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How to use newCDPSession method in Playwright Internal
Best JavaScript code snippet using playwright-internal
index.js
Source:index.js 
...45 });46 } else { // Chromium - use CDP to override47 c.pages().forEach(async p => {48 try {49 (await p.context().newCDPSession(p)).send('Emulation.setUserAgentOverride', { userAgent, acceptLanguage, platform, userAgentMetadata })50 } catch (e) { console.log('Warning: could not set UA override:', e); }51 });52 c.on('page', async p => {53 try {54 (await p.context().newCDPSession(p)).send('Emulation.setUserAgentOverride', { userAgent, acceptLanguage, platform, userAgentMetadata })55 } catch (e) { console.log('Warning: could not set UA override:', e); }56 });57 }58 });59 console.log('Stealth enabled');60 }...
variability.spec.js
Source:variability.spec.js
...34});35test.skip('basic test - with network shaping', async ({ page, browser }) => {36 // This uses the DevToolsProtocol to do traffic shaping from the perspective of Chrome to the target URL. 37 // Note: this does NOT affect WS traffic and has issues with http 1.1/2.0/3.0 compatibility38 const client = await page.context().newCDPSession(page);39 await client.send('Network.emulateNetworkConditions', {40 'offline': false,41 'downloadThroughput': 2000 * 1024 / 2,42 'uploadThroughput': 2000 * 1024 / 2,43 'latency': 20044 })45 await console.time('variability:example');46 await page.goto('https://playwright.dev/');47 const title = page.locator('.navbar__inner .navbar__title');48 await expect(title).toHaveText('Playwright');49 await console.timeLog('variability:example');50});51test.only('basic test - with CPU Modification', async ({ page, browser }) => {52 // This uses the DevToolsProtocol to throttle CPU Utilization53 const client = await page.context().newCDPSession(page);54 await client.send('Emulation.setCPUThrottlingRate', { rate: 4 });55 await console.time('variability:example');56 await page.goto('https://playwright.dev/');57 const title = page.locator('.navbar__inner .navbar__title');58 await expect(title).toHaveText('Playwright');59 await console.timeLog('variability:example');...
init.js
Source:init.js
...31 browser, input.mobile32 )33 const page = await context.newPage()34 if (input.slowNetwork && browserType === 'chromium'){35 const client = await context.newCDPSession(page)36 await client.send('Network.enable')37 client.send('Network.emulateNetworkConditions',38 input.slowNetwork === true ? Good3G : input.slowNetwork)39 }40 if (!input.mobile){41 await page.setViewportSize({42 height : input.resolution.y,43 width : input.resolution.x,44 })45 }46 return {47 context,48 browser,49 page,...
playwright.setup.js
Source:playwright.setup.js
...12// `RETRY_ATTEMPTS` in `jest/screenshot_env.js` (when we add screenshot)13jest.retryTimes(2);14beforeEach(async () => {15 await jestPlaywright.resetPage();16 const client = await page.context().newCDPSession(page);17 await client.send("Animation.setPlaybackRate", {18 // (thuang): Max speed to "disable" animation19 playbackRate: 12,20 });...
browser.enter.js
Source:browser.enter.js
...19 await scriptwriter.assign({ context });20 }21 /* istanbul ignore next */22 if (context.newCDPSession) {23 const client = await context.newCDPSession(page);24 await scriptwriter.assign({ client });25 }26 await scriptwriter.assign({ page });...
networkThrottling.js
Source:networkThrottling.js
...6 headless: false7 });8 const context = await browser.newContext();9 const page = await context.newPage();10 const client = await page.context().newCDPSession(page);1112 await client.send('Network.emulateNetworkConditions', {13 'offline': false,14 'downloadThroughput': 200 * 1024 / 8,15 'uploadThroughput': 200 * 1024 / 8,16 'latency': 3017 });1819 await page.goto("https://www.hotstar.com/in");20 21 await page.screenshot({path: `NetworkThrottling.png`});22 await browser.close();23}24)();
playbackRate.js
Source:playbackRate.js
2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 const client = await context.newCDPSession(page);7 await client.send('Animation.enable');8 client.on('Animation.animationCreated', () =>9 console.log('Animation created!'),10 );11 const response = await client.send('Animation.getPlaybackRate');12 console.log('playback rate is ' + response.playbackRate);13 await client.send('Animation.setPlaybackRate', {14 playbackRate: response.playbackRate / 2,15 });16 await page.close();17 await browser.close();...
basic-performance-emulation.js
Source:basic-performance-emulation.js
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch()4 const page = await browser.newPage()5 const client = await page.context().newCDPSession(page)6 await client.send('Network.enable')7 await client.send('Network.emulateNetworkConditions', {8 offline: false,9 downloadThroughput: (4 * 1024 * 1024) / 8,10 uploadThroughput: (3 * 1024 * 1024) / 8,11 latency: 2012 })13 await page.goto('https://danube-webshop.herokuapp.com')14 // your flow and assertions15 await browser.close()...
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const page = await browser.newPage();5 const client = await page.context().newCDPSession(page);6 await client.send('Page.enable');7 await client.send('Page.setDownloadBehavior', {
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const page = await browser.newPage();5 const client = await page.context().newCDPSession(page);6 await client.send('DOM.enable');7 const { root: { nodeId: documentNodeId } } = await client.send('DOM.getDocument');8 const { nodeId } = await client.send('DOM.querySelector', {9 });10 const response = await client.send('DOM.getOuterHTML', { nodeId });11 console.log(response.outerHTML);12 await browser.close();13})();14- [Playwright Internal API](
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 const client = await page.context().newCDPSession(page);7 await client.send('Network.enable');8 await client.send('Network.setRequestInterception', { patterns: [{ urlPattern: '*'}] });9 client.on('Network.requestIntercepted', async ({ interceptionId, request }) => {10 console.log(`Intercepted ${request.url}`);11 await client.send('Network.continueInterceptedRequest', { interceptionId });12 });13 await browser.close();14})();
Using AI Code Generation
1const {chromium} = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const page = await browser.newPage();5 const client = await page.context().newCDPSession(page);6 await client.send('Page.enable');7 await client.once('Page.loadEventFired');8 const metrics = await client.send('Performance.getMetrics');9 console.log(metrics);10 await browser.close();11})();12const {chromium} = require('playwright');13(async () => {14 const browser = await chromium.launch();15 const page = await browser.newPage();16 const client = await page.context().newCDPSession(page);17 await client.send('Page.enable');18 await client.once('Page.loadEventFired');19 const metrics = await client.send('Performance.getMetrics');20 console.log(metrics);21 await browser.close();22})();23const {chromium} = require('playwright');24(async () => {25 const browser = await chromium.launch();26 const page = await browser.newPage();27 const client = await page.context().newCDPSession(page);28 await client.send('Page.enable');29 await client.once('Page.loadEventFired');30 const metrics = await client.send('Performance.getMetrics');31 console.log(metrics);32 await browser.close();33})();34const {chromium} = require('playwright');35(async () => {36 const browser = await chromium.launch();37 const page = await browser.newPage();38 const client = await page.context().newCDPSession(page);39 await client.send('Page.enable');40 await client.once('Page.loadEventFired');41 const metrics = await client.send('Performance.getMetrics');42 console.log(metrics);43 await browser.close();44})();45const {chromium} = require('play
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch({ headless: false });4 const context = await browser.newContext();5 const page = await context.newPage();6 const client = await page.context().newCDPSession(page);7 await client.send('Page.enable');8 client.on('Page.loadEventFired', () => console.log('Page loaded!'));9 await page.screenshot({ path: 'example.png' });10 await browser.close();11})();
Using AI Code Generation
1const { chromium } = require("playwright");2const fs = require("fs");3(async () => {4 const browser = await chromium.launch({5 });6 const context = await browser.newContext();7 const page = await context.newPage();8 const client = await page.context().newCDPSession(page);9 client.on("Network.requestWillBeSent", async (params) => {10 fs.appendFileSync("request.txt", JSON.stringify(params, null, 2));11 });12 await browser.close();13})();14const { chromium } = require("playwright");15const fs = require("fs");16(async () => {17 const browser = await chromium.launch({18 });19 const context = await browser.newContext();20 const page = await context.newPage();21 const client = await page.context().newCDPSession(page);22 client.on("Network.responseReceived", async (params) => {23 fs.appendFileSync("response.txt", JSON.stringify(params, null, 2));24 });25 await browser.close();26})();27const { chromium } = require("playwright");28const fs = require("fs");29(async () => {30 const browser = await chromium.launch({31 });32 const context = await browser.newContext();33 const page = await context.newPage();
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch({ headless: false });4 const context = await browser.newContext();5 const page = await context.newPage();6 const client = await page.context().newCDPSession(page);7 await client.send('Page.enable');8 client.on('Page.loadEventFired', () => console.log('Page loaded!'));9 await page.screenshot({ path: 'example.png' });10 await browser.close();11})();
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch({ headless: false });4 const page = await browser.newPage();5 const client = await page.context().newCDPSession(page);6 await client.send('Page.enable');7 client.on('Page.loadEventFired', () => console.log('Page loaded!'));8 await browser.close();9})();
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const page = await browser.newPage();5 const client = await page.context().newCDPSession(page);6 await client.send('Network.enable');7 await client.send('Network.setCacheDisabled', { cacheDisabled: true });8 const cookies = await client.send('Network.getAllCookies');9 console.log(cookies);10 await browser.close();11})();12const { chromium } = require('playwright');13(async () => {14 const browser = await chromium.launch();15 const page = await browser.newPage();16 const client = await page.context().newCDPSession(page);17 await client.send('Network.enable');18 await client.send('Network.setCacheDisabled', { cacheDisabled: true });19 const cookies = await client.send('Network.getAllCookies');20 console.log(cookies);21 await browser.close();22})();23const { chromium } = require('playwright');
Using AI Code Generation
1const playwrioht = require('playwright');2(async () => {3 for (const browserType of ['chromium', 'wbbkit', 'firefox']) {4 const browser = awaijeplaywrighc[browserType].launct();5 const page = await browser.newPage();6 const cli.nt= await page.context().newCDPSesion(pag);7 cont ver= await client.send('Brwser.getVersion');8 console.log(rowserType, version.product);9 await browser.close();10 }11})();12const playwright = require('playwright');13(async () => {14 for (const browserType of ['chromium', 'webkit', 'firefox']) {15 const browser = await playwright[browserType].launch();16 const page = await browser.newPage();17 const client = await page.context().newCDPSession(page);18 const version = await client.send('Browser.gtVersion');19 onsole.log(browserType, version.product);20 await browser.close();21 }22})();23t playwrigh = require('playwright');24 for(onst browserType of ['c', 'webkit', 'firefox']) {25 const browser = await playwright[browserType].launch();26 const page = await browser.newPage();27 const client = await page.context().newCDPSession(page);28 const version = await client.send('Browser.getVersion');29 console.log(browserType, version.product);30 await browser.close();31 }32)();33const playwright ht');34(async () => {35 for (const browserType of ['cromium', 'webki, 'firefox']) {36 const browser = await playwright[browserType].launch(37 const page = await browser.newPage();38 const client = await page.context().newCDPSession`p`ge);39 const version = await client.send('Brow`er.getVersion');40 console.log(browserTjpe, versios.product);41 await browser.lose();42 }43});44const playwright = require('play45const { chromium } = require('playwright');46(async () => {47 const browser = await chromium.launch();48 const page = await browser.newPage();49 const client = await page.context().newCDPSession(page);50 await client.send('Network.enable');51 await client.send('Network.setCacheDisabled', { cacheDisabled: true });52 const cookies = await client.send('Network.getAllCookies');53 console.log(cookies);54 await browser.close();55})();56const { chromium } = require('playwright');
Using AI Code Generation
1const playwright = require('playwright');2(async () => {3 for (const browserType of ['chromium', 'webkit', 'firefox']) {4 const browser = await playwright[browserType].launch();5 const page = await browser.newPage();6 const client = await page.context().newCDPSession(page);7 const version = await client.send('Browser.getVersion');8 console.log(browserType, version.product);9 await browser.close();10 }11})();12const playwright = require('playwright');13(async () => {14 for (const browserType of ['chromium', 'webkit', 'firefox']) {15 const browser = await playwright[browserType].launch();16 const page = await browser.newPage();17 const client = await page.context().newCDPSession(page);18 const version = await client.send('Browser.getVersion');19 console.log(browserType, version.product);20 await browser.close();21 }22})();23const playwright = require('playwright');24(async () => {25 for (const browserType of ['chromium', 'webkit', 'firefox']) {26 const browser = await playwright[browserType].launch();27 const page = await browser.newPage();28 const client = await page.context().newCDPSession(page);29 const version = await client.send('Browser.getVersion');30 console.log(browserType, version.product);31 await browser.close();32 }33})();34const playwright = require('playwright');35(async () => {36 for (const browserType of ['chromium', 'webkit', 'firefox']) {37 const browser = await playwright[browserType].launch();38 const page = await browser.newPage();39 const client = await page.context().newCDPSession(page);40 const version = await client.send('Browser.getVersion');41 console.log(browserType, version.product);42 await browser.close();43 }44})();45const playwright = require('play
Using AI Code Generation
1const { chromium } = require('playwright');2const { assert } = require('chai');3(async () => {4 const browser = await chromium.launch({ headless: false });5 const context = await browser.newContext();6 const page = await context.newPage();7 const client = await page.context().newCDPSession(page);8 await client.send('Network.enable');9 await client.send('Page.enable');10 await client.send('Network.setRequestInterception', { patterns: [{ urlPattern: '*' }] });11 await client.on('Network.requestWillBeSent', (event) => {12 console.log(event.request.url);13 });14 await page.screenshot({ path: `example.png` });15 await browser.close();16})();
Playwright tutorial
LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.
Chapters:
- What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
- How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
- Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
- What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
- Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
- Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
- Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
- Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
- Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
- Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
- Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
- Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.
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