Best JavaScript code snippet using sinon
mock-expectation.js
Source:mock-expectation.js  
...10var format = require("./util/core/format");11var valueToString = require("./util/core/value-to-string");12var slice = Array.prototype.slice;13var push = Array.prototype.push;14function callCountInWords(callCount) {15    if (callCount === 0) {16        return "never called";17    }18    return "called " + timesInWords(callCount);19}20function expectedCallCountInWords(expectation) {21    var min = expectation.minCalls;22    var max = expectation.maxCalls;23    if (typeof min === "number" && typeof max === "number") {24        var str = timesInWords(min);25        if (min !== max) {26            str = "at least " + str + " and at most " + timesInWords(max);27        }28        return str;29    }30    if (typeof min === "number") {31        return "at least " + timesInWords(min);32    }33    return "at most " + timesInWords(max);34}35function receivedMinCalls(expectation) {36    var hasMinLimit = typeof expectation.minCalls === "number";37    return !hasMinLimit || expectation.callCount >= expectation.minCalls;38}39function receivedMaxCalls(expectation) {40    if (typeof expectation.maxCalls !== "number") {41        return false;42    }43    return expectation.callCount === expectation.maxCalls;44}45function verifyMatcher(possibleMatcher, arg) {46    var isMatcher = match && match.isMatcher(possibleMatcher);47    return isMatcher && possibleMatcher.test(arg) || true;48}49var mockExpectation = {50    minCalls: 1,51    maxCalls: 1,52    create: function create(methodName) {53        var expectation = extend(stub.create(), mockExpectation);54        delete expectation.create;55        expectation.method = methodName;56        return expectation;57    },58    invoke: function invoke(func, thisValue, args) {59        this.verifyCallAllowed(thisValue, args);60        return spyInvoke.apply(this, arguments);61    },62    atLeast: function atLeast(num) {63        if (typeof num !== "number") {64            throw new TypeError("'" + valueToString(num) + "' is not number");65        }66        if (!this.limitsSet) {67            this.maxCalls = null;68            this.limitsSet = true;69        }70        this.minCalls = num;71        return this;72    },73    atMost: function atMost(num) {74        if (typeof num !== "number") {75            throw new TypeError("'" + valueToString(num) + "' is not number");76        }77        if (!this.limitsSet) {78            this.minCalls = null;79            this.limitsSet = true;80        }81        this.maxCalls = num;82        return this;83    },84    never: function never() {85        return this.exactly(0);86    },87    once: function once() {88        return this.exactly(1);89    },90    twice: function twice() {91        return this.exactly(2);92    },93    thrice: function thrice() {94        return this.exactly(3);95    },96    exactly: function exactly(num) {97        if (typeof num !== "number") {98            throw new TypeError("'" + valueToString(num) + "' is not a number");99        }100        this.atLeast(num);101        return this.atMost(num);102    },103    met: function met() {104        return !this.failed && receivedMinCalls(this);105    },106    verifyCallAllowed: function verifyCallAllowed(thisValue, args) {107        var expectedArguments = this.expectedArguments;108        if (receivedMaxCalls(this)) {109            this.failed = true;110            mockExpectation.fail(this.method + " already called " + timesInWords(this.maxCalls));111        }112        if ("expectedThis" in this && this.expectedThis !== thisValue) {113            mockExpectation.fail(this.method + " called with " + valueToString(thisValue) +114                " as thisValue, expected " + valueToString(this.expectedThis));115        }116        if (!("expectedArguments" in this)) {117            return;118        }119        if (!args) {120            mockExpectation.fail(this.method + " received no arguments, expected " +121                format(expectedArguments));122        }123        if (args.length < expectedArguments.length) {124            mockExpectation.fail(this.method + " received too few arguments (" + format(args) +125                "), expected " + format(expectedArguments));126        }127        if (this.expectsExactArgCount &&128            args.length !== expectedArguments.length) {129            mockExpectation.fail(this.method + " received too many arguments (" + format(args) +130                "), expected " + format(expectedArguments));131        }132        expectedArguments.forEach(function (expectedArgument, i) {133            if (!verifyMatcher(expectedArgument, args[i])) {134                mockExpectation.fail(this.method + " received wrong arguments " + format(args) +135                    ", didn't match " + expectedArguments.toString());136            }137            if (!deepEqual(expectedArgument, args[i])) {138                mockExpectation.fail(this.method + " received wrong arguments " + format(args) +139                    ", expected " + format(expectedArguments));140            }141        }, this);142    },143    allowsCall: function allowsCall(thisValue, args) {144        var expectedArguments = this.expectedArguments;145        if (this.met() && receivedMaxCalls(this)) {146            return false;147        }148        if ("expectedThis" in this && this.expectedThis !== thisValue) {149            return false;150        }151        if (!("expectedArguments" in this)) {152            return true;153        }154        args = args || [];155        if (args.length < expectedArguments.length) {156            return false;157        }158        if (this.expectsExactArgCount &&159            args.length !== expectedArguments.length) {160            return false;161        }162        return expectedArguments.every(function (expectedArgument, i) {163            if (!verifyMatcher(expectedArgument, args[i])) {164                return false;165            }166            if (!deepEqual(expectedArgument, args[i])) {167                return false;168            }169            return true;170        });171    },172    withArgs: function withArgs() {173        this.expectedArguments = slice.call(arguments);174        return this;175    },176    withExactArgs: function withExactArgs() {177        this.withArgs.apply(this, arguments);178        this.expectsExactArgCount = true;179        return this;180    },181    on: function on(thisValue) {182        this.expectedThis = thisValue;183        return this;184    },185    toString: function () {186        var args = (this.expectedArguments || []).slice();187        if (!this.expectsExactArgCount) {188            push.call(args, "[...]");189        }190        var callStr = spyCallToString.call({191            proxy: this.method || "anonymous mock expectation",192            args: args193        });194        var message = callStr.replace(", [...", "[, ...") + " " +195            expectedCallCountInWords(this);196        if (this.met()) {197            return "Expectation met: " + message;198        }199        return "Expected " + message + " (" +200            callCountInWords(this.callCount) + ")";201    },202    verify: function verify() {203        if (!this.met()) {204            mockExpectation.fail(this.toString());205        } else {206            mockExpectation.pass(this.toString());207        }208        return true;209    },210    pass: function pass(message) {211        assert.pass(message);212    },213    fail: function fail(message) {214        var exception = new Error(message);...Using AI Code Generation
1var callCountInWords = sinonSpy.callCountInWords;2var sinonSpy = sinon.spy();3sinonSpy();4sinonSpy();5sinonSpy();6sinonSpy();7sinonSpy();8sinonSpy();9sinonSpy();10sinonSpy();11sinonSpy();12sinonSpy();13sinonSpy();14sinonSpy();15sinonSpy();16sinonSpy();17sinonSpy();18sinonSpy();19sinonSpy();20sinonSpy();21sinonSpy();22sinonSpy();23sinonSpy();24sinonSpy();25sinonSpy();26sinonSpy();Using AI Code Generation
1var sinon = require('sinon');2var obj = {callCountInWords: sinon.spy()};3obj.callCountInWords();4obj.callCountInWords();5var sinon = require('sinon');6var obj = {callCountInWords: sinon.spy()};7obj.callCountInWords();8obj.callCountInWords();9var sinon = require('sinon');10var obj = {callCountInWords: sinon.spy()};11obj.callCountInWords();12obj.callCountInWords();13var sinon = require('sinon');14var obj = {callCountInWords: sinon.spy()};15obj.callCountInWords();16obj.callCountInWords();17var sinon = require('sinonUsing AI Code Generation
1var sinon = require('sinon');2var obj = { method: function() { } };3var spy = sinon.spy(obj, "method");4obj.method();5obj.method();6obj.method();7var sinon = require('sinon');8var obj = { method: function() { } };9var spy = sinon.spy(obj, "method");10obj.method();11obj.method();12obj.method();13var sinon = require('sinon');14var obj = { method: function() { } };15var spy = sinon.spy(obj, "method");16obj.method();17obj.method();18obj.method();19var sinon = require('sinon');20var obj = { method: function() { } };21var spy = sinon.spy(obj, "method");22obj.method();23obj.method();24obj.method();25var sinon = require('sinon');26var obj = { method: function() { } };27var spy = sinon.spy(obj, "method");28obj.method();29obj.method();30obj.method();31var sinon = require('sinon');32var obj = { method: function() { } };33var spy = sinon.spy(obj, "method");34obj.method();35obj.method();36obj.method();Using AI Code Generation
1var sinon = require('sinon');2var callCountInWords = sinon.callCountInWords;3var spy = sinon.spy();4spy();5spy();6var sinon = require('sinon');7var callCountInWords = sinon.callCountInWords;8var spy = sinon.spy();9spy();10spy();11var sinon = require('sinon');12var callCountInWords = sinon.callCountInWords;13var spy = sinon.spy();14spy();15spy();16var sinon = require('sinon');17var callCountInWords = sinon.callCountInWords;18var spy = sinon.spy();19spy();20spy();21var sinon = require('sinon');22var callCountInWords = sinon.callCountInWords;23var spy = sinon.spy();24spy();25spy();26var sinon = require('sinon');27var callCountInWords = sinon.callCountInWords;28var spy = sinon.spy();29spy();30spy();31var sinon = require('sinon');32var callCountInWords = sinon.callCountInWords;33var spy = sinon.spy();34spy();35spy();36var sinon = require('sinon');37var callCountInWords = sinon.callCountInWords;38var spy = sinon.spy();39spy();40spy();Using AI Code Generation
1var sinon = require('sinon');2var spy = sinon.spy();3spy(1);4spy(2);5spy(3);6console.log(sinon.callCountInWords(spy));Using AI Code Generation
1var sinon = require('sinon');2var assert = require('assert');3var obj = {4    method: function() {5        console.log('Hello World');6    }7};8var spy = sinon.spy(obj, 'method');9obj.method();10assert(spy.calledOnce);11assert(spy.calledTwice);12assert(spy.calledThrice);13assert(spy.calledOn(obj));14assert(spy.calledWithNew());15assert(spy.calledWithExactly('Hello World'));16assert(spy.calledWithMatch('Hello'));17assert(spy.calledBefore(spy));18assert(spy.calledAfter(spy));19assert(spy.calledWithNew());20assert(spy.alwaysCalledOn(obj));21assert(spy.alwaysCalledWithExactly('Hello World'));22assert(spy.alwaysCalledWithMatch('Hello'));23assert(spy.neverCalledWith('Hello World'));24assert(spy.neverCalledWith('Hello'));25assert(spy.threw());26assert(spy.threw('Error'));27assert(spy.threw('Error', 'error message'));28assert(spy.returned());29assert(spy.returned(obj));30assert(spy.returned(obj.method));31console.log(spy.callCount);32console.log(spy.thisValues);33console.log(spy.args);34console.log(spy.exceptions);35console.log(spy.returnValues);36console.log(spy.firstCall);37console.log(spy.secondCall);38console.log(spy.thirdCall);39console.log(spy.lastCall);40console.log(spy.firstArg);41console.log(spy.secondArg);42console.log(spy.thirdArg);43console.log(spy.lastArg);44console.log(spy.calledBefore(spy));45console.log(spy.calledAfter(spy));46console.log(spy.calledImmediatelyBefore(spy));47console.log(spy.calledImmediatelyAfter(spy));48console.log(spy.calledWithNew());49console.log(spy.alwaysCalledOn(obj));50console.log(spy.alwaysCalledWithExactly('Hello World'));51console.log(spy.alwaysCalledWithMatch('Hello'));52console.log(spy.neverCalledWith('Hello World'));53console.log(spy.neverCalledWith('Hello'));54console.log(spy.threw());55console.log(spy.threw('Error'));56console.log(spy.threw('Error', 'error message'));57console.log(spy.returned());58console.log(spy.returned(obj));59console.log(spy.returned(obj.method));Using AI Code Generation
1var sinon = require('sinon');2var assert = require('assert');3var mymodule = require('./mymodule');4var mymodule2 = require('./mymodule2');5var mymodule3 = require('./mymodule3');6var mymodule4 = require('./mymodule4');7var mymodule5 = require('./mymodule5');8var obj = new mymodule();9var obj2 = new mymodule2();10var obj3 = new mymodule3();11var obj4 = new mymodule4();12var obj5 = new mymodule5();13var spy = sinon.spy(obj, 'callCountInWords');14var spy2 = sinon.spy(obj2, 'callCountInWords');15var spy3 = sinon.spy(obj3, 'callCountInWords');16var spy4 = sinon.spy(obj4, 'callCountInWords');17var spy5 = sinon.spy(obj5, 'callCountInWords');18var spy6 = sinon.spy(obj2, 'callCountInWords');19var spy7 = sinon.spy(obj2, 'callCountInWords');20var spy8 = sinon.spy(obj2, 'callCountInWords');21var spy9 = sinon.spy(obj2, 'callCountInWords');22var spy10 = sinon.spy(obj2, 'callCountInWords');23var spy11 = sinon.spy(obj3, 'callCountInWords');24var spy12 = sinon.spy(obj3, 'callCountInWords');25var spy13 = sinon.spy(obj3, 'callCountInWords');26var spy14 = sinon.spy(obj3, 'callCountInWords');27var spy15 = sinon.spy(obj3, 'callCountInWords');28var spy16 = sinon.spy(obj4, 'callCountInWords');29var spy17 = sinon.spy(obj4, 'callCountInWords');30var spy18 = sinon.spy(obj4, 'callCountInWords');31var spy19 = sinon.spy(obj4, 'callCountInWords');32var spy20 = sinon.spy(obj4, 'callCountInWords');33var spy21 = sinon.spy(obj5, 'callCountInWords');34var spy22 = sinon.spy(obj5, 'callCountInWords');35var spy23 = sinon.spy(obj5, 'callCountInWords');Using AI Code Generation
1var sinon = require('sinon');2var assert = require('assert');3var myfunc = require('./myfunc.js');4var spy = sinon.spy(myfunc, 'callCountInWords');5myfunc.callCountInWords();6assert(spy.calledOnce);7assert(spy.calledWithExactly('one'));8assert(spy.calledWithExactly('two'));9assert(spy.calledWithExactly('three'));10assert(spy.calledWithExactly('many'));11spy.restore();12exports.callCountInWords = function(count){13    if(count==1)14        return 'one';15    else if(count==2)16        return 'two';17    else if(count==3)18        return 'three';19        return 'many';20}21sinon.stub(myfunc, 'callCountInWords').returns('one');22var myfunc = require('./myfunc.js');23sinon.stub(myfunc, 'callCountInWords').returns('one');Using AI Code Generation
1var sinon = require('sinon');2var sinonSpy = sinon.spy();3sinonSpy('A');4sinonSpy('B');5sinonSpy('C');6console.log(sinonSpy.callCountInWords());7var sinon = require('sinon');8var sinonSpy = sinon.spy();9sinonSpy('A');10sinonSpy('B');11sinonSpy('C');12console.log(sinonSpy.callCountInWords());13var sinon = require('sinon');14var sinonSpy = sinon.spy();15sinonSpy('A');16sinonSpy('B');17sinonSpy('C');18console.log(sinonSpy.callCountInWords());19var sinon = require('sinon');20var sinonSpy = sinon.spy();21sinonSpy('A');22sinonSpy('B');23sinonSpy('C');24console.log(sinonSpy.callCountInWords());25var sinon = require('sinon');26var sinonSpy = sinon.spy();27sinonSpy('A');28sinonSpy('B');29sinonSpy('C');30console.log(sinonSpy.callCountInWords());31var sinon = require('sinon');32var sinonSpy = sinon.spy();33sinonSpy('A');34sinonSpy('B');35sinonSpy('C');36console.log(sinonSpy.callCountInWords());37var sinon = require('sinon');38var sinonSpy = sinon.spy();39sinonSpy('Using AI Code Generation
1var spy = sinon.spy(myObject, "callCountInWords");2myObject.callCountInWords();3sinon.assert.calledOnce(spy);4console.log(spy.returned("once"));5var spy = sinon.spy(myObject, "callCountInWords");6myObject.callCountInWords();7sinon.assert.calledOnce(spy);8console.log(spy.returned("once"));9var spy = sinon.spy(myObject, "callCountInWords");10myObject.callCountInWords();11sinon.assert.calledOnce(spy);12console.log(spy.returned("once"));13var spy = sinon.spy(myObject, "callCountInWords");14myObject.callCountInWords();15sinon.assert.calledOnce(spy);16console.log(spy.returned("once"));17var spy = sinon.spy(myObject, "callCountInWords");18myObject.callCountInWords();19sinon.assert.calledOnce(spy);20console.log(spy.returned("once"));21var spy = sinon.spy(myObject, "callCountInWords");22myObject.callCountInWords();23sinon.assert.calledOnce(spy);24console.log(spy.returned("once"));25var spy = sinon.spy(myObject, "callCountInWords");26myObject.callCountInWords();27sinon.assert.calledOnce(spy);28console.log(spy.returned("once"));29var spy = sinon.spy(myObject, "callCountInWords");30myObject.callCountInWords();31sinon.assert.calledOnce(spy);32console.log(spy.returned("once"));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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