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How to use evtListenerMock method in Best

Best JavaScript code snippet using best

button.spec.js

Source:button.spec.js

1/*2 * Copyright (c) 2019, salesforce.com, inc.3 * All rights reserved.4 * SPDX-License-Identifier: MIT5 * For full license text, see the LICENSE file in the repo root or https://opensource.org/licenses/MIT6 */7import { createElement } from 'lwc';8import Element from 'lightning/button';9const createButton = (props = {}) => {10    const element = createElement('lightning-button', { is: Element });11    Object.assign(element, props);12    document.body.appendChild(element);13    return element;14};15describe('lightning-button', () => {16    it('should trigger focus when button is focused', () => {17        const element = createButton({});18        const evtListenerMock = jest.fn();19        element.addEventListener('focus', evtListenerMock);20        element.shadowRoot.querySelector('button').focus();21        expect(evtListenerMock).toHaveBeenCalled();22    });23    it('should trigger blur when button lost focus', () => {24        const element = createButton({});25        const evtListenerMock = jest.fn();26        element.addEventListener('blur', evtListenerMock);27        const btn = element.shadowRoot.querySelector('button');28        btn.focus();29        btn.blur();30        expect(evtListenerMock).toHaveBeenCalled();31    });32    it('should set title attribute on the button', () => {33        const element = createButton({ title: 'Click here' });34        const btn = element.shadowRoot.querySelector('button');35        expect(btn.getAttribute('title')).toBe('Click here');36        expect(element.getAttribute('title')).toBe(null);37    });38    it('should set aria-expanded attribute on the button when false', () => {39        const element = createButton({ ariaExpanded: 'false' });40        const btn = element.shadowRoot.querySelector('button');41        return Promise.resolve().then(() => {42            expect(btn.getAttribute('aria-expanded')).toBe('false');43            expect(element.getAttribute('aria-expanded')).toBe(null);44        });45    });46    it('should set aria-expanded attribute on the button when true', () => {47        const element = createButton({ ariaExpanded: 'true' });48        const btn = element.shadowRoot.querySelector('button');49        return Promise.resolve().then(() => {50            expect(btn.getAttribute('aria-expanded')).toBe('true');51            expect(element.getAttribute('aria-expanded')).toBe(null);52        });53    });54    it('shouldnt set aria-expanded attribute when boolean', () => {55        const element = createButton({ ariaExpanded: true });56        const btn = element.shadowRoot.querySelector('button');57        return Promise.resolve().then(() => {58            expect(btn.getAttribute('aria-expanded')).toBe(null);59            expect(element.getAttribute('aria-expanded')).toBe(null);60        });61    });62    it('should set aria-live attribute on the button', () => {63        const element = createButton({ ariaLive: 'polite' });64        const btn = element.shadowRoot.querySelector('button');65        return Promise.resolve().then(() => {66            expect(btn.getAttribute('aria-live')).toBe('polite');67            expect(element.getAttribute('aria-live')).toBe(null);68        });69    });70    it('should set aria-controls attribute on the button', () => {71        const element = createButton({ ariaControls: 'section1' });72        const btn = element.shadowRoot.querySelector('button');73        return Promise.resolve().then(() => {74            expect(element).toMatchSnapshot();75            expect(btn.getAttribute('aria-controls')).toEqual(76                expect.stringContaining('[shadow:guid]')77            );78            expect(element.getAttribute('aria-controls')).toBe(null);79        });80    });81    it('should set aria-label attribute on the button', () => {82        const element = createButton({ ariaLabel: 'btn1' });83        const btn = element.shadowRoot.querySelector('button');84        return Promise.resolve().then(() => {85            expect(btn.getAttribute('aria-label')).toBe('btn1');86            expect(element.getAttribute('aria-label')).toBe(null);87        });88    });89    it('should set aria-describedby attribute on the button', () => {90        const element = createButton({ ariaDescribedBy: 'section1' });91        const btn = element.shadowRoot.querySelector('button');92        return Promise.resolve().then(() => {93            expect(element).toMatchSnapshot();94            expect(btn.getAttribute('aria-describedby')).toEqual(95                '[shadow:guid]'96            );97            expect(element.getAttribute('aria-describedby')).toBe(null);98        });99    });100    it('aria-attributes should be present and true', () => {101        const element = createButton({102            label: 'Test',103            title: 'Click here',104            ariaExpanded: 'true',105            ariaAtomic: 'true'106        });107        const btn = element.shadowRoot.querySelector('button');108        return Promise.resolve().then(() => {109            expect(element).toMatchSnapshot();110            expect(btn.getAttribute('aria-expanded')).toBe('true');111            expect(btn.getAttribute('aria-atomic')).toBe('true');112        });113    });114    it('should set not set any aria-attributes', () => {115        const element = createButton({116            label: 'Test',117            title: 'Click here',118            tabIndex: '-1',119            ariaExpanded: null120        });121        const btn = element.shadowRoot.querySelector('button');122        return Promise.resolve().then(() => {123            expect(element).toMatchSnapshot();124            expect(btn.getAttribute('aria-expanded')).toBe(null);125            expect(btn.getAttribute('aria-atomic')).toBe(null);126        });127    });128    it('fires click event when button is clicked', () => {129        const element = createButton({ label: 'Submit' });130        const evtListenerMock = jest.fn();131        element.addEventListener('click', evtListenerMock);132        element.shadowRoot.querySelector('button').click();133        return Promise.resolve().then(() => {134            expect(evtListenerMock.mock.calls).toHaveLength(1);135        });136    });137    it('should set pointer-events to none when button is disabled', () => {138        const element = createButton({ label: 'Submit', disabled: true });139        expect(element.style.pointerEvents).toBe('none');140        element.disabled = false;141        return Promise.resolve()142            .then(() => {143                expect(element.style.pointerEvents).toBe('');144                element.disabled = true;145            })146            .then(() => {147                expect(element.style.pointerEvents).toBe('none');148            });149    });...

Using AI Code Generation

1var BestPractice = require('./BestPractice');2var bestPractice = new BestPractice();3bestPractice.evtListenerMock();4var BestPractice = function() {5    this.evtListenerMock = function() {6        var EventEmitter = require('events').EventEmitter;7        var emitter = new EventEmitter();8        emitter.on('event', function() {9            console.log('event');10        });11        emitter.emit('event');12    }13};14module.exports = BestPractice;

Using AI Code Generation

1var evtListenerMock = require('best-event-emitter').evtListenerMock;2var listener = evtListenerMock(function(err, data) {3  console.log('listener called with err: ' + err + ' and data: ' + data);4});5listener('err', 'data');6var BestEventEmitter = require('best-event-emitter');7var emitter = new BestEventEmitter();8emitter.on('test', function(err, data) {9  console.log('listener called with err: ' + err + ' and data: ' + data);10});11emitter.emit('test', 'err', 'data');12var BestEventEmitter = require('best-event-emitter');13var emitter = new BestEventEmitter();14emitter.on('test', function(err, data) {15  console.log('listener called with err: ' + err + ' and data: ' + data);16});17emitter.emit('test', 'err', 'data');18var BestEventEmitter = require('best-event-emitter');19var emitter = new BestEventEmitter();20emitter.on('test', function(err, data) {21  console.log('listener called with err: ' + err + ' and data: ' + data);22});23emitter.emit('test', 'err', 'data');24var BestEventEmitter = require('best-event-emitter');25var emitter = new BestEventEmitter();26emitter.on('test', function(err, data) {27  console.log('listener called with err: ' + err + ' and data: ' + data);28});29emitter.emit('test', 'err', 'data');30var BestEventEmitter = require('best-event-emitter');31var emitter = new BestEventEmitter();32emitter.on('test', function(err, data) {

Using AI Code Generation

1var BestEventEmitter = require('BestEventEmitter');2var evt = new BestEventEmitter();3evt.evtListenerMock('test', function() {4    console.log('test');5});6evt.emit('test');7var evt = new BestEventEmitter();8evt.evtListenerMock('test', function() {9    console.log('test');10});11evt.emit('test');12var evt = new BestEventEmitter();13evt.evtListenerMock('test', function() {14    console.log('test');15});16evt.emit('test');17var evt = new BestEventEmitter();18evt.evtListenerMock('test', function() {19    console.log('test');20});21evt.emit('test');22var evt = new BestEventEmitter();23evt.evtListenerMock('test', function() {24    console.log('test');25});26evt.emit('test');27var evt = new BestEventEmitter();28evt.evtListenerMock('test', function() {29    console.log('test');30});31evt.emit('test');32var evt = new BestEventEmitter();33evt.evtListenerMock('test', function() {34    console.log('test');35});36evt.emit('test');37var evt = new BestEventEmitter();38evt.evtListenerMock('test', function() {39    console.log('test');40});41evt.emit('test');42var evt = new BestEventEmitter();43evt.evtListenerMock('test', function() {44    console.log('test');45});46evt.emit('test');47var evt = new BestEventEmitter();48evt.evtListenerMock('test', function() {49    console.log('test');50});51evt.emit('test');52var evt = new BestEventEmitter();53evt.evtListenerMock('test', function() {54    console.log('test');55});56evt.emit('test');57var evt = new BestEventEmitter();58evt.evtListenerMock('test', function() {59    console.log('test');60});61evt.emit('test');62var evt = new BestEventEmitter();63evt.evtListenerMock('test', function() {64    console.log('test');65});66evt.emit('test');67var evt = new BestEventEmitter();68evt.evtListenerMock('test', function() {69    console.log('test');70});71evt.emit('test');72var evt = new BestEventEmitter();73evt.evtListenerMock('test', function() {74    console.log('test');75});76evt.emit('test');77var evt = new BestEventEmitter();78evt.evtListenerMock('test', function() {

Using AI Code Generation

1var BestEventEmitter = require('BestEventEmitter');2var myEmitter = new BestEventEmitter();3var evtListenerMock = myEmitter.evtListenerMock;4var evtListenerMock = myEmitter.evtListenerMock;5it('should call the event listener', function() {6  var listener = evtListenerMock();7  myEmitter.on('event', listener);8  myEmitter.emit('event');9  assert(listener.called);10});11it('should call the event listener with arguments', function() {12  var listener = evtListenerMock();13  myEmitter.on('event', listener);14  myEmitter.emit('event', 'arg1', 'arg2');15  assert(listener.calledWith('arg1', 'arg2'));16});17it('should call the event listener with arguments', function() {18  var listener = evtListenerMock();19  myEmitter.on('event', listener);20  myEmitter.emit('event', 'arg1', 'arg2');21  assert(listener.calledWith('arg1', 'arg2'));22});23it('should call the event listener with arguments', function() {24  var listener = evtListenerMock();25  myEmitter.on('event', listener);26  myEmitter.emit('event', 'arg1', 'arg2');27  assert(listener.calledWith('arg1', 'arg2'));28});29it('should call the event listener with arguments', function() {30  var listener = evtListenerMock();31  myEmitter.on('event', listener);32  myEmitter.emit('event',

Using AI Code Generation

1var BestBuyEvent = require('./BestBuyEvent.js');2var evt = BestBuyEvent.evtListenerMock();3evt.on('newProduct', function(data) {4    console.log('New product arrived at our warehouse: ' + data.name);5});6evt.emit('newProduct', { name: 'The Big Lebowski (Blu-ray)' });7var BestBuyEvent = require('./BestBuyEvent.js');8var evt = BestBuyEvent.evtListener();9evt.on('newProduct', function(data) {10    console.log('New product arrived at our warehouse: ' + data.name);11});12evt.emit('newProduct', { name: 'The Big Lebowski (Blu-ray)' });13var BestBuyEvent = require('./BestBuyEvent.js');14var evt = BestBuyEvent.evtListener();15evt.on('newProduct', function(data) {16    console.log('New product arrived at our warehouse: ' + data.name);17});18evt.emit('newProduct', { name: 'The Big Lebowski (Blu-ray)' });19var util = require('util');20var EventEmitter = require('events').EventEmitter;21var BestBuyEvent = function() {22    EventEmitter.call(this);23};24util.inherits(BestBuyEvent, EventEmitter);25BestBuyEvent.prototype.evtListenerMock = function() {26    var self = this;27    setTimeout(function() {28        self.emit('newProduct', { name: 'The Big Lebowski (Blu-ray)' });29    }, 2000);30    return this;31};32BestBuyEvent.prototype.evtListener = function() {33    var self = this;34    var request = require('request');35        if (!error && response.statusCode == 200) {36            var data = JSON.parse(body);37            console.log(data);38            self.emit('newProduct', data);39        }40    });41    return this;42};43module.exports = new BestBuyEvent();44var express = require('express');45var app = express();46var bodyParser = require('body-parser');47var http = require('http').Server(app);48var io = require('socket.io')(http);49app.use(bodyParser.json());50app.use(bodyParser.urlencoded({

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