Test your AI Agents with the all-new Agent to Agent Testing Platform.Learn More

How to use highlightBlock method in Playwright Internal

Best JavaScript code snippet using playwright-internal

highlight.9.1.0.pack_extended.js

Source: highlight.9.1.0.pack_extended.js

1'use strict';2(function () {3    var configure, highlightBlock;4    configure = hljs.configure;5    // "extending" hljs.configure method6    hljs.configure = function _configure (options) {7        var size = options.highlightSizeThreshold;8        // added highlightSizeThreshold option to set maximum size9        // of processed string. Set to null if not a number10        hljs.highlightSizeThreshold = size === +size ? size : null;11        configure.call(this, options);12    };13    highlightBlock = hljs.highlightBlock;14    // "extending" hljs.highlightBlock method15    hljs.highlightBlock = function _highlightBlock (el) {16        var innerHTML = el.innerHTML;17        var size = hljs.highlightSizeThreshold;18        // check if highlightSizeThreshold is not set or element innerHTML19        // is less than set option highlightSizeThreshold20        if (size == null || size > innerHTML.length) {21            // proceed with hljs.highlightBlock22            highlightBlock.call(hljs, el);23        }24    };...

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  await page.highlight();7  await browser.close();8})();9const {chromium} = require('playwright');10(async () => {11  const browser = await chromium.launch();12  const context = await browser.newContext();13  const page = await context.newPage();14  await page.click('text=Get started');15  await page.highlight('text=Get started');16  await browser.close();17})();18const {chromium} = require('playwright');19(async () => {20  const browser = await chromium.launch();21  const context = await browser.newContext();22  const page = await context.newPage();23  await page.click('text=Get started');24  await page.highlight('text=Get started', {color: 'red'});25  await browser.close();26})();27const {chromium} = require('playwright');28(async () => {29  const browser = await chromium.launch();30  const context = await browser.newContext();31  const page = await context.newPage();32  await page.click('text=Get started');33  await page.highlight('text=Get started', {outline: 'dotted'});34  await browser.close();35})();36const {chromium} = require('playwright');37(async () => {

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  await page.click('text="Get started"');7  await page.waitForSelector('text="Install Playwright"');8  await page.highlight();9  await page.close();10  await context.close();11  await browser.close();12})();

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  await page.screenshot({ path: 'example.png' });7  await page.evaluate(() => {8    window.playwright.highlightBlock(document.querySelector('h1'));9  });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 context = await browser.newContext();5  const page = await context.newPage();6  await page.screenshot({ path: 'google.png' });7  await browser.close();8})();9const { chromium } = require('playwright');10(async () => {11  const browser = await chromium.launch({ headless: false });12  const context = await browser.newContext();13  const page = await context.newPage();14  await page.screenshot({ path: 'google.png' });15  await browser.close();16})();17const { chromium } = require('playwright');18(async () => {19  const browser = await chromium.launch({ headless: false });20  const context = await browser.newContext();21  const page = await context.newPage();22  await page.screenshot({ path: 'google.png' });23  await browser.close();24})();25const { chromium } = require('playwright');26(async () => {27  const browser = await chromium.launch({ headless: false });28  const context = await browser.newContext();29  const page = await context.newPage();30  await page.screenshot({ path: 'google.png' });31  await browser.close();32})();33const { chromium } = require('playwright');34(async () => {35  const browser = await chromium.launch({ headless: false });36  const context = await browser.newContext();37  const page = await context.newPage();38  await page.screenshot({ path: 'google.png' });39  await browser.close();40})();41const { chromium } = require('playwright');42(async () => {43  const browser = await chromium.launch({ headless: false });44  const context = await browser.newContext();45  const page = await context.newPage();

Using AI Code Generation

1const playwright = require('playwright');2(async () => {3    for (const browserType of BROWSER) {4        const browser = await playwright[browserType].launch();5        const page = await browser.newPage();6        await page.screenshot({ path: `example-${browserType}.png` });7        await browser.close();8    }9})();10const playwright = require('playwright');11(async () => {12    for (const browserType of BROWSER) {13        const browser = await playwright[browserType].launch();14        const page = await browser.newPage();15        await page.screenshot({ path: `example-${browserType}.png` });16        await browser.close();17    }18})();19const playwright = require('playwright');20(async () => {21    for (const browserType of BROWSER) {22        const browser = await playwright[browserType].launch();23        const page = await browser.newPage();24        await page.screenshot({ path: `example-${browserType}.png` });25        await browser.close();26    }27})();28const playwright = require('playwright');29(async () => {30    for (const browserType of BROWSER) {31        const browser = await playwright[browserType].launch();32        const page = await browser.newPage();33        await page.screenshot({ path: `example-${browserType}.png` });34        await browser.close();35    }36})();37const playwright = require('playwright');38(async () => {39    for (const browserType of BROWSER) {40        const browser = await playwright[browserType].launch();41        const page = await browser.newPage();42        await page.screenshot({ path: `example-${browserType}.png` });43        await browser.close();44    }45})();

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 element = await page.$('text=Get started');7  await element.scrollIntoViewIfNeeded();8  await element.screenshot({ path: 'element.png' });9  await page.evaluate(element => element.scrollIntoViewIfNeeded(), element);10  await page.evaluate(element => element.scrollIntoView(), element);11  await page.evaluate(element => element.scrollIntoView({block: 'center', inline: 'center'}), element);12  await page.evaluate(element => element.scrollIntoView({behavior: 'smooth', block: 'center', inline: 'center'}), element);13  await page.evaluate(element => element.scrollIntoView({behavior: 'smooth', block: 'start', inline: 'nearest'}), element);14  await page.evaluate(element => element.scrollIntoView({behavior: 'smooth', block: 'end', inline: 'nearest'}), element);15  await page.evaluate(element => element.scrollIntoView({behavior: 'smooth', block: 'end', inline: 'center'}), element);16  await page.evaluate(element => element.scrollIntoView({behavior: 'smooth', block: 'end', inline: 'end'}), element);17  await page.evaluate(element => element.scrollIntoView({behavior: 'smooth', block: 'nearest', inline: 'center'}), element);18  await page.evaluate(element => element.scrollIntoView({behavior: 'smooth', block: 'nearest', inline: 'end'}), element);19  await page.evaluate(element => element.scrollIntoView({behavior: 'smooth', block: 'nearest', inline: 'start'}), element);20  await page.evaluate(element => element.scrollIntoView({behavior: 'smooth', block: 'start', inline: 'center'}), element);21  await page.evaluate(element => element.scrollIntoView({behavior: 'smooth', block: 'start', inline: 'end'}), element);22  await page.evaluate(element => element.scrollIntoView({behavior: 'smooth', block: 'start', inline: 'start'}), element);23  await element.scrollIntoViewIfNeeded();24  await element.scrollIntoView();25  await element.scrollIntoView({block: 'center',

Using AI Code Generation

1import { chromium, webkit, firefox } from "playwright";2import { highlightBlock } from "playwright/lib/internal/inspector";3(async () => {4  const browser = await chromium.launch();5  const context = await browser.newContext();6  const page = await context.newPage();7  await page.click("text=Get started");8  await page.click("text=Docs");9  await page.click("text=API");10  await page.click("text=Page");11  await page.click("text=page.click");12  await highlightBlock(page);13  await browser.close();14})();

Using AI Code Generation

1await page.highlight();2await page.highlight({ path: 'test.js', line: 1, column: 1 });3await page.highlight({ path: 'test.js', line: 1, column: 1 }, { color: 'red' });4await page.highlight({ path: 'test.js', line: 1, column: 1 }, { color: 'red', outlineColor: 'green' });5await page.highlight({ path: 'test.js', line: 1, column: 1 }, { color: 'red', outlineColor: 'green', outlineStyle: 'dashed' });6await page.highlight({ path: 'test.js', line: 1, column: 1 }, { color: 'red', outlineColor: 'green', outlineStyle: 'dashed' }, { timeout: 5000 });7await page.highlight({ path: 'test.js', line: 1, column: 1 }, { color: 'red', outlineColor: 'green', outlineStyle: 'dashed' }, { timeout: 5000 }, { force: true });8await page.highlight({ path: 'test.js', line: 1, column: 1 }, { color: 'red', outlineColor: 'green', outlineStyle: 'dashed' }, { timeout: 5000 }, { force: true }, { name: 'highlight' });9await page.highlight({ path: 'test.js', line: 1, column: 1 }, { color: 'red', outlineColor: 'green', outlineStyle: 'dashed' }, { timeout: 5000 }, { force: true }, { name: 'highlight' }, { trace: true });10await page.highlight({ path: 'test.js', line: 1, column: 1 }, { color: 'red', outlineColor: 'green', outlineStyle

Using AI Code Generation

1import { highlightBlock } from 'playwright/lib/utils/highlighter';2const codeBlock = document.querySelector('#code');3highlightBlock(codeBlock);4import { highlightBlock } from 'playwright';5const codeBlock = document.querySelector('#code');6highlightBlock(codeBlock);

StackOverFlow community discussions

Questions

Discussion

How to run a list of test suites in a single file concurrently in jest?

Is it possible to get the selector from a locator object in playwright?

firefox browser does not start in playwright

Running Playwright in Azure Function

Jest + Playwright - Test callbacks of event-based DOM library

firefox browser does not start in playwright

Assuming you are not running test with the --runinband flag, the simple answer is yes but it depends ????

There is a pretty comprehensive GitHub issue jest#6957 that explains certain cases of when tests are run concurrently or in parallel. But it seems to depend on a lot of edge cases where jest tries its best to determine the fastest way to run the tests given the circumstances.

To my knowledge there is no way to force jest to run in parallel.

Aside

Have you considered using playwright instead of puppeteer with jest? Playwright has their own internally built testing library called @playwright/test that is used in place of jest with a similar API. This library allows for explicitly defining test groups in a single file to run in parallel (i.e. test.describe.parallel) or serially (i.e. test.describe.serial). Or even to run all tests in parallel via a config option.

// parallel
test.describe.parallel('group', () => {
  test('runs in parallel 1', async ({ page }) => {});
  test('runs in parallel 2', async ({ page }) => {});
});

// serial
test.describe.serial('group', () => {
  test('runs first', async ({ page }) => {});
  test('runs second', async ({ page }) => {});
});

https://stackoverflow.com/questions/73497773/how-to-run-a-list-of-test-suites-in-a-single-file-concurrently-in-jest

Well this is one way, but not sure if it will work for all possible locators!.

// Get a selector from a playwright locator
import { Locator } from "@playwright/test";
export function extractSelector(locator: Locator) {
    const selector = locator.toString();
    const parts = selector.split("@");
    if (parts.length !== 2) { throw Error("extractSelector: susupect that this is not a locator"); }
    if (parts[0] !== "Locator") { throw Error("extractSelector: did not find locator"); }
    return parts[1];
}

https://stackoverflow.com/questions/72044959/is-it-possible-to-get-the-selector-from-a-locator-object-in-playwright

I found the error. It was because of some missing libraries need. I discovered this when I downgraded playwright to version 1.9 and ran the the code then this was the error msg:

(node:12876) UnhandledPromiseRejectionWarning: browserType.launch: Host system is missing dependencies!

Some of the Universal C Runtime files cannot be found on the system. You can fix
that by installing Microsoft Visual C++ Redistributable for Visual Studio from:
https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads

Full list of missing libraries:
    vcruntime140.dll
    msvcp140.dll
Error
    at Object.captureStackTrace (D:\Projects\snkrs-play\node_modules\playwright\lib\utils\stackTrace.js:48:19)
    at Connection.sendMessageToServer (D:\Projects\snkrs-play\node_modules\playwright\lib\client\connection.js:69:48)
    at Proxy.<anonymous> (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:64:61)
    at D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:64:67
    at BrowserType._wrapApiCall (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:77:34)
    at BrowserType.launch (D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:55:21)
    at D:\Projects\snkrs-play\index.js:4:35
    at Object.<anonymous> (D:\Projects\snkrs-play\index.js:7:3)
    at Module._compile (internal/modules/cjs/loader.js:1063:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:12876) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:12876) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

A list of missing libraries was provided. After successful installments, firefox ran fine. I upgraded again to version 1.10 and firefox still works.

https://stackoverflow.com/questions/66984974/firefox-browser-does-not-start-in-playwright

This question is quite close to a "need more focus" question. But let's try to give it some focus:

Does Playwright has access to the cPicker object on the page? Does it has access to the window object?

Yes, you can access both cPicker and the window object inside an evaluate call.

Should I trigger the events from the HTML file itself, and in the callbacks, print in the DOM the result, in some dummy-element, and then infer from that dummy element text that the callbacks fired?

Exactly, or you can assign values to a javascript variable:

const cPicker = new ColorPicker({
  onClickOutside(e){
  },
  onInput(color){
    window['color'] = color;
  },
  onChange(color){
    window['result'] = color;
  }
})

And then

it('Should call all callbacks with correct arguments', async() => {
    await page.goto(`http://localhost:5000/tests/visual/basic.html`, {waitUntil:'load'})

    // Wait until the next frame
    await page.evaluate(() => new Promise(requestAnimationFrame))

    // Act
   
    // Assert
    const result = await page.evaluate(() => window['color']);
    // Check the value
})

https://stackoverflow.com/questions/65477895/jest-playwright-test-callbacks-of-event-based-dom-library

I found the error. It was because of some missing libraries need. I discovered this when I downgraded playwright to version 1.9 and ran the the code then this was the error msg:

(node:12876) UnhandledPromiseRejectionWarning: browserType.launch: Host system is missing dependencies!

Some of the Universal C Runtime files cannot be found on the system. You can fix
that by installing Microsoft Visual C++ Redistributable for Visual Studio from:
https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads

Full list of missing libraries:
    vcruntime140.dll
    msvcp140.dll
Error
    at Object.captureStackTrace (D:\Projects\snkrs-play\node_modules\playwright\lib\utils\stackTrace.js:48:19)
    at Connection.sendMessageToServer (D:\Projects\snkrs-play\node_modules\playwright\lib\client\connection.js:69:48)
    at Proxy.<anonymous> (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:64:61)
    at D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:64:67
    at BrowserType._wrapApiCall (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:77:34)
    at BrowserType.launch (D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:55:21)
    at D:\Projects\snkrs-play\index.js:4:35
    at Object.<anonymous> (D:\Projects\snkrs-play\index.js:7:3)
    at Module._compile (internal/modules/cjs/loader.js:1063:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:12876) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:12876) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

A list of missing libraries was provided. After successful installments, firefox ran fine. I upgraded again to version 1.10 and firefox still works.

https://stackoverflow.com/questions/66984974/firefox-browser-does-not-start-in-playwright

Blogs

Check out the latest blogs from LambdaTest on this topic:

Keeping Quality Transparency Throughout the organization

In general, software testers have a challenging job. Software testing is frequently the final significant activity undertaken prior to actually delivering a product. Since the terms “software” and “late” are nearly synonymous, it is the testers that frequently catch the ire of the whole business as they try to test the software at the end. It is the testers who are under pressure to finish faster and deem the product “release candidate” before they have had enough opportunity to be comfortable. To make matters worse, if bugs are discovered in the product after it has been released, everyone looks to the testers and says, “Why didn’t you spot those bugs?” The testers did not cause the bugs, but they must bear some of the guilt for the bugs that were disclosed.

How To Use driver.FindElement And driver.FindElements In Selenium C#

One of the essential parts when performing automated UI testing, whether using Selenium or another framework, is identifying the correct web elements the tests will interact with. However, if the web elements are not located correctly, you might get NoSuchElementException in Selenium. This would cause a false negative result because we won’t get to the actual functionality check. Instead, our test will fail simply because it failed to interact with the correct element.

10 Best Software Testing Certifications To Take In 2021

Software testing is fueling the IT sector forward by scaling up the test process and continuous product delivery. Currently, this profession is in huge demand, as it needs certified testers with expertise in automation testing. When it comes to outsourcing software testing jobs, whether it’s an IT company or an individual customer, they all look for accredited professionals. That’s why having an software testing certification has become the need of the hour for the folks interested in the test automation field. A well-known certificate issued by an authorized institute kind vouches that the certificate holder is skilled in a specific technology.

Why Agile Is Great for Your Business

Agile project management is a great alternative to traditional methods, to address the customer’s needs and the delivery of business value from the beginning of the project. This blog describes the main benefits of Agile for both the customer and the business.

How To Write End-To-End Tests Using Cypress App Actions

When I started writing tests with Cypress, I was always going to use the user interface to interact and change the application’s state when running tests.

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.