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How to use stopCSSCoverage method in Playwright Internal

Best JavaScript code snippet using playwright-internal

coverage.spec.js

...120  describe('CSSCoverage', function() {121    it('should work', async function({page, server}) {122      await page.coverage.startCSSCoverage();123      await page.goto(server.PREFIX + '/csscoverage/simple.html');124      const coverage = await page.coverage.stopCSSCoverage();125      expect(coverage.length).toBe(1);126      expect(coverage[0].url).toContain('/csscoverage/simple.html');127      expect(coverage[0].ranges).toEqual([128        {start: 1, end: 22}129      ]);130      const range = coverage[0].ranges[0];131      expect(coverage[0].text.substring(range.start, range.end)).toBe('div { color: green; }');132    });133    it('should report sourceURLs', async function({page, server}) {134      await page.coverage.startCSSCoverage();135      await page.goto(server.PREFIX + '/csscoverage/sourceurl.html');136      const coverage = await page.coverage.stopCSSCoverage();137      expect(coverage.length).toBe(1);138      expect(coverage[0].url).toBe('nicename.css');139    });140    it('should report multiple stylesheets', async function({page, server}) {141      await page.coverage.startCSSCoverage();142      await page.goto(server.PREFIX + '/csscoverage/multiple.html');143      const coverage = await page.coverage.stopCSSCoverage();144      expect(coverage.length).toBe(2);145      coverage.sort((a, b) => a.url.localeCompare(b.url));146      expect(coverage[0].url).toContain('/csscoverage/stylesheet1.css');147      expect(coverage[1].url).toContain('/csscoverage/stylesheet2.css');148    });149    it('should report stylesheets that have no coverage', async function({page, server}) {150      await page.coverage.startCSSCoverage();151      await page.goto(server.PREFIX + '/csscoverage/unused.html');152      const coverage = await page.coverage.stopCSSCoverage();153      expect(coverage.length).toBe(1);154      expect(coverage[0].url).toBe('unused.css');155      expect(coverage[0].ranges.length).toBe(0);156    });157    it('should work with media queries', async function({page, server}) {158      await page.coverage.startCSSCoverage();159      await page.goto(server.PREFIX + '/csscoverage/media.html');160      const coverage = await page.coverage.stopCSSCoverage();161      expect(coverage.length).toBe(1);162      expect(coverage[0].url).toContain('/csscoverage/media.html');163      expect(coverage[0].ranges).toEqual([164        {start: 17, end: 38}165      ]);166    });167    it('should work with complicated usecases', async function({page, server}) {168      await page.coverage.startCSSCoverage();169      await page.goto(server.PREFIX + '/csscoverage/involved.html');170      const coverage = await page.coverage.stopCSSCoverage();171      expect(JSON.stringify(coverage, null, 2).replace(/:\d{4}\//g, ':<PORT>/')).toBeGolden('csscoverage-involved.txt');172    });173    it('should ignore injected stylesheets', async function({page, server}) {174      await page.coverage.startCSSCoverage();175      await page.addStyleTag({content: 'body { margin: 10px;}'});176      // trigger style recalc177      const margin = await page.evaluate(() => window.getComputedStyle(document.body).margin);178      expect(margin).toBe('10px');179      const coverage = await page.coverage.stopCSSCoverage();180      expect(coverage.length).toBe(0);181    });182    describe('resetOnNavigation', function() {183      it('should report stylesheets across navigations', async function({page, server}) {184        await page.coverage.startCSSCoverage({resetOnNavigation: false});185        await page.goto(server.PREFIX + '/csscoverage/multiple.html');186        await page.goto(server.EMPTY_PAGE);187        const coverage = await page.coverage.stopCSSCoverage();188        expect(coverage.length).toBe(2);189      });190      it('should NOT report scripts across navigations', async function({page, server}) {191        await page.coverage.startCSSCoverage(); // Enabled by default.192        await page.goto(server.PREFIX + '/csscoverage/multiple.html');193        await page.goto(server.EMPTY_PAGE);194        const coverage = await page.coverage.stopCSSCoverage();195        expect(coverage.length).toBe(0);196      });197    });198    it('should work with a recently loaded stylesheet', async function({page, server}) {199      await page.coverage.startCSSCoverage();200      await page.evaluate(async url => {201        document.body.textContent = 'hello, world';202        const link = document.createElement('link');203        link.rel = 'stylesheet';204        link.href = url;205        document.head.appendChild(link);206        await new Promise(x => link.onload = x);207      }, server.PREFIX + '/csscoverage/stylesheet1.css');208      const coverage = await page.coverage.stopCSSCoverage();209      expect(coverage.length).toBe(1);210    });211  });...

coverage.js

Source: coverage.js

...154test.serial('CSSCoverage should work', async t => {155  const { page, server } = t.context156  await page.coverage.startCSSCoverage()157  await page.goto(server.PREFIX + '/csscoverage/simple.html')158  const coverage = await page.coverage.stopCSSCoverage()159  t.is(coverage.length, 1)160  t.true(coverage[0].url.includes('/csscoverage/simple.html'))161  t.deepEqual(coverage[0].ranges, [{ start: 1, end: 22 }])162  const range = coverage[0].ranges[0]163  t.is(164    coverage[0].text.substring(range.start, range.end),165    'div { color: green; }'166  )167})168test.serial('CSSCoverage should report sourceURLs', async t => {169  const { page, server } = t.context170  await page.coverage.startCSSCoverage()171  await page.goto(server.PREFIX + '/csscoverage/sourceurl.html')172  const coverage = await page.coverage.stopCSSCoverage()173  t.is(coverage.length, 1)174  t.is(coverage[0].url, 'nicename.css')175})176test.serial('CSSCoverage should report multiple stylesheets', async t => {177  const { page, server } = t.context178  await page.coverage.startCSSCoverage()179  await page.goto(server.PREFIX + '/csscoverage/multiple.html')180  const coverage = await page.coverage.stopCSSCoverage()181  t.is(coverage.length, 2)182  coverage.sort((a, b) => a.url.localeCompare(b.url))183  t.true(coverage[0].url.includes('/csscoverage/stylesheet1.css'))184  t.true(coverage[1].url.includes('/csscoverage/stylesheet2.css'))185})186test.serial(187  'CSSCoverage should report stylesheets that have no coverage',188  async t => {189    const { page, server } = t.context190    await page.coverage.startCSSCoverage()191    await page.goto(server.PREFIX + '/csscoverage/unused.html')192    const coverage = await page.coverage.stopCSSCoverage()193    t.is(coverage.length, 1)194    t.is(coverage[0].url, 'unused.css')195    t.is(coverage[0].ranges.length, 0)196  }197)198test.serial('CSSCoverage should work with media queries', async t => {199  const { page, server } = t.context200  await page.coverage.startCSSCoverage()201  await page.goto(server.PREFIX + '/csscoverage/media.html')202  const coverage = await page.coverage.stopCSSCoverage()203  t.is(coverage.length, 1)204  t.true(coverage[0].url.includes('/csscoverage/media.html'))205  t.deepEqual(coverage[0].ranges, [{ start: 17, end: 38 }])206})207test.serial('CSSCoverage should work with complicated usecases', async t => {208  const { page, server } = t.context209  await page.coverage.startCSSCoverage()210  await page.goto(server.PREFIX + '/csscoverage/involved.html')211  const coverage = await page.coverage.stopCSSCoverage()212  t.context.toBeGolden(213    t,214    JSON.stringify(coverage, null, 2).replace(/:\d{4}\//g, ':<PORT>/'),215    'csscoverage-involved.txt'216  )217})218test.serial('CSSCoverage should ignore injected stylesheets', async t => {219  const { page, server } = t.context220  await page.coverage.startCSSCoverage()221  await page.addStyleTag({ content: 'body { margin: 10px;}' })222  // trigger style recalc223  const margin = await page.evaluate(224    () => window.getComputedStyle(document.body).margin225  )226  t.is(margin, '10px')227  const coverage = await page.coverage.stopCSSCoverage()228  t.is(coverage.length, 0)229})230test.serial(231  'CSSCoverage - resetOnNavigation: should report stylesheets across navigations',232  async t => {233    const { page, server } = t.context234    await page.coverage.startCSSCoverage({ resetOnNavigation: false })235    await page.goto(server.PREFIX + '/csscoverage/multiple.html')236    await page.goto(server.EMPTY_PAGE)237    const coverage = await page.coverage.stopCSSCoverage()238    t.is(coverage.length, 2)239  }240)241test.serial(242  'CSSCoverage - resetOnNavigation: should NOT report scripts across navigations',243  async t => {244    const { page, server } = t.context245    await page.coverage.startCSSCoverage() // Enabled by default.246    await page.goto(server.PREFIX + '/csscoverage/multiple.html')247    await page.goto(server.EMPTY_PAGE)248    const coverage = await page.coverage.stopCSSCoverage()249    t.is(coverage.length, 0)250  }251)252test.serial(253  'CSSCoverage should work with a recently loaded stylesheet',254  async t => {255    const { page, server } = t.context256    await page.coverage.startCSSCoverage()257    await page.evaluate(async url => {258      document.body.textContent = 'hello, world'259      const link = document.createElement('link')260      link.rel = 'stylesheet'261      link.href = url262      document.head.appendChild(link)263      await new Promise(x => (link.onload = x))264    }, server.PREFIX + '/csscoverage/stylesheet1.css')265    const coverage = await page.coverage.stopCSSCoverage()266    t.is(coverage.length, 1)267  }...

setup.test.js

Source: setup.test.js

...16    )17    await page.click('#setup > div:nth-child(10) > input[type=button]')18    const [jsCoverage, cssCoverage] = await Promise.all([19        page.coverage.stopJSCoverage(),20        page.coverage.stopCSSCoverage(),21    ]);22    pti.write([...jsCoverage, ...cssCoverage], { includeHostname: true , storagePath: './.nyc_output' })23    await browser.close()24})25test("test start game click - 4 players", async () => {26    const browser = await puppeteer.launch({27    })28    const page = await browser.newPage()29    // Enable both JavaScript and CSS coverage30    await Promise.all([31        page.coverage.startJSCoverage([false, false]),32        page.coverage.startCSSCoverage()33    ]);34    await page.goto(35        'file:///Users/anirudhsharma/Documents/Semester8_College/STAD/Final%20Project/MonopolyTestFinalProj/monopoly-master1/index.html'36    )37    const [jsCoverage, cssCoverage] = await Promise.all([38        page.coverage.stopJSCoverage(),39        page.coverage.stopCSSCoverage(),40    ]);41    pti.write([...jsCoverage, ...cssCoverage], { includeHostname: true , storagePath: './.nyc_output' })42    await browser.close()...

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.coverage.startCSSCoverage();7  const cssCoverage = await page.coverage.stopCSSCoverage();8  console.log(cssCoverage);9  await browser.close();10})();11#### coverage.startJSCoverage([options])12#### coverage.stopJSCoverage()13#### coverage.startCSSCoverage([options])14#### coverage.stopCSSCoverage()

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  await page.coverage.startCSSCoverage();6  const cssCoverage = await page.coverage.stopCSSCoverage();7  console.log(cssCoverage);8  await browser.close();9})();10* **Anshul Gupta** - *Initial work* - [anshulrgupta](

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.coverage.startCSSCoverage();7  const cssCoverage = await page.coverage.stopCSSCoverage();8  console.log(cssCoverage);9  await browser.close();10})();

Using AI Code Generation

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.coverage.startCSSCoverage();7    const coverage = await page.coverage.stopCSSCoverage();8    console.log(coverage);9    await browser.close();10})();

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 [cssCoverage] = await Promise.all([7        page.coverage.startCSSCoverage(),8    ]);9    const coverage = await cssCoverage.stopCSSCoverage();10    console.log(coverage);11    await browser.close();12})();13const { chromium } = require('playwright');14(async () => {15    const browser = await chromium.launch();16    const context = await browser.newContext();17    const page = await context.newPage();18    await browser.close();19})();20const { chromium } = require('playwright');21(async () => {22    const browser = await chromium.launch({ headless: false });23    const context = await browser.newContext();24    const page = await context.newPage();25    await browser.close();26})();27const { chromium } = require('playwright');28(async () => {29    const browser = await chromium.launch({ headless: false, defaultViewport: { width: 1280, height: 720 } });30    const context = await browser.newContext();31    const page = await context.newPage();32    await browser.close();33})();34const { chromium } = require('playwright');35(async () => {36    const browser = await chromium.launch({ headless: false, defaultViewport: { width: 1280, height: 720 } });37    const context1 = await browser.newContext();38    const page1 = await context1.newPage();

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.coverage.startCSSCoverage();7  const coverage = await page.coverage.stopCSSCoverage();8  console.log(coverage);9  await browser.close();10})();

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.coverage.startCSSCoverage();7  const cssCoverage = await page.coverage.stopCSSCoverage();8  console.log(cssCoverage);9  await browser.close();10})();

Using AI Code Generation

1const { chromium } = require('playwright');2const fs = require('fs');3(async () => {4  const browser = await chromium.launch();5  const context = await browser.newContext();6  const page = await context.newPage();7  const client = await page.context().newCDPSession(page);8  await client.send('CSS.startRuleUsageTracking');9  const result = await client.send('CSS.stopRuleUsageTracking');10  fs.writeFile('cssCoverage.json', JSON.stringify(result), (error) => {11    if (error) {12      console.log(error);13    }14  });15  await browser.close();16})();17{18    {19    },20    {21    },22    {23    },24    {25    },26    {27    },28    {29    },30    {31    },32    {33    },34    {35    },36    {

Using AI Code Generation

1const playwright = require('playwright');2const { chromium } = playwright;3(async () => {4  const browser = await chromium.launch();5  const context = await browser.newContext();6  const page = await context.newPage();7  const [cssCoverage] = await Promise.all([8    page.coverage.startCSSCoverage(),9    page.click('input[name="btnK"]'),10  ]);11  const coverage = await cssCoverage.stopCSSCoverage();12  console.log(coverage);13  await browser.close();14})();15const playwright = require('playwright');16const { chromium } = playwright;17(async () => {18  const browser = await chromium.launch();19  const context = await browser.newContext();20  const page = await context.newPage();21  const [jsCoverage] = await Promise.all([22    page.coverage.startJSCoverage(),23    page.click('input[name="btnK"]'),24  ]);25  const coverage = await jsCoverage.stopJSCoverage();26  console.log(coverage);27  await browser.close();28})();29const playwright = require('playwright');30const { chromium } = playwright;31(async () => {32  const browser = await chromium.launch();33  const context = await browser.newContext();34  const page = await context.newPage();35  const [jsCoverage] = await Promise.all([36    page.coverage.startJSCoverage(),37    page.click('input[name="btnK"]'),38  ]);39  const coverage = await jsCoverage.stopJSCoverage();40  console.log(coverage);41  await browser.close();42})();43const playwright = require('playwright');44const { chromium } = playwright;45(async () => {46  const browser = await chromium.launch();47  const context = await browser.newContext();48  const page = await context.newPage();

Using AI Code Generation

1const coverage = await page.stopCSSCoverage();2console.log(coverage);3### `page.stopJSCoverage()`4const coverage = await page.stopJSCoverage();5console.log(coverage);6### `page.stopTracing()`7const trace = await page.stopTracing();8console.log(trace);9const trace = page.tracing;10console.log(trace);11### `page.waitForFileChooser()`12const fileChooser = await page.waitForFileChooser();13console.log(fileChooser);14### `page.waitForFunction(pageFunction[, options[, ...args]])`

StackOverFlow community discussions

Questions

Discussion

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

firefox browser does not start in playwright

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

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

Running Playwright in Azure Function

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

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

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

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

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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.