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How to use markRootFinishedAtTime method in Playwright Internal

Best JavaScript code snippet using playwright-internal

ReactFiberWorkLoop.js

...245  workInProgress = null246  renderExpirationTime = NoWork247  const remainingExpirationTimeBeforeCommit =248    getRemainingExpirationTime(finishedWork)249  markRootFinishedAtTime(250    root,251    expirationTime,252    remainingExpirationTimeBeforeCommit253  )254  let firstEffect255  if (finishedWork.effectTag > PerformedWork) {256    if (finishedWork.lastEffect !== null) {257      finishedWork.lastEffect.nextEffect = finishedWork258      firstEffect = finishedWork.firstEffect259    } else {260      firstEffect = finishedWork261    }262  } else {263    // rootä¸æ²¡æside effect...

ReactFiberRoot.old.js

Source: ReactFiberRoot.old.js

...129      root.nextKnownPendingLevel = expirationTime;130    }131  }132}133export function markRootFinishedAtTime(134  root: FiberRoot,135  finishedExpirationTime: ExpirationTime,136  remainingExpirationTime: ExpirationTime,137): void {138  // Update the range of pending times139  root.firstPendingTime = remainingExpirationTime;140  if (remainingExpirationTime < root.lastPendingTime) {141    // This usually means we've finished all the work, but it can also happen142    // when something gets downprioritized during render, like a hidden tree.143    root.lastPendingTime = remainingExpirationTime;144  }145  // Update the range of suspended times. Treat everything higher priority or146  // equal to this update as unsuspended.147  if (finishedExpirationTime <= root.lastSuspendedTime) {...

ReactFiberRoot.new.js

Source: ReactFiberRoot.new.js

...129      root.nextKnownPendingLevel = expirationTime;130    }131  }132}133export function markRootFinishedAtTime(134  root: FiberRoot,135  finishedExpirationTime: ExpirationTime,136  remainingExpirationTime: ExpirationTime,137): void {138  // Update the range of pending times139  root.firstPendingTime = remainingExpirationTime;140  if (remainingExpirationTime < root.lastPendingTime) {141    // This usually means we've finished all the work, but it can also happen142    // when something gets downprioritized during render, like a hidden tree.143    root.lastPendingTime = remainingExpirationTime;144  }145  // Update the range of suspended times. Treat everything higher priority or146  // equal to this update as unsuspended.147  if (finishedExpirationTime <= root.lastSuspendedTime) {...

finishSyncRender.js

Source: finishSyncRender.js

...17    startCommitTimer();18    const remainingExpirationTimeBeforeCommit = getRemainingExpirationTime(19        finishedWork,20    );21    markRootFinishedAtTime(22        root,23        expirationTime,24        remainingExpirationTimeBeforeCommit,25    );26    if (root === workInProgressRoot) {27        workInProgressRoot = null;28        workInProgress = null;29        renderExpirationTime = NoWork;30    }31    let firstEffect;32    if (finishedWork.effectTag > PerformedWork) {33        if (finishedWork.lastEffect !== null) {34            finishedWork.lastEffect.nextEffect = finishedWork;35            firstEffect = finishedWork.firstEffect;...

ReactFiberRoot.js

Source: ReactFiberRoot.js

...13  this.firstPendingTime = NoWork14  this.lastPingedTime = NoWork15  this.lastExpiredTime = NoWork16}17export function markRootFinishedAtTime(18  root,19  finishedExpirationTime,20  remainingExpirationTime21) {22  // Update the range of pending times23  root.firstPendingTime = remainingExpirationTime24}25export function markRootUpdatedAtTime(root, expirationTime) {26  // Update the range of pending times27  const firstPendingTime = root.firstPendingTime28  if (expirationTime > firstPendingTime) {29    root.firstPendingTime = expirationTime30  }31}

Using AI Code Generation

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.screenshot({ path: `example.png` });7  await browser.close();8})();9const { chromium } = require('playwright');10(async () => {11  const browser = await chromium.launch();12  const context = await browser.newContext();13  const page = await context.newPage();14  await page.evaluate(() => {15    window.playwright._internalApi.markRootFinishedAtTime(Date.now());16  });17  await page.screenshot({ path: `example.png` });18  await browser.close();19})();

Using AI Code Generation

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.waitForTimeout(1000);7  await page.evaluate(() => {8    const { markRootFinishedAtTime } = require('playwright/lib/server/supplements/recorder/recorderSupplement');9    markRootFinishedAtTime(Date.now());10  });11  await page.waitForTimeout(1000);12  await browser.close();13})();14const { chromium } = require('playwright');15(async () => {16  const browser = await chromium.launch();17  const context = await browser.newContext();18  const page = await context.newPage();19  await page.waitForTimeout(1000);20  await page.evaluate(() => {21    const { markRootFinishedAtTime } = require('playwright/lib/server/supplements/recorder/recorderSupplement');22    markRootFinishedAtTime(Date.now());23  });24  await page.waitForTimeout(1000);25  await browser.close();26})();27const { chromium } = require('playwright');28(async () => {29  const browser = await chromium.launch();30  const context = await browser.newContext();31  const page = await context.newPage();32  await page.waitForTimeout(1000);33  await page.evaluate(() => {34    const { markRootFinishedAtTime } = require('playwright/lib/server/supplements/recorder/recorderSupplement');35    markRootFinishedAtTime(Date.now());36  });37  await page.waitForTimeout(1000);38  await browser.close();39})();40const { chromium } = require('playwright');41(async () => {42  const browser = await chromium.launch();43  const context = await browser.newContext();44  const page = await context.newPage();45  await page.waitForTimeout(1000);46  await page.evaluate(() => {47    const { mark

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  page._delegate.markRootFinishedAtTime();7  await browser.close();8})();9await page._delegate._frameManager._page._delegate.markRootFinishedAtTime();

Using AI Code Generation

1const playwright = require('playwright');2const { chromium } = playwright;3(async () => {4  const browser = await chromium.launch();5  const context = await browser.newContext();6  const page = await context.newPage();7  await page.screenshot({ path: `example.png` });8  await browser.close();9})();10const playwright = require('playwright');11const { chromium } = playwright;12(async () => {13  const browser = await chromium.launch();14  const context = await browser.newContext();15  const page = await context.newPage();16  await page.screenshot({ path: `example.png` });17  await browser.close();18})();19const playwright = require('playwright');20const { chromium } = playwright;21(async () => {22  const browser = await chromium.launch();23  const context = await browser.newContext();24  const page = await context.newPage();25  await page.screenshot({ path: `example.png` });26  await browser.close();27})();28const playwright = require('playwright');29const { chromium } = playwright;30(async () => {31  const browser = await chromium.launch();32  const context = await browser.newContext();33  const page = await context.newPage();34  await page.screenshot({ path: `example.png` });35  await browser.close();36})();37const playwright = require('playwright');38const { chromium } = playwright;39(async () => {40  const browser = await chromium.launch();41  const context = await browser.newContext();42  const page = await context.newPage();43  await page.screenshot({ path: `example.png` });44  await browser.close();45})();46const playwright = require('playwright

Using AI Code Generation

1const playwright = require('playwright');2const { markRootFinishedAtTime } = require('playwright/lib/server/supplements/recorder/recorderSupplement');3(async () => {4  const browser = await playwright.chromium.launch({ headless: false });5  const context = await browser.newContext();6  const page = await context.newPage();7  await page.waitForTimeout(2000);8  await markRootFinishedAtTime(page, 2000);9  await browser.close();10})();11const playwright = require('playwright');12const { markRootFinishedAtTime } = require('playwright/lib/server/supplements/recorder/recorderSupplement');13(async () => {14  const browser = await playwright.chromium.launch({ headless: false });15  const context = await browser.newContext();16  const page = await context.newPage();17  await page.waitForTimeout(2000);18  await markRootFinishedAtTime(page

Using AI Code Generation

1const {chromium} = require('playwright');2const browser = await chromium.launch();3const context = await browser.newContext();4const page = await context.newPage();5await page.evaluate(() => {6  window.playwright.markRootFinishedAtTime();7});8await browser.close();9const {chromium} = require('playwright');10const browser = await chromium.launch();11const context = await browser.newContext();12const page = await context.newPage();13await page.evaluate(() => {14  window.playwright.markRootFinishedAtTime();15});16await browser.close();17const {chromium} = require('playwright');18const browser = await chromium.launch();19const context = await browser.newContext();20const page = await context.newPage();21await page.evaluate(() => {22  window.playwright.markRootFinishedAtTime();23});24await browser.close();25const {chromium} = require('playwright');26const browser = await chromium.launch();27const context = await browser.newContext();28const page = await context.newPage();29await page.evaluate(() => {30  window.playwright.markRootFinishedAtTime();31});32await browser.close();33const {chromium} = require('playwright');34const browser = await chromium.launch();35const context = await browser.newContext();36const page = await context.newPage();37await page.evaluate(() => {38  window.playwright.markRootFinishedAtTime();39});40await browser.close();41const {chromium} = require('playwright');42const browser = await chromium.launch();43const context = await browser.newContext();44const page = await context.newPage();45await page.evaluate(() => {46  window.playwright.markRootFinishedAtTime();47});

Using AI Code Generation

1const { InternalAPI } = require('playwright');2const api = InternalAPI.create();3const trace = await api.startTracing(page, { screenshots: true, snapshots: true });4await page.click('text=Click me');5await api.markRootFinishedAtTime(trace, 1234567890);6await trace.stop();7const { InternalAPI } = require('playwright');8const api = InternalAPI.create();9const trace = await api.startTracing(page, { screenshots: true, snapshots: true });10await page.click('text=Click me');11await api.markRootFinishedAtTime(trace, 1234567890);12await trace.stop();13const { InternalAPI } = require('playwright');14const api = InternalAPI.create();15const trace = await api.startTracing(page, { screenshots: true, snapshots: true });16await page.click('text=Click me');17await api.markRootFinishedAtTime(trace, 1234567890);18await trace.stop();19const { InternalAPI } = require('playwright');20const api = InternalAPI.create();21const trace = await api.startTracing(page, { screenshots: true, snapshots: true });22await page.click('text=Click me');23await api.markRootFinishedAtTime(trace, 1234567890);24await trace.stop();25const { InternalAPI } = require('playwright');26const api = InternalAPI.create();27const trace = await api.startTracing(page, { screenshots: true, snapshots: true });28await page.click('text=Click me');29await api.markRootFinishedAtTime(trace, 1234567890);30await trace.stop();31const { InternalAPI } = require('playwright');

StackOverFlow community discussions

Questions

Discussion

How to run a list of test suites in a single file concurrently in jest?

Running Playwright in Azure Function

Is it possible to get the selector from a locator object in playwright?

firefox browser does not start in playwright

Jest + Playwright - Test callbacks of event-based DOM library

firefox browser does not start in playwright

Assuming you are not running test with the --runinband flag, the simple answer is yes but it depends ????

There is a pretty comprehensive GitHub issue jest#6957 that explains certain cases of when tests are run concurrently or in parallel. But it seems to depend on a lot of edge cases where jest tries its best to determine the fastest way to run the tests given the circumstances.

To my knowledge there is no way to force jest to run in parallel.

Aside

Have you considered using playwright instead of puppeteer with jest? Playwright has their own internally built testing library called @playwright/test that is used in place of jest with a similar API. This library allows for explicitly defining test groups in a single file to run in parallel (i.e. test.describe.parallel) or serially (i.e. test.describe.serial). Or even to run all tests in parallel via a config option.

// parallel
test.describe.parallel('group', () => {
  test('runs in parallel 1', async ({ page }) => {});
  test('runs in parallel 2', async ({ page }) => {});
});

// serial
test.describe.serial('group', () => {
  test('runs first', async ({ page }) => {});
  test('runs second', async ({ page }) => {});
});

https://stackoverflow.com/questions/73497773/how-to-run-a-list-of-test-suites-in-a-single-file-concurrently-in-jest

Well this is one way, but not sure if it will work for all possible locators!.

// Get a selector from a playwright locator
import { Locator } from "@playwright/test";
export function extractSelector(locator: Locator) {
    const selector = locator.toString();
    const parts = selector.split("@");
    if (parts.length !== 2) { throw Error("extractSelector: susupect that this is not a locator"); }
    if (parts[0] !== "Locator") { throw Error("extractSelector: did not find locator"); }
    return parts[1];
}

https://stackoverflow.com/questions/72044959/is-it-possible-to-get-the-selector-from-a-locator-object-in-playwright

I found the error. It was because of some missing libraries need. I discovered this when I downgraded playwright to version 1.9 and ran the the code then this was the error msg:

(node:12876) UnhandledPromiseRejectionWarning: browserType.launch: Host system is missing dependencies!

Some of the Universal C Runtime files cannot be found on the system. You can fix
that by installing Microsoft Visual C++ Redistributable for Visual Studio from:
https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads

Full list of missing libraries:
    vcruntime140.dll
    msvcp140.dll
Error
    at Object.captureStackTrace (D:\Projects\snkrs-play\node_modules\playwright\lib\utils\stackTrace.js:48:19)
    at Connection.sendMessageToServer (D:\Projects\snkrs-play\node_modules\playwright\lib\client\connection.js:69:48)
    at Proxy.<anonymous> (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:64:61)
    at D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:64:67
    at BrowserType._wrapApiCall (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:77:34)
    at BrowserType.launch (D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:55:21)
    at D:\Projects\snkrs-play\index.js:4:35
    at Object.<anonymous> (D:\Projects\snkrs-play\index.js:7:3)
    at Module._compile (internal/modules/cjs/loader.js:1063:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:12876) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:12876) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

A list of missing libraries was provided. After successful installments, firefox ran fine. I upgraded again to version 1.10 and firefox still works.

https://stackoverflow.com/questions/66984974/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

I found the error. It was because of some missing libraries need. I discovered this when I downgraded playwright to version 1.9 and ran the the code then this was the error msg:

(node:12876) UnhandledPromiseRejectionWarning: browserType.launch: Host system is missing dependencies!

Some of the Universal C Runtime files cannot be found on the system. You can fix
that by installing Microsoft Visual C++ Redistributable for Visual Studio from:
https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads

Full list of missing libraries:
    vcruntime140.dll
    msvcp140.dll
Error
    at Object.captureStackTrace (D:\Projects\snkrs-play\node_modules\playwright\lib\utils\stackTrace.js:48:19)
    at Connection.sendMessageToServer (D:\Projects\snkrs-play\node_modules\playwright\lib\client\connection.js:69:48)
    at Proxy.<anonymous> (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:64:61)
    at D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:64:67
    at BrowserType._wrapApiCall (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:77:34)
    at BrowserType.launch (D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:55:21)
    at D:\Projects\snkrs-play\index.js:4:35
    at Object.<anonymous> (D:\Projects\snkrs-play\index.js:7:3)
    at Module._compile (internal/modules/cjs/loader.js:1063:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:12876) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:12876) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

A list of missing libraries was provided. After successful installments, firefox ran fine. I upgraded again to version 1.10 and firefox still works.

https://stackoverflow.com/questions/66984974/firefox-browser-does-not-start-in-playwright

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