How to use mergeLanes method in Playwright Internal

Best JavaScript code snippet using playwright-internal

ReactFiberNewContext.new.js

Source: ReactFiberNewContext.new.js Github

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...140 let node = parent;141 while (node !== null) {142 const alternate = node.alternate;143 if (!isSubsetOfLanes(node.childLanes, renderLanes)) {144 node.childLanes = mergeLanes(node.childLanes, renderLanes);145 if (alternate !== null) {146 alternate.childLanes = mergeLanes(alternate.childLanes, renderLanes);147 }148 } else if (149 alternate !== null &&150 !isSubsetOfLanes(alternate.childLanes, renderLanes)151 ) {152 alternate.childLanes = mergeLanes(alternate.childLanes, renderLanes);153 } else {154 /​/​ Neither alternate was updated, which means the rest of the155 /​/​ ancestor path already has sufficient priority.156 break;157 }158 node = node.return;159 }160}161export function propagateContextChange(162 workInProgress: Fiber,163 context: ReactContext<mixed>,164 changedBits: number,165 renderLanes: Lanes,166): void {167 let fiber = workInProgress.child;168 if (fiber !== null) {169 /​/​ Set the return pointer of the child to the work-in-progress fiber.170 fiber.return = workInProgress;171 }172 while (fiber !== null) {173 let nextFiber;174 /​/​ Visit this fiber.175 const list = fiber.dependencies_new;176 if (list !== null) {177 nextFiber = fiber.child;178 let dependency = list.firstContext;179 while (dependency !== null) {180 /​/​ Check if the context matches.181 if (182 dependency.context === context &&183 (dependency.observedBits & changedBits) !== 0184 ) {185 /​/​ Match! Schedule an update on this fiber.186 if (fiber.tag === ClassComponent) {187 /​/​ Schedule a force update on the work-in-progress.188 const update = createUpdate(189 NoTimestamp,190 pickArbitraryLane(renderLanes),191 null,192 );193 update.tag = ForceUpdate;194 /​/​ TODO: Because we don't have a work-in-progress, this will add the195 /​/​ update to the current fiber, too, which means it will persist even if196 /​/​ this render is thrown away. Since it's a race condition, not sure it's197 /​/​ worth fixing.198 enqueueUpdate(fiber, update);199 }200 fiber.lanes = mergeLanes(fiber.lanes, renderLanes);201 const alternate = fiber.alternate;202 if (alternate !== null) {203 alternate.lanes = mergeLanes(alternate.lanes, renderLanes);204 }205 scheduleWorkOnParentPath(fiber.return, renderLanes);206 /​/​ Mark the updated lanes on the list, too.207 list.lanes = mergeLanes(list.lanes, renderLanes);208 /​/​ Since we already found a match, we can stop traversing the209 /​/​ dependency list.210 break;211 }212 dependency = dependency.next;213 }214 } else if (fiber.tag === ContextProvider) {215 /​/​ Don't scan deeper if this is a matching provider216 nextFiber = fiber.type === workInProgress.type ? null : fiber.child;217 } else if (218 enableSuspenseServerRenderer &&219 fiber.tag === DehydratedFragment220 ) {221 /​/​ If a dehydrated suspense bounudary is in this subtree, we don't know222 /​/​ if it will have any context consumers in it. The best we can do is223 /​/​ mark it as having updates.224 const parentSuspense = fiber.return;225 invariant(226 parentSuspense !== null,227 'We just came from a parent so we must have had a parent. This is a bug in React.',228 );229 parentSuspense.lanes = mergeLanes(parentSuspense.lanes, renderLanes);230 const alternate = parentSuspense.alternate;231 if (alternate !== null) {232 alternate.lanes = mergeLanes(alternate.lanes, renderLanes);233 }234 /​/​ This is intentionally passing this fiber as the parent235 /​/​ because we want to schedule this fiber as having work236 /​/​ on its children. We'll use the childLanes on237 /​/​ this fiber to indicate that a context has changed.238 scheduleWorkOnParentPath(parentSuspense, renderLanes);239 nextFiber = fiber.sibling;240 } else {241 /​/​ Traverse down.242 nextFiber = fiber.child;243 }244 if (nextFiber !== null) {245 /​/​ Set the return pointer of the child to the work-in-progress fiber.246 nextFiber.return = fiber;...

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ReactFiberNewContext.old.js

Source: ReactFiberNewContext.old.js Github

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...68 var node = parent;69 while (node !== null) {70 var alternate = node.alternate;71 if (!isSubsetOfLanes(node.childLanes, renderLanes)) {72 node.childLanes = mergeLanes(node.childLanes, renderLanes);73 if (alternate !== null) {74 alternate.childLanes = mergeLanes(alternate.childLanes, renderLanes);75 }76 } else if (alternate !== null && !isSubsetOfLanes(alternate.childLanes, renderLanes)) {77 alternate.childLanes = mergeLanes(alternate.childLanes, renderLanes);78 } else {79 /​/​ Neither alternate was updated, which means the rest of the80 /​/​ ancestor path already has sufficient priority.81 break;82 }83 node = node.return;84 }85 }86 function propagateContextChange(workInProgress, context, changedBits, renderLanes) {87 var fiber = workInProgress.child;88 if (fiber !== null) {89 /​/​ Set the return pointer of the child to the work-in-progress fiber.90 fiber.return = workInProgress;91 }92 while (fiber !== null) {93 var nextFiber = void 0; /​/​ Visit this fiber.94 var list = fiber.dependencies;95 if (list !== null) {96 nextFiber = fiber.child;97 var dependency = list.firstContext;98 while (dependency !== null) {99 /​/​ Check if the context matches.100 if (dependency.context === context && (dependency.observedBits & changedBits) !== 0) {101 /​/​ Match! Schedule an update on this fiber.102 if (fiber.tag === ClassComponent) {103 /​/​ Schedule a force update on the work-in-progress.104 var update = createUpdate(NoTimestamp, pickArbitraryLane(renderLanes));105 update.tag = ForceUpdate; /​/​ TODO: Because we don't have a work-in-progress, this will add the106 /​/​ update to the current fiber, too, which means it will persist even if107 /​/​ this render is thrown away. Since it's a race condition, not sure it's108 /​/​ worth fixing.109 enqueueUpdate(fiber, update);110 }111 fiber.lanes = mergeLanes(fiber.lanes, renderLanes);112 var alternate = fiber.alternate;113 if (alternate !== null) {114 alternate.lanes = mergeLanes(alternate.lanes, renderLanes);115 }116 scheduleWorkOnParentPath(fiber.return, renderLanes); /​/​ Mark the updated lanes on the list, too.117 list.lanes = mergeLanes(list.lanes, renderLanes); /​/​ Since we already found a match, we can stop traversing the118 /​/​ dependency list.119 break;120 }121 dependency = dependency.next;122 }123 } else if (fiber.tag === ContextProvider) {124 /​/​ Don't scan deeper if this is a matching provider125 nextFiber = fiber.type === workInProgress.type ? null : fiber.child;126 } else if ( fiber.tag === DehydratedFragment) {127 /​/​ If a dehydrated suspense boundary is in this subtree, we don't know128 /​/​ if it will have any context consumers in it. The best we can do is129 /​/​ mark it as having updates.130 var parentSuspense = fiber.return;131 if (!(parentSuspense !== null)) {132 {133 throw Error( "We just came from a parent so we must have had a parent. This is a bug in React." );134 }135 }136 parentSuspense.lanes = mergeLanes(parentSuspense.lanes, renderLanes);137 var _alternate = parentSuspense.alternate;138 if (_alternate !== null) {139 _alternate.lanes = mergeLanes(_alternate.lanes, renderLanes);140 } /​/​ This is intentionally passing this fiber as the parent141 /​/​ because we want to schedule this fiber as having work142 /​/​ on its children. We'll use the childLanes on143 /​/​ this fiber to indicate that a context has changed.144 scheduleWorkOnParentPath(parentSuspense, renderLanes);145 nextFiber = fiber.sibling;146 } else {147 /​/​ Traverse down.148 nextFiber = fiber.child;149 }150 if (nextFiber !== null) {151 /​/​ Set the return pointer of the child to the work-in-progress fiber.152 nextFiber.return = fiber;153 } else {...

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ReactFiberCompleteWork.js

Source: ReactFiberCompleteWork.js Github

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...62 let subtreeFlags = NoFlags;63 if(!didBailout) {64 let child = completedWork.child;65 while(child !== null) {66 newChildLanes = mergeLanes(67 newChildLanes,68 mergeLanes(child.lanes, child.childLanes)69 );70 subtreeFlags |= child.subtreeFlags;71 subtreeFlags |= child.flags;72 child = child.sibling;73 completedWork.subtreeFlags |= subtreeFlags;74 }75 } else {76 let child = completedWork.child;77 while (child !== null) {78 newChildLanes = mergeLanes(79 newChildLanes,80 mergeLanes(child.lanes, child.childLanes),81 );82 subtreeFlags |= child.subtreeFlags & StaticMask;83 subtreeFlags |= child.flags & StaticMask;84 child = child.sibling;85 }86 completedWork.subtreeFlags |= subtreeFlags;87 }88 completedWork.childLanes = newChildLanes;89 return didBailout;90}91export function completeWork(current, workInProgress, renderLanes) {92 const newProps = workInProgress.pendingProps;93 switch(workInProgress.tag) {94 case HostRoot: {...

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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.fill('input[name="q"]', 'Playwright');7 await page.keyboard.press('Enter');8 await page.waitForNavigation();9 await page.close();10 await context.close();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 page.fill('input[name="q"]', 'Playwright');19 await page.keyboard.press('Enter');20 await page.waitForNavigation();21 await page.close();22 await context.close();23 await browser.close();24})();25const { chromium } = require('playwright');26(async () => {27 const browser = await chromium.launch();28 const context = await browser.newContext();29 const page = await context.newPage();30 await page.fill('input[name="q"]', 'Playwright');31 await page.keyboard.press('Enter');32 await page.waitForNavigation();33 await page.close();34 await context.close();35 await browser.close();36})();37const { chromium } = require('playwright');38(async () => {39 const browser = await chromium.launch();40 const context = await browser.newContext();41 const page = await context.newPage();42 await page.fill('input[name="q"]', 'Playwright');43 await page.keyboard.press('Enter');44 await page.waitForNavigation();45 await page.close();46 await context.close();47 await browser.close();48})();49const { chromium } = require('playwright');50(async () => {51 const browser = await chromium.launch();52 const context = await browser.newContext();53 const page = await context.newPage();

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Using AI Code Generation

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

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Using AI Code Generation

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1const { mergeLanes } = require('playwright/​lib/​server/​chromium/​crNetworkManager');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 response = request.response();8 mergeLanes(response, response2);9 await browser.close();10})();

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Using AI Code Generation

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1const { mergeLanes } = require('playwright/​lib/​server/​frames');2const { mergeLanes } = require('playwright/​lib/​server/​frames');3const { mergeLanes } = require('playwright/​lib/​server/​frames');4const { mergeLanes } = require('playwright/​lib/​server/​frames');5const { mergeLanes } = require('playwright/​lib/​server/​frames');6const { mergeLanes } = require('playwright/​lib/​server/​frames');7const { mergeLanes } = require('playwright/​lib/​server/​frames');8const { mergeLanes } = require('playwright/​lib/​server/​frames');9const { mergeLanes } = require('playwright/​lib/​server/​frames');10const { mergeLanes } = require('playwright/​lib/​server/​frames');

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Using AI Code Generation

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1const { mergeLanes } = require('playwright/​lib/​utils/​mergeLanes');2const { mergeLanes } = require('playwright/​lib/​utils/​mergeLanes');3];4console.log(mergeLanes(lanes));5const { mergeLanes } = require('playwright/​lib/​utils/​mergeLanes');6];7console.log(mergeLanes(lanes));8const { mergeLanes } = require('playwright/​lib/​utils/​mergeLanes');9];10console.log(mergeLanes(lanes));11const { mergeLanes } = require('playwright/​lib/​utils/​mergeLanes');

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Using AI Code Generation

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1const { mergeLanes } = require('playwright/​lib/​frames');2const frames = [frame1, frame2, frame3];3mergeLanes(frames);4function mergeLanes(frames) {5 const lanes = [];6 for (const frame of frames) {7 const frameLanes = frame._page._frameManager._lanes;8 for (const lane of frameLanes) {9 if (lane.frames.has(frame))10 lanes.push(lane);11 }12 }13 for (let i = 0; i < lanes.length - 1; i++)14 lanes[i].merge(lanes[i + 1]);15}16const { mergeLanes } = require('playwright/​lib/​frames');17const frames = [frame1, frame2, frame3];18mergeLanes(frames);19const { mergeLanes } = require('playwright/​lib/​frames');20const frames = [frame1, frame2, frame3];21mergeLanes(frames);

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Using AI Code Generation

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1const { mergeLanes } = require('playwright/​lib/​internal/​trace/​recorder/​lanes');2 {3 {4 action: {5 },6 },7 {8 action: {9 selector: '#navbar > nav > div > div:nth-child(2) > a',10 },11 },12 },13 {14 {15 action: {16 selector: '#navbar > nav > div > div:nth-child(1) > a',17 },18 },19 {20 action: {21 selector: '#navbar > nav > div > div:nth-child(2) > a',22 },23 },24 },25];26const mergedLanes = mergeLanes(lanes);27console.log(JSON.stringify(mergedLanes, null, 2));

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Using AI Code Generation

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1const { mergeLanes } = require('playwright-core/​lib/​server/​supplements/​recorder/​recorderApp');2mergeLanes('path/​to/​recording.json')3const { mergeLanes } = require('playwright-cli/​lib/​server/​supplements/​recorder/​recorderApp');4mergeLanes('path/​to/​recording.json')5import { mergeLanes } from 'playwright-test/​lib/​server/​supplements/​recorder/​recorderApp';6mergeLanes('path/​to/​recording.json')7const { mergeLanes } = require('playwright-test/​lib/​server/​supplements/​recorder/​recorderApp');8mergeLanes('path/​to/​recording.json')9import { mergeLanes } from 'playwright-test/​lib/​server/​supplements/​recorder/​recorderApp';10mergeLanes('path/​to/​recording.json')11const { mergeLanes } = require('playwright-test/​lib/​server/​supplements/​recorder/​recorderApp');12mergeLanes('path/​to/​recording.json')13import { mergeLanes } from 'playwright-test/​lib/​server/​supplements/​recorder/​recorderApp';14mergeLanes('path/​to/​recording.json')15const { mergeLanes } = require('playwright-test/​lib/​server/​supplements/​recorder/​recorderApp');16mergeLanes('path/​to/​recording.json')17import { mergeLanes } from 'playwright-test/​lib/​server/​supplements/​recorder/​recorderApp';18mergeLanes('path/​to/​recording.json')19const { mergeLanes } = require('playwright-test/​lib/​server/​supplements/​recorder/​recorderApp');20mergeLanes('path/​to/​recording

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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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