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

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

asyncUtils.ts

1import {2  Act,3  WaitOptions,4  WaitForOptions,5  WaitForValueToChangeOptions,6  WaitForNextUpdateOptions,7  AsyncUtils8} from '../types'9import { createTimeoutController } from '../helpers/createTimeoutController'10import { TimeoutError } from '../helpers/error'11const DEFAULT_INTERVAL = 5012const DEFAULT_TIMEOUT = 100013function asyncUtils(act: Act, addResolver: (callback: () => void) => void): AsyncUtils {14  const wait = async (callback: () => boolean | void, { interval, timeout }: WaitOptions) => {15    const checkResult = () => {16      const callbackResult = callback()17      return callbackResult ?? callbackResult === undefined18    }19    const timeoutSignal = createTimeoutController(timeout)20    const waitForResult = async () => {21      while (true) {22        const intervalSignal = createTimeoutController(interval)23        timeoutSignal.onTimeout(() => intervalSignal.cancel())24        await intervalSignal.wrap(new Promise<void>(addResolver))25        if (checkResult() || timeoutSignal.timedOut) {26          return27        }28      }29    }30    if (!checkResult()) {31      await act(() => timeoutSignal.wrap(waitForResult()))32    }33    return !timeoutSignal.timedOut34  }35  const waitFor = async (36    callback: () => boolean | void,37    { interval = DEFAULT_INTERVAL, timeout = DEFAULT_TIMEOUT }: WaitForOptions = {}38  ) => {39    const safeCallback = () => {40      try {41        return callback()42      } catch (error: unknown) {43        return false44      }45    }46    const result = await wait(safeCallback, { interval, timeout })47    if (!result && timeout) {48      throw new TimeoutError(waitFor, timeout)49    }50  }51  const waitForValueToChange = async (52    selector: () => unknown,53    { interval = DEFAULT_INTERVAL, timeout = DEFAULT_TIMEOUT }: WaitForValueToChangeOptions = {}54  ) => {55    const initialValue = selector()56    const result = await wait(() => selector() !== initialValue, { interval, timeout })57    if (!result && timeout) {58      throw new TimeoutError(waitForValueToChange, timeout)59    }60  }61  const waitForNextUpdate = async ({62    timeout = DEFAULT_TIMEOUT63  }: WaitForNextUpdateOptions = {}) => {64    let updated = false65    addResolver(() => {66      updated = true67    })68    const result = await wait(() => updated, { interval: false, timeout })69    if (!result && timeout) {70      throw new TimeoutError(waitForNextUpdate, timeout)71    }72  }73  return {74    waitFor,75    waitForValueToChange,76    waitForNextUpdate77  }78}...

custom-fetch.js

Source: custom-fetch.js

1import '@ungap/global-this';2export default function customFetch(3  endpoint,4  {5    body,6    ...customConfig7  } = {},8  {9    fetch = globalThis.fetch,10    AbortController = globalThis.AbortController,11    responseType = 'text',12    timeout13  } = {},14) {15  let timeoutSignal = undefined;16  if (timeout) {17    timeoutSignal = createTimeoutSignal(AbortController, timeout);18  }19  const config = {20    method: body ? 'POST' : 'GET',21    ...customConfig22  }23  // from here: https://github.com/developit/redaxios/blob/ab73a298ba9849c59d670230a9d24fd7b329fb4d/src/index.js#L17124  if (body && typeof body === 'object' && typeof body.append !== 'function') {25    config.body = JSON.stringify(body);26    config.headers = {27      ...config.headers,28      'content-type': 'application/json'29    };30  } else if (body) {31    config.body = body;32  }33  if (timeoutSignal) {34    config.signal = timeoutSignal.signal;35  }36  return fetch(endpoint, config).then(async (response) => {37    if (timeoutSignal) {38      timeoutSignal.clear();39    }40    if (!response.ok) {41      const errorMessage = await response.text();42      return Promise.reject(new Error(errorMessage));43    }44    const result = {};45    // see https://github.com/developit/redaxios/blob/ab73a298ba9849c59d670230a9d24fd7b329fb4d/src/index.js#L204-L21346    for (const i in response) {47      if (typeof response[i] !== 'function') result[i] = response[i];48    }49    const data = await response[responseType]();50    result.data = data;51    try {52      // just in case we can parse the result53      result.data = JSON.parse(data);54    } catch(error) {55      // ignore56    }57    return result;58  });59}60function createTimeoutSignal(AbortController, timeout) {61  const controller = new AbortController();62  const timeoutId = globalThis.setTimeout(() => {63    controller.abort();64  }, timeout);65  return {66    signal: controller.signal,67    clear: () => {68      globalThis.clearTimeout(timeoutId);69    }70  };...

timeoutAbortSignal.ts

Source: timeoutAbortSignal.ts

1import { createTimeoutAbortSignal, joinAbortSignals } from "~/Util/PromiseUtils";2import { ApiRequestMiddleware, ApiRequest, ApiRequestInvoker, ApiResponse } from "../ApiInterfaces";34const timeoutAbortSignal = (defaultTimeoutMs: number): ApiRequestMiddleware => (request: ApiRequest, next: ApiRequestInvoker): Promise<ApiResponse> => {5    const timeoutMs = request.timeout || defaultTimeoutMs;6    const timeoutSignal = createTimeoutAbortSignal(timeoutMs);    7    const finalSignal = request.signal8        ? joinAbortSignals(timeoutSignal, request.signal)9        : timeoutSignal;10    return next({11        ...request,12        signal: finalSignal13    });14};
...

Using AI Code Generation

1import { act, renderHook } from '@testing-library/react-hooks'2import { useFetch } from './useFetch'3import { rest } from 'msw'4import { setupServer } from 'msw/node'5const server = setupServer(6    return res(ctx.json({ name: 'typicode' }))7  })8beforeAll(() => server.listen())9afterEach(() => server.resetHandlers())10afterAll(() => server.close())11test('should return user data', async () => {12  expect(result.current.loading).toBeTruthy()13  expect(result.current.data).toBeNull()14  await waitForNextUpdate()15  expect(result.current.loading).toBeFalsy()16  expect(result.current.data).toEqual({ name: 'typicode' })17})18test('should return error', async () => {19  server.use(20      return res(ctx.status(404))21    })22  expect(result.current.loading).toBeTruthy()23  expect(result.current.data).toBeNull()24  await waitForNextUpdate()25  expect(result.current.loading).toBeFalsy()26  expect(result.current.data).toBeNull()27  expect(result.current.error).toEqual('Not Found')28})29test('should timeout', async () => {30  server.use(31      return new Promise((resolve) => setTimeout(() => resolve(res(ctx.json({ name: 'typicode' }))), 1000))32    })33  expect(result.current.loading).toBeTruthy()34  expect(result.current.data).toBeNull()35  await waitForNextUpdate({ timeout: 500 })36  expect(result.current.loading).toBeTruthy()37  expect(result.current.data).toBeNull()38  expect(result.current.error).toEqual('Timeout')39})40test('should timeout with custom error message', async () => {41  server.use(

Using AI Code Generation

1import { timeoutSignal } from '@testing-library/react-hooks'2import { timeoutSignal } from '@testing-library/react-hooks'3import { timeoutSignal } from '@testing-library/react-hooks'4import { timeoutSignal } from '@testing-library/react-hooks'5import { timeoutSignal } from '@testing-library/react-hooks'6import { timeoutSignal } from '@testing-library/react-hooks'7import { timeoutSignal } from '@testing-library/react-hooks'8import { timeoutSignal } from '@testing-library/react-hooks'9import { timeoutSignal } from '@testing-library/react-hooks'10import { timeoutSignal } from '@testing-library/react-hooks'11import { timeoutSignal } from '@testing-library/react-hooks'12import { timeoutSignal } from '@testing-library/react-hooks'13import { timeoutSignal } from '@testing-library/react-hooks'14import { timeoutSignal } from '@testing-library/react-hooks'15import { timeoutSignal } from '@testing-library/react-hooks'16import { timeoutSignal } from '@testing-library/react-hooks'17import { timeoutSignal } from '@testing-library/react-hooks'18import { timeoutSignal } from '@testing-library/react-hooks'

Using AI Code Generation

1import { renderHook } from '@testing-library/react-hooks';2import { useFetch } from './useFetch';3test('should fetch data', async () => {4  await waitForNextUpdate();5  expect(result.current.data.title).toBe('sunt aut facere repellat provident occaecati excepturi optio reprehenderit');6});7test('should fetch data and timeout', async () => {8  await waitFor(() => result.current.error, { timeout: 1000 });9  expect(result.current.error).toBe('Request timed out');10});11test('should fetch data and timeout', async () => {12  await waitForNextUpdate({ timeout: 1000 });13  expect(result.current.error).toBe('Request timed out');14});15test('should fetch data and timeout', async () => {16  await waitForNextUpdate({ timeout: 3000 });17  expect(result.current.data.title).toBe('sunt aut facere repellat provident occaecati excepturi optio reprehenderit');18});19import { useState, useEffect } from 'react';20export const useFetch = (url, options) => {21  const [data, setData] = useState(null);22  const [error, setError] = useState(null);23  useEffect(() => {24    const controller = new AbortController();25    const { signal } = controller;26    const fetchData = async () => {27      try {28        const res = await fetch(url, { signal, ...options });29        const json = await res.json();30        setData(json);31      } catch (err) {32        setError(err);33      }34    };35    fetchData();36    return () => controller.abort();37  }, [url, options]);38  return { data, error };39};

Using AI Code Generation

1import { renderHook } from '@testing-library/react-hooks'2import useFetch from './useFetch'3const { result, waitForNextUpdate, waitForValueToChange } = renderHook(() =>4await waitForNextUpdate()5expect(result.current).toEqual(['some data', false])6await waitForValueToChange(() => result.current[1])7expect(result.current).toEqual(['some data', true])8import { useReducer } from 'react'9function useFetch(url) {10  const [state, dispatch] = useReducer(reducer, {11  })12  useEffect(() => {13    dispatch({ type: 'FETCH_INIT' })14    fetch(url)15      .then(response => response.json())16      .then(data => dispatch({ type: 'FETCH_SUCCESS', payload: data }))17  }, [url])18}19function reducer(state, action) {20  switch (action.type) {21      return { ...state, loading: true }22      return { ...state, loading: false, data: action.payload }23      throw new Error()24  }25}26import { renderHook, act } from '@testing-library/react-hooks'27import { useReducer } from 'react'28import useFetch from './useFetch'29jest.mock('react', () => ({30  ...jest.requireActual('react'),31  useReducer: jest.fn(),32}))33describe('useFetch', () => {34  test('should fetch data and update state', async () => {35    const mockFetch = jest.fn().mockImplementation(() =>36      Promise.resolve({37        json: () => Promise.resolve({ data: 'some data' }),38      })39    const mockDispatch = jest.fn()40    useReducer.mockImplementation(() => [{ data: null, loading: true }, mockDispatch])41    await waitForNextUpdate()42    expect(result.current).toEqual([{ data: 'some data', loading: false }, mockDispatch])43  })44})45import { renderHook, act } from '@testing-library/react-hooks'46import { useReducer }

Using AI Code Generation

1import { renderHook, act } from '@testing-library/react-hooks';2import { useTimeout } from './useTimeout';3test('should use timeout', async () => {4  const { result, waitForNextUpdate, timeoutSignal } = renderHook(() =>5    useTimeout(1000)6  );7  expect(result.current).toBe(false);8  await act(async () => {9    await waitForNextUpdate();10  });11  expect(result.current).toBe(true);12});13import { useState, useEffect } from 'react';14export const useTimeout = (timeout) => {15  const [isTimeout, setIsTimeout] = useState(false);16  useEffect(() => {17    const timer = setTimeout(() => {18      setIsTimeout(true);19    }, timeout);20    return () => clearTimeout(timer);21  }, [timeout]);22  return isTimeout;23};

Using AI Code Generation

1import { renderHook } from '@testing-library/react-hooks';2import { useFetch } from './useFetch';3const mockFetch = jest.fn();4mockFetch.mockResolvedValue({5  json: () => Promise.resolve({ data: 'test data' }),6});7global.fetch = mockFetch;8describe('useFetch', () => {9  it('should fetch data', async () => {10    const { result, waitForNextUpdate } = renderHook(() =>11    );12    expect(result.current.data).toBe(null);13    expect(result.current.loading).toBe(true);14    expect(result.current.error).toBe(null);15    await waitForNextUpdate();16    expect(result.current.data).toBe('test data');17    expect(result.current.loading).toBe(false);18    expect(result.current.error).toBe(null);19  });20});21import { useState, useEffect } from 'react';22export const useFetch = (url) => {23  const [data, setData] = useState(null);24  const [loading, setLoading] = useState(true);25  const [error, setError] = useState(null);26  useEffect(() => {27    fetch(url)28      .then((res) => res.json())29      .then((data) => {30        setData(data);31        setLoading(false);32        setError(null);33      })34      .catch((err) => {35        setData(null);36        setLoading(false);37        setError(err);38      });39  }, [url]);40  return { data, loading, error };41};42import { renderHook } from '@testing-library/react-hooks';43import { useFetch } from './useFetch';44const mockFetch = jest.fn();45mockFetch.mockResolvedValue({46  json: () => Promise.resolve({ data: 'test data' }),47});48global.fetch = mockFetch;49describe('useFetch', () => {50  it('should fetch data', async () => {51    const { result, waitForNextUpdate } = renderHook(() =>52    );53    expect(result.current.data).toBe(null);54    expect(result.current.loading).toBe(true);55    expect(result.current.error).toBe(null);56    await waitForNextUpdate();

Using AI Code Generation

1import { useTimeout } from './useTimeout';2import { renderHook, act } from '@testing-library/react-hooks';3describe('useTimeout', () => {4  it('should work', () => {5    const { result, waitForNextUpdate, timeoutSignal } = renderHook(() =>6      useTimeout()7    );8    expect(result.current).toBe(false);9    act(() => {10      result.current[1]();11    });12    expect(result.current).toBe(true);13    act(() => {14      timeoutSignal();15    });16    expect(result.current).toBe(false);17  });18});19import { useState } from 'react';20export const useTimeout = () => {21  const [timeout, setTimeout] = useState(false);22  let timeoutId;23  const startTimeout = () => {24    timeoutId = setTimeout(() => {25      setTimeout(false);26    }, 1000);27  };28  const cancelTimeout = () => {29    clearTimeout(timeoutId);30    setTimeout(false);31  };32  return [timeout, startTimeout, cancelTimeout];33};34export declare const useTimeout: () => [boolean, () => void, () => void];35export declare const useTimeout: () => [boolean, () => void, () => void];36export declare const useTimeout: () => [boolean, () => void, () => void];37export declare const useTimeout: () => [boolean, () => void, () => void];38export declare const useTimeout: () => [boolean, () => void, () => void];39export declare const useTimeout: () => [boolean, () => void, () => void];40export declare const useTimeout: () => [boolean, () => void, () => void];

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