Best JavaScript code snippet using sinon
call_test.js
Source:call_test.js  
...494                var thisObj = { name1: "value1", name2: "value2" };495                this.args.push({496                    success: callback497                });498                this.call.yieldToOn("success", thisObj);499                assert(callback.calledOnce);500                assert.equals(callback.args[0].length, 0);501                assert(callback.calledOn(thisObj));502            },503            "throws understandable error if no callback is passed": function () {504                var call = this.call;505                var thisObj = { name1: "value1", name2: "value2" };506                try {507                    call.yieldToOn("success", thisObj);508                    throw new Error();509                } catch (e) {510                    assert.equals(e.message, "spy cannot yield to 'success' since no callback was passed.");511                }512            },513            "includes stub name and actual arguments in error": function () {514                this.proxy.displayName = "somethingAwesome";515                this.args.push(23, 42);516                var call = this.call;517                var thisObj = { name1: "value1", name2: "value2" };518                try {519                    call.yieldToOn("success", thisObj);520                    throw new Error();521                } catch (e) {522                    assert.equals(e.message, "somethingAwesome cannot yield to 'success' since no callback was passed. " +523                                  "Received [23, 42]");524                }525            },526            "invokes property on last argument as callback": function () {527                var spy = sinon.spy();528                var thisObj = { name1: "value1", name2: "value2" };529                this.args.push(24, {}, { success: spy });530                this.call.yieldToOn("success", thisObj);531                assert(spy.calledOnce);532                assert(spy.calledOn(thisObj));533                assert.equals(spy.args[0].length, 0);534            },535            "invokes first of two possible callbacks": function () {536                var spy = sinon.spy();537                var spy2 = sinon.spy();538                var thisObj = { name1: "value1", name2: "value2" };539                this.args.push(24, {}, { error: spy }, { error: spy2 });540                this.call.yieldToOn("error", thisObj);541                assert(spy.calledOnce);542                assert(spy.calledOn(thisObj));543                assert.isFalse(spy2.called);544            },545            "invokes callback with arguments": function () {546                var obj = { id: 42 };547                var spy = sinon.spy();548                var thisObj = { name1: "value1", name2: "value2" };549                this.args.push({ success: spy });550                this.call.yieldToOn("success", thisObj, obj, "Crazy");551                assert(spy.calledWith(obj, "Crazy"));552                assert(spy.calledOn(thisObj));553            },554            "throws if callback throws": function () {555                this.args.push({556                    success: function () {557                        throw new Error("d'oh!");558                    }559                });560                var call = this.call;561                var thisObj = { name1: "value1", name2: "value2" };562                assert.exception(function () {563                    call.yieldToOn("success", thisObj);564                });...call-test.js
Source:call-test.js  
...486                var thisObj = { name1: "value1", name2: "value2" };487                this.args.push({488                    success: callback489                });490                this.call.yieldToOn("success", thisObj);491                assert(callback.calledOnce);492                assert.equals(callback.args[0].length, 0);493                assert(callback.calledOn(thisObj));494            },495            "throws understandable error if no callback is passed": function () {496                var call = this.call;497                var thisObj = { name1: "value1", name2: "value2" };498                try {499                    call.yieldToOn("success", thisObj);500                    throw new Error();501                } catch (e) {502                    assert.equals(e.message, "spy cannot yield to 'success' since no callback was passed.");503                }504            },505            "includes stub name and actual arguments in error": function () {506                this.proxy.displayName = "somethingAwesome";507                this.args.push(23, 42);508                var call = this.call;509                var thisObj = { name1: "value1", name2: "value2" };510                try {511                    call.yieldToOn("success", thisObj);512                    throw new Error();513                } catch (e) {514                    assert.equals(e.message, "somethingAwesome cannot yield to 'success' since no callback was passed. " +515                                  "Received [23, 42]");516                }517            },518            "invokes property on last argument as callback": function () {519                var spy = sinon.spy();520                var thisObj = { name1: "value1", name2: "value2" };521                this.args.push(24, {}, { success: spy });522                this.call.yieldToOn("success", thisObj);523                assert(spy.calledOnce);524                assert(spy.calledOn(thisObj));525                assert.equals(spy.args[0].length, 0);526            },527            "invokes first of two possible callbacks": function () {528                var spy = sinon.spy();529                var spy2 = sinon.spy();530                var thisObj = { name1: "value1", name2: "value2" };531                this.args.push(24, {}, { error: spy }, { error: spy2 });532                this.call.yieldToOn("error", thisObj);533                assert(spy.calledOnce);534                assert(spy.calledOn(thisObj));535                assert.isFalse(spy2.called);536            },537            "invokes callback with arguments": function () {538                var obj = { id: 42 };539                var spy = sinon.spy();540                var thisObj = { name1: "value1", name2: "value2" };541                this.args.push({ success: spy });542                this.call.yieldToOn("success", thisObj, obj, "Crazy");543                assert(spy.calledWith(obj, "Crazy"));544                assert(spy.calledOn(thisObj));545            },546            "throws if callback throws": function () {547                this.args.push({548                    success: function () {549                        throw new Error("d'oh!");550                    }551                });552                var call = this.call;553                var thisObj = { name1: "value1", name2: "value2" };554                assert.exception(function () {555                    call.yieldToOn("success", thisObj);556                });...Using AI Code Generation
1var sinon = require('sinon');2var assert = require('assert');3var obj = {4    method: function (arg1, arg2, callback) {5        callback(arg1, arg2);6    }7};8var spy = sinon.spy(obj, "method");9var callback = function (arg1, arg2) {10    assert.strictEqual(arg1, 1);11    assert.strictEqual(arg2, 2);12};13obj.method(1, 2, callback);14spy.yieldToOn('callback', null, 1, 2);15var sinon = require('sinon');16var assert = require('assert');17var obj = {18    method: function (arg1, arg2, callback) {19        callback(arg1, arg2);20    }21};22var spy = sinon.spy(obj, "method");23var callback = function (arg1, arg2) {24    assert.strictEqual(arg1, 1);25    assert.strictEqual(arg2, 2);26};27obj.method(1, 2, callback);28spy.yieldOn(null, 1, 2);29var sinon = require('sinon');30var assert = require('assert');31var obj = {32    method: function (arg1, arg2, callback) {33        callback(arg1, arg2);34    }35};36var spy = sinon.spy(obj, "method");37var callback = function (arg1, arg2) {38    assert.strictEqual(arg1, 1);39    assert.strictEqual(arg2, 2);40};41obj.method(1, 2, callback);42spy.yieldTo('callback', 1, 2);43var sinon = require('sinon');44var assert = require('assert');45var obj = {46    method: function (arg1, arg2, callback) {47        callback(arg1, arg2);48    }49};50var spy = sinon.spy(obj, "methodUsing AI Code Generation
1var sinon = require('sinon');2var sinonTest = require('sinon-test');3sinon.test = sinonTest.configureTest(sinon);4var assert = require('assert');5var myApp = require('./myApp');6describe('myApp', function() {7    var callback = sinon.spy();8    var myObj = myApp.myObj;9    it('should call the callback', sinon.test(function() {10        this.stub(myObj, 'myMethod').yieldsToOn('callback', null, 'Hello World');11        myObj.myMethod(callback);12        assert(callback.called);13    }));14});15exports.myObj = {16    myMethod: function(callback) {17        callback('Hello World');18    }19}Using AI Code Generation
1var sinon = require('sinon');2var obj = {3  method: function() {4    this.call.yieldToOn('error', this, 'error');5  }6};7var spy = sinon.spy(obj, 'method');8obj.method();9spy.yieldTo('error', 'error');Using AI Code Generation
1var sinon = require('sinon');2var assert = require('assert');3var obj = { 4  fn: function() {5    console.log('fn called');6  }7};8var spy = sinon.spy(obj, 'fn');9obj.fn();10assert(spy.calledOnce);11assert(spy.calledWith());12var obj2 = {13  fn: function() {14    this.call.yieldToOn('event', this, 'arg1', 'arg2');15  }16};17var spy2 = sinon.spy(obj2, 'fn');18obj2.fn();19assert(spy2.calledOnce);20assert(spy2.calledWith());21var obj3 = {22  fn: function() {23    this.call.yieldToOn('event', this, 'arg1', 'arg2');24  }25};26var stub = sinon.stub(obj3, 'fn');27obj3.fn();28assert(stub.calledOnce);29assert(stub.calledWith());30var obj4 = {31  fn: function() {32    this.call.yieldToOn('event', this, 'arg1', 'arg2');33  }34};35var mock = sinon.mock(obj4);36obj4.fn();37mock.verify();38mock.restore();39var obj5 = {40  fn: function() {41    this.call.yieldToOn('event', this, 'arg1', 'arg2');42  }43};44var spy5 = sinon.spy(obj5, 'fn');45obj5.fn();46assert(spy5.calledOnce);47assert(spy5.calledWith());48var obj6 = {49  fn: function() {50    this.call.yieldToOn('event', this, 'arg1', 'arg2');51  }52};53var sandbox = sinon.sandbox.create();54var spy6 = sandbox.spy(obj6, 'fn');55obj6.fn();56assert(spy6.calledOnce);57assert(spy6.calledWith());58var obj7 = {59  fn: function() {60    this.call.yieldToOn('event', this, 'arg1', 'arg2');61  }62};63var test = sinon.test(function() {Using AI Code Generation
1var sinon = require('sinon');2var assert = require('assert');3var testObj = {4  method: function() {5    console.log('method called');6  }7};8var spy = sinon.spy(testObj, 'method');9var stub = sinon.stub().returns(5);10spy.yieldsToOn('callback', stub);11testObj.method('callback');12assert(spy.called);13assert(stub.called);14var sinon = require('sinon');15var assert = require('assert');16var testObj = {17  method: function() {18    console.log('method called');19  }20};21var spy = sinon.spy(testObj, 'method');22var stub = sinon.stub().returns(5);23spy.yieldsToOn('callback', stub);24testObj.method('callback');25assert(spy.called);26assert(stub.called);27var sinon = require('sinon');28var assert = require('assert');29var testObj = {30  method: function() {31    console.log('method called');32  }33};34var spy = sinon.spy(testObj, 'method');35var stub = sinon.stub().returns(5);36spy.yieldsToOn('callback', stub);37testObj.method('callback');38assert(spy.called);39assert(stub.called);40var sinon = require('sinon');41var assert = require('assert');42var testObj = {43  method: function() {44    console.log('method called');45  }46};47var spy = sinon.spy(testObj, 'method');48var stub = sinon.stub().returns(5);49spy.yieldsToOn('callback', stub);50testObj.method('callback');51assert(spy.called);52assert(stub.called);53var sinon = require('sinon');54var assert = require('assert');55var testObj = {56  method: function() {57    console.log('method called');58  }59};60var spy = sinon.spy(testObj, 'method');61var stub = sinon.stub().returns(5);62spy.yieldsToOn('callback', stub);63testObj.method('callback');64assert(spy.called);65assert(stub.called);Using AI Code Generation
1var sinon = require('sinon');2var stub = sinon.stub();3stub.yieldsToOn('error', 'this', new Error('boom'));4stub(function (err) {5});6var sinon = require('sinon');7var spy = sinon.spy();8spy('foo', 'bar');9var sinon = require('sinon');10var stub = sinon.stub();11stub.withArgs(42).returns('hello');12var sinon = require('sinon');13var test = sinon.test(function () {14    var stub = this.stub();15    stub.withArgs(42).returns('hello');16});17test();18var sinon = require('sinon');19var clock = sinon.useFakeTimers();20clock.tick(100);21clock.restore();22var sinon = require('sinon');23var xhr = sinon.useFakeXMLHttpRequest();24xhr.onCreate = function (req) {25    req.respond(200, { 'Content-Type': 'text/plain' }, 'OK');26};27xhr.open("GET", "/some/url");28xhr.send();29var sinon = require('sinon');30var object = {31    nested: {32    }33};34sinon.assert.match(object, {35    nested: {36        quux: sinon.match(function (value) {37            return value === 43;38        })39    }40});41var sinon = require('sinon');42sinon.assert.match(42, sinon.match.defined);43sinon.assert.match(undefined, sinon.match.defined);44var sinon = require('sinon');45sinon.assert.match('truthy', sinon.match.truthy);46sinon.assert.match(null, sinon.matchUsing AI Code Generation
1var sinon = require('sinon');2var assert = require('assert');3var mymodule = require('./mymodule');4describe('test', function() {5    it('test', function() {6        var stub = sinon.stub(mymodule, 'myMethod');7        var callback = sinon.spy();8        stub.yieldsToOn('myCallback', callback);9        mymodule.myMethod('test', callback);10        assert.equal(callback.callCount, 1);11    });12});13module.exports = {14    myMethod: function(param, callback) {15        callback(param);16    }17};18var sinon = require('sinon');19var assert = require('assert');20var mymodule = require('./mymodule');21describe('test', function() {22    it('test', function() {23        var stub = sinon.stub(mymodule, 'myMethod');24        stub.returns('test');25        var result = mymodule.myMethod();26        assert.equal(result, 'test');27    });28});29module.exports = {30    myMethod: function(param, callback) {31        return 'test';32    }33};Using AI Code Generation
1var sinon = require('sinon');2var assert = require('assert');3function Test() {4    this.callback = function () {5        console.log('callback function');6    }7}8Test.prototype.test = function (callback) {9    console.log('test function');10    callback();11}12var test = new Test();13var callbackSpy = sinon.spy(test, 'callback');14var testSpy = sinon.spy(test, 'test');15testSpy.yieldToOn('callback', callbackSpy);16assert(callbackSpy.called);17assert(testSpy.called);18var sinon = require('sinon');19var assert = require('assert');20function Test() {21    this.callback = function () {22        console.log('callback function');23    }24}25Test.prototype.test = function (callback) {26    console.log('test function');27    callback();28}29var test = new Test();30var callbackSpy = sinon.spy(test, 'callback');31var testSpy = sinon.spy(test, 'test');32testSpy.call({callback: callbackSpy});33assert(callbackSpy.called);34assert(testSpy.called);35var sinon = require('sinon');36var assert = require('assert');37function Test() {38    this.callback = function () {39        console.log('callback function');40    }41}42Test.prototype.test = function (callback) {43    console.log('test function');44    callback();45}46var test = new Test();47var callbackSpy = sinon.spy(test, 'callback');48var testSpy = sinon.spy(test, 'test');49testSpy.yieldToOn('callback', callbackSpy);50assert(callbackSpy.called);51assert(testSpy.called);52var sinon = require('sinon');53var assert = require('assert');54function Test() {55    this.callback = function () {56        console.log('callback function');Using AI Code Generation
1const assert = require('assert');2const sinon = require('sinon');3var db = {4  save: function (doc, callback) {5    callback();6  }7};8var log = {9  info: function (msg) {10  }11};12function saveDoc(doc, cb) {13  db.save(doc, function (err) {14    if (err) {15      log.info('Error, doc not saved');16    } else {17      cb();18    }19  });20}21describe('saveDoc', function () {22  it('should call the callback', function () {23    var mock = sinon.mock(db);24    var expectation = mock.expects('save').withArgs({ doc: 1 });25    saveDoc({ doc: 1 }, function () {26    });27    expectation.verify();28  });29});30const assert = require('assert');31const sinon = require('sinon');32var db = {33  save: function (doc, callback) {34    callback();35  }36};37var log = {38  info: function (msg) {39  }40};41function saveDoc(doc, cb) {42  db.save(doc, function (err) {43    if (err) {44      log.info('Error, doc not saved');45    } else {46      cb();47    }48  });49}50describe('saveDoc', function () {51  it('should call the callback', function () {52    var mock = sinon.mock(db);53    var expectation = mock.expects('save').withArgs({ doc: 1 });54    saveDoc({ doc: 1 }, function () {55    });56    expectation.verify();57  });58});59const assert = require('assert');60const sinon = require('sinon');61var db = {62  save: function (doc, callback) {63    callback();64  }65};66var log = {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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