Best JavaScript code snippet using sinon
stub.js
Source:stub.js  
...66            `Cannot stub non-existent property ${valueToString(property)}`67        );68    }69    var actualDescriptor = getPropertyDescriptor(object, property);70    assertValidPropertyDescriptor(actualDescriptor, property);71    var isObjectOrFunction =72        typeof object === "object" || typeof object === "function";73    var isStubbingEntireObject =74        typeof property === "undefined" && isObjectOrFunction;75    var isCreatingNewStub = !object && typeof property === "undefined";76    var isStubbingNonFuncProperty =77        isObjectOrFunction &&78        typeof property !== "undefined" &&79        (typeof actualDescriptor === "undefined" ||80            typeof actualDescriptor.value !== "function");81    if (isStubbingEntireObject) {82        return walkObject(stub, object);83    }84    if (isCreatingNewStub) {85        return createStub();86    }87    var func =88        typeof actualDescriptor.value === "function"89            ? actualDescriptor.value90            : null;91    var s = createStub(func);92    extend.nonEnum(s, {93        rootObj: object,94        propName: property,95        shadowsPropOnPrototype: !actualDescriptor.isOwn,96        restore: function restore() {97            if (actualDescriptor !== undefined && actualDescriptor.isOwn) {98                Object.defineProperty(object, property, actualDescriptor);99                return;100            }101            delete object[property];102        },103    });104    return isStubbingNonFuncProperty ? s : wrapMethod(object, property, s);105}106stub.createStubInstance = function (constructor, overrides) {107    if (typeof constructor !== "function") {108        throw new TypeError("The constructor should be a function.");109    }110    var stubbedObject = stub(Object.create(constructor.prototype));111    forEach(Object.keys(overrides || {}), function (propertyName) {112        if (propertyName in stubbedObject) {113            var value = overrides[propertyName];114            if (value && value.createStubInstance) {115                stubbedObject[propertyName] = value;116            } else {117                stubbedObject[propertyName].returns(value);118            }119        } else {120            throw new Error(121                `Cannot stub ${propertyName}. Property does not exist!`122            );123        }124    });125    return stubbedObject;126};127function assertValidPropertyDescriptor(descriptor, property) {128    if (!descriptor || !property) {129        return;130    }131    if (!descriptor.configurable && !descriptor.writable) {132        throw new TypeError(133            `Descriptor for property ${property} is non-configurable and non-writable`134        );135    }136    if ((descriptor.get || descriptor.set) && !descriptor.configurable) {137        throw new TypeError(138            `Descriptor for accessor property ${property} is non-configurable`139        );140    }141    if (isDataDescriptor(descriptor) && !descriptor.writable) {...Using AI Code Generation
1assertValidPropertyDescriptor(sinon.assert, "assertValidPropertyDescriptor");2assertValidPropertyDescriptor(sinon.assert, "assertValidPropertyDescriptor", true);3assertValidPropertyDescriptor(sinon.assert, "assertValidPropertyDescriptor", false);4assertValidPropertyDescriptor(sinon.assert, "assertValidPropertyDescriptor", { configurable: true });5assertValidPropertyDescriptor(sinon.assert, "assertValidPropertyDescriptor", { configurable: false });6assertValidPropertyDescriptor(sinon.assert, "assertValidPropertyDescriptor", { enumerable: true });7assertValidPropertyDescriptor(sinon.assert, "assertValidPropertyDescriptor", { enumerable: false });8assertValidPropertyDescriptor(sinon.assert, "assertValidPropertyDescriptor", { value: "foo" });9assertValidPropertyDescriptor(sinon.assert, "assertValidPropertyDescriptor", { writable: true });10assertValidPropertyDescriptor(sinon.assert, "assertValidPropertyDescriptor", { writable: false });11assertValidPropertyDescriptor(sinon.assert, "assertValidPropertyDescriptor", { get: function () { } });12assertValidPropertyDescriptor(sinon.assert, "assertValidPropertyDescriptor", { set: function () { } });13assertValidProperty(sinon.assert, "assertValidProperty");14assertValidProperty(sinon.assert, "assertValidProperty", true);15assertValidProperty(sinon.assert, "assertValidProperty", false);16assertValidProperty(sinon.assert, "assertValidProperty", "foo");17assertValidProperty(sinon.assert, "assertValidProperty", 1);18assertValidProperty(sinon.assert, "assertValidProperty", {});19assertValidPrototype(sinon.assert, "assertValidPrototype");20assertValidPrototype(sinon.assert, "assertValidPrototype", true);21assertValidPrototype(sinon.assert, "assertValidPrototype", false);22assertValidPrototype(sinon.assert, "assertValidPrototype", {});23assertValidPrototype(sinon.assert, "assertValidPrototype", Object.prototype);24assertValidProxy(sinon.assert, "assertValidProxy");25assertValidProxy(sinon.assert, "assertValidProxy", true);26assertValidProxy(sinon.assert, "assertValidProxy", false);27assertValidProxy(sinon.assert, "assertValidProxy", {});28assertValidProxy(sinon.assert, "assertValidProxy", Object.prototype);29assertValidRegExp(sinon.assertUsing AI Code Generation
1sinon.assertValidPropertyDescriptor = function (obj, prop) {2    var descriptor = Object.getOwnPropertyDescriptor(obj, prop);3    assert(descriptor);4    assert.isFunction(descriptor.get);5    assert.isFunction(descriptor.set);6    assert.isFalse(descriptor.enumerable);7    assert.isFalse(descriptor.configurable);8};9describe('sinon', function () {10    it('should have valid property descriptor', function () {11        var obj = {};12        Object.defineProperty(obj, 'prop', {13            get: function () {14                return 'value';15            },16            set: function () {17                return 'value';18            },19        });20        sinon.assertValidPropertyDescriptor(obj, 'prop');21    });22});23describe('sinon', function () {24    it('should have valid property descriptor', function () {25        var obj = {};26        Object.defineProperty(obj, 'prop', {27            get: function () {28                return 'value';29            },30            set: function () {31                return 'value';32            },33        });34        sinon.assertValidPropertyDescriptor(obj, 'prop');35    });36});37describe('sinon', function () {38    it('should have valid property descriptor', function () {39        var obj = {};40        Object.defineProperty(obj, 'prop', {41            get: function () {42                return 'value';43            },44            set: function () {45                return 'value';46            },47        });48        sinon.assertValidPropertyDescriptor(obj, 'prop');49    });50});51describe('sinon', function () {52    it('should have valid property descriptor', function () {53        var obj = {};54        Object.defineProperty(obj, 'prop', {55            get: function () {56                return 'value';57            },58            set: function () {59                return 'value';60            },61        });62        sinon.assertValidPropertyDescriptor(obj, 'prop');63    });64});65describe('sinon', function () {66    it('should have valid property descriptor', function () {67        var obj = {};68        Object.defineProperty(obj, 'prop', {69            get: function () {70                return 'value';Using AI Code Generation
1var assert = require('assert');2var sinon = require('sinon');3var myObject = {4  myMethod: function() {}5};6var descriptor = Object.getOwnPropertyDescriptor(myObject, 'myMethod');7sinon.assert.assertValidPropertyDescriptor(descriptor);8    at assertValidPropertyDescriptor (node_modules/sinon/lib/sinon/assert.js:91:29)9    at Object.assertValidPropertyDescriptor (node_modules/sinon/lib/sinon/assert.js:85:10)10    at Object.<anonymous> (test.js:9:22)11    at Module._compile (module.js:570:32)12    at Object.Module._extensions..js (module.js:579:10)13    at Module.load (module.js:487:32)14    at tryModuleLoad (module.js:446:12)15    at Function.Module._load (module.js:438:3)16    at Function.Module.runMain (module.js:604:10)17    at startup (bootstrap_node.js:158:16)18var assert = require('assert');19var sinon = require('sinon');20var myObject = {21  myMethod: function() {}22};23var descriptor = Object.getOwnPropertyDescriptor(myObject, 'myMethod');24var propertyDescriptor = {25};26sinon.assert.assertValidPropertyDescriptor(propertyDescriptor);Using AI Code Generation
1var sinon = require('sinon');2var assert = sinon.assert;3var object = {};4var descriptor = {5};6assert.assertValidPropertyDescriptor(object, 'test', descriptor);7var chai = require('chai');8var assert = chai.assert;9var object = {};10var descriptor = {11};12assert.assertValidPropertyDescriptor(object, 'test', descriptor);13I'm using the following code to import the libraries:14var chai = require('chai');15var sinon = require('sinon');16var sinonChai = require('sinon-chai');17chai.use(sinonChai);18I'm using the following code to import the libraries:19var chai = require('chai');20var sinon = require('sinon');21var sinonChai = require('sinon-chai');22chai.use(sinonChai);23I'm using the following code to import the libraries:24var chai = require('chai');25var sinon = require('sinon');26var sinonChai = require('sinon-chai');27chai.use(sinonChai);28I'm using the following code to import the libraries:29var chai = require('chai');30var sinon = require('sinon');31var sinonChai = require('sinon-chai');32chai.use(sinonChai);33I'm using the following code to import the libraries:34var chai = require('chai');Using AI Code Generation
1var assert = require('assert');2var sinon = require('sinon');3var obj = {4};5var spy = sinon.spy();6sinon.assert.assertValidPropertyDescriptor(obj, 'a', {7});8assert(spy.called);9assert(spy.calledOnce);10assert(spy.calledWith(obj, 'a', {11}));12var assert = require('assert');13var sinon = require('sinon');14var obj = {15};16var spy = sinon.spy();17sinon.assert.assertValidPropertyDescriptor(obj, 'a', {18});19assert(spy.called);20assert(spy.calledOnce);21assert(spy.calledWith(obj, 'a', {22}));Using AI Code Generation
1var sinon = require('sinon');2var assert = require('assert');3var obj = { a: 1 };4var descriptor = Object.getOwnPropertyDescriptor(obj, 'a');5sinon.assert.assertValidPropertyDescriptor(descriptor);6var obj = { a: 1 };7var descriptor = Object.getOwnPropertyDescriptor(obj, 'a');8descriptor.value = 2;9sinon.assert.assertValidPropertyDescriptor(descriptor);10var obj = { a: 1 };11var descriptor = Object.getOwnPropertyDescriptor(obj, 'a');12descriptor.value = 2;13descriptor.configurable = false;14sinon.assert.assertValidPropertyDescriptor(descriptor);15var obj = { a: 1 };16var descriptor = Object.getOwnPropertyDescriptor(obj, 'a');17descriptor.value = 2;18descriptor.configurable = false;19descriptor.writable = false;20sinon.assert.assertValidPropertyDescriptor(descriptor);21var obj = { a: 1 };22var descriptor = Object.getOwnPropertyDescriptor(obj, 'a');23descriptor.value = 2;24descriptor.configurable = false;25descriptor.writable = false;26descriptor.enumerable = false;27sinon.assert.assertValidPropertyDescriptor(descriptor);28var obj = { a: 1 };29var descriptor = Object.getOwnPropertyDescriptor(obj, 'a');30descriptor.value = 2;31descriptor.configurable = false;32descriptor.writable = false;33descriptor.enumerable = false;34descriptor.get = function () { return 1; };35sinon.assert.assertValidPropertyDescriptor(descriptor);Using AI Code Generation
1var sinon = require('sinon');2var assert = require('assert');3var myObj = {4  myFunc: function() {5    return 'foo';6  }7};8var descriptor = Object.getOwnPropertyDescriptor(myObj, 'myFunc');9var spy = sinon.spy();10Object.defineProperty(myObj, 'myFunc', {11});12assert(sinon.assertValidPropertyDescriptor(descriptor));13var sinon = require('sinon');14var assert = require('assert');15var myObj = {16  myFunc: function() {17    return 'foo';18  }19};20var descriptor = Object.getOwnPropertyDescriptor(myObj, 'myFunc');21var spy = sinon.spy();22Object.defineProperty(myObj, 'myFunc', {23});24assert(!sinon.assertValidPropertyDescriptor(descriptor));25sinon.assertValidPropertyDescriptor(Object.getOwnPropertyDescriptor(object, 'property'));Using AI Code Generation
1var assert = require('assert');2var sinon = require('sinon');3var test = require('./test.js');4var obj = {};5sinon.assert.expose(assert, {prefix: ''});6test(obj);7assertValidPropertyDescriptor(obj, "foo", {8});9module.exports = function(obj) {10  Object.defineProperty(obj, "foo", {11  });12};13sinon.assert.expose(assert, {prefix: ''});14sinon.assert.expose(assert, {prefix: ''});15sinon.assert.assertValidPropertyDescriptor(obj, "foo", {16});17sinon.assert.expose(assert, {prefix: ''});18assertValidPropertyDescriptor(obj, "foo", {19});Using AI Code Generation
1var sinon = require('sinon');2var obj = {3    foo: function(){4    }5}6sinon.assert.assertValidPropertyDescriptor(obj, 'foo');7var sinon = require('sinon');8var obj = {9    foo: function(){10    }11}12sinon.assert.assertValidPropertyDescriptor(obj, 'foo');13var sinon = require('sinon');14var obj = {15    foo: function(){16    }17}18sinon.assert.assertValidPropertyDescriptor(obj, 'foo');19var sinon = require('sinon');20var obj = {21    foo: function(){22    }23}24sinon.assert.assertValidPropertyDescriptor(obj, 'foo');25var sinon = require('sinon');26var obj = {27    foo: function(){28    }29}30sinon.assert.assertValidPropertyDescriptor(obj, 'foo');31var sinon = require('sinon');32var obj = {33    foo: function(){34    }35}36sinon.assert.assertValidPropertyDescriptor(obj, 'foo');37var sinon = require('sinon');38var obj = {39    foo: function(){40    }41}42sinon.assert.assertValidPropertyDescriptor(obj, 'foo');43var sinon = require('sinon');44var obj = {45    foo: function(){46    }47}48sinon.assert.assertValidPropertyDescriptor(obj, 'foo');49var sinon = require('sinon');50var obj = {51    foo: function(){52    }53}54sinon.assert.assertValidPropertyDescriptor(obj, 'foo');55var sinon = require('sinon');56var obj = {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.
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