How to use handleWindowError method in Playwright Internal

Best JavaScript code snippet using playwright-internal

base.js

Source:base.js Github

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...73 let event = true74 while (event) {75 event = loadError.shift()76 if (event) {77 handleWindowError(event)78 }79 }80 }81 window.removeEventListener('error', window.handleLoadError, true)82}83const bindGlobalError = () => {84 window.addEventListener('error', handleWindowError, true)85 window.addEventListener('unhandledrejection', event => {86 const reason = event.reason87 reportError(reason)88 })89}90const getCntp = () => {91 return document.body.attributes['mg-stat-page'].value...

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InvalidEventListeners-test.js

Source:InvalidEventListeners-test.js Github

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...31 'Expected `onClick` listener to be a function, instead got a value of `string` type.',32 );33 spyOnProd(console, 'error');34 const uncaughtErrors = [];35 function handleWindowError(e) {36 uncaughtErrors.push(e.error);37 }38 window.addEventListener('error', handleWindowError);39 try {40 node.dispatchEvent(41 new MouseEvent('click', {42 bubbles: true,43 }),44 );45 } finally {46 window.removeEventListener('error', handleWindowError);47 }48 expect(uncaughtErrors.length).toBe(1);49 expect(uncaughtErrors[0]).toEqual(...

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before.js

Source:before.js Github

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1// A file to load before everything else, for testing modifications made before React even loads.2function captureTrace () {3 let err;4 try {5 throw Error("Capturing Trace");6 } catch (caughtErr) {7 err = caughtErr;8 }9 return err;10}11// This code listens for addEventListener calls on window12// This seems to only catch the constant error handling listeners from ReactDOM (search for `handleWindowError` and look around there to see what I mean)13let _addEventListener = window.addEventListener.bind(window);14window.addEventListener = function (...args) {15 let err = captureTrace();16 if (args[1].name !== "handleWindowError") {17 console.log('addEventListener', err, ...args);18 }19 return _addEventListener(...args);20};21window.addEventListener.toString = function () {22 console.log('[INFO] window.addEventListener.toString() called!');23 return _addEventListener.toString();24};25/*let _Map = Map;26Map = function (...args) {27 let err = captureTrace();28 //console.log("Map constructor", err, ...args);29 return new _Map(...args);30};31Map.toString = _Map.toString.bind(_Map);*/...

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Using AI Code Generation

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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 await page.evaluate(() => {7 throw new Error('this is a test');8 });9 await browser.close();10})();

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Using AI Code Generation

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1const playwright = require('playwright');2(async () => {3 const browser = await playwright['chromium'].launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.evaluate(() => {7 throw new Error('Example error');8 });9 await browser.close();10})();11 at processTicksAndRejections (internal/process/task_queues.js:97:5)12 at processTicksAndRejections (internal/process/task_queues.js:97:5)

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Using AI Code Generation

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1const { webkit, devices } = require('playwright');2const iPhone = devices['iPhone 6'];3(async () => {4 const browser = await webkit.launch();5 const context = await browser.newContext({6 recordVideo: {7 },8 });9 const page = await context.newPage();10 await page.screenshot({ path: 'google.png' });11 await browser.close();12})();

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Using AI Code Generation

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1const playwright = require('playwright');2(async () => {3 for (const browserType of BROWSER) {4 const browser = await playwright[browserType].launch();5 const context = await browser.newContext();6 context._options.handleWindowError = true;7 const page = await context.newPage();8 await page.evaluate(() => {9 setTimeout(() => {10 throw new Error('this is a test error');11 }, 3000);12 });13 }14})();

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Using AI Code Generation

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1const playwright = require('playwright');2(async () => {3 const browser = await playwright['chromium'].launch();4 const page = await browser.newPage();5 await page.evaluate(() => {6 throw new Error('this is an error');7 });8 await browser.close();9})();10const playwright = require('playwright');11(async () => {12 const browser = await playwright['chromium'].launch();13 const page = await browser.newPage();14 await page.evaluate(() => {15 throw new Error('this is an error');16 });17 await browser.close();18})();19const playwright = require('playwright');20(async () => {21 const browser = await playwright['chromium'].launch();22 const page = await browser.newPage();23 await page.evaluate(() => {24 throw new Error('this is an error');25 });26 await browser.close();27})();28const playwright = require('playwright');29(async () => {30 const browser = await playwright['chromium'].launch();31 const page = await browser.newPage();32 await page.evaluate(() => {33 throw new Error('this is an error');34 });35 await browser.close();36})();37const playwright = require('playwright');38(async () => {39 const browser = await playwright['chromium'].launch();40 const page = await browser.newPage();41 await page.evaluate(()

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Using AI Code Generation

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1const { chromium } = require('playwright');2const { handleWindowError } = require('playwright/lib/internal/stackTrace');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 page.on('pageerror', async (err) => {8 console.log(await handleWindowError(page, err));9 });10 await page.evaluate(() => { throw new Error('Error in page'); });11 await browser.close();12})();13const { chromium } = require('playwright');14const { handleRequestFailure } = require('playwright/lib/internal/stackTrace');15(async () => {16 const browser = await chromium.launch();17 const context = await browser.newContext();18 const page = await context.newPage();19 page.on('requestfailed', async (req) => {20 console.log(await handleRequestFailure(page, req));21 });22 await browser.close();23})();24const { chromium } = require('playwright');25const { handleRequestFinished } = require('playwright/lib/internal/stackTrace');26(async () => {27 const browser = await chromium.launch();28 const context = await browser.newContext();29 const page = await context.newPage();30 page.on('requestfinished', async (req) => {31 console.log(await handleRequestFinished(page, req));32 });33 await browser.close();34})();35const { chromium } = require('playwright');36const { handleRequest

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Using AI Code Generation

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1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch({ headless: false, slowMo: 50 });4 const context = await browser.newContext();5 await context.exposeFunction('onError', (error) => {6 console.log('error', error);7 });8 await context.addInitScript(() => {9 window.addEventListener('error', event => {10 window.onError(event.error);11 });12 });13 const page = await context.newPage();14 await page.evaluate(() => {15 console.log(a);16 });17 await browser.close();18})();19## Method 2: Using the `on()` method20const { chromium } = require('playwright');21(async () => {22 const browser = await chromium.launch({ headless: false, slowMo: 50 });23 const context = await browser.newContext();24 const page = await context.newPage();25 await page.on('pageerror', error => {26 console.log('error', error);27 });28 await page.evaluate(() => {29 console.log(a);30 });31 await browser.close();32})();33const { chromium } = require('playwright');34(async () => {35 const browser = await chromium.launch({ headless: false, slowMo: 50 });36 const context = await browser.newContext();37 const page = await context.newPage();38 page.on('pageerror', error => {39 console.log('error', error);40 });41 await page.evaluate(() => {42 console.log(a);43 });44 await browser.close();45})();46const { chromium } = require('playwright');

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Using AI Code Generation

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1const { chromium } = require('playwright');2const { InternalApi } = require('playwright/lib/internal/api');3const { handleWindowError } = require('playwright/lib/internal/handleWindowError');4(async () => {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 const page = await context.newPage();8 await page.exposeFunction("__playwright__internal__handleWindowError", handleWindowError);9 await page.evaluate(() => window.addEventListener("error", event => {10 event.preventDefault();11 event.stopImmediatePropagation();12 window.__playwright__internal__handleWindowError(event.error);13 }));14 await page.click('text=Sign in');15 const error = await InternalApi.evaluateHandleInUtility(page, ({page}) => page.__error);16 console.log(await error.jsonValue());17 await browser.close();18})();19### `handleWindowError(error)`

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Using AI Code Generation

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1const { PlaywrightInternalError } = require('playwright-core/lib/errors');2const { handleWindowError } = new PlaywrightInternalError();3const { PlaywrightInternalError } = require('playwright-core/lib/errors');4const { handleWindowError } = new PlaywrightInternalError();5const { PlaywrightInternalError } = require('playwright-core/lib/errors');6const { handleWindowError } = new PlaywrightInternalError();7const { PlaywrightInternalError } = require('playwright-core/lib/errors');8const { handleWindowError } = new PlaywrightInternalError();9const { PlaywrightInternalError } = require('playwright-core/lib/errors');10const { handleWindowError } = new PlaywrightInternalError();11const { PlaywrightInternalError } = require('playwright-core/lib/errors');12const { handleWindowError } = new PlaywrightInternalError();13const { PlaywrightInternalError } = require('playwright-core/lib/errors');14const { handleWindowError } = new PlaywrightInternalError();15const { PlaywrightInternalError } = require('playwright-core/lib/errors');16const { handleWindowError } = new PlaywrightInternalError();17const { PlaywrightInternalError } = require('playwright-core/lib/errors');18const { handleWindowError } = new PlaywrightInternalError();19const { PlaywrightInternalError } = require('playwright-core/lib/errors');20const { handleWindowError } = new PlaywrightInternalError();21const { PlaywrightInternalError } = require('playwright-core/lib/errors');22const { handleWindowError } = new PlaywrightInternalError();23const { PlaywrightInternalError } = require('playwright

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Using AI Code Generation

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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 page.on("pageerror", (err) => {7 console.log("error", err);8 });9 await page.click("#fake");10 await browser.close();11})();

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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:

  1. 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.
  2. 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.
  3. 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.
  4. 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.
  5. Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
  6. 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.
  7. 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.
  8. 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.
  9. 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.
  10. 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.
  11. 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.
  12. 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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