Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use legacyRenderSubtreeIntoContainer method in Playwright Internal

Best JavaScript code snippet using playwright-internal

ReactDOMLegacy.js

Source:ReactDOMLegacy.js

...76        }77      : undefined,78  );79}80function legacyRenderSubtreeIntoContainer(81  parentComponent: ?React$Component<any, any>,82  children: ReactNodeList,83  container: Container,84  forceHydrate: boolean,85  callback: ?Function,86) {87  // TODO: Without `any` type, Flow says "Property cannot be accessed on any88  // member of intersection type." Whyyyyyy.89  let root: RootType = (container._reactRootContainer: any);90  let fiberRoot;91  if (!root) {92    // Initial mount93    // containeræReactDOM.renderçç¬¬äºä¸ªåæ°ï¼å³åºç¨æè½½çDOMèç¹ï¼94    root = container._reactRootContainer = legacyCreateRootFromDOMContainer(95      container,96      forceHydrate,97    );98    fiberRoot = root._internalRoot;99    if (typeof callback === 'function') {100      const originalCallback = callback;101      callback = function() {102        const instance = getPublicRootInstance(fiberRoot);103        originalCallback.call(instance);104      };105    }106    // Initial mount should not be batched.107    unbatchedUpdates(() => {108      updateContainer(children, fiberRoot, parentComponent, callback);109    });110  } else {111    fiberRoot = root._internalRoot;112    if (typeof callback === 'function') {113      const originalCallback = callback;114      callback = function() {115        const instance = getPublicRootInstance(fiberRoot);116        originalCallback.call(instance);117      };118    }119    // Update120    updateContainer(children, fiberRoot, parentComponent, callback);121  }122  return getPublicRootInstance(fiberRoot);123}124export function findDOMNode(125  componentOrElement: Element | ?React$Component<any, any>,126): null | Element | Text {127  if (componentOrElement == null) {128    return null;129  }130  if ((componentOrElement: any).nodeType === ELEMENT_NODE) {131    return (componentOrElement: any);132  }133  return findHostInstance(componentOrElement);134}135export function hydrate(136  element: React$Node,137  container: Container,138  callback: ?Function,139) {140  invariant(141    isValidContainer(container),142    'Target container is not a DOM element.',143  );144  // TODO: throw or warn if we couldn't hydrate?145  return legacyRenderSubtreeIntoContainer(146    null,147    element,148    container,149    true,150    callback,151  );152}153export function render(154  element: React$Element<any>,155  container: Container,156  callback: ?Function,157) {158  invariant(159    isValidContainer(container),160    'Target container is not a DOM element.',161  );162  return legacyRenderSubtreeIntoContainer(163    null,164    element,165    container,166    false,167    callback,168  );169}170export function unstable_renderSubtreeIntoContainer(171  parentComponent: React$Component<any, any>,172  element: React$Element<any>,173  containerNode: Container,174  callback: ?Function,175) {176  invariant(177    isValidContainer(containerNode),178    'Target container is not a DOM element.',179  );180  invariant(181    parentComponent != null && hasInstance(parentComponent),182    'parentComponent must be a valid React Component',183  );184  return legacyRenderSubtreeIntoContainer(185    parentComponent,186    element,187    containerNode,188    false,189    callback,190  );191}192export function unmountComponentAtNode(container: Container) {193  invariant(194    isValidContainer(container),195    'unmountComponentAtNode(...): Target container is not a DOM element.',196  );197  if (container._reactRootContainer) {198    // Unmount should not be batched.199    unbatchedUpdates(() => {200      legacyRenderSubtreeIntoContainer(null, null, container, false, () => {201        // $FlowFixMe This should probably use `delete container._reactRootContainer`202        container._reactRootContainer = null;203        unmarkContainerAsRoot(container);204      });205    });206    // If you call unmountComponentAtNode twice in quick succession, you'll207    // get `true` twice. That's probably fine?208    return true;209  } else {210    return false;211  }...

ReactDOM.render.js

Source:ReactDOM.render.js

12 ReactDOM.render: function (element, container, callback) {3    return legacyRenderSubtreeIntoContainer(null, element, container, false, callback);4  },56function legacyRenderSubtreeIntoContainer(parentComponent, children, container, forceHydrate, callback) {7  8    // åå§åæ¶9    // parentComponent null10    // children App11    // container div#app DOMåç´ 12    // forceHydrate false13    // callback ä¸è§£é1415    var root = container._reactRootContainer; //undefined16    if (!root) {17      // Initial mount18      // é¦æ¬¡æ¸²æ19      // çæä¸ä¸ª ReactRoot å®ä¾ï¼æè½½å° container ç _reactRootContainer å±æ§ä¸20      root = container._reactRootContainer = legacyCreateRootFromDOMContainer(container, forceHydrate);
...

react-dom.js

Source:react-dom.js

...16    }17  },18  // ...19  hydrate(element: React$Node, container: DOMContainer, callback: ?Function) {20    return legacyRenderSubtreeIntoContainer(21      null,22      element,23      container,24      true,25      callback26    )27  },28  render(29    element: React$Element<any>,30    container: DOMContainer,31    callback: ?Function32  ) {33    return legacyRenderSubtreeIntoContainer(34      null,35      // EXPLAIN React.CreateElement36      element,37      // document.getElementById('app')38      container,39      false,40      callback41    )42  },43  unstable_batchedUpdates: batchedUpdates,44  unstable_interactiveUpdates: interactiveUpdates,45  flushSync: flushSync46  // ...47}

index.js

Source:index.js

1import { legacyRenderSubtreeIntoContainer } from "./ReactDOMLegacy";2export function render(element, container) {3    return legacyRenderSubtreeIntoContainer(null, element, container)...

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  const element = await page.$('input[name="q"]');7  await page.legacyRenderSubtreeIntoContainer(element);8  await page.screenshot({ path: 'google.png' });9  await browser.close();10})();

Using AI Code Generation

1const playwright = require('playwright');2const { legacyRenderSubtreeIntoContainer } = playwright.internal;3const { chromium } = playwright;4(async () => {5  const browser = await chromium.launch();6  const context = await browser.newContext();7  const page = await context.newPage();8  await page.setContent('<div id="container"></div>');9  await legacyRenderSubtreeIntoContainer(page, <div>hello</div>, document.querySelector('#container'));10  await browser.close();11})();12playwright.internal.legacyRenderSubtreeIntoContainer = legacyRenderSubtreeIntoContainer;13playwright.internal.legacyRenderSubtreeIntoContainer = legacyRenderSubtreeIntoContainer;14const { chromium } = require('playwright');15(async () => {16  const browser = await chromium.launch();17  const context = await browser.newContext({ browserContextOptions: { 'user-data-dir': './mydir' } });18  const page = await context.newPage();19})();

Using AI Code Generation

1const legacyRenderSubtreeIntoContainer = require('playwright').internal.legacyRenderSubtreeIntoContainer;2const React = require('react');3const ReactDOM = require('react-dom');4const App = () => {5  return <div>Hello World</div>;6};7legacyRenderSubtreeIntoContainer(null, <App />, document.body);8const { test, expect } = require('@playwright/test');9test('should render a React app', async ({ page }) => {10  await page.goto('test.js');11  const text = await page.innerText('body');12  expect(text).toBe('Hello World');13});

Using AI Code Generation

1const playwright = require('playwright');2(async () => {3  const browser = await playwright.chromium.launch();4  const page = await browser.newPage();5  const component = await page.$('#component');6  await page.evaluate(component => {7    const { render, unmountComponentAtNode } = require('react-dom');8    const { legacyRenderSubtreeIntoContainer } = require('playwright-core/lib/server/dom');9    const { Component } = require('react');10    class MyComponent extends Component {11      render() {12        return <div>Hello {this.props.name}</div>;13      }14    }15    const container = document.createElement('div');16    component.appendChild(container);17    legacyRenderSubtreeIntoContainer(null, <MyComponent name="John" />, container);18  }, component);19  await page.screenshot({ path: 'example.png' });20  await browser.close();21})();22import { chromium } from 'playwright';23(async () => {24  const browser = await chromium.launch();25  const page = await browser.newPage();26  const component = await page.$('#component');27  await page.evaluate(component => {28    const { render, unmountComponentAtNode } = require('react-dom');29    const { legacyRenderSubtreeIntoContainer } = require('playwright-core/lib/server/dom');30    const { Component } = require('react');31    class MyComponent extends Component {32      render() {33        return <div>Hello {this.props.name}</div>;34      }35    }36    const container = document.createElement('div');37    component.appendChild(container);38    legacyRenderSubtreeIntoContainer(null, <MyComponent name="John" />, container);39  }, component);40  await page.screenshot({ path: 'example.png' });41  await browser.close();42})();

Using AI Code Generation

1const playwright = require('playwright');2const { legacyRenderSubtreeIntoContainer } = require('playwright/lib/server/dom');3const { parse } = require('playwright/lib/server/common/html');4(async () => {5  const browser = await playwright.firefox.launch();6  const context = await browser.newContext();7  const page = await context.newPage();8  const { root, shadowRoots } = await page.evaluateHandle(() => {9    const div = document.createElement('div');10    div.attachShadow({ mode: 'open' });11    document.body.appendChild(div);12    return {13    };14  });15  await legacyRenderSubtreeIntoContainer(16    parse(`<div>hello</div>`),17  );18  await page.screenshot({ path: 'example.png' });19  await browser.close();20})();21{22  "dependencies": {23  },24  "devDependencies": {},25  "scripts": {26  },27}28    at ExecutionContext._evaluateInternal (/Users/username/Projects/playwright-test/node_modules/playwright/lib/server/common/ExecutionContext.js:217:19)29    at processTicksAndRejections (internal/process/task_queues.js:97:5)30    at async ExecutionContext.evaluate (/Users/username/Projects/playwright-test/node_modules/playwright/lib/server/common/ExecutionContext.js:106:16)

Using AI Code Generation

1const { legacyRenderSubtreeIntoContainer } = require('playwright/lib/server/dom.js');2const { createContainer } = require('playwright/lib/server/dom.js');3const container = createContainer();4const container2 = createContainer();5legacyRenderSubtreeIntoContainer(container, <div>Test</div>, null);6legacyRenderSubtreeIntoContainer(container2, <div>Test2</div>, null);7const { renderSubtreeIntoContainer } = require('playwright/lib/server/dom.js');8const container = createContainer();9renderSubtreeIntoContainer(container, <div>Test</div>, null);10const { render } = require('playwright/lib/server/dom.js');11render(<div>Test</div>, null);

Using AI Code Generation

1legacyRenderSubtreeIntoContainer(null, <Component />, document.body);2legacyRenderSubtreeIntoContainer(null, <Component />, document.body);3let page;4beforeEach(async () => {5  const browser = await chromium.launch();6  const context = await browser.newContext();7  page = await context.newPage();8});9afterEach(async () => {10  await page.close();11});12let page;13beforeEach(async () => {14  const browser = await chromium.launch();15  const context = await browser.newContext();16  page = await context.newPage();17});18afterEach(async () => {19  await page.close();20});

Using AI Code Generation

1const playwright = require('playwright');2const { LegacyRoot } = playwright;3module.exports = async (page, selector, component) => {4  const handle = await page.$(selector);5  const root = new LegacyRoot(page, handle);6  await root.renderSubtreeIntoContainer(component);7};8const { test, expect } = require('@playwright/test');9const { render } = require('react-dom');10const { LegacyRoot } = require('playwright');11const legacyRenderSubtreeIntoContainer = require('./test');12test('test', async ({ page }) => {13  await legacyRenderSubtreeIntoContainer(page, '.navbar__inner', <div>Test</div>);14  const text = await page.innerText('.navbar__inner');15  expect(text).toBe('Test');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.