How to use createWorkInProgress method in Playwright Internal

Best JavaScript code snippet using playwright-internal

ReactChildFiber.js

Source: ReactChildFiber.js Github

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...13} from 'shared/​ReactWorkTags';14import {REACT_ELEMENT_TYPE} from 'shared/​ReactSymbols';15/​/​ 对于协调单一节点过程中,创建的workInProgress需要去掉他的sibling指向16function useFiber(fiber, pendingProps) {17 const clone = createWorkInProgress(fiber, pendingProps);18 clone.sibling = null;19 clone.index = 0;20 return clone;21}22export function cloneChildFibers(current, workInProgress) {23 const currentChild = workInProgress.child;24 if (!currentChild) return;25 let newChild = createWorkInProgress(currentChild, currentChild.pendingProps);26 workInProgress.child = newChild;27 newChild.return = workInProgress;28 while (currentChild.sibling) {29 currentChild = currentChild.sibling;30 newChild = newChild.sibling = createWorkInProgress(currentChild, currentChild.pendingProps);31 newChild.return = workInProgress;32 }33 newChild.sibling = null;34}35/​/​ 为了在2个方法中复用一批共用方法36/​/​ shouldTrackSideEffects标示是否标记fiber的effectTag37/​/​ 对于首次渲染,不需要标记effectTag,因为completeWork时会appendAllChildren,最后一次渲染整棵树38/​/​ 对于单次更新,需要标记更新fiber的effectTag39function ChildReconciler(shouldTrackSideEffects) {40 function createChild(returnFiber, newChild, expirationTime) {41 if (typeof newChild === 'number' || typeof newChild === 'string') {42 const created = createFiberFromText(newChild, expirationTime);43 created.return = returnFiber;44 return created;...

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ReactFiberBeginWork.js

Source: ReactFiberBeginWork.js Github

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...247 if (workInProgress.child === null) {248 return249 }250 let currentChild = workInProgress.child251 let newChild = createWorkInProgress(currentChild, currentChild.pendingProps)252 workInProgress.child = newChild253 newChild.return = workInProgress254 while (currentChild.sibling !== null) {255 currentChild = currentChild.sibling256 newChild = newChild.sibling = createWorkInProgress(257 currentChild,258 currentChild.pendingProps259 )260 newChild.return = workInProgress261 }262 newChild.sibling = null263}264export function markWorkInProgressReceivedUpdate() {265 didReceiveUpdate = true...

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vdom.js

Source: vdom.js Github

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...28}29function workLoop(deadline) {30 if (!Renderer.nextUnitOfWork) {31 /​/​一个周期内只创建一次32 Renderer.nextUnitOfWork = createWorkInProgress(Renderer.updateQueue)33 }34 while (Renderer.nextUnitOfWork && deadline.timeRemaining() > EXPIRATION_TIME) {35 Renderer.nextUnitOfWork = performUnitOfWork(Renderer.nextUnitOfWork)36 }37 if (Renderer.pendingCommit) {38 /​/​当全局 Renderer.pendingCommit 变量被负值39 commitAllwork(Renderer.pendingCommit)40 }41}42function commitAllwork(topFiber) {43 topFiber.effects.forEach(f => {44 commitWork(f)45 })46 topFiber.stateNode._rootContainerFiber = topFiber...

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react-dom.js

Source: react-dom.js Github

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...32}33function createFiber(){34 return new FiberNode();35}36function createWorkInProgress(current,pendingProps){37 let workInProgress = current.alternate;/​/​复用current.alternate38 if(!workInProgress){39 workInProgress = createFiber(current.tag,pendingProps,current.key);40 workInProgress.type = current.type;41 workInProgress.stateNode = current.stateNode;42 workInProgress.alternate = current;43 current.alternate = workInProgress;44 } else {45 workInProgress.pendingProps = pendingProps;46 workInProgress.effectTag = NoWork;47 workInProgress.firstEffect = null;48 workInProgress.lastEffect = null;49 workInProgress.nextEffect = null;50 }51 /​/​保证 current和current.alternate的updatequeue是同步的52 workInProgress.updateQueue = current.updateQueue;53 workInProgress.child = current.child;54 workInProgress.memoizedProps = current.memoizedProps;55 workInProgress.memoizedState = current.memoizedState;56 workInProgress.sibling = current.sibling;57 workInProgress.index = current.index;58 return workInProgress;59}60class ReactRoot{61 constructor(container){62 this._internalRoot = this._createRoot(container);63 }64 _createRoot(container){65 let uninitialFiber = this._createUninitialFiber(HostRoot,null,null);66 let root = {67 container,68 current: uninitialFiber,69 finishedWork:null70 };71 uninitialFiber.stateNode = root;72 return root;73 }74 _createUninitialFiber(tag,key,pendingProps){75 return createFiber(tag,key,pendingProps);76 }77 render(reactElement,callback){78 let root = this._internalRoot;79 let workInProgress = createWorkInProgress(root.current,null,);80 }81}82const ReactDOM = {83 render(reactElement,container,callback){84 isFirstRender = true;85 let root = new ReactRoot(container)86 container._reactRootContainer = root;87 isFirstRender = false;88 }89}...

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ReactFiber.dev.js

Source: ReactFiber.dev.js Github

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...28 * 根据老fiber创建新的fiber29 * @param {*} current 30 * @param {*} pendingProps 31 */​32function createWorkInProgress(current, pendingProps) {33 var workInProgress = current.alternate;34 if (!workInProgress) {35 workInProgress = createFiber(current.tag, pendingProps, current.key);36 workInProgress.type = current.type;37 workInProgress.stateNode = current.stateNode;38 workInProgress.alternate = current;39 current.alternate = workInProgress;40 } else {41 workInProgress.pendingProps = pendingProps;42 }43 workInProgress.flags = _ReactFiberFlags.NoFlags;44 workInProgress.child = null;45 workInProgress.sibling = null;46 workInProgress.updateQueue = current.updateQueue; /​/​在dom diff的过程会给fiber添加副作用...

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ReactFiber.js

Source: ReactFiber.js Github

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...21 * 根据老fiber创建新的fiber22 * @param {*} current 23 * @param {*} pendingProps 24 */​25export function createWorkInProgress(current, pendingProps) {26 let workInProgress = current.alternate;27 if (!workInProgress) {28 workInProgress = createFiber(current.tag, pendingProps, current.key);29 workInProgress.type = current.type;30 workInProgress.stateNode = current.stateNode;31 workInProgress.alternate = current;32 current.alternate = workInProgress;33 } else {34 workInProgress.pendingProps = pendingProps;35 }36 workInProgress.flags = NoFlags;37 workInProgress.child = null;38 workInProgress.sibling = null;39 workInProgress.updateQueue = current.updateQueue;...

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ReactFiberWorkLoop.js

Source: ReactFiberWorkLoop.js Github

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...17 * @param {*} fiberRoot 18 */​19function performSyncWorkOnRoot(fiberRoot) {20 workInProgressRoot = fiberRoot;21 workInProgress = createWorkInProgress(workInProgressRoot.current);22 console.log(workInProgress);23}24function markUpdateLaneFromFiberToRoot(sourceFiber) {25 let node = sourceFiber;26 let parent = node.return;27 while (parent) {28 node = parent;29 parent = parent.parent;30 }31 /​/​node其实肯定fiber树的根节点,其实就是 hostRootFiber .stateNode div#root32 return node.stateNode;...

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createWorkInProgress.js

Source: createWorkInProgress.js Github

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...3/​/​ from: HOST_ROOT,4/​/​ stateNode: Container,5/​/​ props: { children: Vnode }6/​/​ }7export function createWorkInProgress(updateQueue) {8 const updateTask = updateQueue.shift()9 if (!updateTask) return10 if (updateTask.partialState) {11 /​/​ 证明这是一个setState操作12 updateTask.stateNode._internalfiber.partialState = updateTask.partialState13 }14 const rootFiber =15 updateTask.fromTag === tag.HOST_ROOT16 ? updateTask.stateNode._rootContainerFiber17 : getRoot(updateTask.stateNode._internalfiber)18 return {19 tag: tag.HOST_ROOT,20 stateNode: updateTask.stateNode,21 props: updateTask.props || rootFiber.props,...

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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 page = await browser.newPage();5 const context = page.context();6 const workInProgress = context.createWorkInProgress();7 console.log(workInProgress);8 await browser.close();9})();

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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 page = await browser.newPage();5 const context = page.context();6 const newPage = context.createWorkInProgress(page);7 await newPage.screenshot({ path: 'work-in-progress.png' });8 await browser.close();9})();10module.exports = {11 use: {12 },13};14 at BrowserContext.newContext (/​Users/​username/​Projects/​playwright-test/​node_modules/​playwright/​lib/​client/​browserContext.js:94:15)15 at Browser.newContext (/​Users/​username/​Projects/​playwright-test/​node_modules/​playwright/​lib/​client/​browser.js:77:29)16 at BrowserContext.createWorkInProgress (/​Users/​username/​Projects/​playwright-test/​node_modules/​playwright/​lib/​client/​browserContext.js:167:23)17 at Object.<anonymous> (/​Users/​username/​Projects/​playwright-test/​test.js:9:27)18 at Module._compile (internal/​modules/​cjs/​loader.js:1137:30)19 at Object.Module._extensions..js (internal/​modules/​cjs/​loader.js:1157:10)20 at Module.load (internal/​modules/​cjs/​loader.js:985:32)21 at Function.Module._load (internal/​modules/​cjs/​loader.js:878:14)22 at Function.executeUserEntryPoint [as runMain] (internal/​modules/​run_main.js:71:12)

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Using AI Code Generation

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1const playwright = require('playwright');2const { createWorkInProgress } = require('playwright/​lib/​server/​browserContext');3(async () => {4 const browser = await playwright.chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 const workInProgressContext = createWorkInProgress(context);8 const workInProgressPage = await workInProgressContext.newPage();9 await page.screenshot({ path: 'google.png' });10 await workInProgressPage.screenshot({ path: 'youtube.png' });11 await browser.close();12})();13{14 "scripts": {15 },16 "dependencies": {17 }18}

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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 page = await browser.newPage();5 const context = page.context();6 const page2 = context.createWorkInProgress(page);7 await page2.screenshot({ path: 'page2.png' });8 await browser.close();9})();10const { chromium } = require('playwright');11(async () => {12 const browser = await chromium.launch();13 const context = await browser.newContext();14 const page = await context.newPage();15 const page2 = context.createWorkInProgress(page);16 await page2.screenshot({ path: 'page2.png' });17 await browser.close();18})();

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Using AI Code Generation

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1const { chromium } = require('playwright');2const { createWorkInProgress } = require('playwright/​lib/​server/​chromium/​crBrowser');3(async () => {4 const browserServer = await chromium.launchServer();5 const browser = await createWorkInProgress(browserServer);6 const context = await browser.newContext();7 const page = await context.newPage();8 await page.screenshot({ path: 'example.png' });9 await browser.close();10})();11const { chromium } = require('playwright');12const { createWorkInProgress } = require('playwright/​lib/​server/​chromium/​crBrowser');13(async () => {14 const browserServer = await chromium.launchServer();15 const browser = await createWorkInProgress(browserServer);16 const context = await browser.newContext();17 const page = await context.newPage();18 await page.screenshot({ path: 'example.png' });19 await browser.close();20})();21const { chromium } = require('playwright');22const { createWorkInProgress } = require('playwright/​lib/​server/​chromium/​crBrowser');23(async () => {24 const browserServer = await chromium.launchServer();25 const browser = await createWorkInProgress(browserServer);26 const context = await browser.newContext();27 const page = await context.newPage();28 await page.screenshot({ path: 'example.png' });29 await browser.close();30})();31const { chromium } = require('playwright');32const { createWorkInProgress } = require('playwright/​lib/​server/​chromium/​crBrowser');33(async () => {34 const browserServer = await chromium.launchServer();35 const browser = await createWorkInProgress(browserServer);36 const context = await browser.newContext();37 const page = await context.newPage();38 await page.screenshot({ path: 'example.png' });39 await browser.close();40})();41const { chromium } = require('playwright');42const { createWorkInProgress } = require('playwright/​lib/​server/​chromium/​crBrowser');43(async () => {

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Using AI Code Generation

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1const { createWorkInProgress } = require('playwright/​lib/​server/​browserContext');2const { BrowserContext } = require('playwright/​lib/​server/​browserContext');3const { Page } = require('playwright/​lib/​server/​page');4const { BrowserServer } = require('playwright/​lib/​server/​browserServer');5const { Browser } = require('playwright/​lib/​server/​browser');6const { helper } = require('playwright/​lib/​server/​helper');7const { BrowserType } = require('playwright/​lib/​server/​browserType');8const { BrowserContextDispatcher } = require('playwright/​lib/​server/​browserContextDispatcher');9const { PageDispatcher } = require('playwright/​lib/​server/​pageDispatcher');10const { DispatcherConnection } = require('playwright/​lib/​server/​dispatcher');11const { BrowserTypeDispatcher } = require('playwright/​lib/​server/​browserTypeDispatcher');12const { BrowserServerDispatcher } = require('playwright/​lib/​server/​browserServerDispatcher');13const { BrowserDispatcher } = require('playwright/​lib/​server/​browserDispatcher');14const { BrowserContextChannel } = require('playwright/​lib/​channels');15const { PageChannel } = require('playwright/​lib/​channels');16const { BrowserServerChannel } = require('playwright/​lib/​channels');17const { BrowserTypeChannel } = require('playwright/​lib/​channels');18const { BrowserChannel } = require('playwright/​lib/​channels');19const { BrowserContextBase } = require('playwright/​lib/​server/​browserContextBase');20const { Playwright } = require('playwright/​lib/​server/​playwright');21const { PlaywrightDispatcher } = require('playwright/​lib/​server/​playwrightDispatcher');22const { PlaywrightChannel } = require('playwright/​lib/​channels');23const { Transport } = require('playwright/​lib/​server/​transport');24const { Connection } = require('playwright/​lib/​server/​connection');25const { Events } = require('playwright/​lib/​server/​events');26const { chromium } = require('playwright');27(async () => {28 const browser = await chromium.launch();29 const context = await browser.newContext();30 const page = await context.newPage();31 const wipContext = createWorkInProgress(context);32 const wipPage = createWorkInProgress(page);33})();34const { BrowserContextBase } = require('./​browserContextBase');35const { Page } = require('./​page');36const { helper } = require('./​helper');37const { assert } = require('./​helper

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Using AI Code Generation

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1const { chromium } = require('playwright');2const { createWorkInProgress } = require('playwright/​lib/​server/​browserContext');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 const wip = createWorkInProgress(context);8 const wipPage = await wip.newPage();9 const cookies = await wipPage.context().cookies();10 console.log(cookies);11 await wip.close();12 await browser.close();13})();

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Using AI Code Generation

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1const playwright = require('playwright');2const { createWorkInProgress } = require('playwright/​lib/​server/​browserType');3const browser = await playwright.chromium.launch();4const page = await browser.newPage();5const wip = createWorkInProgress(page);6await wip.waitForSelector('title');7await wip.waitForSelector('input[name="q"]');8await wip.fill('input[name="q"]', 'Playwright');9await wip.waitForSelector('input[name="btnK"]');10await wip.click('input[name="btnK"]');11await wip.waitForNavigation();12await wip.waitForSelector('h3');13await wip.screenshot({ path: 'google.png' });14await wip.close();15await browser.close();16{17 "scripts": {18 },19 "dependencies": {20 }21}22import { chromium } from 'playwright';23import { createWorkInProgress } from 'playwright/​lib/​server/​browserType';24(async () => {25 const browser = await chromium.launch();26 const page = await browser.newPage();27 const wip = createWorkInProgress(page);28 await wip.waitForSelector('title');29 await wip.waitForSelector('input[name="q"]');30 await wip.fill('input[name="q"]', 'Playwright');31 await wip.waitForSelector('input[name="btnK"]');32 await wip.click('input[name="btnK"]');33 await wip.waitForNavigation();34 await wip.waitForSelector('h3');35 await wip.screenshot({ path: 'google.png' });36 await wip.close();37 await browser.close();38})();39{40 "compilerOptions": {

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Using AI Code Generation

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1const { createWorkInProgress } = require('playwright/​lib/​server/​browserContext');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 const workInProgress = createWorkInProgress(context);8 const newPage = await workInProgress.newPage();9 await browser.close();10})();11const { chromium } = require('playwright');12(async () => {13 const browser = await chromium.launch();14 const context = await browser.newContext();15 const page = await context.newPage();16 const workInProgress = createWorkInProgress(context);17 const newContext = await workInProgress.newContext();18 const newPage = await newContext.newPage();19 await browser.close();20})();

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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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