Best JavaScript code snippet using sinon
stub.js
Source: stub.js
...55 if (isEsModule(object)) {56 throw new TypeError("ES Modules cannot be stubbed");57 }58 throwOnFalsyObject.apply(null, arguments);59 if (isNonExistentProperty(object, property)) {60 throw new TypeError("Cannot stub non-existent property " + valueToString(property));61 }62 var actualDescriptor = getPropertyDescriptor(object, property);63 var isObjectOrFunction = typeof object === "object" || typeof object === "function";64 var isStubbingEntireObject = typeof property === "undefined" && isObjectOrFunction;65 var isCreatingNewStub = !object && typeof property === "undefined";66 var isStubbingNonFuncProperty =67 isObjectOrFunction &&68 typeof property !== "undefined" &&69 (typeof actualDescriptor === "undefined" || typeof actualDescriptor.value !== "function");70 if (isStubbingEntireObject) {71 return walkObject(stub, object);72 }73 if (isCreatingNewStub) {...
is-non-existent-property.js
Source: is-non-existent-property.js
...3 * @param {*} object4 * @param {String} property5 * @returns whether a prop exists in the prototype chain6 */7function isNonExistentProperty(object, property) {8 return object && typeof property !== "undefined" && !(property in object);9}...
Using AI Code Generation
1var chai = require('chai');2var sinon = require('sinon');3var sinonChai = require('sinon-chai');4chai.use(sinonChai);5chai.should();6var obj = {7 method: function () {8 return 'test';9 }10};11describe('sinon-chai', function () {12 it('should work', function () {13 var spy = sinon.spy(obj, 'method');14 obj.method();15 spy.should.have.been.calledOnce;16 spy.should.have.been.calledWith();17 spy.should.have.been.calledOn(obj);18 spy.should.have.returned('test');19 spy.should.have.been.calledBefore(sinon.stub());20 spy.should.have.been.calledAfter(sinon.stub());21 spy.should.have.been.calledImmediatelyBefore(sinon.stub());22 spy.should.have.been.calledImmediatelyAfter(sinon.stub());23 spy.should.have.been.calledWithNew();24 spy.should.have.been.calledWithExactly();25 spy.should.have.been.calledWithMatch();26 spy.should.have.been.calledWithExactlyMatch();27 spy.should.have.been.calledWithExactlyMatch();28 spy.should.have.been.calledOnceWithExactly();29 spy.should.have.been.calledOnceWithMatch();30 spy.should.have.been.calledOnceWithExactlyMatch();31 spy.should.have.been.calledTwice();32 spy.should.have.been.calledThrice();33 spy.should.have.been.calledOn(sinon.stub());
Using AI Code Generation
1var obj = {foo: 'bar'};2assert.isNonExistentProperty(obj, 'foo');3assert.isNonExistentProperty(obj, 'bar');4assert.isNonExistentProperty(obj, 'baz');5var obj = {foo: 'bar'};6assert.isNonExistentProperty(obj, 'foo');7assert.isNonExistentProperty(obj, 'bar');8assert.isNonExistentProperty(obj, 'baz');9var obj = {foo: 'bar'};10assert.isNonExistentProperty(obj, 'foo');11assert.isNonExistentProperty(obj, 'bar');12assert.isNonExistentProperty(obj, 'baz');13var obj = {foo: 'bar'};14assert.isNonExistentProperty(obj, 'foo');15assert.isNonExistentProperty(obj, 'bar');16assert.isNonExistentProperty(obj, 'baz');17var obj = {foo: 'bar'};18assert.isNonExistentProperty(obj, 'foo');19assert.isNonExistentProperty(obj, 'bar');20assert.isNonExistentProperty(obj, 'baz');21var obj = {foo: 'bar'};22assert.isNonExistentProperty(obj, 'foo');23assert.isNonExistentProperty(obj, 'bar');24assert.isNonExistentProperty(obj, 'baz');25var obj = {foo: 'bar'};26assert.isNonExistentProperty(obj, 'foo');27assert.isNonExistentProperty(obj, 'bar');28assert.isNonExistentProperty(obj, 'baz');29var obj = {foo: 'bar'};30assert.isNonExistentProperty(obj, 'foo');31assert.isNonExistentProperty(obj, 'bar');32assert.isNonExistentProperty(obj, 'baz');
Using AI Code Generation
1var sinon = require('sinon');2var obj = {3 method: function() {}4};5sinon.stub(obj, "method");6delete stub.isSinonProxy;7function stub(object, property, func) {8 var wrapper = function () {9 return wrapper.invoke(func, this, arguments);10 };11 if (typeof property !== "undefined" && typeof object !== "undefined") {12 var method = object[property];13 wrapper.displayName = property;14 wrapper.toString = function toString() {15 return method.toString();16 };17 wrapper.restore = function restore() {18 object[property] = method;19 };20 wrapper.invoke = function invoke(func, thisValue, args) {21 return (func || method).apply(thisValue, args);22 };23 wrapper.property = property;24 wrapper.object = object;25 object[property] = wrapper;26 } else {27 wrapper.restore = function restore() {28 throw new Error("Cannot restore unstubbed function");29 };30 wrapper.invoke = function invoke(func, thisValue, args) {31 return (func || function () {}).apply(thisValue, args);32 };33 }34 delete wrapper.isSinonProxy;35 return wrapper;36}37function stub(object, property, func) {38 var wrapper = function () {39 return wrapper.invoke(func, this, arguments);40 };41 if (typeof property !== "undefined" && typeof object !== "undefined") {42 var method = object[property];43 wrapper.displayName = property;44 wrapper.toString = function toString() {45 return method.toString();46 };47 wrapper.restore = function restore() {
Using AI Code Generation
1var sinon = require('sinon');2var assert = require('assert');3var obj = { foo: 'bar' };4var spy = sinon.spy(obj, 'foo');5assert.ok(spy.isSinonProxy);6assert.ok(spy.isNonExistentProperty);7spy.restore();8assert.ok(!spy.isSinonProxy);9assert.ok(!spy.isNonExistentProperty);
Using AI Code Generation
1var sinon = require('sinon');2var obj = { foo: 'bar' };3var spy = sinon.spy();4obj.baz = spy;5obj.baz();6console.log(spy.always
Using AI Code Generation
1var sinon = require('sinon');2var obj = {3 method: function() {}4};5sinon.stub(obj, "method").returns(42);6sinon.stub(obj, "method").returns(43);7sinon.stub(obj, "method").returns(44);8var stub = sinon.stub(obj, "method");9stub.returns(42);10stub.returns(43);11stub.returns(44);12var sinon = require('sinon');13var obj = {14 method: function() {}15};16sinon.stub(obj, "method").returns(42);17sinon.stub(obj, "method").returns(43);18sinon.stub(obj, "method").returns(44);19var stub = sinon.stub(obj, "method");20stub.returns(42);21stub.returns(43);22stub.returns(44);23var obj = {24 method: function() {}25};26sinon.stub(obj, "method").returns(42);27sinon.stub(obj, "method").returns(43);28sinon.stub(obj, "method").returns(44);29var stub = sinon.stub(obj, "method");30stub.returns(42);31stub.returns(43);32stub.returns(44);33var obj = {34 method: function() {}35};36sinon.stub(obj, "method").returns(42);37sinon.stub(obj, "method").returns(43);38sinon.stub(obj, "method").returns(44);39var stub = sinon.stub(obj, "method");40stub.returns(42);41stub.returns(43);42stub.returns(44);
Check out the latest blogs from LambdaTest on this topic:
In 2007, Steve Jobs launched the first iPhone, which revolutionized the world. But because of that, many businesses dealt with the problem of changing the layout of websites from desktop to mobile by delivering completely different mobile-compatible websites under the subdomain of ‘m’ (e.g., https://m.facebook.com). And we were all trying to figure out how to work in this new world of contending with mobile and desktop screen sizes.
Traditional software testers must step up if they want to remain relevant in the Agile environment. Agile will most probably continue to be the leading form of the software development process in the coming years.
Howdy testers! June has ended, and it’s time to give you a refresher on everything that happened at LambdaTest over the last month. We are thrilled to share that we are live with Cypress testing and that our very own LT Browser is free for all LambdaTest users. That’s not all, folks! We have also added a whole new range of browsers, devices & features to make testing more effortless than ever.
The QA testing career includes following an often long, winding road filled with fun, chaos, challenges, and complexity. Financially, the spectrum is broad and influenced by location, company type, company size, and the QA tester’s experience level. QA testing is a profitable, enjoyable, and thriving career choice.
As a developer, checking the cross browser compatibility of your CSS properties is of utmost importance when building your website. I have often found myself excited to use a CSS feature only to discover that it’s still not supported on all browsers. Even if it is supported, the feature might be experimental and not work consistently across all browsers. Ask any front-end developer about using a CSS feature whose support is still in the experimental phase in most prominent web browsers. ????
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.
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Get 100 minutes of automation test minutes FREE!!