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How to use contextA method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

withContext.spec.js

Source:withContext.spec.js

1import React, { Component, PureComponent } from 'react'2import PropTypes from 'prop-types'3import renderer from 'react-test-renderer'4import { createSelector, createStructuredSelector } from 'reselect'5import Enzyme, { mount } from 'enzyme'6import Adapter from 'enzyme-adapter-react-16'7import withContext from '../withContext'8Enzyme.configure({ adapter: new Adapter() })9function setup(propOverrides = {}) {10  const ref = React.createRef()11  const props = {12    ref,13    c: 3,14    ...propOverrides15  }16  class SomeComponent extends Component {17    static propTypes = {18      a: PropTypes.number.isRequired, // injected from ContextA19      b: PropTypes.number.isRequired, // injected from ContextB20      c: PropTypes.number.isRequired21    }22    render() {23      const { a, b, c } = this.props24      return [25        <div key="a" id="context-a">26          {a}27        </div>,28        <div key="b" id="context-b">29          {b}30        </div>,31        <div key="c" id="props-c">32          {c}33        </div>34      ]35    }36  }37  // The context will normally be exported elsewhere38  const ContextA = React.createContext()39  const ContextB = React.createContext()40  // this would normally look like41  //   export default withContext(...)(SomeComponent)42  const Consumer = withContext([ContextA, ContextB], function mapContextToProps(43    context44  ) {45    return context46  })(SomeComponent)47  const tree = renderer.create(48    <ContextA.Provider value={{ a: 1 }}>49      <ContextB.Provider value={{ b: 2 }}>50        <div className="stuff">some other content</div>51        <div className="nested element">52          <Consumer {...props} />53        </div>54      </ContextB.Provider>55    </ContextA.Provider>56  )57  return {58    props,59    SomeComponent,60    ContextA,61    ContextB,62    Consumer,63    tree64  }65}66describe('ContextConsumerHOC', () => {67  it('matches snapshot', () => {68    const { tree } = setup()69    expect(tree.toJSON()).toMatchSnapshot()70  })71  it('should forward the references', () => {72    const { SomeComponent, props } = setup()73    const { ref } = props74    expect(ref.current.constructor).toEqual(SomeComponent)75  })76  it('should pass ownProps to mapContextToProps', () => {77    const props = { b: 2 }78    const childContextA = { a: 1 }79    const ContextA = React.createContext(childContextA)80    const Consumer = withContext([ContextA], (context, ownProps) => {81      expect(ownProps).toEqual(props)82      return {}83    })((props) => <div {...props} />)84    const tree = renderer.create(85      <ContextA.Provider value={childContextA}>86        <Consumer {...props} />87      </ContextA.Provider>88    )89    expect(tree.toJSON()).toMatchSnapshot()90  })91  it('should not re-render PureComponents if props did not change', () => {92    const spy = jest.fn()93    const ContextA = React.createContext()94    const ContextB = React.createContext()95    class NakedPureComponent extends PureComponent {96      render() {97        spy() // should run once98        return <div />99      }100    }101    const Consumer = withContext(102      [ContextA, ContextB],103      function mapContextToProps(context) {104        return context105      }106    )(NakedPureComponent)107    class App extends Component {108      static propTypes = {109        b: PropTypes.number110      }111      constructor(props) {112        super(props)113        this.state = {114          childContextB: { b: props.b }115        }116        // Keep reference to sabe context object to prevent re-renders117        this.childContextA = { a: 1 } // a doesn't change in this example118      }119      render() {120        return (121          <ContextA.Provider value={this.childContextA}>122            <ContextB.Provider value={this.state.childContextB}>123              <div className="stuff">some other content</div>124              <div className="nested element">125                <Consumer />126              </div>127            </ContextB.Provider>128          </ContextA.Provider>129        )130      }131    }132    const wrapper = mount(<App b={2} />)133    wrapper.setState({ random: 1 })134    // evidently, it is called 1 times135    expect(spy).toHaveBeenCalledTimes(1)136    wrapper.setState({137      childContextB: {138        b: 22139      }140    })141    // called 2 times because there is an update in the PureComponent' props142    expect(spy).toHaveBeenCalledTimes(2)143  })144  it('allows creating namespace selectors for individual context', () => {145    const contextA = { a: 1 }146    const contextB = { b: 2 }147    const ContextA = React.createContext()148    const ContextB = React.createContext()149    function NakedComponent(props) {150      return <div className="component" {...props} />151    }152    const App = withContext([ContextA, ContextB], function mapContextToProps({153      a,154      b155    }) {156      return {157        awrap: { a }, // WARNING: this creates a new object, use some type of memoization158        b159      }160    })(NakedComponent)161    const wrapper = mount(162      <ContextA.Provider value={contextA}>163        <ContextB.Provider value={contextB}>164          <App />165        </ContextB.Provider>166      </ContextA.Provider>167    )168    const component = wrapper.find('.component')169    expect(component.prop('awrap')).toEqual(contextA)170    expect(component.prop('b')).toEqual(2)171  })172  it('allows using memoization with reselect', () => {173    const spy = jest.fn()174    // selectors175    const getA = (context) => context.a176    // simple example177    const contextA = { a: 1, b: 2, c: 3 }178    const ContextA = React.createContext(contextA)179    const NakedComponent = (props) => {180      spy(props)181      return <div className="component" {...props} />182    }183    const App = withContext([ContextA], function mapContextToProps(context) {184      return {185        a: getA(context)186      }187    })(NakedComponent)188    const wrapper = mount(189      <ContextA.Provider value={contextA}>190        <App />191      </ContextA.Provider>192    )193    const component = wrapper.find('.component')194    expect(component.prop('a')).toEqual(contextA.a)195    expect(component.prop('b')).toBeUndefined()196    expect(component.prop('c')).toBeUndefined()197    expect(spy).toHaveBeenCalledWith({ a: 1 })198  })199  it('allows using memoization with reselect 2 (test using PureComponent)', () => {200    const spy = jest.fn()201    // selectors202    const getB = (context) => context.b203    const getC = (context) => context.c204    const getD = createSelector([getB, getC], (b, c) => b + c)205    // simple example206    const contextA = { a: 1, b: 2, c: 3 }207    const ContextA = React.createContext(contextA)208    // Because naked component doesn't care about prop 'c',209    // it only renders if 'a' or 'b' change, as expected.210    class NakedComponent extends PureComponent {211      render() {212        spy(this.props)213        return <div className="component" {...this.props} />214      }215    }216    const App = withContext([ContextA], function mapContextToProps(context) {217      return {218        d: getD(context)219      }220    })(NakedComponent)221    const Root = (props) => (222      <ContextA.Provider value={{ ...contextA, ...props }}>223        <App />224      </ContextA.Provider>225    )226    const wrapper = mount(<Root c={3} />)227    wrapper.setProps({ a: 2 })228    const component = wrapper.find('.component')229    expect(component.prop('a')).toBeUndefined()230    expect(component.prop('b')).toBeUndefined()231    expect(component.prop('c')).toBeUndefined()232    expect(component.prop('d')).toEqual(contextA.b + contextA.c)233    expect(spy).toHaveBeenCalledWith({ d: contextA.b + contextA.c })234    expect(spy).toHaveBeenCalledTimes(1)235  })236  it('allows using memoization with reselect 3 (namespaces with createStructuredSelector)', () => {237    const spy = jest.fn()238    // selectors239    const getB = (context) => context.b240    const getC = (context) => context.c241    const getD = createSelector([getB, getC], (b, c) => b + c)242    // simple example243    const contextA = { a: 1, b: 2, c: 3 }244    const ContextA = React.createContext(contextA)245    // Because naked component doesn't care about prop 'c',246    // it only renders if 'a' or 'b' change, as expected.247    class NakedComponent extends PureComponent {248      render() {249        spy(this.props)250        return <div className="component" {...this.props} />251      }252    }253    const App = withContext(254      [ContextA],255      createStructuredSelector({256        context: createStructuredSelector({257          d: getD258        })259      })260    )(NakedComponent)261    const Root = (props) => (262      <ContextA.Provider value={{ ...contextA, ...props }}>263        <App />264      </ContextA.Provider>265    )266    const wrapper = mount(<Root c={3} />)267    wrapper.setProps({ a: 2 })268    const component = wrapper.find('.component')269    expect(component.prop('context').a).toBeUndefined()270    expect(component.prop('context').b).toBeUndefined()271    expect(component.prop('context').c).toBeUndefined()272    expect(component.prop('context').d).toEqual(contextA.b + contextA.c)273    expect(spy).toHaveBeenCalledWith({274      context: { d: contextA.b + contextA.c }275    })276    expect(spy).toHaveBeenCalledTimes(1)277  })...

reducers.js

Source:reducers.js

1/**2 * External dependencies3 */4import deepFreeze from 'deep-freeze';5/**6 * Internal dependencies7 */8import queryStateReducer from '../reducers';9import { setQueryValue, setValueForQueryContext } from '../actions';10describe( 'queryStateReducer', () => {11	const originalState = deepFreeze( {12		contexta: JSON.stringify( {13			foo: 'bar',14			cheese: 'pizza',15		} ),16	} );17	it(18		'returns original state when the action is not of the type being ' +19			'processed',20		() => {21			expect(22				queryStateReducer( originalState, { type: 'invalid' } )23			).toBe( originalState );24		}25	);26	describe( 'SET_QUERY_KEY_VALUE action', () => {27		it(28			'returns original state when incoming query-state key value ' +29				'matches what is already in the state',30			() => {31				expect(32					queryStateReducer(33						originalState,34						setQueryValue( 'contexta', 'foo', 'bar' )35					)36				).toBe( originalState );37			}38		);39		it(40			'returns new state when incoming query-state key exist ' +41				'but the value is a new value',42			() => {43				const newState = queryStateReducer(44					originalState,45					setQueryValue( 'contexta', 'foo', 'zed' )46				);47				expect( newState ).not.toBe( originalState );48				expect( newState ).toEqual( {49					contexta: JSON.stringify( {50						foo: 'zed',51						cheese: 'pizza',52					} ),53				} );54			}55		);56		it(57			'returns new state when incoming query-state key does not ' +58				'exist',59			() => {60				const newState = queryStateReducer(61					originalState,62					setQueryValue( 'contexta', 'burger', 'pizza' )63				);64				expect( newState ).not.toBe( originalState );65				expect( newState ).toEqual( {66					contexta: JSON.stringify( {67						foo: 'bar',68						cheese: 'pizza',69						burger: 'pizza',70					} ),71				} );72			}73		);74	} );75	describe( 'SET_QUERY_CONTEXT_VALUE action', () => {76		it(77			'returns original state when incoming context value matches ' +78				'what is already in the state',79			() => {80				expect(81					queryStateReducer(82						originalState,83						setValueForQueryContext( 'contexta', {84							foo: 'bar',85							cheese: 'pizza',86						} )87					)88				).toBe( originalState );89			}90		);91		it(92			'returns new state when incoming context value is different ' +93				'than what is already in the state',94			() => {95				const newState = queryStateReducer(96					originalState,97					setValueForQueryContext( 'contexta', {98						bar: 'foo',99						pizza: 'cheese',100					} )101				);102				expect( newState ).not.toBe( originalState );103				expect( newState ).toEqual( {104					contexta: JSON.stringify( {105						bar: 'foo',106						pizza: 'cheese',107					} ),108				} );109			}110		);111		it(112			'returns new state when incoming context does not exist in the ' +113				'state',114			() => {115				const newState = queryStateReducer(116					originalState,117					setValueForQueryContext( 'contextb', {118						foo: 'bar',119					} )120				);121				expect( newState ).not.toBe( originalState );122				expect( newState ).toEqual( {123					contexta: JSON.stringify( {124						foo: 'bar',125						cheese: 'pizza',126					} ),127					contextb: JSON.stringify( {128						foo: 'bar',129					} ),130				} );131			}132		);133	} );...

Using AI Code Generation

1const contextA = require('fast-check-monorepo/contextA');2contextA();3const contextB = require('fast-check-monorepo/contextB');4contextB();5const contextA = require('fast-check-monorepo/contextA');6contextA();7const contextB = require('fast-check-monorepo/contextB');8contextB();9const contextA = require('fast-check-monorepo/contextA');10contextA();11const contextB = require('fast-check-monorepo/contextB');12contextB();13const contextA = require('fast-check-monorepo/contextA');14contextA();15const contextB = require('fast-check-monorepo/contextB');16contextB();17const contextA = require('fast-check-monorepo/contextA');18contextA();19const contextB = require('fast-check-mon

Using AI Code Generation

1import { contextA } from 'fast-check-monorepo';2contextA();3import { contextB } from 'fast-check-monorepo';4contextB();5import { contextA } from 'fast-check-monorepo';6contextA();7import { contextB } from 'fast-check-monorepo';8contextB();9      at Resolver.resolveModule (node_modules/jest-resolve/build/inde

Using AI Code Generation

1import { contextA } from 'fast-check-monorepo';2import { contextB } from 'fast-check-monorepo';3import { contextC } from 'fast-check-monorepo';4import { contextD } from 'fast-check-monorepo';5import { contextE } from 'fast-check-monorepo';6import { contextF } from 'fast-check-monorepo';7import { contextG } from 'fast-check-monorepo';8import { contextH } from 'fast-check-monorepo';9import { contextI } from 'fast-check-monorepo';10import { contextJ } from 'fast-check-monorepo';11import { contextK } from 'fast-check-monorepo';12import { contextL } from 'fast-check-monorepo';13import { contextM } from 'fast-check-monorepo';14import { contextN } from 'fast-check-monorepo';15import { contextO } from 'fast-check-monorepo';16import { contextP } from 'fast-check-monorepo';17import { contextQ } from 'fast-check-monorepo';18import { contextR } from 'fast-check-monorepo';19import { contextS } from 'fast-check-monorepo

Using AI Code Generation

1const contextA = require(‘fast-check-monorepo/contextA’);2contextA();3const contextB = require(‘fast-check-monorepo/contextB’);4contextB();5const contextA = require(‘fast-check-monorepo/contextA’);6contextA();7const contextB = require(‘fast-check-monorepo/contextB’);8contextB();

Using AI Code Generation

1const { contextA } = require('@fast-check/contextA')2const { contextB } = require('@fast-check/contextB')3contextA()4contextB()5{6  "scripts": {7  },8  "dependencies": {9  }10}11const { contextA } = require('@fast-check/contextA')12const { contextB } = require('@fast-check/contextB')13const { beforeAll, afterAll, test } = require('jest-circus')14beforeAll(() => {15  const { currentTest } = require('jest-circus/build/state')16  currentTest.context = {17  }18})19afterAll(() => {20  const { currentTest } = require('jest-circus/build/state')21})22test('test', () => {23  const { currentTest } = require('jest-circus/build/state')24  currentTest.context.contextA()25  currentTest.context.contextB()26})

Using AI Code Generation

1const contextA = require('fast-check-monorepo/contextA');2const contextB = require('fast-check-monorepo/contextB');3const contextC = require('fast-check-monorepo/contextC');4contextA.method();5contextB.method();6contextC.method();7const ContextA = require('./src/ContextA');8let instance = null;9module.exports = () => {10  if (instance === null) {11    instance = new ContextA();12  }13  return instance;14};15const ContextB = require('./src/ContextB');16let instance = null;

Using AI Code Generation

1const contextA = require('fast-check-monorepo');2contextA.methodA();3module.exports = {4  methodA: () => {5    console.log('methodA');6  },7};8const contextA = require('fast-check-monorepo');9const a = new contextA.ClassA();10a.methodA();11class ClassA {12  methodA() {13    console.log('methodA');14  }15}16module.exports = {17};18const contextA = require('fast-check-monorepo');19const a = new contextA.ClassA();20a.methodA = () => {21  console.log('mocked methodA');22};23a.methodA();24class ClassA {25  methodA() {26    console.log('methodA');27  }28}29module.exports = {30};31const contextA = require('fast-check-monorepo');32const a = new contextA.ClassA();33a.methodB = () => {34  console.log('mocked methodB');35};36a.methodB();37class ClassA {38  methodB() {39    console.log('methodB');40  }41}42module.exports = {43};

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