Best JavaScript code snippet using puppeteer
preprocessor.spec.js
Source:preprocessor.spec.js
...70 <!-- gen:unknown-command -->something<!-- gen:stop -->71 `72 );73 const messages = runCommands([source], '1.1.1');74 expect(source.hasUpdatedText()).toBe(false);75 expect(messages.length).toBe(1);76 expect(messages[0].type).toBe('error');77 expect(messages[0].text).toContain('Unknown command');78 });79 describe('gen:version', function () {80 it('should work', function () {81 const source = new Source(82 'doc.md',83 `84 Puppeteer <!-- gen:version -->XXX<!-- gen:stop -->85 `86 );87 const messages = runCommands([source], '1.2.0');88 expect(messages.length).toBe(1);89 expect(messages[0].type).toBe('warning');90 expect(messages[0].text).toContain('doc.md');91 expect(source.text()).toBe(`92 Puppeteer <!-- gen:version -->v1.2.0<!-- gen:stop -->93 `);94 });95 it('should work for *-post versions', function () {96 const source = new Source(97 'doc.md',98 `99 Puppeteer <!-- gen:version -->XXX<!-- gen:stop -->100 `101 );102 const messages = runCommands([source], '1.2.0-post');103 expect(messages.length).toBe(1);104 expect(messages[0].type).toBe('warning');105 expect(messages[0].text).toContain('doc.md');106 expect(source.text()).toBe(`107 Puppeteer <!-- gen:version -->Tip-Of-Tree<!-- gen:stop -->108 `);109 });110 it('should tolerate different writing', function () {111 const source = new Source(112 'doc.md',113 `Puppeteer v<!-- gEn:version -->WHAT114<!-- GEN:stop -->`115 );116 runCommands([source], '1.1.1');117 expect(source.text()).toBe(118 `Puppeteer v<!-- gEn:version -->v1.1.1<!-- GEN:stop -->`119 );120 });121 it('should not tolerate missing gen:stop', function () {122 const source = new Source('doc.md', `<!--GEN:version-->`);123 const messages = runCommands([source], '1.2.0');124 expect(source.hasUpdatedText()).toBe(false);125 expect(messages.length).toBe(1);126 expect(messages[0].type).toBe('error');127 expect(messages[0].text).toContain(`Failed to find 'gen:stop'`);128 });129 });130 describe('gen:empty-if-release', function () {131 it('should clear text when release version', function () {132 const source = new Source(133 'doc.md',134 `135 <!-- gen:empty-if-release -->XXX<!-- gen:stop -->136 `137 );138 const messages = runCommands([source], '1.1.1');...
SourceFactory.js
Source:SourceFactory.js
...68 }69 /**70 * @return {boolean}71 */72 hasUpdatedText() {73 return this._hasUpdatedText;74 }75}76class SourceFactory {77 constructor() {78 this._sources = new Map();79 }80 /**81 * @return {!Array<!Source>}82 */83 sources() {84 return Array.from(this._sources.values());85 }86 /**87 * @return {!Promise<boolean>}88 */89 async saveChangedSources() {90 const changedSources = Array.from(this._sources.values()).filter(source => source.hasUpdatedText());91 if (!changedSources.length)92 return false;93 await Promise.all(changedSources.map(source => writeFileAsync(source.filePath(), source.text())));94 return true;95 }96 /**97 * @param {string} filePath98 * @return {!Promise<Source>}99 */100 async readFile(filePath) {101 filePath = path.resolve(filePath);102 let source = this._sources.get(filePath);103 if (!source) {104 const text = await readFileAsync(filePath, {encoding: 'utf8'});...
cli.js
Source:cli.js
...33 const mdSources = [readme];34 const preprocessor = require('./preprocessor');35 messages.push(...await preprocessor.runCommands(mdSources, VERSION));36 for (const source of mdSources) {37 if (!source.hasUpdatedText())38 continue;39 await source.save();40 changedFiles = true;41 }42 }43 // Report results.44 const errors = messages.filter(message => message.type === 'error');45 if (errors.length) {46 console.log('DocLint Failures:');47 for (let i = 0; i < errors.length; ++i) {48 let error = errors[i].text;49 error = error.split('\n').join('\n ');50 console.log(` ${i + 1}) ${RED_COLOR}${error}${RESET_COLOR}`);51 }...
Source.js
Source:Source.js
...69 }70 /**71 * @return {boolean}72 */73 hasUpdatedText() {74 return this._hasUpdatedText;75 }76 async save() {77 await writeFileAsync(this.filePath(), this.text());78 }79 /**80 * @param {string} filePath81 * @return {!Promise<Source>}82 */83 static async readFile(filePath) {84 filePath = path.resolve(filePath);85 const text = await readFileAsync(filePath, {encoding: 'utf8'});86 return new Source(filePath, text);87 }...
test.js
Source:test.js
...20describe('preprocessor', function() {21 it('should throw for unknown command', function() {22 const source = factory.createForTest('doc.md', getCommand('unknownCommand()'));23 const messages = preprocessor([source]);24 expect(source.hasUpdatedText()).toBe(false);25 expect(messages.length).toBe(1);26 expect(messages[0].type).toBe('error');27 expect(messages[0].text).toContain('Unknown command');28 });29 describe('gen:version', function() {30 it('should work', function() {31 const source = factory.createForTest('doc.md', `Puppeteer v${getCommand('version')}`);32 const messages = preprocessor([source]);33 expect(messages.length).toBe(1);34 expect(messages[0].type).toBe('warning');35 expect(messages[0].text).toContain('doc.md');36 expect(source.text()).toBe(`Puppeteer v${getCommand('version', VERSION)}`);37 });38 it('should tolerate different writing', function() {39 const source = factory.createForTest('doc.md', `Puppeteer v<!-- gEn:version ( ) -->WHAT40<!-- GEN:stop -->`);41 preprocessor([source]);42 expect(source.text()).toBe(`Puppeteer v<!-- gEn:version ( ) -->${VERSION}<!-- GEN:stop -->`);43 });44 it('should not tolerate missing gen:stop', function() {45 const source = factory.createForTest('doc.md', `<!--GEN:version-->`);46 const messages = preprocessor([source]);47 expect(source.hasUpdatedText()).toBe(false);48 expect(messages.length).toBe(1);49 expect(messages[0].type).toBe('error');50 expect(messages[0].text).toContain(`Failed to find 'gen:stop'`);51 });52 });53});54function getCommand(name, body = '') {55 return `<!--gen:${name}-->${body}<!--gen:stop-->`;...
Using AI Code Generation
1const puppeteer = require('puppeteer');2(async () => {3 const browser = await puppeteer.launch();4 const page = await browser.newPage();5 await page.type('input[title="Search"]', 'Hello World');6 await page.waitForFunction(() => {7 return document.querySelector('input[title="Search"]').value === 'Hello World';8 });9 await browser.close();10})();11The waitForFunction() method takes an optional second parameter which is an object. The object can take the following properties:12The waitForFunction() method is useful when you want to wait for a specific condition to be met. For example, you want to wait for a specific DOM element to be available. You can use the waitForFunction() method to wait for the
Using AI Code Generation
1const puppeteer = require('puppeteer');2(async () => {3 const browser = await puppeteer.launch({ headless: false });4 const page = await browser.newPage();5 await page.waitForSelector('h1');6 await page.waitForFunction(() => {7 return document.querySelector('h1').hasUpdatedText('Example Domain');8 });9 await page.screenshot({ path: 'example.png' });10 await browser.close();11})();12elementHandle.hasUpdatedText(text, options)13const puppeteer = require('puppeteer');14(async () => {15 const browser = await puppeteer.launch({ headless: false });16 const page = await browser.newPage();17 await page.waitForSelector('h1');18 const h1 = await page.$('h1');19 const updated = await h1.hasUpdatedText('Example Domain');20 console.log(updated);21 await browser.close();22})();
Using AI Code Generation
1const puppeteer = require('puppeteer');2(async () => {3const browser = await puppeteer.launch();4const page = await browser.newPage();5await page.type('input[title="Search"]', 'Puppeteer');6await page.keyboard.press('Enter');7await page.waitForNavigation();8await page.waitForSelector('#resultStats', {9});10const textContent = await page.$eval('#resultStats', el => el.textContent);11console.log(textContent);12await browser.close();13})();14const puppeteer = require('puppeteer');15(async () => {16const browser = await puppeteer.launch();17const page = await browser.newPage();18await page.type('input[title="Search"]', 'Puppeteer');19await page.keyboard.press('Enter');20await page.waitForNavigation();21await page.waitForSelector('#resultStats', {22});23const textContent = await page.$eval('#resultStats', el => el.textContent);24console.log(textContent);25await browser.close();26})();27const puppeteer = require('puppeteer');28(async () => {29const browser = await puppeteer.launch();30const page = await browser.newPage();31await page.type('input[title="Search"]', 'Puppeteer');32await page.keyboard.press('Enter');33await page.waitForNavigation();34await page.waitForSelector('#resultStats', {35});36const textContent = await page.$eval('#resultStats', el => el.textContent);37console.log(textContent);38await browser.close();39})();40const puppeteer = require('puppeteer');41(async () => {42const browser = await puppeteer.launch();43const page = await browser.newPage();
Using AI Code Generation
1const puppeteer = require('puppeteer');2(async () => {3 const browser = await puppeteer.launch();4 const page = await browser.newPage();5 await page.waitForSelector('input[name="q"]');6 await page.type('input[name="q"]', 'puppeteer');7 await page.waitForSelector('input[value="Google Search"]');8 await page.click('input[value="Google Search"]');9 const hasUpdatedText = await page.evaluate(() => {10 const element = document.querySelector('input[name="q"]');11 return element.value === 'puppeteer';12 });13 console.log(hasUpdatedText);14 await browser.close();15})();
Using AI Code Generation
1const puppeteerHelper = require('./puppeteerHelper');2const puppeteer = new puppeteerHelper();3(async () => {4 await puppeteer.launchBrowser();5 await puppeteer.hasUpdatedText('input[name="q"]', 'puppeteer');6 await puppeteer.closeBrowser();7})();
Using AI Code Generation
1const puppeteer = require("puppeteer");2(async () => {3 const browser = await puppeteer.launch();4 const page = await browser.newPage();5 const h1 = await page.$("h1");6 const hasChanged = await h1.evaluate(7 (node) => node.hasUpdatedText("Example Domain")8 );9 console.log(hasChanged);10 await browser.close();11})();12const puppeteer = require("puppeteer");13(async () => {14 const browser = await puppeteer.launch();15 const page = await browser.newPage();16 await page.waitForSelectorAndClick("h1");17 await browser.close();18})();19const puppeteer = require("puppeteer");20(async () => {21 const browser = await puppeteer.launch();22 const page = await browser.newPage();23 await page.waitForSelectorAndType("h1", "Hello World");24 await browser.close();25})();26const puppeteer = require("puppeteer");27(async () => {28 const browser = await puppeteer.launch();29 const page = await browser.newPage();30 await page.waitForSelectorAndPress("h1", "Enter");31 await browser.close();32})();
Using AI Code Generation
1const puppeteer = require('puppeteer');2const io = require('socket.io-client');3(async () => {4 const browser = await puppeteer.launch();5 const page = await browser.newPage();6 const text = await page.evaluate(() => {7 return document.querySelector('body').innerText;8 });9 console.log(text);10 await browser.close();11})();12const express = require('express');13const app = express();14const http = require('http').Server(app);15const io = require('socket.io')(http);16app.use(express.static('public'));17app.get('/', function(req, res){18 res.sendFile(__dirname + '/index.html');19});20io.on('connection', function(socket){21 console.log('a user connected');22});23http.listen(3000, function(){24 console.log('listening on *:3000');25});26 * { margin: 0; padding: 0; box-sizing: border-box; }27 html, body { height: 100%; }28 body { background: #eee; display: flex; justify-content: center; align-items: center; font: 13px Helvetica, Arial; }29 form { background: #000; padding: 3px; position: fixed; bottom: 0; width: 100%; }30 form input { border: 0; padding: 10px; width: 90%; margin-right: .5%; }31 form button { width: 9%; background: rgb(130, 224, 255); border: none; padding: 10px; }32 #messages { list-style-type: none; margin: 0; padding: 0; }
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.
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Get 100 minutes of automation test minutes FREE!!