Best JavaScript code snippet using sinon
sandbox-test.js
Source:sandbox-test.js  
...133            };134            Class.prototype.method = function() {135                return;136            };137            var stub = this.sandbox.createStubInstance(Class);138            stub.method.returns(3);139            assert.equals(3, stub.method());140        });141        it("should require a function", function() {142            var sandbox = this.sandbox;143            assert.exception(144                function() {145                    sandbox.createStubInstance("not a function");146                },147                {148                    name: "TypeError",149                    message: "The constructor should be a function."150                }151            );152        });153        it("resets all stub methods on reset()", function() {154            var Class = function() {155                return;156            };157            Class.prototype.method1 = function() {158                return;159            };160            Class.prototype.method2 = function() {161                return;162            };163            Class.prototype.method3 = function() {164                return;165            };166            var stub = this.sandbox.createStubInstance(Class);167            stub.method1.returns(1);168            stub.method2.returns(2);169            stub.method3.returns(3);170            assert.equals(3, stub.method3());171            this.sandbox.reset();172            assert.isUndefined(stub.method1());173            assert.isUndefined(stub.method2());174            assert.isUndefined(stub.method3());175        });176        it("doesn't stub fake methods", function() {177            var Class = function() {178                return;179            };180            Class.prototype.noop = noop;181            var stub = this.sandbox.createStubInstance(Class);182            assert.exception(function() {183                stub.method.returns(3);184            });185        });186        it("doesn't call the constructor", function() {187            var Class = function(a, b) {188                var c = a + b;189                throw c;190            };191            Class.prototype.method = function() {192                return;193            };194            var stub = this.sandbox.createStubInstance(Class);195            refute.exception(function() {196                stub.method(3);197            });198        });199        it("retains non function values", function() {200            var TYPE = "some-value";201            var Class = function() {202                return;203            };204            Class.prototype.noop = noop;205            Class.prototype.type = TYPE;206            var stub = this.sandbox.createStubInstance(Class);207            assert.equals(TYPE, stub.type);208        });209        it("has no side effects on the prototype", function() {210            var proto = {211                method: function() {212                    throw new Error("error");213                }214            };215            var Class = function() {216                return;217            };218            Class.prototype = proto;219            var stub = this.sandbox.createStubInstance(Class);220            refute.exception(stub.method);221            assert.exception(proto.method);222        });223        it("throws exception for non function params", function() {224            var types = [{}, 3, "hi!"];225            for (var i = 0; i < types.length; i++) {226                // yes, it's silly to create functions in a loop, it's also a test227                /* eslint-disable-next-line ie11/no-loop-func, no-loop-func */228                assert.exception(function() {229                    this.sandbox.createStubInstance(types[i]);230                });231            }232        });233        it("allows providing optional overrides", function() {234            var Class = function() {235                return;236            };237            Class.prototype.method = function() {238                return;239            };240            var stub = this.sandbox.createStubInstance(Class, {241                method: sinonStub().returns(3)242            });243            assert.equals(3, stub.method());244        });245        it("allows providing optional returned values", function() {246            var Class = function() {247                return;248            };249            Class.prototype.method = function() {250                return;251            };252            var stub = this.sandbox.createStubInstance(Class, {253                method: 3254            });255            assert.equals(3, stub.method());256        });257        it("allows providing null as a return value", function() {258            var Class = function() {259                return;260            };261            Class.prototype.method = function() {262                return;263            };264            var stub = this.sandbox.createStubInstance(Class, {265                method: null266            });267            assert.equals(null, stub.method());268        });269        it("throws an exception when trying to override non-existing property", function() {270            var Class = function() {271                return;272            };273            Class.prototype.method = function() {274                return;275            };276            var sandbox = this.sandbox;277            assert.exception(278                function() {...60sandbox-test.js
Source:60sandbox-test.js  
...136            };137            Class.prototype.method = function() {138                return;139            };140            var stub = this.sandbox.createStubInstance(Class);141            stub.method.returns(3);142            assert.equals(3, stub.method());143        });144        it("should require a function", function() {145            var sandbox = this.sandbox;146            assert.exception(147                function() {148                    sandbox.createStubInstance("not a function");149                },150                {151                    name: "TypeError",152                    message: "The constructor should be a function."153                }154            );155        });156        it("resets all stub methods on reset()", function() {157            var Class = function() {158                return;159            };160            Class.prototype.method1 = function() {161                return;162            };163            Class.prototype.method2 = function() {164                return;165            };166            Class.prototype.method3 = function() {167                return;168            };169            var stub = this.sandbox.createStubInstance(Class);170            stub.method1.returns(1);171            stub.method2.returns(2);172            stub.method3.returns(3);173            assert.equals(3, stub.method3());174            this.sandbox.reset();175            assert.equals(undefined, stub.method1());176            assert.equals(undefined, stub.method2());177            assert.equals(undefined, stub.method3());178        });179        it("doesn't stub fake methods", function() {180            var Class = function() {181                return;182            };183            var stub = this.sandbox.createStubInstance(Class);184            assert.exception(function() {185                stub.method.returns(3);186            });187        });188        it("doesn't call the constructor", function() {189            var Class = function(a, b) {190                var c = a + b;191                throw c;192            };193            Class.prototype.method = function() {194                return;195            };196            var stub = this.sandbox.createStubInstance(Class);197            refute.exception(function() {198                stub.method(3);199            });200        });201        it("retains non function values", function() {202            var TYPE = "some-value";203            var Class = function() {204                return;205            };206            Class.prototype.type = TYPE;207            var stub = this.sandbox.createStubInstance(Class);208            assert.equals(TYPE, stub.type);209        });210        it("has no side effects on the prototype", function() {211            var proto = {212                method: function() {213                    throw new Error("error");214                }215            };216            var Class = function() {217                return;218            };219            Class.prototype = proto;220            var stub = this.sandbox.createStubInstance(Class);221            refute.exception(stub.method);222            assert.exception(proto.method);223        });224        it("throws exception for non function params", function() {225            var types = [{}, 3, "hi!"];226            for (var i = 0; i < types.length; i++) {227                // yes, it's silly to create functions in a loop, it's also a test228                /* eslint-disable-next-line ie11/no-loop-func, no-loop-func */229                assert.exception(function() {230                    this.sandbox.createStubInstance(types[i]);231                });232            }233        });234    });235    describe(".stub", function() {236        beforeEach(function() {237            this.sandbox = createSandbox();238        });239        it("fails if stubbing property on null", function() {240            var sandbox = this.sandbox;241            assert.exception(242                function() {243                    sandbox.stub(null, "prop");244                },...Using AI Code Generation
1var sinon = require('sinon');2var assert = require('assert');3describe('Test', function() {4  before(function() {5    this.sandbox = sinon.sandbox.create();6  });7  afterEach(function() {8    this.sandbox.restore();9  });10  it('should use stub', function() {11    var stub = this.sandbox.createStubInstance(Object);12    stub.foo.returns(42);13    assert.equal(stub.foo(), 42);14  });15});16  0 passing (19ms)17      at Object.stub (node_modules/sinon/lib/sinon/stub.js:41:19)18      at Context.it (test.js:13:20)19      at callFn (node_modules/mocha/lib/runnable.js:295:21)20      at Test.Runnable.run (node_modules/mocha/lib/runnable.js:287:7)21      at Runner.runTest (node_modules/mocha/lib/runner.js:422:10)22      at next (node_modules/mocha/lib/runner.js:342:14)23      at next (node_modules/mocha/lib/runner.js:286:14)24      at Immediate._onImmediate (node_modules/mocha/lib/runner.js:321:5)25      at processImmediate [as _immediateCallback] (timers.js:383:17)26var sinon = require('sinon');27var assert = require('assert');28var myModule = require('myModule');29describe('Test', function() {30  before(function() {31    this.sandbox = sinon.sandbox.create();32  });33  afterEach(function() {34    this.sandbox.restore();35  });Using AI Code Generation
1var sinon = require('sinon');2var assert = require('chai').assert;3describe('Sinon Sandbox', function() {4  beforeEach(function() {5    this.sandbox = sinon.sandbox.create();6  });7  afterEach(function() {8    this.sandbox.restore();9  });10  it('should stub a method', function() {11    var stub = this.sandbox.stub();12    stub('foo');13    assert(stub.called);14  });15  it('should stub a method on an object', function() {16    var obj = {foo: function() {}};17    this.sandbox.stub(obj, 'foo');18    assert(this.sandbox.stub.called);19  });20  it('should stub a method on an object and return a value', function() {21    var obj = {foo: function() {}};22    this.sandbox.stub(obj, 'foo', 'bar');23    assert.equal(obj.foo(), 'bar');24  });25  it('should stub a method on an object and call a function', function() {26    var obj = {foo: function() {}};27    var stub = this.sandbox.stub(obj, 'foo', function() {28      return 'bar';29    });30    assert.equal(obj.foo(), 'bar');31    assert(stub.called);32  });33  it('should stub a method on an object and call a function with arguments', function() {34    var obj = {foo: function() {}};35    var stub = this.sandbox.stub(obj, 'foo', function(arg1, arg2) {36      return arg1 + arg2;37    });38    assert.equal(obj.foo(1, 2), 3);39    assert(stub.called);40  });41  it('should stub a method on an object and call a function with arguments and this', function() {42    var obj = {foo: function() {}};43    var stub = this.sandbox.stub(obj, 'foo', function(arg1, arg2) {44      return this.bar + arg1 + arg2;45    });46    assert.equal(obj.foo(1, 2), 6);47    assert(stub.called);48  });49  it('should stub a method on an object and call a function with arguments and this and return a value', function() {50    var obj = {bar: 3, foo: function() {}};51    var stub = this.sandbox.stub(obj, 'foo', function(arg1, arg2) {Using AI Code Generation
1var sinon = require('sinon');2var foo = {3    bar: function (callback) {4        setTimeout(function () {5            callback();6        }, 1000);7    }8};9var stub = sinon.stub(foo);10stub.bar.yields();11foo.bar(function () {12    console.log('callback called');13});14var sinon = require('sinon');15var foo = {16    bar: function (callback) {17        setTimeout(function () {18            callback();19        }, 1000);20    }21};22var stub = sinon.stub(foo);23stub.bar.yields();24foo.bar(function () {25    console.log('callback called');26});27var sinon = require('sinon');28var foo = {29    bar: function (callback) {30        setTimeout(function () {31            callback();32        }, 1000);33    }34};35var stub = sinon.stub(foo);36stub.bar.yields();37foo.bar(function () {38    console.log('callback called');39});40var sinon = require('sinon');41var foo = {42    bar: function (callback) {43        setTimeout(function () {44            callback();45        }, 1000);46    }47};48var stub = sinon.stub(foo);49stub.bar.yields();50foo.bar(function () {51    console.log('callback called');52});53var sinon = require('sinon');54var foo = {55    bar: function (callback) {56        setTimeout(function () {57            callback();58        }, 1000);59    }60};61var stub = sinon.stub(foo);62stub.bar.yields();63foo.bar(function () {64    console.log('callback called');65});66var sinon = require('sinon');67var foo = {68    bar: function (callback) {69        setTimeout(function () {70            callback();71        }, 1000);72    }73};74var stub = sinon.stub(foo);75stub.bar.yields();76foo.bar(function () {77    console.log('callback called');78});79var sinon = require('sinonUsing AI Code Generation
1var sandbox = sinon.sandbox.create();2var stub = sandbox.createStubInstance(Animal);3var stub = sinon.stub(Animal);4var sandbox = sinon.sandbox.create();5var stub = sandbox.createStubInstance(Animal);6var stub = sinon.stub(Animal);7var sandbox = sinon.sandbox.create();8var stub = sandbox.createStubInstance(Animal);9var stub = sinon.stub(Animal);10var sandbox = sinon.sandbox.create();11var stub = sandbox.createStubInstance(Animal);12var stub = sinon.stub(Animal);13var sandbox = sinon.sandbox.create();14var stub = sandbox.createStubInstance(Animal);15var stub = sinon.stub(Animal);16var sandbox = sinon.sandbox.create();17var stub = sandbox.createStubInstance(Animal);18var stub = sinon.stub(Animal);19var sandbox = sinon.sandbox.create();20var stub = sandbox.createStubInstance(Animal);21var stub = sinon.stub(Animal);22var sandbox = sinon.sandbox.create();23var stub = sandbox.createStubInstance(Animal);24var stub = sinon.stub(Animal);25var sandbox = sinon.sandbox.create();26var stub = sandbox.createStubInstance(Animal);27var stub = sinon.stub(Animal);28var sandbox = sinon.sandbox.create();Using AI Code Generation
1var sinon = require('sinon');2var myStub = this.sandbox.createStubInstance(MyClass);3var myStub = this.sandbox.createStubInstance(MyClass, {4  myMethod: function () {5  },6  myOtherMethod: function () {7  }8});9var sinon = require('sinon');10var myStub = sinon.createStubInstance(MyClass);11var myStub = sinon.createStubInstance(MyClass, {12  myMethod: function () {13  },14  myOtherMethod: function () {15  }16});17QUnit.test('test', function (assert) {18  assert.ok(myStub.myMethod.called);19  assert.ok(myStub.myOtherMethod.called);20});21var sinon = require('sinon');22var myStub = this.sandbox.createStubInstance(MyClass);23var myStub = this.sandbox.createStubInstance(MyClass, {24  myMethod: function () {25  },26  myOtherMethod: function () {27  }28});29var sinon = require('sinon');30var myStub = sinon.createStubInstance(MyClass);31var myStub = sinon.createStubInstance(MyClass, {32  myMethod: function () {33  },34  myOtherMethod: function () {35  }36});37QUnit.test('test', function (assert) {38  assert.ok(myStub.myMethod.called);39  assert.ok(myStub.myOtherMethod.called);40});41var sinon = require('sinon');42var myStub = this.sandbox.createStubInstance(MyClass);43var myStub = this.sandbox.createStubInstance(MyClass, {44  myMethod: function () {45  },46  myOtherMethod: function () {47  }48});49var sinon = require('sinon');50var myStub = sinon.createStubInstance(MyClass);51var myStub = sinon.createStubInstance(MyClass, {52  myMethod: function () {53  },54  myOtherMethod: function () {Using AI Code Generation
1var sinon = require('sinon');2var test = require('tape');3var testObj = require('./testObj.js');4test('Test', function(t) {5    var stub = sinon.sandbox.createStubInstance(testObj);6    stub.testFunc.returns('test');7    t.equal(stub.testFunc(), 'test');8    t.end();9});10module.exports = function() {11    this.testFunc = function() {12        return 'test';13    }14}15test('test', function (t) {16    var stub = sinon.stub();17    stub.returns(Promise.resolve('test'));18    var test = require('../test.js');19    test(stub).then(function (result) {20        t.equal(result, 'test');21        t.end();22    });23});24function testFunc (callback) {25    callback('test');26}27var stub = sinon.stub();28testFunc(stub);29t.equal(stub.calledOnce, true, 'callback was called once');30t.equal(stub.calledWith('test'), true, 'callback was called with "test"');31function testFunc (callback) {32    callback('test').then(function (result) {33        return result;34    });35}36var stub = sinon.stub();37testFunc(stub);38t.equal(stub.calledOnce, true, 'callback was called once');39t.equal(stub.calledWith('test'), true, 'callback was called with "test"');40function testFunc () {41    return Promise.resolve('test');42}43testFunc().then(function (result) {44    t.equal(result, 'test');45    t.end();46});Using AI Code Generation
1var sinon = require('sinon');2var moduleToBeTested = require('moduleToBeTested');3describe('moduleToBeTested', function () {4    beforeEach(function () {5        this.sandbox = sinon.sandbox.create();6    });7    afterEach(function () {8        this.sandbox.restore();9    });10    it('should call the method of the passed object', function () {11        var stub = this.sandbox.createStubInstance(moduleToBeTested);12        moduleToBeTested.methodToBeTested(stub);13        sinon.assert.calledOnce(stub.methodToBeStubbed);14    });15});Using AI Code Generation
1var sinon = require('sinon');2var assert = require('assert');3var MyClass = function() {4  this.method = function() {5    return 1;6  };7};8var myObj = new MyClass();9var stub = sinon.createStubInstance(MyClass);10assert.equal(stub.method(), 1);11var sinon = require('sinon');12var assert = require('assert');13var MyClass = function() {14  this.method = function() {15    return 1;16  };17};18var myObj = new MyClass();19var stub = sinon.createStubInstance(MyClass);20assert.equal(stub.method(), 1);21var sinon = require('sinon');22var assert = require('assert');23var MyClass = function() {24  this.method = function() {25    return 1;26  };27};28var myObj = new MyClass();29var stub = sinon.createStubInstance(MyClass);30assert.equal(stub.method(), 1);31var sinon = require('sinon');32var assert = require('assert');33var MyClass = function() {34  this.method = function() {35    return 1;36  };37};38var myObj = new MyClass();39var stub = sinon.createStubInstance(MyClass);40assert.equal(stub.method(), 1);41var sinon = require('sinon');42var assert = require('assert');43var MyClass = function() {44  this.method = function() {45    return 1;46  };47};48var myObj = new MyClass();49var stub = sinon.createStubInstance(MyClass);50assert.equal(stub.method(), 1);51var sinon = require('sinon');52var assert = require('assert');53var MyClass = function() {54  this.method = function() {55    return 1;56  };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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