How to use MyConstructor method in sinon
Best JavaScript code snippet using sinon
object.js
Source:object.js 
1const car = {2 wheels: 4,3 motor: true4}5function Small() {6 this.doors = 27}8function Big() {9 this.doors = 410}11Small.prototype = car12Big.prototype = car13const smallCar = new Small()14console.log(`is smallCar coming from Small ? ${smallCar instanceof Small}`) 15console.log(`is smallCar coming from Big ? ${smallCar instanceof Big}`)16// function myConstructor() {17// this.a = 118// this.c = 219// this.callback = (a) => a + 220// };21// const a = new myConstructor();22// console.log(23// `is myConstructor equal to a.constructor ${a.constructor === myConstructor}`24// )// true25// myConstructor.prototype = {26// b: 3,27// c: 428// };29// console.log(30// `is myConstructor equal to a.constructor ${a.constructor === myConstructor}`31// )// false32// const b = new myConstructor();33// console.log(34// `is myConstructor equal to b.constructor ${b.constructor === myConstructor}`35// )// false36// // because .constructor send a ref to the prototype.constructor37// // now prototype is an object create from native Object constructor38// // https://developer.mozilla.org/fr/docs/Web/JavaScript/Reference/Objets_globaux/Object/constructor39// console.log(40// `is a instanceof myConstructor ${a instanceof myConstructor}`41// )// false42// console.log(43// `is b instanceof myConstructor ${b instanceof myConstructor}`44// )// true45// // because isInstanceOf check recursively all chain of b with the constructor.prototype46// // b.__proto__ === myContructor.prototype47// // a.__proto__ was equal befort myConstructor.prototype reassignment48// // https://www.ecma-international.org/ecma-262/6.0/#sec-instanceofoperator49// // https://www.ecma-international.org/ecma-262/6.0/#sec-ordinaryhasinstance:50// console.log(51// `is myConstructor.prototype equal to b.__proto__ ${myConstructor.prototype === Object.getPrototypeOf(b)}`52// )// true53// // Give the function implementation54// console.log(Object.getOwnPropertyDescriptors(a).callback.value.toString())55// // How it works with native code ?56// const e = new Error("hello")57// const { toString } = Object.getOwnPropertyDescriptors(Object.getPrototypeOf(e))58// console.log(Object.toString.call(toString.value))59// // Quand je croise un objet, je dois remonter toute sa chaîne de prototype60// // L'identité d'un objet est défini par "getOwnPropertyDescriptors"61// // Une fonction est un objet62// // L'héritage est défini par la comparaison des prototypes63// // Cette comparaison est basé sur le pointeur, inaccessible64// const o = {65// b: 366// }67// o.a = o68// console.log(typeof o.a)69// console.log({} === null)70// console.log(e.__proto__ === Error.prototype)71// const desc = Object.getOwnPropertyDescriptors(console)72// const sym = Object.getOwnPropertySymbols(console)73// console.log(desc[sym[0]])74// const arr = [1, 2, 4, 5]75// Object.keys(arr).forEach(k => {76// console.log(arr[k])...
document-register-fuzz.js
Source:document-register-fuzz.js
1function setupObjectHooks(hooks)2{3 // Wrapper for these object should be materialized before setting hooks.4 console.log;5 document.register;6 HTMLSpanElement.prototype;7 Object.defineProperty(Object.prototype, "prototype", {8 get: function() { return hooks.prototypeGet(); },9 set: function(value) { return hooks.prototypeSet(value); }10 });11 Object.defineProperty(Object.prototype, "constructor", {12 get: function() { return hooks.constructorGet(); },13 set: function(value) { return hooks.constructorSet(value); }14 });15 return hooks;16}17function exerciseDocumentRegister()18{19 register('x-a', {});20 register('x-b', {prototype: Object.create(HTMLElement.prototype)});21}22function register(name, options)23{24 var myConstructor = null;25 try {26 myConstructor = document.registerElement(name, options);27 } catch (e) { }28 try {29 if (!myConstructor) {30 debug("Constructor object isn't created.");31 return;32 }33 if (options.prototype !== undefined && myConstructor.prototype != options.prototype) {34 console.log("FAIL: bad prototype");35 return;36 }37 var element = new myConstructor();38 if (!element)39 return;40 if (element.constructor != myConstructor) {41 console.log("FAIL: bad constructor");42 return;43 }44 } catch (e) { console.log(e); }...
OOInheritPractice.js
Source:OOInheritPractice.js
1function MyConstructor() {2 this.name = 'MyConstructor';3 this.toString = function() {4 return this.name;5 }6}7MyConstructor.prototype.stuffItDoes = function(theStuff) {8 return this + ' is doing ' + theStuff;9}10var construc = new MyConstructor();11console.log(construc.stuffItDoes('stuff'));12console.log(construc.stuffItDoes('lambda expressions'));13console.log(construc.stuffItDoes('the dishes with its mind'));...
Using AI Code Generation
1var sinonChai = require("sinon-chai");2var chai = require("chai");3chai.use(sinonChai);4var sinon = require("sinon");5var expect = chai.expect;6describe("MyConstructor", function() {7 beforeEach(function() {8 this.myConstructor = new MyConstructor();9 this.sandbox = sinon.sandbox.create();10 });11 afterEach(function() {12 this.sandbox.restore();13 });14 it("should call the callback", function() {15 var callback = this.sandbox.spy();16 this.myConstructor.myMethod(callback);17 expect(callback).to.have.been.called;18 });19});
Using AI Code Generation
1var MyConstructor = sinon.spy();2var myObject = new MyConstructor();3var MyConstructor = sinon.spy();4var myObject = new MyConstructor();5var MyConstructor = sinon.spy();6var myObject = new MyConstructor();7var MyConstructor = sinon.spy();8var myObject = new MyConstructor();9var MyConstructor = sinon.spy();10var myObject = new MyConstructor();11var MyConstructor = sinon.spy();12var myObject = new MyConstructor();13var MyConstructor = sinon.spy();14var myObject = new MyConstructor();15var MyConstructor = sinon.spy();16var myObject = new MyConstructor();17var MyConstructor = sinon.spy();18var myObject = new MyConstructor();
Using AI Code Generation
1var sinon = require('sinon');2var MyConstructor = require('MyConstructor');3var myConstructor = new MyConstructor();4var stub = sinon.stub(myConstructor, 'MyConstructor');5var proxyquire = require('proxyquire');6var MyConstructor = require('MyConstructor');7var MyConstructorStub = sinon.stub().returns(MyConstructor);8var myConstructor = proxyquire('test.js', {9});
Using AI Code Generation
1var myConstructor = sinon.spy(MyConstructor);2var myInstance = new myConstructor();3function MyConstructor() {4 if ( !(this instanceof MyConstructor) ) {5 throw new Error("Constructor called without new");6 }7}8var myConstructor = sinon.spy(MyConstructor);9var myInstance = new myConstructor();10function MyConstructor() {11 if ( !(this instanceof MyConstructor) ) {12 throw new Error("Constructor called without new");13 }14}15var myConstructor = sinon.spy(MyConstructor);16var myInstance = new myConstructor();17function MyConstructor() {18 if ( !(this instanceof MyConstructor) ) {19 throw new Error("Constructor called without new");20 }21}22var myConstructor = sinon.spy(MyConstructor);23var myInstance = new myConstructor();24function MyConstructor() {25 if ( !(this instanceof MyConstructor) ) {26 throw new Error("Constructor called without new");27 }28}29var myConstructor = sinon.spy(MyConstructor);30var myInstance = new myConstructor();31function MyConstructor() {32 if ( !(this instanceof MyConstructor) ) {33 throw new Error("Constructor called without new");34 }35}
Using AI Code Generation
1var MyConstructor = sinon.spy();2var myObj = new MyConstructor();3myObj.method1();4If you're using sinon.js, you can use sinon.spy() to create a spy for your constructor. Here is an example of how to use it:5var MyConstructor = sinon.spy();6var myObj = new MyConstructor();7myObj.method1();8var MyConstructor = sinon.spy();9var myObj = new MyConstructor();10myObj.method1();11If you're using sinon.js, you can use sinon.spy() to create a spy for your constructor. Here is an example of how to use it:12var MyConstructor = sinon.spy();13var myObj = new MyConstructor();14myObj.method1();15var MyConstructor = sinon.spy();16var myObj = new MyConstructor();17myObj.method1();18If you're using sinon.js, you can use sinon.spy() to create a spy for your constructor. Here is an example of how to use it:19var MyConstructor = sinon.spy();20var myObj = new MyConstructor();21myObj.method1();22var MyConstructor = sinon.spy();23var myObj = new MyConstructor();24myObj.method1();25If you're using sinon.js, you can use sinon.spy() to create a spy for your constructor. Here is an example of how to use it
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.
LambdaTest Learning Hubs:
- JUnit Tutorial
- TestNG Tutorial
- Webdriver Tutorial
- WebDriverIO Tutorial
- Protractor Tutorial
- Selenium 4 Tutorial
- Jenkins Tutorial
- NUnit Tutorial
- Jest Tutorial
- Playwright Tutorial
- Cypress Tutorial
- PyTest Tutorial
YouTube
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Run sinon automation tests on LambdaTest cloud grid
Perform automation testing on 3000+ real desktop and mobile devices online.
Try LambdaTest Now !!
Get 100 minutes of automation test minutes FREE!!
Was this article helpful?
