Best JavaScript code snippet using playwright-internal
Reconciler.js
Source:Reconciler.js  
...238    callback && callback(publicInstance, container);239    if (process.env.NODE_ENV !== 'production') {240      const injectIntoDevTools = Renderer.injectIntoDevTools;241      console.log(ReactReconciler);242      injectIntoDevTools({243        bundleType: 1, // 0 for PROD, 1 for DEV244        version: '0.1.0', // version for your renderer245        rendererPackageName: 'react-x11-renderer', // package name246        findFiberByHostInstance: instance => {247          console.log('!!! findFiberByHostInstance', instance);248          return instance._reactFiber;249          // TODO: implement this250          // not sure yet how to get ref to component or internal251          // instance from HostConfig handlers252        },253        findHostInstanceByFiber: Renderer.findHostInstance254      });255    }256  },257  unmountComponentAtNode(container) {258    const containerKey = typeof container === 'undefined' ? defaultContainer : container;259    const root = roots.get(containerKey);260    if (root) {261      Renderer.updateContainer(null, root, null, () => {262        roots.delete(container);263      });264    }265  }266  //injectIntoDevTools() {267  //  console.log('AAAAA, injectIntoDevTools()', arguments);268  //}269  // other API methods you may support, such as `renderPortal()`270};271const roots = new Map();272const emptyObject = {};273/*274if (process.env.NODE_ENV !== 'production') {275  const injectIntoDevTools = ReactReconciler.injectIntoDevTools;276  console.log(ReactReconciler);277  debugger;278  injectIntoDevTools({279    bundleType: 1, // 0 for PROD, 1 for DEV280    version: '0.1.0', // version for your renderer281    rendererPackageName: 'custom-renderer', // package name282    findFiberByHostInstance: instance => {283      // TODO: implement this284      // not sure yet how to get ref to component or internal285      // instance from HostConfig handlers286    },287    findHostInstanceByFiber: Renderer.findHostInstance288  });289}290*/...ReactART.js
Source:ReactART.js  
...110      </T>111    );112  }113}114injectIntoDevTools({115  findFiberByHostInstance: () => null,116  bundleType: __DEV__ ? 1 : 0,117  version: ReactVersion,118  rendererPackageName: 'react-art',119});120/** API */121export const ClippingRectangle = TYPES.CLIPPING_RECTANGLE;122export const Group = TYPES.GROUP;123export const Shape = TYPES.SHAPE;124export const Path = Mode.Path;...renderer.js
Source:renderer.js  
...81  let injected = false82  const injectIntoDevTools = () => {83    if (injected) return84    injected = true85    PixelRenderer.injectIntoDevTools({86      bundleType: 1, // 0 for PROD, 1 for DEV87      version: '0.0.0', // version for your renderer88      rendererPackageName: 'pixel-renderer', // package name89      findHostInstanceByFiber: PixelRenderer.findHostInstance, // host instance (root)90    })91  }92  const render = pixelCanvas => {93    injectIntoDevTools()94    pixelCanvas.root =95      pixelCanvas.root ||96      PixelRenderer.createContainer(pixelCanvas, pixelCanvas.canvas)97    PixelRenderer.updateContainer(98      pixelCanvas.props.children,99      pixelCanvas.root,100      pixelCanvas,101    )102  }103  const unmount = pixelCanvas => {104    PixelRenderer.updateContainer(null, pixelCanvas.root, pixelCanvas)105  }106  return {107    injectIntoDevTools,...render.test.js
Source:render.test.js  
1import React from "react";2import pkg from "../package.json";3import { Container, Text } from "../src/index";4import { ReactPixiFiberAsPrimaryRenderer as ReactPixiFiber } from "../src/ReactPixiFiber";5import { createRender, createUnmount, getDevToolsVersion, roots } from "../src/render";6import * as PIXI from "pixi.js";7jest.mock("../src/ReactPixiFiber", () => {8  const actual = require.requireActual("../src/ReactPixiFiber");9  return Object.assign({}, actual, {10    ReactPixiFiberAsPrimaryRenderer: Object.assign({}, actual.ReactPixiFiberAsPrimaryRenderer, {11      createContainer: jest.fn(),12      getPublicRootInstance: jest.fn(),13      injectIntoDevTools: jest.fn(),14      updateContainer: jest.fn(),15    }),16  });17});18describe("getDevToolsVersion", () => {19  it("should return React version", () => {20    expect(getDevToolsVersion()).toEqual(require("react").version);21  });22});23describe("render", () => {24  beforeEach(() => {25    jest.resetAllMocks();26  });27  const render = createRender(ReactPixiFiber);28  const app = new PIXI.Application();29  const callback = jest.fn();30  const root = app.stage;31  const element = (32    <Container>33      <Text text="Hello World!" />34    </Container>35  );36  it("calls ReactPixiFiber.createContainer", () => {37    render(element, root, callback);38    expect(ReactPixiFiber.createContainer).toHaveBeenCalledTimes(1);39    expect(ReactPixiFiber.createContainer).toHaveBeenCalledWith(app.stage);40  });41  it("calls ReactPixiFiber.updateContainer", () => {42    render(element, root, callback);43    expect(ReactPixiFiber.updateContainer).toHaveBeenCalledTimes(1);44    expect(ReactPixiFiber.updateContainer).toHaveBeenCalledWith(element, roots.get(root), undefined, callback);45  });46  it("calls ReactPixiFiber.injectIntoDevTools", () => {47    render(element, root, callback);48    expect(ReactPixiFiber.injectIntoDevTools).toHaveBeenCalledTimes(1);49    expect(ReactPixiFiber.injectIntoDevTools).toHaveBeenCalledWith(50      expect.objectContaining({51        findFiberByHostInstance: ReactPixiFiber.findFiberByHostInstance,52        bundleType: 1,53        version: getDevToolsVersion(),54        rendererPackageName: pkg.name,55      })56    );57  });58  it("does not create root if it is already present", () => {59    roots.set(root, app.stage);60    render(element, root, callback);61    expect(ReactPixiFiber.createContainer).toHaveBeenCalledTimes(0);62  });63});64describe("unmount", () => {65  beforeEach(() => {66    roots.clear();67    jest.resetAllMocks();68  });69  const unmount = createUnmount(ReactPixiFiber);70  const app = new PIXI.Application();71  const root = app.stage;72  it("calls ReactPixiFiber.updateContainer if it was mounted", () => {73    roots.set(root, app.stage);74    unmount(root);75    expect(ReactPixiFiber.updateContainer).toHaveBeenCalledTimes(1);76    expect(ReactPixiFiber.updateContainer).toHaveBeenCalledWith(null, roots.get(root));77  });78  it("does not update root if it is not present", () => {79    expect(() => unmount(root)).toThrow("ReactPixiFiber did not render into container provided");80    expect(ReactPixiFiber.updateContainer).toHaveBeenCalledTimes(0);81  });...render.js
Source:render.js  
...12    let root = roots.get(containerTag);13    if (!root) {14      root = ReactPixiFiber.createContainer(containerTag);15      roots.set(containerTag, root);16      ReactPixiFiber.injectIntoDevTools({17        findFiberByHostInstance: ReactPixiFiber.findFiberByHostInstance,18        bundleType: process.env.NODE_ENV === "development" ? 1 : 0,19        version: getDevToolsVersion(),20        rendererPackageName: "react-pixi-fiber",21      });22    }23    ReactPixiFiber.updateContainer(element, root, parentComponent, callback);24    return ReactPixiFiber.getPublicRootInstance(root);25  };26}27export function createUnmount(ReactPixiFiber) {28  return function unmount(containerTag) {29    const root = roots.get(containerTag);30    invariant(root, "ReactPixiFiber did not render into container provided");...rendererApi.js
Source:rendererApi.js  
...24        const websocket = new WebApiWebSocket(url)25        // ws.onopen = () => log('open')26        // ws.onerror = event => log('error:' + event.message)27        connectToDevTools({ websocket })28        Renderer.injectIntoDevTools({29	        findFiberByHostInstance: Renderer.findHostInstance,30	        bundleType: 1,31	        version: '0.0.1',32	        rendererPackageName: 'react-aardvark'33        })34    },35    */36    registerNativeComponent,37}...index.js
Source:index.js  
...9  global.WebSocket = global.WebSocket || require("ws");10  const { connectToDevTools } = require("react-devtools-core");11  const mergedOptions = { ...defaultOptions, ...options };12  connectToDevTools(mergedOptions);13  reconciler.injectIntoDevTools({14    bundleType: 1,15    version: details.version,16    rendererPackageName: "react-nodegui-renderer",17    findHostInstanceByFiber: reconciler.findHostInstance18  });19}20module.exports = {21  connectReactDevtools...lib.js
Source:lib.js  
1import ReactReconciler from '../react-reconciler/index.js';2import hostConfig from './hostConfig.js';3const reconciler = ReactReconciler(hostConfig);4reconciler.injectIntoDevTools({5  findFiberByHostInstance: reconciler.findFiberByHostInstance,6  bundleType: 1,7  version: '0.0.1',8  rendererPackageName: 'react-pixi',9});10export function render(rootElement, container) {11  if (!container._rootContainer) {12    container._rootContainer = reconciler.createContainer(13      container,14      false,15      false16    );17  }18  reconciler.updateContainer(...Using AI Code Generation
1const { injectIntoDevTools } = require('playwright-core/lib/server/inspector');2const { chromium } = require('playwright-core');3(async () => {4  const browser = await chromium.launch();5  const page = await browser.newPage();6  injectIntoDevTools({7  });8  await browser.close();9})();Using AI Code Generation
1const { injectIntoDevTools } = require('playwright-core/lib/server/injected/injectedScript');2injectIntoDevTools();3const { injectIntoDevTools } = require('playwright-core/lib/server/injected/injectedScript');4injectIntoDevTools();5const { injectIntoDevTools } = require('playwright-core/lib/server/injected/injectedScript');6injectIntoDevTools();7const { injectIntoDevTools } = require('playwright-core/lib/server/injected/injectedScript');8injectIntoDevTools();9const { injectIntoDevTools } = require('playwright-core/lib/server/injected/injectedScript');10injectIntoDevTools();11const { injectIntoDevTools } = require('playwright-core/lib/server/injected/injectedScript');12injectIntoDevTools();13const { injectIntoDevTools } = require('playwright-core/lib/server/injected/injectedScript');14injectIntoDevTools();15const { injectIntoDevTools } = require('playwright-core/lib/server/injected/injectedScript');16injectIntoDevTools();17const { injectIntoDevTools } = require('playwright-core/lib/server/injected/injectedScript');18injectIntoDevTools();19const { injectIntoDevTools } = require('playwright-core/lib/server/injected/injectedScript');20injectIntoDevTools();21const { injectIntoDevTools } = require('playwright-core/lib/server/injected/injectedScript');22injectIntoDevTools();23const { injectIntoDevTools } = require('playwright-core/lib/server/injected/injectedScript');24injectIntoDevTools();25const { injectIntoDevUsing AI Code Generation
1const { injectIntoDevTools } = require('playwright-core/lib/server/inspector');2const { chromium } = require('playwright-core');3const browser = await chromium.launch();4const context = await browser.newContext();5const page = await context.newPage();6await injectIntoDevTools(page);7await page.evaluate(() => {8  window.__playwright_devtools__?.open();9});10await browser.close();11const { chromium } = require('playwright-core');12const { expect } = require('chai');13const { injectIntoDevTools } = require('playwright-core/lib/server/inspector');14describe('Playwright Internal API', () => {15  it('should inject inspector into the page', async () => {16    const browser = await chromium.launch();17    const context = await browser.newContext();18    const page = await context.newPage();19    await injectIntoDevTools(page);20    await page.evaluate(() => {21      window.__playwright_devtools__?.open();22    });23    await browser.close();24  });25});Using AI Code Generation
1const { injectIntoDevTools } = require('playwright');2injectIntoDevTools({3  fetch: require('node-fetch'),4  WebSocket: require('ws'),5});6const { chromium } = require('playwright');7(async () => {8  const browser = await chromium.launch({ headless: false });9  const context = await browser.newContext();10  const page = await context.newPage();11  await page.screenshot({ path: `example.png` });12  await browser.close();13})();14const { chromium } = require('playwright');15(async () => {16  const browser = await chromium.launch({ headless: false });17  const context = await browser.newContext();18  const page = await context.newPage();19  await page.screenshot({ path: `example.png` });20  await browser.close();21})();Using AI Code Generation
1const { injectIntoDevTools } = require('@playwright/test/lib/server/injected/injectIntoDevTools');2injectIntoDevTools({3});4injectIntoDevTools({5});6injectIntoDevTools({7});8injectIntoDevTools({9});10injectIntoDevTools({11  launchOptions: {12  },13});14injectIntoDevTools({15  launchOptions: {16  },17});18injectIntoDevTools({19  launchOptions: {20  },21});22injectIntoDevTools({Using AI Code Generation
1const { injectIntoDevTools } = require('playwright-core/lib/server/injected/injectedScript');2const { context } = require('playwright-core/lib/server/injected/injectedScriptSource');3const { page } = require('playwright');4(async () => {5  const browser = await chromium.launch();6  const page = await browser.newPage();7  await injectIntoDevTools(page, context);8})();9const { injectIntoDevTools } = require('playwright-core/lib/server/injected/injectedScript');10const { context } = require('playwright-core/lib/server/injected/injectedScriptSource');11const { page } = require('playwright');12(async () => {13  const browser = await chromium.launch();14  const page = await browser.newPage();15  await injectIntoDevTools(page, context);16})();Using AI Code Generation
1const { injectIntoDevTools } = require('playwright-core/lib/server/injectedScript');2const { Page } = require('playwright-core/lib/server/page');3const { Frame } = require('playwright-core/lib/server/frame');4const { CDPSession } = require('playwright-core/lib/server/cdpsession');5const script = () => {6  const page = window['playwright'];7  const { chromium } = page;8  page.on('console', (msg) => console.log(msg.text()));9  page.on('pageerror', (e) => console.log(e));10  page.on('request', (request) => console.log(request.url()));11  page.on('response', (response) => console.log(response.url()));12  page.on('requestfinished', (request) => console.log(request.url()));13  page.on('requestfailed', (request) => console.log(request.url()));14  page.on('load', () => console.log('load'));15  page.on('domcontentloaded', () => console.log('DOMContentLoaded'));16  page.on('close', () => console.log('close'));17};18const getPage = (context) => {19  const pages = context.pages();20  if (pages.length === 0) {21    return null;22  }23  return pages[0];24};25const getFrame = (page) => {26  const frames = page.frames();27  if (frames.length === 0) {28    return null;29  }30  return frames[0];31};32const getCDPSession = (frame) => {33  return frame._session;34};35(async () => {36  const browser = await chromium.launch();37  const context = await browser.newContext();38  const page = await context.newPage();39  const pageObject = getPage(context);40  const frameObject = getFrame(pageObject);41  const cdpsessionObject = getCDPSession(frameObject);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.
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