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How to use getIsHydrating method in Playwright Internal

Best JavaScript code snippet using playwright-internal

ReactChildFiber.new.js

Source:ReactChildFiber.new.js

...768    }769    if (newIdx === newChildren.length) {770      // We've reached the end of the new children. We can delete the rest.771      deleteRemainingChildren(returnFiber, oldFiber);772      if (getIsHydrating()) {773        const numberOfForks = newIdx;774        pushTreeFork(returnFiber, numberOfForks);775      }776      return resultingFirstChild;777    }778    if (oldFiber === null) {779      // If we don't have any more existing children we can choose a fast path780      // since the rest will all be insertions.781      for (; newIdx < newChildren.length; newIdx++) {782        const newFiber = createChild(returnFiber, newChildren[newIdx], lanes);783        if (newFiber === null) {784          continue;785        }786        lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);787        if (previousNewFiber === null) {788          // TODO: Move out of the loop. This only happens for the first run.789          resultingFirstChild = newFiber;790        } else {791          previousNewFiber.sibling = newFiber;792        }793        previousNewFiber = newFiber;794      }795      if (getIsHydrating()) {796        const numberOfForks = newIdx;797        pushTreeFork(returnFiber, numberOfForks);798      }799      return resultingFirstChild;800    }801    // Add all children to a key map for quick lookups.802    const existingChildren = mapRemainingChildren(returnFiber, oldFiber);803    // Keep scanning and use the map to restore deleted items as moves.804    for (; newIdx < newChildren.length; newIdx++) {805      const newFiber = updateFromMap(806        existingChildren,807        returnFiber,808        newIdx,809        newChildren[newIdx],810        lanes,811      );812      if (newFiber !== null) {813        if (shouldTrackSideEffects) {814          if (newFiber.alternate !== null) {815            // The new fiber is a work in progress, but if there exists a816            // current, that means that we reused the fiber. We need to delete817            // it from the child list so that we don't add it to the deletion818            // list.819            existingChildren.delete(820              newFiber.key === null ? newIdx : newFiber.key,821            );822          }823        }824        lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);825        if (previousNewFiber === null) {826          resultingFirstChild = newFiber;827        } else {828          previousNewFiber.sibling = newFiber;829        }830        previousNewFiber = newFiber;831      }832    }833    if (shouldTrackSideEffects) {834      // Any existing children that weren't consumed above were deleted. We need835      // to add them to the deletion list.836      existingChildren.forEach(child => deleteChild(returnFiber, child));837    }838    if (getIsHydrating()) {839      const numberOfForks = newIdx;840      pushTreeFork(returnFiber, numberOfForks);841    }842    return resultingFirstChild;843  }844  function reconcileChildrenIterator(845    returnFiber: Fiber,846    currentFirstChild: Fiber | null,847    newChildrenIterable: Iterable<*>,848    lanes: Lanes,849  ): Fiber | null {850    // This is the same implementation as reconcileChildrenArray(),851    // but using the iterator instead.852    const iteratorFn = getIteratorFn(newChildrenIterable);853    if (typeof iteratorFn !== 'function') {854      throw new Error(855        'An object is not an iterable. This error is likely caused by a bug in ' +856          'React. Please file an issue.',857      );858    }859    if (__DEV__) {860      // We don't support rendering Generators because it's a mutation.861      // See https://github.com/facebook/react/issues/12995862      if (863        typeof Symbol === 'function' &&864        // $FlowFixMe Flow doesn't know about toStringTag865        newChildrenIterable[Symbol.toStringTag] === 'Generator'866      ) {867        if (!didWarnAboutGenerators) {868          console.error(869            'Using Generators as children is unsupported and will likely yield ' +870              'unexpected results because enumerating a generator mutates it. ' +871              'You may convert it to an array with `Array.from()` or the ' +872              '`[...spread]` operator before rendering. Keep in mind ' +873              'you might need to polyfill these features for older browsers.',874          );875        }876        didWarnAboutGenerators = true;877      }878      // Warn about using Maps as children879      if ((newChildrenIterable: any).entries === iteratorFn) {880        if (!didWarnAboutMaps) {881          console.error(882            'Using Maps as children is not supported. ' +883              'Use an array of keyed ReactElements instead.',884          );885        }886        didWarnAboutMaps = true;887      }888      // First, validate keys.889      // We'll get a different iterator later for the main pass.890      const newChildren = iteratorFn.call(newChildrenIterable);891      if (newChildren) {892        let knownKeys = null;893        let step = newChildren.next();894        for (; !step.done; step = newChildren.next()) {895          const child = step.value;896          knownKeys = warnOnInvalidKey(child, knownKeys, returnFiber);897        }898      }899    }900    const newChildren = iteratorFn.call(newChildrenIterable);901    if (newChildren == null) {902      throw new Error('An iterable object provided no iterator.');903    }904    let resultingFirstChild: Fiber | null = null;905    let previousNewFiber: Fiber | null = null;906    let oldFiber = currentFirstChild;907    let lastPlacedIndex = 0;908    let newIdx = 0;909    let nextOldFiber = null;910    let step = newChildren.next();911    for (912      ;913      oldFiber !== null && !step.done;914      newIdx++, step = newChildren.next()915    ) {916      if (oldFiber.index > newIdx) {917        nextOldFiber = oldFiber;918        oldFiber = null;919      } else {920        nextOldFiber = oldFiber.sibling;921      }922      const newFiber = updateSlot(returnFiber, oldFiber, step.value, lanes);923      if (newFiber === null) {924        // TODO: This breaks on empty slots like null children. That's925        // unfortunate because it triggers the slow path all the time. We need926        // a better way to communicate whether this was a miss or null,927        // boolean, undefined, etc.928        if (oldFiber === null) {929          oldFiber = nextOldFiber;930        }931        break;932      }933      if (shouldTrackSideEffects) {934        if (oldFiber && newFiber.alternate === null) {935          // We matched the slot, but we didn't reuse the existing fiber, so we936          // need to delete the existing child.937          deleteChild(returnFiber, oldFiber);938        }939      }940      lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);941      if (previousNewFiber === null) {942        // TODO: Move out of the loop. This only happens for the first run.943        resultingFirstChild = newFiber;944      } else {945        // TODO: Defer siblings if we're not at the right index for this slot.946        // I.e. if we had null values before, then we want to defer this947        // for each null value. However, we also don't want to call updateSlot948        // with the previous one.949        previousNewFiber.sibling = newFiber;950      }951      previousNewFiber = newFiber;952      oldFiber = nextOldFiber;953    }954    if (step.done) {955      // We've reached the end of the new children. We can delete the rest.956      deleteRemainingChildren(returnFiber, oldFiber);957      if (getIsHydrating()) {958        const numberOfForks = newIdx;959        pushTreeFork(returnFiber, numberOfForks);960      }961      return resultingFirstChild;962    }963    if (oldFiber === null) {964      // If we don't have any more existing children we can choose a fast path965      // since the rest will all be insertions.966      for (; !step.done; newIdx++, step = newChildren.next()) {967        const newFiber = createChild(returnFiber, step.value, lanes);968        if (newFiber === null) {969          continue;970        }971        lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);972        if (previousNewFiber === null) {973          // TODO: Move out of the loop. This only happens for the first run.974          resultingFirstChild = newFiber;975        } else {976          previousNewFiber.sibling = newFiber;977        }978        previousNewFiber = newFiber;979      }980      if (getIsHydrating()) {981        const numberOfForks = newIdx;982        pushTreeFork(returnFiber, numberOfForks);983      }984      return resultingFirstChild;985    }986    // Add all children to a key map for quick lookups.987    const existingChildren = mapRemainingChildren(returnFiber, oldFiber);988    // Keep scanning and use the map to restore deleted items as moves.989    for (; !step.done; newIdx++, step = newChildren.next()) {990      const newFiber = updateFromMap(991        existingChildren,992        returnFiber,993        newIdx,994        step.value,995        lanes,996      );997      if (newFiber !== null) {998        if (shouldTrackSideEffects) {999          if (newFiber.alternate !== null) {1000            // The new fiber is a work in progress, but if there exists a1001            // current, that means that we reused the fiber. We need to delete1002            // it from the child list so that we don't add it to the deletion1003            // list.1004            existingChildren.delete(1005              newFiber.key === null ? newIdx : newFiber.key,1006            );1007          }1008        }1009        lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);1010        if (previousNewFiber === null) {1011          resultingFirstChild = newFiber;1012        } else {1013          previousNewFiber.sibling = newFiber;1014        }1015        previousNewFiber = newFiber;1016      }1017    }1018    if (shouldTrackSideEffects) {1019      // Any existing children that weren't consumed above were deleted. We need1020      // to add them to the deletion list.1021      existingChildren.forEach(child => deleteChild(returnFiber, child));1022    }1023    if (getIsHydrating()) {1024      const numberOfForks = newIdx;1025      pushTreeFork(returnFiber, numberOfForks);1026    }1027    return resultingFirstChild;1028  }1029  function reconcileSingleTextNode(1030    returnFiber: Fiber,1031    currentFirstChild: Fiber | null,1032    textContent: string,1033    lanes: Lanes,1034  ): Fiber {1035    // There's no need to check for keys on text nodes since we don't have a1036    // way to define them.1037    if (currentFirstChild !== null && currentFirstChild.tag === HostText) {...

ReactChildFiber.old.js

Source:ReactChildFiber.old.js

...759    }760    if (newIdx === newChildren.length) {761      // We've reached the end of the new children. We can delete the rest.762      deleteRemainingChildren(returnFiber, oldFiber);763      if (getIsHydrating()) {764        const numberOfForks = newIdx;765        pushTreeFork(returnFiber, numberOfForks);766      }767      return resultingFirstChild;768    }769    if (oldFiber === null) {770      // If we don't have any more existing children we can choose a fast path771      // since the rest will all be insertions.772      for (; newIdx < newChildren.length; newIdx++) {773        const newFiber = createChild(returnFiber, newChildren[newIdx], lanes);774        if (newFiber === null) {775          continue;776        }777        lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);778        if (previousNewFiber === null) {779          // TODO: Move out of the loop. This only happens for the first run.780          resultingFirstChild = newFiber;781        } else {782          previousNewFiber.sibling = newFiber;783        }784        previousNewFiber = newFiber;785      }786      if (getIsHydrating()) {787        const numberOfForks = newIdx;788        pushTreeFork(returnFiber, numberOfForks);789      }790      return resultingFirstChild;791    }792    // Add all children to a key map for quick lookups.793    const existingChildren = mapRemainingChildren(returnFiber, oldFiber);794    // Keep scanning and use the map to restore deleted items as moves.795    for (; newIdx < newChildren.length; newIdx++) {796      const newFiber = updateFromMap(797        existingChildren,798        returnFiber,799        newIdx,800        newChildren[newIdx],801        lanes,802      );803      if (newFiber !== null) {804        if (shouldTrackSideEffects) {805          if (newFiber.alternate !== null) {806            // The new fiber is a work in progress, but if there exists a807            // current, that means that we reused the fiber. We need to delete808            // it from the child list so that we don't add it to the deletion809            // list.810            existingChildren.delete(811              newFiber.key === null ? newIdx : newFiber.key,812            );813          }814        }815        lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);816        if (previousNewFiber === null) {817          resultingFirstChild = newFiber;818        } else {819          previousNewFiber.sibling = newFiber;820        }821        previousNewFiber = newFiber;822      }823    }824    if (shouldTrackSideEffects) {825      // Any existing children that weren't consumed above were deleted. We need826      // to add them to the deletion list.827      existingChildren.forEach(child => deleteChild(returnFiber, child));828    }829    if (getIsHydrating()) {830      const numberOfForks = newIdx;831      pushTreeFork(returnFiber, numberOfForks);832    }833    return resultingFirstChild;834  }835  function reconcileChildrenIterator(836    returnFiber: Fiber,837    currentFirstChild: Fiber | null,838    newChildrenIterable: Iterable<*>,839    lanes: Lanes,840  ): Fiber | null {841    // This is the same implementation as reconcileChildrenArray(),842    // but using the iterator instead.843    const iteratorFn = getIteratorFn(newChildrenIterable);844    if (typeof iteratorFn !== 'function') {845      throw new Error(846        'An object is not an iterable. This error is likely caused by a bug in ' +847          'React. Please file an issue.',848      );849    }850    if (__DEV__) {851      // We don't support rendering Generators because it's a mutation.852      // See https://github.com/facebook/react/issues/12995853      if (854        typeof Symbol === 'function' &&855        // $FlowFixMe Flow doesn't know about toStringTag856        newChildrenIterable[Symbol.toStringTag] === 'Generator'857      ) {858        if (!didWarnAboutGenerators) {859          console.error(860            'Using Generators as children is unsupported and will likely yield ' +861              'unexpected results because enumerating a generator mutates it. ' +862              'You may convert it to an array with `Array.from()` or the ' +863              '`[...spread]` operator before rendering. Keep in mind ' +864              'you might need to polyfill these features for older browsers.',865          );866        }867        didWarnAboutGenerators = true;868      }869      // Warn about using Maps as children870      if ((newChildrenIterable: any).entries === iteratorFn) {871        if (!didWarnAboutMaps) {872          console.error(873            'Using Maps as children is not supported. ' +874              'Use an array of keyed ReactElements instead.',875          );876        }877        didWarnAboutMaps = true;878      }879      // First, validate keys.880      // We'll get a different iterator later for the main pass.881      const newChildren = iteratorFn.call(newChildrenIterable);882      if (newChildren) {883        let knownKeys = null;884        let step = newChildren.next();885        for (; !step.done; step = newChildren.next()) {886          const child = step.value;887          knownKeys = warnOnInvalidKey(child, knownKeys, returnFiber);888        }889      }890    }891    const newChildren = iteratorFn.call(newChildrenIterable);892    if (newChildren == null) {893      throw new Error('An iterable object provided no iterator.');894    }895    let resultingFirstChild: Fiber | null = null;896    let previousNewFiber: Fiber | null = null;897    let oldFiber = currentFirstChild;898    let lastPlacedIndex = 0;899    let newIdx = 0;900    let nextOldFiber = null;901    let step = newChildren.next();902    for (903      ;904      oldFiber !== null && !step.done;905      newIdx++, step = newChildren.next()906    ) {907      if (oldFiber.index > newIdx) {908        nextOldFiber = oldFiber;909        oldFiber = null;910      } else {911        nextOldFiber = oldFiber.sibling;912      }913      const newFiber = updateSlot(returnFiber, oldFiber, step.value, lanes);914      if (newFiber === null) {915        // TODO: This breaks on empty slots like null children. That's916        // unfortunate because it triggers the slow path all the time. We need917        // a better way to communicate whether this was a miss or null,918        // boolean, undefined, etc.919        if (oldFiber === null) {920          oldFiber = nextOldFiber;921        }922        break;923      }924      if (shouldTrackSideEffects) {925        if (oldFiber && newFiber.alternate === null) {926          // We matched the slot, but we didn't reuse the existing fiber, so we927          // need to delete the existing child.928          deleteChild(returnFiber, oldFiber);929        }930      }931      lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);932      if (previousNewFiber === null) {933        // TODO: Move out of the loop. This only happens for the first run.934        resultingFirstChild = newFiber;935      } else {936        // TODO: Defer siblings if we're not at the right index for this slot.937        // I.e. if we had null values before, then we want to defer this938        // for each null value. However, we also don't want to call updateSlot939        // with the previous one.940        previousNewFiber.sibling = newFiber;941      }942      previousNewFiber = newFiber;943      oldFiber = nextOldFiber;944    }945    if (step.done) {946      // We've reached the end of the new children. We can delete the rest.947      deleteRemainingChildren(returnFiber, oldFiber);948      if (getIsHydrating()) {949        const numberOfForks = newIdx;950        pushTreeFork(returnFiber, numberOfForks);951      }952      return resultingFirstChild;953    }954    if (oldFiber === null) {955      // If we don't have any more existing children we can choose a fast path956      // since the rest will all be insertions.957      for (; !step.done; newIdx++, step = newChildren.next()) {958        const newFiber = createChild(returnFiber, step.value, lanes);959        if (newFiber === null) {960          continue;961        }962        lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);963        if (previousNewFiber === null) {964          // TODO: Move out of the loop. This only happens for the first run.965          resultingFirstChild = newFiber;966        } else {967          previousNewFiber.sibling = newFiber;968        }969        previousNewFiber = newFiber;970      }971      if (getIsHydrating()) {972        const numberOfForks = newIdx;973        pushTreeFork(returnFiber, numberOfForks);974      }975      return resultingFirstChild;976    }977    // Add all children to a key map for quick lookups.978    const existingChildren = mapRemainingChildren(returnFiber, oldFiber);979    // Keep scanning and use the map to restore deleted items as moves.980    for (; !step.done; newIdx++, step = newChildren.next()) {981      const newFiber = updateFromMap(982        existingChildren,983        returnFiber,984        newIdx,985        step.value,986        lanes,987      );988      if (newFiber !== null) {989        if (shouldTrackSideEffects) {990          if (newFiber.alternate !== null) {991            // The new fiber is a work in progress, but if there exists a992            // current, that means that we reused the fiber. We need to delete993            // it from the child list so that we don't add it to the deletion994            // list.995            existingChildren.delete(996              newFiber.key === null ? newIdx : newFiber.key,997            );998          }999        }1000        lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);1001        if (previousNewFiber === null) {1002          resultingFirstChild = newFiber;1003        } else {1004          previousNewFiber.sibling = newFiber;1005        }1006        previousNewFiber = newFiber;1007      }1008    }1009    if (shouldTrackSideEffects) {1010      // Any existing children that weren't consumed above were deleted. We need1011      // to add them to the deletion list.1012      existingChildren.forEach(child => deleteChild(returnFiber, child));1013    }1014    if (getIsHydrating()) {1015      const numberOfForks = newIdx;1016      pushTreeFork(returnFiber, numberOfForks);1017    }1018    return resultingFirstChild;1019  }1020  function reconcileSingleTextNode(1021    returnFiber: Fiber,1022    currentFirstChild: Fiber | null,1023    textContent: string,1024    lanes: Lanes,1025  ): Fiber {1026    // There's no need to check for keys on text nodes since we don't have a1027    // way to define them.1028    if (currentFirstChild !== null && currentFirstChild.tag === HostText) {...

ReactFiberHydrationContext.js

Source:ReactFiberHydrationContext.js

...454  hydrationParentFiber = null;455  nextHydratableInstance = null;456  isHydrating = false;457}458function getIsHydrating(): boolean {459  return isHydrating;460}461export {462  warnIfHydrating,463  enterHydrationState,464  reenterHydrationStateFromDehydratedSuspenseInstance,465  resetHydrationState,466  tryToClaimNextHydratableInstance,467  prepareToHydrateHostInstance,468  prepareToHydrateHostTextInstance,469  prepareToHydrateHostSuspenseInstance,470  popHydrationState,471  getIsHydrating,472};

ReactDOMFB.js

Source:ReactDOMFB.js

1/**2 * Copyright (c) Facebook, Inc. and its affiliates.3 *4 * This source code is licensed under the MIT license found in the5 * LICENSE file in the root directory of this source tree.6 *7 * @flow8 */9import {findCurrentFiberUsingSlowPath} from 'react-reconciler/reflection';10import {getIsHydrating} from 'react-reconciler/src/ReactFiberHydrationContext';11import {get as getInstance} from 'shared/ReactInstanceMap';12import {addUserTimingListener} from 'shared/ReactFeatureFlags';13import ReactDOM from './ReactDOM';14import {isEnabled} from '../events/ReactBrowserEventEmitter';15import {getClosestInstanceFromNode} from './ReactDOMComponentTree';16Object.assign(17  (ReactDOM.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED: any),18  {19    // These are real internal dependencies that are trickier to remove:20    ReactBrowserEventEmitter: {21      isEnabled,22    },23    ReactFiberTreeReflection: {24      findCurrentFiberUsingSlowPath,25    },26    ReactDOMComponentTree: {27      getClosestInstanceFromNode,28    },29    ReactInstanceMap: {30      get: getInstance,31    },32    // Perf experiment33    addUserTimingListener,34    getIsHydrating,35  },36);...

Using AI Code Generation

1const { getIsHydrating } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const context = await browser.newContext();5  const page = await context.newPage();6  const isHydrating = getIsHydrating(page);7  console.log(isHydrating);8  await browser.close();9})();10const { getIsHydrating } = require('playwright');11(async () => {12  const browser = await chromium.launch();13  const context = await browser.newContext();14  const page = await context.newPage();15  await page.waitForLoadState('load');16  const isHydrating = getIsHydrating(page);17  console.log(isHydrating);18  await browser.close();19})();

Using AI Code Generation

1const { getIsHydrating } = require('playwright/lib/server/chromium/crPage');2(async () => {3  const browser = await chromium.launch();4  const context = await browser.newContext();5  const page = await context.newPage();6  console.log(await getIsHydrating(page));7  await browser.close();8})();

Using AI Code Generation

1const { getIsHydrating } = require('playwright/lib/server/chromium/crPage');2(async () => {3  const browser = await chromium.launch();4  const context = await browser.newContext();5  const page = await context.newPage();6  console.log(await getIsHydrating(page));7  await browser.close();8})();

Using AI Code Generation

1const { getIsHydrating } = require('@playwright/test/lib/server/frames');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 frame = page.mainFrame();8  console.log(getIsHydrating(frame));9  await browser.close();10})();

Using AI Code Generation

1const { getIsHydrating } = require('playwright/lib/server/dom.js');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 isHydrating = getIsHydrating(page);8  console.log(isHydrating);9  await browser.close();10})();11const { getIsHydrating } = require('playwright/lib/server/dom.js');12const { chromium } = require('playwright');13(async () => {14  const browser = await chromium.launch();15  const context = await browser.newContext();16  const page = await context.newPage();17  while (getIsHydrating(page)) {18    await page.waitForTimeout(100);19  }20  console.log('Page is loaded');21  await browser.close();22})();23const { getIsHydrating } = require('playwright/lib/server/dom.js');24const { chromium } = require('playwright');25(async () => {26  const browser = await chromium.launch();27  const context = await browser.newContext();28  const page = await context.newPage();29  await page.waitForFunction(() => {30    return !getIsHydrating();31  });32  console.log('Page is loaded');33  await browser.close();34})();35const { getIsHydrating } = require('playwright/lib/server/dom.js');36const { chromium } = require('playwright');37(async () => {38  const browser = await chromium.launch();39  const context = await browser.newContext();

Using AI Code Generation

1const { getIsHydrating } = require('playwright/lib/server/frames');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 frame = page.mainFrame();8  console.log(getIsHydrating(frame));9  await browser.close();10})();11A real-world use case of getIsHydrating() method12const { chromium } = require('playwright');13const assert = require('assert');14(async () => {15  const browser = await chromium.launch();16  const context = await browser.newContext();17  const page = await context.newPage();18  const frame = page.mainFrame();19  const button = await frame.$('button');20  button.click();21  const isHydrating = getIsHydrating(frame);22  assert.strictEqual(isHydrating, true);23  await browser.close();24})();25Output: successplaywright');26const isHydrating = getIsHydrating();27console.log(isHydrating);

Using AI Code Generation

1const { getIsHydrating } = require('@playwright/test/lib/internal/hydrate');2console.log(getIsHydrating());3const { setHydrating } = require('@playwright/test/lib/internal/hydrate');4test('tet', async ({ page }) => {5  setHydrating(true);6  expet(await getIsHydrating()).tBe(true);7  setHydrating(false);8  expect(await getIsHydratig()).toBe(false);9});

Using AI Code Generation

1const { getIsHydrating } = require('@playwright/test/lib/internal/hydrate');2console.log(getIsHydrating());3const { setHydrating } = require('@playwright/test/lib/internal/hydrate');4test('test', async ({ page }) => {5  setHydrating(true);6  expect(await getIsHydrating()).toBe(true);7  setHydrating(false);8  expect(await getIsHydrating()).toBe(false);9});

Using AI Code Generation

1const { getIsHydrating } = require('@playwright/test/lib/server/frames');2const { test } = require('@playwright/test');3test.describe('Test', () => {4  test('test', async ({ page }) => {5    await page.waitForSelector('input[title="Search"]');6    console.log(await getIsHydrating(page.mainFrame()));7  });8});9      at Object.<anonymous> (test.js:9:15)10      at processTicksAndRejections (internal/process/task_queues.js:93:5)11    ✔ Test › test (1s)12  1 passed (2s)

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.