KaneAI - World’s First E2E Software Testing Agent.Signup for Private Beta Join TestMu Conference

How to use newFn method in rewire

Best JavaScript code snippet using rewire

simple-mock.js

Source:simple-mock.js

1/* global define */2(function (global, module) { // Browser compatibility3  var simple = module.exports4  var mocks = []5  var totalCalls = 06  /**7   * Restore the current simple and create a new one8   *9   * @param {Object} [obj]10   * @param {String} [key]11   * @api public12   */13  simple.restore = function (obj, key) {14    if (obj && key) {15      mocks.some(function (mock, i) {16        if (mock.obj !== obj || mock.key !== key) return17        mock.restore()18        mocks.splice(i, 1)19        return true20      })21      return22    }23    mocks.forEach(_restoreMock)24    mocks = []25  }26  /**27   * Create a mocked value on an object28   *29   * @param {Object} obj30   * @param {String} key31   * @param {Function|Value} mockValue32   * @return {Function} mock33   * @api public34   */35  simple.mock = function (obj, key, mockValue) {36    if (!arguments.length) {37      return simple.spyOrStub()38    } else if (arguments.length === 1) {39      return simple.spyOrStub(obj)40    } else if (isFunction(mockValue)) {41      mockValue = simple.spyOrStub(mockValue)42    } else if (arguments.length === 2) {43      mockValue = simple.spyOrStub(obj, key)44    }45    var mock = {46      obj: obj,47      key: key,48      mockValue: mockValue,49      oldValue: obj[key],50      oldValueHasKey: (key in obj)51    }52    mock.restore = _restoreMock.bind(null, mock)53    mocks.unshift(mock)54    obj[key] = mockValue55    return mockValue56  }57  /**58   * Create a stub function59   *60   * @param {Function|Object} wrappedFn61   * @param {String} [key]62   * @return {Function} spy63   * @api public64   */65  simple.spyOrStub = simple.stub = simple.spy = function (wrappedFn, key) {66    if (arguments.length === 2) {67      wrappedFn = wrappedFn[key]68    }69    var originalFn = wrappedFn70    var stubFn = function () {71      var action = (newFn.loop) ? newFn.actions[(newFn.callCount - 1) % newFn.actions.length] : newFn.actions.shift()72      if (!action) return73      if (action.throwError) throw action.throwError74      if ('returnValue' in action) return action.returnValue75      if ('fn' in action) return action.fn.apply(action.ctx || this, arguments)76      var cb = ('cbArgIndex' in action) ? arguments[action.cbArgIndex] : arguments[arguments.length - 1]77      if (action.cbArgs) return cb.apply(action.ctx || null, action.cbArgs)78    }79    var newFn = function () {80      var call = {81        k: totalCalls++, // Keep count of calls to record the absolute order of calls82        args: Array.prototype.slice.call(arguments, 0),83        arg: arguments[0],84        context: this85      }86      newFn.calls.push(call)87      newFn.firstCall = newFn.firstCall || call88      newFn.lastCall = call89      newFn.callCount++90      newFn.called = true91      try {92        call.returned = (wrappedFn || _noop).apply(this, arguments)93      } catch(e) {94        call.threw = e95        throw e96      }97      return call.returned98    }99    // Spy100    newFn.reset = function () {101      newFn.calls = []102      newFn.lastCall = { args: [] } // For dot-safety103      newFn.callCount = 0104      newFn.called = false105    }106    newFn.reset()107    // Stub108    newFn.actions = []109    newFn.loop = true110    newFn.callbackWith = newFn.callback = function () {111      wrappedFn = stubFn112      newFn.actions.push({ cbArgs: arguments })113      return newFn // Chainable114    }115    newFn.callbackArgWith = newFn.callbackAtIndex = function () {116      wrappedFn = stubFn117      newFn.actions.push({118        cbArgs: Array.prototype.slice.call(arguments, 1),119        cbArgIndex: arguments[0]120      })121      return newFn // Chainable122    }123    newFn.inThisContext = function (obj) {124      var action = newFn.actions[newFn.actions.length - 1]125      action.ctx = obj126      return newFn // Chainable127    }128    newFn.withArgs = function () {129      var action = newFn.actions[newFn.actions.length - 1]130      action.cbArgs = arguments131      return newFn // Chainable132    }133    newFn.returnWith = function (returnValue) {134      wrappedFn = stubFn135      newFn.actions.push({ returnValue: returnValue })136      return newFn // Chainable137    }138    newFn.throwWith = function (err) {139      wrappedFn = stubFn140      newFn.actions.push({ throwError: err })141      return newFn // Chainable142    }143    newFn.resolveWith = function (value) {144      if (simple.Promise.when) return newFn.callFn(function createResolvedPromise () { return simple.Promise.when(value) })145      return newFn.callFn(function createResolvedPromise () { return simple.Promise.resolve(value) })146    }147    newFn.rejectWith = function (value) {148      return newFn.callFn(function createRejectedPromise () { return simple.Promise.reject(value) })149    }150    newFn.callFn = function (fn) {151      wrappedFn = stubFn152      newFn.actions.push({ fn: fn })153      return newFn // Chainable154    }155    newFn.withActions = function (actions) {156      wrappedFn = stubFn157      if (actions && actions.length >= 0) {158        Array.prototype.push.apply(newFn.actions, actions)159      }160      return newFn // Chainable161    }162    newFn.callOriginal = newFn.callOriginalFn = function () {163      wrappedFn = stubFn164      newFn.actions.push({ fn: originalFn })165      return newFn // Chainable166    }167    newFn.withLoop = function () {168      newFn.loop = true169      return newFn // Chainable170    }171    newFn.noLoop = function () {172      newFn.loop = false173      return newFn // Chainable174    }175    return newFn176  }177  function _restoreMock (mock) {178    if (!mock.oldValueHasKey) {179      delete mock.obj[mock.key]180      return181    }182    mock.obj[mock.key] = mock.oldValue183  }184  function _noop () {}185  /**186   * Return whether the passed variable is a function187   *188   * @param {Mixed} value189   * @return {Boolean}190   * @api private191   */192  function isFunction (value) {193    return Object.prototype.toString.call(value) === funcClass194  }195  var funcClass = '[object Function]'196  // Browser compatibility197  if (typeof define === 'function' && define.amd) {198    define(function () {199      return simple200    })201  } else if (typeof window !== 'undefined') {202    window.simple = simple203  }204  // Native Promise support205  if (typeof Promise !== 'undefined') simple.Promise = Promise...

index.js

Source:index.js

...18    const fn = function () {19        return this20    }21    const newFn = fn.bind2({name: 'vino'})22    console.assert(newFn().name === 'vino')23}24function test3(message) {25    console.log(message)26    Function.prototype.bind2 = bind27    const fn = function (p1, p2) {28        return [this, p1, p2]29    }30    const newFn = fn.bind2({name: 'vino'}, 8, 24)31    console.assert(newFn()[0].name === 'vino')32    console.assert(newFn()[1] === 8)33    console.assert(newFn()[2] === 24)34}35function test4(message) {36    console.log(message)37    Function.prototype.bind2 = bind38    const fn = function (p1, p2) {39        return [this, p1, p2]40    }41    const newFn = fn.bind2({name: 'vino'})42    console.assert(newFn(8, 24)[0].name === 'vino')43    console.assert(newFn(8, 24)[1] === 8)44    console.assert(newFn(8, 24)[2] === 24)45}46function test5(message) {47    console.log(message)48    Function.prototype.bind2 = bind49    const fn = function (p1, p2) {50        return [this, p1, p2]51    }52    const newFn = fn.bind2({name: 'vino'}, 8)53    console.assert(newFn(24)[0].name === 'vino', 'this')54    console.assert(newFn(24)[1] === 8, 'p1')55    console.assert(newFn(24)[2] === 24, 'p2')56}57function test6(message) {58    console.log(message)59    Function.prototype.bind2 = bind60    const fn = function (p1, p2) {61        this.p1 = p162        this.p2 = p263    }64    const newFn = fn.bind2(undefined, 8, 24)65    const obj = new newFn()66    console.assert(obj.p1 === 8)67    console.assert(obj.p2 === 24)68}69function test7(message) {70    console.log(message)71    Function.prototype.bind2 = bind72    const fn = function (p1, p2) {73        this.p1 = p174        this.p2 = p275    }76    fn.prototype.sayHi = function () {77        console.log('hi')78    }79    const newFn = fn.bind2(undefined, 8, 24)80    const obj = new newFn()81    console.assert(obj.p1 === 8)82    console.assert(obj.p2 === 24)83    console.assert(typeof obj.sayHi === 'function')84}85function test8(message) {86    console.log(message)87    Function.prototype.bind2 = bind88    const fn = function (p1, p2) {89        this.p1 = p190        this.p2 = p291    }92    const newFn = fn.bind2({name: 'vino'}, 8, 24)93    const obj = new newFn()94    console.assert(obj.name === undefined)95    console.assert(obj.p1 === 8)96    console.assert(obj.p2 === 24)...

Using AI Code Generation

1const newFn = rewire('./app.js').__get__("newFn");2describe("newFn", function() {3  it("should be a function", function() {4    assert.strictEqual(typeof newFn, "function");5  });6  it("should return a string", function() {7    assert.strictEqual(typeof newFn(), "string");8  });9  it("should return 'newFn'", function() {10    assert.strictEqual(newFn(), "newFn");11  });12});13if (typeof module !== "undefined") {14  module.exports = { newFn };15}

Using AI Code Generation

1var rewire = require('rewire');2var module = rewire('./module');3var newFn = module.__get__('newFn');4var result = newFn(2, 3);5var newFn = function (a, b) {6    return a + b;7};8module.exports = {9};

Using AI Code Generation

1const rewire = require("rewire");2const rewired = rewire("./index.js");3const newFn = rewired.__get__("newFn");4describe("newFn", () => {5  test("should return the sum of two numbers", () => {6    expect(newFn(1, 2)).toBe(3);7  });8});9module.exports = {10  fn: function (a, b) {11    return a + b;12  },13  newFn: function (a, b) {14    return a + b;15  },16};17module.exports = {18  fn: function (a, b) {19    return a + b;20  },21  newFn: function (a, b) {22    return a + b;23  },24};25module.exports = {26  fn: function (a, b) {27    return a + b;28  },29  newFn: function (a, b) {30    return a + b;31  },32};33module.exports = {34  fn: function (a, b) {35    return a + b;36  },37  newFn: function (a, b) {38    return a + b;39  },40};41module.exports = {42  fn: function (a, b) {43    return a + b;44  },45  newFn: function (a, b) {46    return a + b;47  },48};49module.exports = {50  fn: function (a, b) {51    return a + b;52  },53  newFn: function (a, b) {54    return a + b;55  },56};57module.exports = {58  fn: function (a, b) {59    return a + b;60  },61  newFn: function (a, b) {62    return a + b;63  },64};65module.exports = {66  fn: function (a, b) {67    return a + b;68  },69  newFn: function (a, b) {70    return a + b;71  },72};73module.exports = {74  fn: function (a, b) {75    return a + b;76  },77  newFn: function (a, b

Using AI Code Generation

1var rewire = require('rewire');2var newFn = rewire('./fn.js');3newFn.__set__('fn', function() {4    return 'newFn';5});6var rewire = require('rewire');7var newFn = rewire('./fn.js');8newFn.__set__('fn', function() {9    return 'newFn';10});

Using AI Code Generation

1const myModule = rewire('./myModule.js');2myModule.__set__('newFn', function() {3  return 'bar';4});5const result = myModule('foo');6module.exports = function(arg) {7  return newFn(arg);8};9const myModule = rewire('./myModule.js');10myModule.__set__('newFn', function() {11  return 'bar';12});13const result = myModule('foo');14module.exports = function(arg) {15  return newFn(arg);16};17const myModule = rewire('./myModule.js');18myModule.__set__('newFn', function() {19  return 'bar';20});21const result = myModule('foo');22module.exports = function(arg) {23  return newFn(arg);24};25const myModule = rewire('./myModule.js');26myModule.__set__('newFn', function() {27  return 'bar';28});29const result = myModule('foo');30module.exports = function(arg) {31  return newFn(arg);32};33const myModule = rewire('./myModule.js');34myModule.__set__('newFn', function() {35  return 'bar';36});37const result = myModule('foo');38module.exports = function(arg) {39  return newFn(arg);40};41const myModule = rewire('./myModule.js');42myModule.__set__('newFn', function() {43  return 'bar';44});45const result = myModule('foo');46module.exports = function(arg) {47  return newFn(arg);48};49const myModule = rewire('./myModule.js');50myModule.__set__('newFn',

Using AI Code Generation

1const rewire = require("rewire");2const test = rewire("./app.js");3test.__set__("newFn", () => 42);4test.__get__("newFn")();5const assert = require("assert");6const test = require("./app.js");7describe("Test", () => {8  it("should return 42", () => {9    assert.equal(test(), 42);10  });11});12const assert = require("assert");13const expect = require("chai").expect;14const test = require("./app.js");15describe("Test", () => {16  it("should return 42", () => {17    assert.equal(test(), 42);18  });19  it("should return 42", () => {20    expect(test()).to.equal(42);21  });22});23const assert = require("assert");24const sinon = require("sinon");25const test = require("./app.js");26describe("Test", () => {27  it("should return 42", () => {28    assert.equal(test(), 42);29  });30  it("should return 42", () => {31    const stub = sinon.stub(test, "newFn").returns(42);32    assert.equal(test(), 42);33    stub.restore();34  });35});36const assert = require("assert");37const test = require("./app.js");38describe("Test", () => {39  it("should return 42", () => {40    assert.equal(test(), 42);41  });42});43{44  "scripts": {

Using AI Code Generation

1const rewire = require('rewire');2const test = rewire('./test.js');3test.__set__('newFn', () => { return 'New Function'; });4test.__get__('newFn')();5const sinon = require('sinon');6const test = require('./test.js');7const spy = sinon.spy(test, 'newFn');8test.newFn();9const chai = require('chai');10const test = require('./test.js');11chai.expect(test.newFn()).to.equal('New Function');12const mocha = require('mocha');13const test = require('./test.js');14mocha.describe('newFn', () => {15  mocha.it('should return New Function', () => {16    mocha.expect(test.newFn()).to.equal('New Function');17  });18});19const jest = require('jest');20const test = require('./test.js');21jest.describe('newFn', () => {22  jest.it('should return New Function', () => {23    jest.expect(test.newFn()).to.equal('New Function');24  });25});

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.