How to use mockError method in root

Best JavaScript code snippet using root

console-test.js

Source:console-test.js

1/**2 * Copyright (c) Facebook, Inc. and its affiliates.3 *4 * This source code is licensed under the MIT license found in the5 * LICENSE file in the root directory of this source tree.6 *7 * @flow8 */9describe('console', () => {10  let React;11  let ReactDOM;12  let act;13  let fakeConsole;14  let mockError;15  let mockInfo;16  let mockLog;17  let mockWarn;18  let patchConsole;19  let unpatchConsole;20  beforeEach(() => {21    jest.resetModules();22    const Console = require('react-devtools-shared/src/backend/console');23    patchConsole = Console.patch;24    unpatchConsole = Console.unpatch;25    // Patch a fake console so we can verify with tests below.26    // Patching the real console is too complicated,27    // because Jest itself has hooks into it as does our test env setup.28    mockError = jest.fn();29    mockInfo = jest.fn();30    mockLog = jest.fn();31    mockWarn = jest.fn();32    fakeConsole = {33      error: mockError,34      info: mockInfo,35      log: mockLog,36      warn: mockWarn,37    };38    Console.dangerous_setTargetConsoleForTesting(fakeConsole);39    // Note the Console module only patches once,40    // so it's important to patch the test console before injection.41    patchConsole({42      appendComponentStack: true,43      breakOnWarn: false,44    });45    const inject = global.__REACT_DEVTOOLS_GLOBAL_HOOK__.inject;46    global.__REACT_DEVTOOLS_GLOBAL_HOOK__.inject = internals => {47      inject(internals);48      Console.registerRenderer(internals);49    };50    React = require('react');51    ReactDOM = require('react-dom');52    const utils = require('./utils');53    act = utils.act;54  });55  function normalizeCodeLocInfo(str) {56    return (57      str &&58      str.replace(/\n +(?:at|in) ([\S]+)[^\n]*/g, function(m, name) {59        return '\n    in ' + name + ' (at **)';60      })61    );62  }63  it('should not patch console methods that do not receive component stacks', () => {64    expect(fakeConsole.error).not.toBe(mockError);65    expect(fakeConsole.info).toBe(mockInfo);66    expect(fakeConsole.log).toBe(mockLog);67    expect(fakeConsole.warn).not.toBe(mockWarn);68  });69  it('should only patch the console once', () => {70    const {error, warn} = fakeConsole;71    patchConsole({72      appendComponentStack: true,73      breakOnWarn: false,74    });75    expect(fakeConsole.error).toBe(error);76    expect(fakeConsole.warn).toBe(warn);77  });78  it('should un-patch when requested', () => {79    expect(fakeConsole.error).not.toBe(mockError);80    expect(fakeConsole.warn).not.toBe(mockWarn);81    unpatchConsole();82    expect(fakeConsole.error).toBe(mockError);83    expect(fakeConsole.warn).toBe(mockWarn);84  });85  it('should pass through logs when there is no current fiber', () => {86    expect(mockLog).toHaveBeenCalledTimes(0);87    expect(mockWarn).toHaveBeenCalledTimes(0);88    expect(mockError).toHaveBeenCalledTimes(0);89    fakeConsole.log('log');90    fakeConsole.warn('warn');91    fakeConsole.error('error');92    expect(mockLog).toHaveBeenCalledTimes(1);93    expect(mockLog.mock.calls[0]).toHaveLength(1);94    expect(mockLog.mock.calls[0][0]).toBe('log');95    expect(mockWarn).toHaveBeenCalledTimes(1);96    expect(mockWarn.mock.calls[0]).toHaveLength(1);97    expect(mockWarn.mock.calls[0][0]).toBe('warn');98    expect(mockError).toHaveBeenCalledTimes(1);99    expect(mockError.mock.calls[0]).toHaveLength(1);100    expect(mockError.mock.calls[0][0]).toBe('error');101  });102  it('should not append multiple stacks', () => {103    const Child = ({children}) => {104      fakeConsole.warn('warn\n    in Child (at fake.js:123)');105      fakeConsole.error('error', '\n    in Child (at fake.js:123)');106      return null;107    };108    act(() => ReactDOM.render(<Child />, document.createElement('div')));109    expect(mockWarn).toHaveBeenCalledTimes(1);110    expect(mockWarn.mock.calls[0]).toHaveLength(1);111    expect(mockWarn.mock.calls[0][0]).toBe(112      'warn\n    in Child (at fake.js:123)',113    );114    expect(mockError).toHaveBeenCalledTimes(1);115    expect(mockError.mock.calls[0]).toHaveLength(2);116    expect(mockError.mock.calls[0][0]).toBe('error');117    expect(mockError.mock.calls[0][1]).toBe('\n    in Child (at fake.js:123)');118  });119  it('should append component stacks to errors and warnings logged during render', () => {120    const Intermediate = ({children}) => children;121    const Parent = ({children}) => (122      <Intermediate>123        <Child />124      </Intermediate>125    );126    const Child = ({children}) => {127      fakeConsole.error('error');128      fakeConsole.log('log');129      fakeConsole.warn('warn');130      return null;131    };132    act(() => ReactDOM.render(<Parent />, document.createElement('div')));133    expect(mockLog).toHaveBeenCalledTimes(1);134    expect(mockLog.mock.calls[0]).toHaveLength(1);135    expect(mockLog.mock.calls[0][0]).toBe('log');136    expect(mockWarn).toHaveBeenCalledTimes(1);137    expect(mockWarn.mock.calls[0]).toHaveLength(2);138    expect(mockWarn.mock.calls[0][0]).toBe('warn');139    expect(normalizeCodeLocInfo(mockWarn.mock.calls[0][1])).toEqual(140      '\n    in Child (at **)\n    in Intermediate (at **)\n    in Parent (at **)',141    );142    expect(mockError).toHaveBeenCalledTimes(1);143    expect(mockError.mock.calls[0]).toHaveLength(2);144    expect(mockError.mock.calls[0][0]).toBe('error');145    expect(normalizeCodeLocInfo(mockError.mock.calls[0][1])).toBe(146      '\n    in Child (at **)\n    in Intermediate (at **)\n    in Parent (at **)',147    );148  });149  it('should append component stacks to errors and warnings logged from effects', () => {150    const Intermediate = ({children}) => children;151    const Parent = ({children}) => (152      <Intermediate>153        <Child />154      </Intermediate>155    );156    const Child = ({children}) => {157      React.useLayoutEffect(() => {158        fakeConsole.error('active error');159        fakeConsole.log('active log');160        fakeConsole.warn('active warn');161      });162      React.useEffect(() => {163        fakeConsole.error('passive error');164        fakeConsole.log('passive log');165        fakeConsole.warn('passive warn');166      });167      return null;168    };169    act(() => ReactDOM.render(<Parent />, document.createElement('div')));170    expect(mockLog).toHaveBeenCalledTimes(2);171    expect(mockLog.mock.calls[0]).toHaveLength(1);172    expect(mockLog.mock.calls[0][0]).toBe('active log');173    expect(mockLog.mock.calls[1]).toHaveLength(1);174    expect(mockLog.mock.calls[1][0]).toBe('passive log');175    expect(mockWarn).toHaveBeenCalledTimes(2);176    expect(mockWarn.mock.calls[0]).toHaveLength(2);177    expect(mockWarn.mock.calls[0][0]).toBe('active warn');178    expect(normalizeCodeLocInfo(mockWarn.mock.calls[0][1])).toEqual(179      '\n    in Child (at **)\n    in Intermediate (at **)\n    in Parent (at **)',180    );181    expect(mockWarn.mock.calls[1]).toHaveLength(2);182    expect(mockWarn.mock.calls[1][0]).toBe('passive warn');183    expect(normalizeCodeLocInfo(mockWarn.mock.calls[1][1])).toEqual(184      '\n    in Child (at **)\n    in Intermediate (at **)\n    in Parent (at **)',185    );186    expect(mockError).toHaveBeenCalledTimes(2);187    expect(mockError.mock.calls[0]).toHaveLength(2);188    expect(mockError.mock.calls[0][0]).toBe('active error');189    expect(normalizeCodeLocInfo(mockError.mock.calls[0][1])).toBe(190      '\n    in Child (at **)\n    in Intermediate (at **)\n    in Parent (at **)',191    );192    expect(mockError.mock.calls[1]).toHaveLength(2);193    expect(mockError.mock.calls[1][0]).toBe('passive error');194    expect(normalizeCodeLocInfo(mockError.mock.calls[1][1])).toBe(195      '\n    in Child (at **)\n    in Intermediate (at **)\n    in Parent (at **)',196    );197  });198  it('should append component stacks to errors and warnings logged from commit hooks', () => {199    const Intermediate = ({children}) => children;200    const Parent = ({children}) => (201      <Intermediate>202        <Child />203      </Intermediate>204    );205    class Child extends React.Component<any> {206      componentDidMount() {207        fakeConsole.error('didMount error');208        fakeConsole.log('didMount log');209        fakeConsole.warn('didMount warn');210      }211      componentDidUpdate() {212        fakeConsole.error('didUpdate error');213        fakeConsole.log('didUpdate log');214        fakeConsole.warn('didUpdate warn');215      }216      render() {217        return null;218      }219    }220    const container = document.createElement('div');221    act(() => ReactDOM.render(<Parent />, container));222    act(() => ReactDOM.render(<Parent />, container));223    expect(mockLog).toHaveBeenCalledTimes(2);224    expect(mockLog.mock.calls[0]).toHaveLength(1);225    expect(mockLog.mock.calls[0][0]).toBe('didMount log');226    expect(mockLog.mock.calls[1]).toHaveLength(1);227    expect(mockLog.mock.calls[1][0]).toBe('didUpdate log');228    expect(mockWarn).toHaveBeenCalledTimes(2);229    expect(mockWarn.mock.calls[0]).toHaveLength(2);230    expect(mockWarn.mock.calls[0][0]).toBe('didMount warn');231    expect(normalizeCodeLocInfo(mockWarn.mock.calls[0][1])).toEqual(232      '\n    in Child (at **)\n    in Intermediate (at **)\n    in Parent (at **)',233    );234    expect(mockWarn.mock.calls[1]).toHaveLength(2);235    expect(mockWarn.mock.calls[1][0]).toBe('didUpdate warn');236    expect(normalizeCodeLocInfo(mockWarn.mock.calls[1][1])).toEqual(237      '\n    in Child (at **)\n    in Intermediate (at **)\n    in Parent (at **)',238    );239    expect(mockError).toHaveBeenCalledTimes(2);240    expect(mockError.mock.calls[0]).toHaveLength(2);241    expect(mockError.mock.calls[0][0]).toBe('didMount error');242    expect(normalizeCodeLocInfo(mockError.mock.calls[0][1])).toBe(243      '\n    in Child (at **)\n    in Intermediate (at **)\n    in Parent (at **)',244    );245    expect(mockError.mock.calls[1]).toHaveLength(2);246    expect(mockError.mock.calls[1][0]).toBe('didUpdate error');247    expect(normalizeCodeLocInfo(mockError.mock.calls[1][1])).toBe(248      '\n    in Child (at **)\n    in Intermediate (at **)\n    in Parent (at **)',249    );250  });251  it('should append component stacks to errors and warnings logged from gDSFP', () => {252    const Intermediate = ({children}) => children;253    const Parent = ({children}) => (254      <Intermediate>255        <Child />256      </Intermediate>257    );258    class Child extends React.Component<any, any> {259      state = {};260      static getDerivedStateFromProps() {261        fakeConsole.error('error');262        fakeConsole.log('log');263        fakeConsole.warn('warn');264        return null;265      }266      render() {267        return null;268      }269    }270    act(() => ReactDOM.render(<Parent />, document.createElement('div')));271    expect(mockLog).toHaveBeenCalledTimes(1);272    expect(mockLog.mock.calls[0]).toHaveLength(1);273    expect(mockLog.mock.calls[0][0]).toBe('log');274    expect(mockWarn).toHaveBeenCalledTimes(1);275    expect(mockWarn.mock.calls[0]).toHaveLength(2);276    expect(mockWarn.mock.calls[0][0]).toBe('warn');277    expect(normalizeCodeLocInfo(mockWarn.mock.calls[0][1])).toEqual(278      '\n    in Child (at **)\n    in Intermediate (at **)\n    in Parent (at **)',279    );280    expect(mockError).toHaveBeenCalledTimes(1);281    expect(mockError.mock.calls[0]).toHaveLength(2);282    expect(mockError.mock.calls[0][0]).toBe('error');283    expect(normalizeCodeLocInfo(mockError.mock.calls[0][1])).toBe(284      '\n    in Child (at **)\n    in Intermediate (at **)\n    in Parent (at **)',285    );286  });287  it('should append stacks after being uninstalled and reinstalled', () => {288    const Child = ({children}) => {289      fakeConsole.warn('warn');290      fakeConsole.error('error');291      return null;292    };293    unpatchConsole();294    act(() => ReactDOM.render(<Child />, document.createElement('div')));295    expect(mockWarn).toHaveBeenCalledTimes(1);296    expect(mockWarn.mock.calls[0]).toHaveLength(1);297    expect(mockWarn.mock.calls[0][0]).toBe('warn');298    expect(mockError).toHaveBeenCalledTimes(1);299    expect(mockError.mock.calls[0]).toHaveLength(1);300    expect(mockError.mock.calls[0][0]).toBe('error');301    patchConsole({302      appendComponentStack: true,303      breakOnWarn: false,304    });305    act(() => ReactDOM.render(<Child />, document.createElement('div')));306    expect(mockWarn).toHaveBeenCalledTimes(2);307    expect(mockWarn.mock.calls[1]).toHaveLength(2);308    expect(mockWarn.mock.calls[1][0]).toBe('warn');309    expect(normalizeCodeLocInfo(mockWarn.mock.calls[1][1])).toEqual(310      '\n    in Child (at **)',311    );312    expect(mockError).toHaveBeenCalledTimes(2);313    expect(mockError.mock.calls[1]).toHaveLength(2);314    expect(mockError.mock.calls[1][0]).toBe('error');315    expect(normalizeCodeLocInfo(mockError.mock.calls[1][1])).toBe(316      '\n    in Child (at **)',317    );318  });319  it('should be resilient to prepareStackTrace', () => {320    Error.prepareStackTrace = function(error, callsites) {321      const stack = ['An error occurred:', error.message];322      for (let i = 0; i < callsites.length; i++) {323        const callsite = callsites[i];324        stack.push(325          '\t' + callsite.getFunctionName(),326          '\t\tat ' + callsite.getFileName(),327          '\t\ton line ' + callsite.getLineNumber(),328        );329      }330      return stack.join('\n');331    };332    const Intermediate = ({children}) => children;333    const Parent = ({children}) => (334      <Intermediate>335        <Child />336      </Intermediate>337    );338    const Child = ({children}) => {339      fakeConsole.error('error');340      fakeConsole.log('log');341      fakeConsole.warn('warn');342      return null;343    };344    act(() => ReactDOM.render(<Parent />, document.createElement('div')));345    expect(mockLog).toHaveBeenCalledTimes(1);346    expect(mockLog.mock.calls[0]).toHaveLength(1);347    expect(mockLog.mock.calls[0][0]).toBe('log');348    expect(mockWarn).toHaveBeenCalledTimes(1);349    expect(mockWarn.mock.calls[0]).toHaveLength(2);350    expect(mockWarn.mock.calls[0][0]).toBe('warn');351    expect(normalizeCodeLocInfo(mockWarn.mock.calls[0][1])).toEqual(352      '\n    in Child (at **)\n    in Intermediate (at **)\n    in Parent (at **)',353    );354    expect(mockError).toHaveBeenCalledTimes(1);355    expect(mockError.mock.calls[0]).toHaveLength(2);356    expect(mockError.mock.calls[0][0]).toBe('error');357    expect(normalizeCodeLocInfo(mockError.mock.calls[0][1])).toBe(358      '\n    in Child (at **)\n    in Intermediate (at **)\n    in Parent (at **)',359    );360  });...

Using AI Code Generation

1const root = require('./root');2root.mockError();3const root = require('./root');4root.mockError();5const root = require('./root');6root.mockError();7const root = require('./root');8root.mockError();9const root = require('./root');10root.mockError();11const root = require('./root');12root.mockError();13const root = require('./root');14root.mockError();15const root = require('./root');16root.mockError();

Using AI Code Generation

1var root = require('./');2root.mockError('test', new Error('test error'));3var root = require('./');4root.mockError('test', new Error('test error'));5var root = require('./');6root.mockError('test', new Error('test error'));7var root = require('./');8root.mockError('test', new Error('test error'));

Using AI Code Generation

1var root = require('root');2root.mockError('Test Error');3var module1 = require('module1');4module1.mockError('Test Error');5var module2 = require('module2');6module2.mockError('Test Error');7[MIT](LICENSE)

Using AI Code Generation

1const root = require('./index.js');2const mockError = root.mockError;3const sub = require('./sub.js');4const mockError = sub.mockError;5const sub2 = require('./sub2.js');6const mockError = sub2.mockError;

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