How to use DOMLazyTree method in Playwright Internal

Best JavaScript code snippet using playwright-internal

ReactDOMTextComponent.js

Source: ReactDOMTextComponent.js Github

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...79 if (transaction.useCreateElement) {80 var ownerDocument = hostContainerInfo._ownerDocument;81 var openingComment = ownerDocument.createComment(openingValue);82 var closingComment = ownerDocument.createComment(closingValue);83 var lazyTree = DOMLazyTree(ownerDocument.createDocumentFragment());84 DOMLazyTree.queueChild(lazyTree, DOMLazyTree(openingComment));85 if (this._stringText) {86 DOMLazyTree.queueChild(87 lazyTree,88 DOMLazyTree(ownerDocument.createTextNode(this._stringText))89 );90 }91 DOMLazyTree.queueChild(lazyTree, DOMLazyTree(closingComment));92 ReactDOMComponentTree.precacheNode(this, openingComment);93 this._closingComment = closingComment;94 return lazyTree;95 } else {96 var escapedText = escapeTextContentForBrowser(this._stringText);97 if (transaction.renderToStaticMarkup) {98 /​/​ Normally we'd wrap this between comment nodes for the reasons stated99 /​/​ above, but since this is a situation where React won't take over100 /​/​ (static pages), we can simply return the text as it is.101 return escapedText;102 }103 return (104 '<!--' + openingValue + '-->' + escapedText +105 '<!--' + closingValue + '-->'...

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DOMLazyTree.js

Source: DOMLazyTree.js Github

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...84}85function toString() {86 return this.node.nodeName;87}88function DOMLazyTree(node) {89 return {90 node: node,91 children: [],92 html: null,93 text: null,94 toString: toString95 };96}97DOMLazyTree.insertTreeBefore = insertTreeBefore;98DOMLazyTree.replaceChildWithTree = replaceChildWithTree;99DOMLazyTree.queueChild = queueChild;100DOMLazyTree.queueHTML = queueHTML;101DOMLazyTree.queueText = queueText;102module.exports = DOMLazyTree;...

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Using AI Code Generation

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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=I agree');7 await page.click('text=Sign in');8 await page.fill('#identifierId', 'myemail');9 await page.click('text=Next');10 await page.fill('#password input', 'mypassword');11 await page.click('text=Next');12 await page.click('text=Search');13 await page.click('text=Im

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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.goto('

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Using AI Code Generation

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1const {chromium} = require('playwright');2const {DOMLazyTree} = require('playwright/​lib/​protocol/​dom');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 const input = await page.$('input[name="q"]');8 await input.fill('Playwright');9 await page.click('input[name="btnK"]');10 await page.waitForNavigation();11 const result = await page.evaluate(async () => {12 const list = document.querySelectorAll('#search .g');13 const results = [];14 for (const item of list) {15 const title = item.querySelector('h3').innerText;16 const link = item.querySelector('a').href;17 results.push({title, link});18 }19 return results;20 });21 console.log(result);22 await browser.close();23})();24{25 "scripts": {26 },27 "dependencies": {28 }29}30 { title: 'Playwright - Wikipedia',31 { title: 'Playwright vs Puppeteer vs Cypress: Which is the best ...',32 { title: 'What is Playwright? - BrowserStack',33 { title: 'Playwright - npm',34 { title: 'Playwright 1.7.1 - npm',

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Using AI Code Generation

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1const { DOMLazyTree } = require('@playwright/​test/​lib/​server/​domLazyTree');2const { ElementHandle } = require('@playwright/​test/​lib/​server/​dom');3const { Frame } = require('@playwright/​test/​lib/​server/​frames');4const { Page } = require('@playwright/​test/​lib/​server/​page');5const { JSHandle } = require('@playwright/​test/​lib/​server/​jsHandle');6const { serializeResult } = require('@playwright/​test/​lib/​server/​serializers');7const { createTest } = require('@playwright/​test');8createTest('test', async ({ page }) => {9 const frame = page.mainFrame();10 const document = await frame.evaluateHandle(() => document);11 const html = await frame.evaluateHandle(() => document.documentElement);12 const body = await frame.evaluateHandle(() => document.body);13 const head = await frame.evaluateHandle(() => document.head);14 const lazyTree = new DOMLazyTree(document, html);15 lazyTree.appendChild(body);16 lazyTree.appendChild(head);17 lazyTree.appendChild(body);18 lazyTree.appendChild(head);19 const root = await lazyTree.evaluate();20 await frame.evaluate((root) => {21 document.documentElement.replaceWith(root);22 }, root);23 const rootHandle = new ElementHandle(frame, root);24 const rootFrame = new Frame(page, rootHandle);25 const rootPage = new Page(rootFrame);26 const rootElement = await rootPage.$('body');27 const rootElementHandle = await rootElement?.$('body');28 const rootElementJSHandle = rootElementHandle._elementHandle;29 const result = await rootElementJSHandle._evaluateExpression(30 );31 const serializedResult = serializeResult(result);32 console.log(serializedResult);33});34at ExecutionContext._evaluateInternal (/​Users/​abhinav/​Desktop/​playwright-test/​node_modules/​playwright-core/​lib/​server/​frames.js:125:23)35at processTicksAndRejections (internal/​process/​task_queues.js:93:5)36at async ExecutionContext.evaluate (/​Users/​abhinav/​Desktop/​playwright-test/​node_modules/​playwright-core/​lib/​server/​frames.js:109:16)37at async JSHandle._evaluateExpression (/​Users/​abhin

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Using AI Code Generation

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1const { DOMLazyTree } = require('playwright/​lib/​client/​dom.js');2const { DOMWorld } = require('playwright/​lib/​client/​domWorld.js');3const { ElementHandle } = require('playwright/​lib/​client/​elementHandle.js');4const { Page } = require('playwright/​lib/​client/​page.js');5const { createJSHandle } = require('playwright/​lib/​client/​helper.js');6const { assert } = require('playwright/​lib/​utils/​utils.js');7const domLazyTree = new DOMLazyTree();8const domWorld = new DOMWorld();9const elementHandle = new ElementHandle();10const page = new Page();11const node = new Node();12const document = new Document();13const element = new Element();14const window = new Window();15const node = new Node();16const document = new Document();17const element = new Element();18const window = new Window();19const node = new Node();20const document = new Document();21const element = new Element();22const window = new Window();23const node = new Node();24const document = new Document();25const element = new Element();26const window = new Window();27const node = new Node();28const document = new Document();29const element = new Element();30const window = new Window();31const node = new Node();32const document = new Document();33const element = new Element();34const window = new Window();35const node = new Node();36const document = new Document();37const element = new Element();38const window = new Window();

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Using AI Code Generation

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1const { DOMLazyTree } = require('@playwright/​test/​lib/​server/​dom');2const { DOM } = require('@playwright/​test/​lib/​server/​dom');3const { ElementHandle } = require('@playwright/​test/​lib/​server/​dom');4const { serializeNode } = require('@playwright/​test/​lib/​server/​dom');5const { parseHTML } = require('@playwright/​test/​lib/​server/​dom');6const { assert } = require('console');7const { createDocument } = require('@playwright/​test/​lib/​server/​dom');8const document = createDocument();9const doc = parseHTML(document, `10`);11const myDiv = doc.querySelector('.myDiv');12const mySpan = doc.querySelector('span');13const myDivHandle = new ElementHandle(myDiv);14const mySpanHandle = new ElementHandle(mySpan);15const myDivSerialized = serializeNode(myDivHandle);16const mySpanSerialized = serializeNode(mySpanHandle);17console.log(myDivSerialized);18console.log(mySpanSerialized);19const myDivDOM = new DOM(document, myDivSerialized);20const mySpanDOM = new DOM(document, mySpanSerialized);21console.log(myDivDOM);22console.log(mySpanDOM);23const myDivHandle2 = myDivDOM._document;24const mySpanHandle2 = mySpanDOM._document;25console.log(myDivHandle2);26console.log(mySpanHandle2);27const myDivSerialized2 = serializeNode(myDivHandle2);28const mySpanSerialized2 = serializeNode(mySpanHandle2);29console.log(myDivSerialized2);30console.log(mySpanSerialized2);31const myDivDOM2 = new DOM(document, myDivSerialized2);32const mySpanDOM2 = new DOM(document, mySpanSerialized2);33console.log(myDivDOM2);34console.log(mySpanDOM2);35console.log(myDivDOM2._document);36console.log(mySpanDOM2._document);37const myDivHandle3 = myDivDOM2._document;

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Using AI Code Generation

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1const { DOM } = require('playwright');2const { parseHTML } = DOM;3const { document } = parseHTML('<html><body><div id="container"></​div></​body></​html>');4const container = document.getElementById('container');5const { DOM } = require('playwright');6const { parseHTML } = DOM;7const { document } = parseHTML('<html><body><div id="container"></​div></​body></​html>');8const container = document.getElementById('container');9const { DOM } = require('playwright');10const { parseHTML } = DOM;11const { document } = parseHTML('<html><body><div id="container"></​div></​body></​html>');12const container = document.getElementById('container');13const { DOM } = require('playwright');14const { parseHTML } = DOM;15const { document } = parseHTML('<html><body><div id="container"></​div></​body></​html>');16const container = document.getElementById('container');17const { DOM } = require('playwright');18const { parseHTML } = DOM;19const { document } = parseHTML('<html><body><div id="container"></​div></​body></​html>');20const container = document.getElementById('container');21const { DOM } = require('playwright');22const { parseHTML } = DOM;23const { document } = parseHTML('<html><body><div id="container"></​div></​body></​html>');24const container = document.getElementById('container');25const { DOM } = require('playwright');26const { parseHTML } = DOM;27const { document } = parseHTML('<html><body><div id="container"></​div></​body></​html>');28const container = document.getElementById('container');29const { DOM } = require('playwright');30const { parseHTML } = DOM;31const { document } = parseHTML('<html><body><div id="container"></​div></​body></​html>');32const container = document.getElementById('container');

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Using AI Code Generation

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1const {chromium} = require('playwright');2const {DOMLazyTree} = require('playwright/​lib/​internal/​dom.js');3(async () => {4 const browser = await chromium.launch();5 const page = await browser.newPage();6 const html = await page.evaluate(() => document.body.innerHTML);7 console.log(html);8 const div = DOMLazyTree.createElement(document, 'div', null, null);9 DOMLazyTree.appendChild(document.body, div);10 await page.screenshot({path: 'test.png'});11 await browser.close();12})();13const {chromium} = require('playwright');14const {DOMLazyTree} = require('playwright/​lib/​internal/​dom.js');15(async () => {16 const browser = await chromium.launch();17 const page = await browser.newPage();18 const html = await page.evaluate(() => document.body.innerHTML);19 console.log(html);20 const div = DOMLazyTree.createElement(document, 'div', null, null);21 DOMLazyTree.appendChild(document.body, div);22 await page.screenshot({path: 'test.png'});23 await browser.close();24})();

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Using AI Code Generation

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1const { DOMLazyTree } = require('@playwright/​test/​lib/​server/​domLazyTree');2const { document } = require('@playwright/​test/​lib/​server/​dom');3const newElement = document.createElement('p');4newElement.innerText = 'This is a test';5const newDOMLazyTree = new DOMLazyTree();6newDOMLazyTree.appendChild(newElement);7const html = newDOMLazyTree.innerHTMLOf();8console.log(html);9const { DOMLazyTree } = require('@playwright/​test/​lib/​server/​domLazyTree');10const { document } = require('@playwright/​test/​lib/​server/​dom');11const newElement = document.createElement('p');12newElement.innerText = 'This is a test';13const newDOMLazyTree = new DOMLazyTree();14newDOMLazyTree.appendChild(newElement);15const html = newDOMLazyTree.outerHTMLOf();16console.log(html);17const { DOMLazyTree } = require('@playwright/​test/​lib/​server/​domLazyTree');18const { document } = require('@playwright/​test/​lib/​server/​dom');19const newElement = document.createElement('p');20newElement.innerText = 'This is a test';21const newDOMLazyTree = new DOMLazyTree();

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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

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

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