useEffect(() => {14      const timeout = setTimeout(() => setValue(throwError), 100);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....

useError.test.js

Source:useError.test.js

...8		}9		return true;10	}11	const somePromise = () => Promise.resolve();12	function useAsyncError(throwError) {13		const [value, setValue] = useState();14		useEffect(() => {15			somePromise().then(() => {16				setValue(throwError);17			});18		}, [throwError]);19		return useError(value);20	}21	describe('synchronous', () => {22		test('should raise error', () => {23			const {result} = renderHook(() => useError(true));24			expect(() => {25				expect(result.current).not.toBe(undefined);26			}).toThrow(Error('expected'));27		});28		test('should capture error', () => {29			const {result} = renderHook(() => useError(true));30			expect(result.error).toEqual(Error('expected'));31		});32		test('should not capture error', () => {33			const {result} = renderHook(() => useError(false));34			expect(result.current).not.toBe(undefined);35			expect(result.error).toBe(undefined);36		});37		test('should reset error', () => {38			const {result, rerender} = renderHook((throwError) => useError(throwError), {39				initialProps: true,40			});41			expect(result.error).not.toBe(undefined);42			rerender(false);43			expect(result.current).not.toBe(undefined);44			expect(result.error).toBe(undefined);45		});46	});47	describe('asynchronous', () => {48		test('should raise async error', async () => {49			const {result, waitForNextUpdate} = renderHook(() => useAsyncError(true));50			await waitForNextUpdate();51			expect(() => {52				expect(result.current).not.toBe(undefined);53			}).toThrow(Error('expected'));54		});55		test('should capture async error', async () => {56			const {result, waitForNextUpdate} = renderHook(() => useAsyncError(true));57			await waitForNextUpdate();58			expect(result.error).toEqual(Error('expected'));59		});60		test('should not capture async error', async () => {61			const {result, waitForNextUpdate} = renderHook(() => useAsyncError(false));62			await waitForNextUpdate();63			expect(result.current).not.toBe(undefined);64			expect(result.error).toBe(undefined);65		});66		test('should reset async error', async () => {67			const {result, waitForNextUpdate, rerender} = renderHook(68					(throwError) => useAsyncError(throwError),69					{70						initialProps: true,71					},72			);73			await waitForNextUpdate();74			expect(result.error).not.toBe(undefined);75			rerender(false);76			await waitForNextUpdate();77			expect(result.current).not.toBe(undefined);78			expect(result.error).toBe(undefined);79		});80	});...

useAsyncError.js

Source:useAsyncError.js

1import { useCallback, useState } from 'react';2const useAsyncError = () => {3  const [, setError] = useState();4  return useCallback(5    (error) => {6      setError(() => {7        throw error;8      });9    },10    [setError]11  );12};...

Using AI Code Generation

1import { renderHook, act } from '@testing-library/react-hooks';2import { useAsyncError } from 'react-hooks-testing-library';3const { result } = renderHook(() => useAsyncError());4act(() => {5  result.current(new Error('error'));6});7import { renderHook, act } from '@testing-library/react-hooks';8import { useAsyncError } from 'react-hooks-testing-library';9const { result } = renderHook(() => useAsyncError());10act(() => {11  result.current(new Error('error'));12});13import { renderHook, act } from '@testing-library/react-hooks';14import { useAsyncError } from 'react-hooks-testing-library';15const { result } = renderHook(() => useAsyncError());16act(() => {17  result.current(new Error('error'));18});19import { renderHook, act } from '@testing-library/react-hooks';20import { useAsyncError } from 'react-hooks-testing-library';21const { result } = renderHook(() => useAsyncError());22act(() => {23  result.current(new Error('error'));24});25import { renderHook, act } from '@testing-library/react-hooks';26import { useAsyncError } from 'react-hooks-testing-library';27const { result } = renderHook(() => useAsyncError());28act(() => {29  result.current(new Error('error'));30});31import { renderHook, act } from '@testing-library/react-hooks';32import { useAsyncError } from 'react-hooks-testing-library';33const { result } = renderHook(() => useAsyncError());34act(() => {35  result.current(new Error('error'));36});

Using AI Code Generation

1import { renderHook, act } from '@testing-library/react-hooks'2import { useAsyncError } from 'react-hooks-testing-library'3test('useAsyncError', async () => {4  const { result } = renderHook(() => useAsyncError())5  act(() => {6    result.current()7  })8  expect(result.error).toEqual(new Error('useAsyncError error'))9})

Using AI Code Generation

1import { renderHook } from '@testing-library/react-hooks';2import { useAsyncError } from 'react-hooks-testing-library';3test('should throw error when async fails', async () => {4  const { result, waitForNextUpdate } = renderHook(() => useAsyncError());5  result.current();6  await waitForNextUpdate();7  expect(result.error).toEqual(Error('Async error'));8});9import { renderHook } from '@testing-library/react-hooks';10import { useAsyncError } from 'react-hooks-testing-library';11test('should throw error when async fails', async () => {12  const { result, waitForNextUpdate } = renderHook(() => useAsyncError());13  result.current();14  await waitForNextUpdate();15  expect(result.error).toEqual(Error('Async error'));16});17import { renderHook } from '@testing-library/react-hooks';18import { useAsyncError } from 'react-hooks-testing-library';19test('should throw error when async fails', async () => {20  const { result, waitForNextUpdate } = renderHook(() => useAsyncError());21  result.current();22  await waitForNextUpdate();23  expect(result.error).toEqual(Error('Async error'));24});25import { renderHook } from '@testing-library/react-hooks';26import { useAsyncError } from 'react-hooks-testing-library';27test('should throw error when async fails', async () => {28  const { result, waitForNextUpdate } = renderHook(() => useAsyncError());29  result.current();30  await waitForNextUpdate();31  expect(result.error).toEqual(Error('Async error'));32});33import { renderHook } from '@testing-library/react-hooks';34import { useAsyncError } from 'react-hooks-testing-library';35test('should throw error when async fails', async () => {36  const { result, waitForNextUpdate } = renderHook(() => useAsyncError());37  result.current();38  await waitForNextUpdate();39  expect(result.error).toEqual(Error('Async error'));40});41import { renderHook

Using AI Code Generation

1import React from 'react';2import { render, waitFor, screen } from '@testing-library/react';3import { useAsyncError } from './useAsyncError';4const TestComponent = () => {5  const { error, setError } = useAsyncError();6  return (7        onClick={() => {8          setError(new Error('Error occurred'));9        }}10      {error && <div data-testid="error">{error.message}</div>}11  );12};13describe('useAsyncError hook', () => {14  it('should display error message', async () => {15    render(<TestComponent />);16    screen.getByText('set error').click();17    await waitFor(() => {18      screen.getByText('Error occurred');19    });20  });21});22import { useState } from 'react';23export const useAsyncError = () => {24  const [error, setError] = useState(null);25  const handleAsyncError = (error) => {26    setError(error);27  };28  return { error, setError: handleAsyncError };29};

Using AI Code Generation

1import { renderHook, act } from '@testing-library/react-hooks'2import { useAsyncError } from 'react-hooks-testing-library'3import useFetch from './useFetch'4test('useFetch hook', async () => {5  expect(result.current.loading).toBe(true)6  expect(result.current.data).toBe(null)7  expect(result.current.error).toBe(null)8  await waitForNextUpdate()9  expect(result.current.loading).toBe(false)10  expect(result.current.data).toEqual({ name: 'Luke Skywalker' })11  expect(result.current.error).toBe(null)12})13test('useFetch hook with error', async () => {14  expect(result.current.loading).toBe(true)15  expect(result.current.data).toBe(null)16  expect(result.current.error).toBe(null)17  await waitForNextUpdate()18  expect(result.current.loading).toBe(false)19  expect(result.current.data).toBe(null)20  expect(result.current.error).toBe('Request failed with status code 404')21})22test('useFetch hook with error', () => {23  expect(result.current.loading).toBe(true)24  expect(result.current.data).toBe(null)25  expect(result.current.error).toBe(null)26  useAsyncError(new Error('Request failed with status code 404'))27  expect(result.current.loading).toBe(false)28  expect(result.current.data).toBe(null)29  expect(result.current.error).toBe('Request failed with status code 404')30})31import { useState, useEffect } from 'react'32import axios from 'axios'33const useFetch = url => {34  const [loading, setLoading] = useState(true)35  const [data, setData] = useState(null)36  const [error, setError] = useState(null)37  useEffect(() => {38    const fetchData = async () => {39      try {

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