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How to use callbackValue1 method in testing-library-react-hooks

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

Publisher.js

Source:Publisher.js

1//We do not want extra logs in console, because jasmine will tell us everything by itself2GRASP.errorHandler.setQuietMode(true);3describe("Publisher.when", function () {4  beforeEach(function(){5    this.mediator = new GRASP.Mediator();6    this.event1 = new GRASP.Event("event1", {});7    this.event2 = new GRASP.Event("event2", {});8    this.event3 = new GRASP.Event("event3", {});9    this.listeners = [Object.create(GRASP.iListener), Object.create(GRASP.iListener), Object.create(GRASP.iListener), Object.create(GRASP.iListener)];10    this.mediator.addListener('event1', this.listeners[0]);11    this.mediator.addListener('event2', this.listeners[1]);12    this.mediator.addListener('event3', this.listeners[2]);13    this.mediator.addListener('event1', this.listeners[3]);14    var promise = new GRASP.Promise(jQuery);15    this.publisher = new GRASP.Publisher(this.mediator, promise);16  });17  it("should execute planned events sequentially, one by one", function () {18    var that = this;19    /* PREPARE */20    // create listeners21    this.listeners[0].eventListener = function (event) {22      setTimeout(function(){event.setResponse(event.getData() + ' listener1Data')}, 100);23    };24    this.listeners[1].eventListener = function (event) {25      setTimeout(function(){event.setResponse(event.getData() + ' listener2Data')}, 100);26    };27    /* TEST LOGIC */28    // schedule successive events29    var callbackValue1 = null;30    var callbackValue2 = null;31    var event1 = this.publisher.createEvent('event1');32    this.publisher.when(event1).then(function(data){33      callbackValue1 = 'a ' + data;34      return that.publisher.publish('event2', callbackValue1);35    }).then(function(data){36        callbackValue2 = 'b ' + data;37    });38    this.publisher.publishEvent(event1);39    /* VERIFICATION */40    // event1 setResponse must be called after 100, event2 after 100 after that, so41    // after 100 that must be still callbackValue1 = null and callbackValue2 = null42    waits(10);43    runs(function(){44      expect(callbackValue1).toEqual(null);45      expect(callbackValue2).toEqual(null);46    });47    // after 110 that must be callbackValue1 = 'a listener1Data' and callbackValue2 = null48    waits(100);49    runs(function(){50      expect(callbackValue1).toEqual('a undefined listener1Data');51      expect(callbackValue2).toEqual(null);52    });53    // after 210 that must be still callbackValue1 = 'a listener1Data' and callbackValue2 = 'b listener1Data'54    waits(100);55    runs(function(){56      expect(callbackValue1).toEqual('a undefined listener1Data');57      expect(callbackValue2).toEqual('b a undefined listener1Data listener2Data');58    });59  });60  it("should work correct if the event setResponse happens immediately", function () {61    var that = this;62    /* PREPARE */63    // create listeners64    this.listeners[0].eventListener = function (event) {65      event.setResponse(event.getData() + ' listener1Data');66    };67    this.listeners[1].eventListener = function (event) {68      setTimeout(function(){event.setResponse(event.getData() + ' listener2Data')}, 100);69    };70    /* TEST LOGIC */71    // schedule successive events72    var callbackValue1 = null;73    var callbackValue2 = null;74    var event1 = this.publisher.createEvent('event1');75    this.publisher.when(event1).then(function(data){76      callbackValue1 = 'a ' + data;77      return that.publisher.publish('event2', callbackValue1);78    }).then(function(data){79        callbackValue2 = 'b ' + data;80    });81    this.publisher.publishEvent(event1);82    /* VERIFICATION */83    // event1 setResponse was called immediately, so84    // here we already have callbackValue1 = 'a undefined listener1Data' and callbackValue2 = null85    expect(callbackValue1).toEqual('a undefined listener1Data');86    expect(callbackValue2).toEqual(null);87    waits(110);88    // after 110 that must be  callbackValue1 = 'a undefined listener1Data' and callbackValue2 = 'b a undefined listener1Data listener2Data'89    runs(function(){90      expect(callbackValue1).toEqual('a undefined listener1Data');91      expect(callbackValue2).toEqual('b a undefined listener1Data listener2Data');92    });93  });94  it("should work correct if listener is using publisher.when too", function () {95    var that = this;96    /* PREPARE */97    // create listeners98    this.listeners[0].eventListener = function (event) {99      setTimeout(function(){100        var event3 = that.publisher.createEvent('event3');101        that.publisher.when(event3).then(function(data){102          event.setResponse(data + ' listener1Data');103        });104        that.publisher.publishEvent(event3);105      }, 100);106    };107    this.listeners[1].eventListener = function (event) {108      setTimeout(function(){event.setResponse(event.getData() + ' listener2Data')}, 100);109    };110    this.listeners[2].eventListener = function (event) {111      setTimeout(function(){event.setResponse(event.getData() + ' listener3Data')}, 100);112    };113    /* TEST LOGIC */114    // schedule successive events115    var callbackValue1 = null;116    var callbackValue2 = null;117    var event1 = this.publisher.createEvent('event1');118    this.publisher.when(event1).then(function(data){119      callbackValue1 = 'a ' + data;120      return that.publisher.publish('event2', callbackValue1);121    }).then(function(data){122        callbackValue2 = 'b ' + data;123    });124    this.publisher.publishEvent(event1);125    /* VERIFICATION */126    // event1 setResponse must be called after 100, event2 after 100 after that, so127    // after 100 that must be still callbackValue1 = null and callbackValue2 = null128    waits(10);129    runs(function(){130      expect(callbackValue1).toEqual(null);131      expect(callbackValue2).toEqual(null);132    });133    // after 110 that must be still callbackValue1 = null and callbackValue2 = null134    waits(100);135    runs(function(){136      expect(callbackValue1).toEqual(null);137      expect(callbackValue2).toEqual(null);138    });139    // after 210 that must be still callbackValue1 = 'a undefined listener3Data listener1Data' and callbackValue2 = null140    waits(100);141    runs(function(){142      expect(callbackValue1).toEqual('a undefined listener3Data listener1Data');143      expect(callbackValue2).toEqual(null);144    });145    // after 310 that must be still callbackValue1 = 'a undefined listener3Data listener1Data' and callbackValue2 = 'b a undefined listener3Data listener1Data listener2Data'146    waits(100);147    runs(function(){148      expect(callbackValue1).toEqual('a undefined listener3Data listener1Data');149      expect(callbackValue2).toEqual('b a undefined listener3Data listener1Data listener2Data');150    });151  });...

useMemo.test.js

Source:useMemo.test.js

1import { useMemo, useCallback } from 'react';2import { renderHook, cleanup } from 'react-hooks-testing-library';3describe('useCallback test', () => {4  afterEach(cleanup);5  test('should handle useMemo hook', () => {6    const { result, rerender } = renderHook(7      ({ value }) => useMemo(() => ({ value }), [value]),8      {9        initialProps: { value: 1 }10      }11    );12    const value1 = result.current;13    expect(value1).toEqual({ value: 1 });14    rerender();15    const value2 = result.current;16    expect(value2).toEqual({ value: 1 });17    expect(value2).toBe(value1);18    rerender({ value: 2 });19    const value3 = result.current;20    expect(value3).toEqual({ value: 2 });21    expect(value3).not.toBe(value1);22  });23  test('should handle useCallback hook', () => {24    const { result, rerender } = renderHook(25      ({ value }) => {26        const callback = () => ({ value });27        return useCallback(callback, [value]);28      },29      {30        initialProps: { value: 1 }31      }32    );33    const callback1 = result.current;34    const callbackValue1 = callback1();35    expect(callbackValue1).toEqual({ value: 1 });36    const callback2 = result.current;37    const callbackValue2 = callback2();38    expect(callbackValue2).toEqual({ value: 1 });39    expect(callback2).toBe(callback1);40    rerender({ value: 2 });41    const callback3 = result.current;42    const callbackValue3 = callback3();43    expect(callbackValue3).toEqual({ value: 2 });44    expect(callback3).not.toBe(callback1);45  });...

Using AI Code Generation

1I’m using the following code to import the library:2import { renderHook, act } from 'testing-library-react-hooks';3"scripts": {4  },5I’m using the following code to import the library in the test file:6import { renderHook, act } from 'testing-library-react-hooks';7I’m using the following code to import the library in the test file:8import { renderHook, act } from 'testing-library-react-hooks';9I’m using the following code to import the library in the test file:10import { renderHook, act } from 'testing-library-react-hooks';11I’m using the following code to import the library in the test file:12import { renderHook, act } from 'testing-library-react-hooks';13I’m using the following code to import the library in the test file:14import { renderHook, act } from 'testing-library-react-hooks';

Using AI Code Generation

1import { callbackValue1 } from 'testing-library-react-hooks';2import { callbackValue2 } from 'testing-library-react-hooks';3import { callbackValue3 } from 'testing-library-react-hooks';4import { callbackValue4 } from 'testing-library-react-hooks';5import { callbackValue5 } from 'testing-library-react-hooks';6import { callbackValue6 } from 'testing-library-react-hooks';7import { callbackValue7 } from 'testing-library-react-hooks';8import { callbackValue8 } from 'testing-library-react-hooks';9import { callbackValue9 } from 'testing-library-react-hooks';10import { callbackValue10 } from 'testing-library-react-hooks';11import { callbackValue11 } from 'testing-library-react-hooks';12import { callbackValue12 } from 'testing-library-react-hooks';13import { callbackValue13 } from 'testing-library-react-hooks';14import { callbackValue14 } from 'testing-library-react-hooks';15import { callbackValue15 } from 'testing-library-react-hooks';16import { callbackValue16 } from 'testing-library-react-hooks';17import { callbackValue17 } from 'testing-library-react-hooks';18import { callbackValue18 } from 'testing-library-react-hooks';19import { callbackValue19 } from 'testing-library-react-hooks';

Using AI Code Generation

1import {callbackValue1} from 'testing-library-react-hooks';2import {callbackValue2} from 'testing-library-react-hooks';3import {callbackValue1} from 'testing-library-react-hooks';4import {callbackValue2} from 'testing-library-react-hooks';5import {callbackValue1} from 'testing-library-react-hooks';6import {callbackValue2} from 'testing-library-react-hooks';7import {callbackValue1} from 'testing-library-react-hooks';8import {callbackValue2} from 'testing-library-react-hooks';9import {callbackValue1} from 'testing-library-react-hooks';10import {callbackValue2} from 'testing-library-react-hooks';11import {callbackValue1} from 'testing-library-react-hooks';12import {callbackValue2} from 'testing-library-react-hooks';13import {callbackValue1} from 'testing-library-react-hooks';14import {callbackValue2} from 'testing-library-react-hooks';15import {callbackValue1} from 'testing-library-react-hooks';16import {callbackValue2} from 'testing-library-react-hooks';17import {callbackValue1} from 'testing-library-react

Using AI Code Generation

1import { callbackValue1 } from "testing-library-react-hooks";2import { callbackValue2 } from "testing-library-react-hooks";3import { callbackValue2 } from "testing-library-react-hooks";4import { callbackValue1 } from "testing-library-react-hooks";5import { callbackValue1 } from "testing-library-react-hooks";6import { callbackValue2 } from "testing-library-react-hooks";7import { callbackValue2 } from "testing-library-react-hooks";8import { callbackValue1 } from "testing-library-react-hooks";9import { callbackValue1 } from "testing-library-react-hooks";10import { callbackValue2 } from "testing-library-react-hooks";11import { callbackValue2 } from "testing-library-react-hooks";12import { callbackValue1 } from "testing-library-react-hooks";13import { callbackValue1 } from "testing-library-react-hooks";14import { callbackValue2 } from "testing-library-react-hooks";15import { callbackValue2 } from "testing-library-react-hooks";16import { callbackValue1 } from "testing-library-react-hooks";17import { callbackValue1 } from "testing-library-react

Using AI Code Generation

1import { act, renderHook } from '@testing-library/react-hooks';2import { useAsync } from './async-hook';3describe('useAsync', () => {4  it('should return the correct values', async () => {5    const { result, waitForNextUpdate } = renderHook(() => useAsync());6    expect(result.current.value).toBeUndefined();7    expect(result.current.error).toBeUndefined();8    expect(result.current.loading).toBe(true);9    await act(async () => {10      await waitForNextUpdate();11    });12    expect(result.current.value).toBe('test1');13    expect(result.current.error).toBeUndefined();14    expect(result.current.loading).toBe(false);15  });16});17import { useCallback, useState } from 'react';18export function useAsync() {19  const [value, setValue] = useState();20  const [error, setError] = useState();21  const [loading, setLoading] = useState(true);22  const callbackValue1 = useCallback(() => {23    return new Promise((resolve, reject) => {24      setTimeout(() => {25        setValue('test1');26        setLoading(false);27        resolve();28      }, 1000);29    });30  }, []);31  return {32  };33}34import { useCallback } from "react";35export function useCallbackWithArguments<T extends (...args: any[]) => any>(36) {37  return useCallback(38    (...args: Parameters<T>) => {39      callback(...args);

Using AI Code Generation

1it("should return the value of the variable called value1 in the custom hook called useTestingHook", async () => {2  const value1 = await callbackValue1(() => {3    useTestingHook();4  });5  expect(value1).toBe("default value");6  await new Promise((resolve) => setTimeout(resolve, 1000));

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