KaneAI - World’s First E2E Software Testing Agent.Signup for Private Beta Join TestMu Conference

How to use createClassErrorUpdate method in Playwright Internal

Best JavaScript code snippet using playwright-internal

ReactFiberThrow.js

Source:ReactFiberThrow.js

...71    logError(fiber, errorInfo);72  };73  return update;74}75function createClassErrorUpdate(76  fiber: Fiber,77  errorInfo: CapturedValue<mixed>,78  expirationTime: ExpirationTime,79): Update<mixed> {80  const update = createUpdate(expirationTime, null);81  update.tag = CaptureUpdate;82  const getDerivedStateFromError = fiber.type.getDerivedStateFromError;83  if (typeof getDerivedStateFromError === 'function') {84    const error = errorInfo.value;85    update.payload = () => {86      logError(fiber, errorInfo);87      return getDerivedStateFromError(error);88    };89  }90  const inst = fiber.stateNode;91  if (inst !== null && typeof inst.componentDidCatch === 'function') {92    update.callback = function callback() {93      if (__DEV__) {94        markFailedErrorBoundaryForHotReloading(fiber);95      }96      if (typeof getDerivedStateFromError !== 'function') {97        // To preserve the preexisting retry behavior of error boundaries,98        // we keep track of which ones already failed during this batch.99        // This gets reset before we yield back to the browser.100        // TODO: Warn in strict mode if getDerivedStateFromError is101        // not defined.102        markLegacyErrorBoundaryAsFailed(this);103        // Only log here if componentDidCatch is the only error boundary method defined104        logError(fiber, errorInfo);105      }106      const error = errorInfo.value;107      const stack = errorInfo.stack;108      this.componentDidCatch(error, {109        componentStack: stack !== null ? stack : '',110      });111      if (__DEV__) {112        if (typeof getDerivedStateFromError !== 'function') {113          // If componentDidCatch is the only error boundary method defined,114          // then it needs to call setState to recover from errors.115          // If no state update is scheduled then the boundary will swallow the error.116          if (fiber.expirationTime !== Sync) {117            console.error(118              '%s: Error boundaries should implement getDerivedStateFromError(). ' +119                'In that method, return a state update to display an error message or fallback UI.',120              getComponentName(fiber.type) || 'Unknown',121            );122          }123        }124      }125    };126  } else if (__DEV__) {127    update.callback = () => {128      markFailedErrorBoundaryForHotReloading(fiber);129    };130  }131  return update;132}133function attachPingListener(134  root: FiberRoot,135  renderExpirationTime: ExpirationTime,136  thenable: Thenable,137) {138  // Attach a listener to the promise to "ping" the root and retry. But139  // only if one does not already exist for the current render expiration140  // time (which acts like a "thread ID" here).141  let pingCache = root.pingCache;142  let threadIDs;143  if (pingCache === null) {144    pingCache = root.pingCache = new PossiblyWeakMap();145    threadIDs = new Set();146    pingCache.set(thenable, threadIDs);147  } else {148    threadIDs = pingCache.get(thenable);149    if (threadIDs === undefined) {150      threadIDs = new Set();151      pingCache.set(thenable, threadIDs);152    }153  }154  if (!threadIDs.has(renderExpirationTime)) {155    // Memoize using the thread ID to prevent redundant listeners.156    threadIDs.add(renderExpirationTime);157    let ping = pingSuspendedRoot.bind(158      null,159      root,160      thenable,161      renderExpirationTime,162    );163    thenable.then(ping, ping);164  }165}166function throwException(167  root: FiberRoot,168  returnFiber: Fiber,169  sourceFiber: Fiber,170  value: mixed,171  renderExpirationTime: ExpirationTime,172) {173  // The source fiber did not complete.174  sourceFiber.effectTag |= Incomplete;175  // Its effect list is no longer valid.176  sourceFiber.firstEffect = sourceFiber.lastEffect = null;177  if (178    value !== null &&179    typeof value === 'object' &&180    typeof value.then === 'function'181  ) {182    // This is a thenable.183    const thenable: Thenable = (value: any);184    if ((sourceFiber.mode & BlockingMode) === NoMode) {185      // Reset the memoizedState to what it was before we attempted186      // to render it.187      let currentSource = sourceFiber.alternate;188      if (currentSource) {189        sourceFiber.updateQueue = currentSource.updateQueue;190        sourceFiber.memoizedState = currentSource.memoizedState;191        sourceFiber.expirationTime = currentSource.expirationTime;192      } else {193        sourceFiber.updateQueue = null;194        sourceFiber.memoizedState = null;195      }196    }197    let hasInvisibleParentBoundary = hasSuspenseContext(198      suspenseStackCursor.current,199      (InvisibleParentSuspenseContext: SuspenseContext),200    );201    // Schedule the nearest Suspense to re-render the timed out view.202    let workInProgress = returnFiber;203    do {204      if (205        workInProgress.tag === SuspenseComponent &&206        shouldCaptureSuspense(workInProgress, hasInvisibleParentBoundary)207      ) {208        // Found the nearest boundary.209        // Stash the promise on the boundary fiber. If the boundary times out, we'll210        // attach another listener to flip the boundary back to its normal state.211        const thenables: Set<Thenable> = (workInProgress.updateQueue: any);212        if (thenables === null) {213          const updateQueue = (new Set(): any);214          updateQueue.add(thenable);215          workInProgress.updateQueue = updateQueue;216        } else {217          thenables.add(thenable);218        }219        // If the boundary is outside of blocking mode, we should *not*220        // suspend the commit. Pretend as if the suspended component rendered221        // null and keep rendering. In the commit phase, we'll schedule a222        // subsequent synchronous update to re-render the Suspense.223        //224        // Note: It doesn't matter whether the component that suspended was225        // inside a blocking mode tree. If the Suspense is outside of it, we226        // should *not* suspend the commit.227        if ((workInProgress.mode & BlockingMode) === NoMode) {228          workInProgress.effectTag |= DidCapture;229          // We're going to commit this fiber even though it didn't complete.230          // But we shouldn't call any lifecycle methods or callbacks. Remove231          // all lifecycle effect tags.232          sourceFiber.effectTag &= ~(LifecycleEffectMask | Incomplete);233          if (sourceFiber.tag === ClassComponent) {234            const currentSourceFiber = sourceFiber.alternate;235            if (currentSourceFiber === null) {236              // This is a new mount. Change the tag so it's not mistaken for a237              // completed class component. For example, we should not call238              // componentWillUnmount if it is deleted.239              sourceFiber.tag = IncompleteClassComponent;240            } else {241              // When we try rendering again, we should not reuse the current fiber,242              // since it's known to be in an inconsistent state. Use a force update to243              // prevent a bail out.244              const update = createUpdate(Sync, null);245              update.tag = ForceUpdate;246              enqueueUpdate(sourceFiber, update);247            }248          }249          // The source fiber did not complete. Mark it with Sync priority to250          // indicate that it still has pending work.251          sourceFiber.expirationTime = Sync;252          // Exit without suspending.253          return;254        }255        // Confirmed that the boundary is in a concurrent mode tree. Continue256        // with the normal suspend path.257        //258        // After this we'll use a set of heuristics to determine whether this259        // render pass will run to completion or restart or "suspend" the commit.260        // The actual logic for this is spread out in different places.261        //262        // This first principle is that if we're going to suspend when we complete263        // a root, then we should also restart if we get an update or ping that264        // might unsuspend it, and vice versa. The only reason to suspend is265        // because you think you might want to restart before committing. However,266        // it doesn't make sense to restart only while in the period we're suspended.267        //268        // Restarting too aggressively is also not good because it starves out any269        // intermediate loading state. So we use heuristics to determine when.270        // Suspense Heuristics271        //272        // If nothing threw a Promise or all the same fallbacks are already showing,273        // then don't suspend/restart.274        //275        // If this is an initial render of a new tree of Suspense boundaries and276        // those trigger a fallback, then don't suspend/restart. We want to ensure277        // that we can show the initial loading state as quickly as possible.278        //279        // If we hit a "Delayed" case, such as when we'd switch from content back into280        // a fallback, then we should always suspend/restart. SuspenseConfig applies to281        // this case. If none is defined, JND is used instead.282        //283        // If we're already showing a fallback and it gets "retried", allowing us to show284        // another level, but there's still an inner boundary that would show a fallback,285        // then we suspend/restart for 500ms since the last time we showed a fallback286        // anywhere in the tree. This effectively throttles progressive loading into a287        // consistent train of commits. This also gives us an opportunity to restart to288        // get to the completed state slightly earlier.289        //290        // If there's ambiguity due to batching it's resolved in preference of:291        // 1) "delayed", 2) "initial render", 3) "retry".292        //293        // We want to ensure that a "busy" state doesn't get force committed. We want to294        // ensure that new initial loading states can commit as soon as possible.295        attachPingListener(root, renderExpirationTime, thenable);296        workInProgress.effectTag |= ShouldCapture;297        workInProgress.expirationTime = renderExpirationTime;298        return;299      }300      // This boundary already captured during this render. Continue to the next301      // boundary.302      workInProgress = workInProgress.return;303    } while (workInProgress !== null);304    // No boundary was found. Fallthrough to error mode.305    // TODO: Use invariant so the message is stripped in prod?306    value = new Error(307      (getComponentName(sourceFiber.type) || 'A React component') +308        ' suspended while rendering, but no fallback UI was specified.\n' +309        '\n' +310        'Add a <Suspense fallback=...> component higher in the tree to ' +311        'provide a loading indicator or placeholder to display.' +312        getStackByFiberInDevAndProd(sourceFiber),313    );314  }315  // We didn't find a boundary that could handle this type of exception. Start316  // over and traverse parent path again, this time treating the exception317  // as an error.318  renderDidError();319  value = createCapturedValue(value, sourceFiber);320  let workInProgress = returnFiber;321  do {322    switch (workInProgress.tag) {323      case HostRoot: {324        const errorInfo = value;325        workInProgress.effectTag |= ShouldCapture;326        workInProgress.expirationTime = renderExpirationTime;327        const update = createRootErrorUpdate(328          workInProgress,329          errorInfo,330          renderExpirationTime,331        );332        enqueueCapturedUpdate(workInProgress, update);333        return;334      }335      case ClassComponent:336        // Capture and retry337        const errorInfo = value;338        const ctor = workInProgress.type;339        const instance = workInProgress.stateNode;340        if (341          (workInProgress.effectTag & DidCapture) === NoEffect &&342          (typeof ctor.getDerivedStateFromError === 'function' ||343            (instance !== null &&344              typeof instance.componentDidCatch === 'function' &&345              !isAlreadyFailedLegacyErrorBoundary(instance)))346        ) {347          workInProgress.effectTag |= ShouldCapture;348          workInProgress.expirationTime = renderExpirationTime;349          // Schedule the error boundary to re-render using updated state350          const update = createClassErrorUpdate(351            workInProgress,352            errorInfo,353            renderExpirationTime,354          );355          enqueueCapturedUpdate(workInProgress, update);356          return;357        }358        break;359      default:360        break;361    }362    workInProgress = workInProgress.return;363  } while (workInProgress !== null);364}...

ReactFiberUnwindWork.js

Source:ReactFiberUnwindWork.js

...80    logError(fiber, errorInfo);81  };82  return update;83}84function createClassErrorUpdate(85  fiber: Fiber,86  errorInfo: CapturedValue<mixed>,87  expirationTime: ExpirationTime,88): Update<mixed> {89  const update = createUpdate(expirationTime);90  update.tag = CaptureUpdate;91  const getDerivedStateFromCatch = fiber.type.getDerivedStateFromCatch;92  if (93    enableGetDerivedStateFromCatch &&94    typeof getDerivedStateFromCatch === 'function'95  ) {96    const error = errorInfo.value;97    update.payload = () => {98      return getDerivedStateFromCatch(error);99    };100  }101  const inst = fiber.stateNode;102  if (inst !== null && typeof inst.componentDidCatch === 'function') {103    update.callback = function callback() {104      if (105        !enableGetDerivedStateFromCatch ||106        getDerivedStateFromCatch !== 'function'107      ) {108        // To preserve the preexisting retry behavior of error boundaries,109        // we keep track of which ones already failed during this batch.110        // This gets reset before we yield back to the browser.111        // TODO: Warn in strict mode if getDerivedStateFromCatch is112        // not defined.113        markLegacyErrorBoundaryAsFailed(this);114      }115      const error = errorInfo.value;116      const stack = errorInfo.stack;117      logError(fiber, errorInfo);118      this.componentDidCatch(error, {119        componentStack: stack !== null ? stack : '',120      });121    };122  }123  return update;124}125function schedulePing(finishedWork) {126  // Once the promise resolves, we should try rendering the non-127  // placeholder state again.128  const currentTime = requestCurrentTime();129  const expirationTime = computeExpirationForFiber(currentTime, finishedWork);130  const recoveryUpdate = createUpdate(expirationTime);131  enqueueUpdate(finishedWork, recoveryUpdate, expirationTime);132  scheduleWork(finishedWork, expirationTime);133}134function throwException(135  root: FiberRoot,136  returnFiber: Fiber,137  sourceFiber: Fiber,138  value: mixed,139  renderExpirationTime: ExpirationTime,140) {141  // The source fiber did not complete.142  sourceFiber.effectTag |= Incomplete;143  // Its effect list is no longer valid.144  sourceFiber.firstEffect = sourceFiber.lastEffect = null;145  if (146    enableSuspense &&147    value !== null &&148    typeof value === 'object' &&149    typeof value.then === 'function'150  ) {151    // This is a thenable.152    const thenable: Thenable = (value: any);153    // TODO: Should use the earliest known expiration time154    const currentTime = requestCurrentTime();155    const expirationTimeMs = expirationTimeToMs(renderExpirationTime);156    const currentTimeMs = expirationTimeToMs(currentTime);157    const startTimeMs = expirationTimeMs - 5000;158    let elapsedMs = currentTimeMs - startTimeMs;159    if (elapsedMs < 0) {160      elapsedMs = 0;161    }162    const remainingTimeMs = expirationTimeMs - currentTimeMs;163    // Find the earliest timeout of all the timeouts in the ancestor path.164    // TODO: Alternatively, we could store the earliest timeout on the context165    // stack, rather than searching on every suspend.166    let workInProgress = returnFiber;167    let earliestTimeoutMs = -1;168    searchForEarliestTimeout: do {169      if (workInProgress.tag === TimeoutComponent) {170        const current = workInProgress.alternate;171        if (current !== null && current.memoizedState === true) {172          // A parent Timeout already committed in a placeholder state. We173          // need to handle this promise immediately. In other words, we174          // should never suspend inside a tree that already expired.175          earliestTimeoutMs = 0;176          break searchForEarliestTimeout;177        }178        let timeoutPropMs = workInProgress.pendingProps.ms;179        if (typeof timeoutPropMs === 'number') {180          if (timeoutPropMs <= 0) {181            earliestTimeoutMs = 0;182            break searchForEarliestTimeout;183          } else if (184            earliestTimeoutMs === -1 ||185            timeoutPropMs < earliestTimeoutMs186          ) {187            earliestTimeoutMs = timeoutPropMs;188          }189        } else if (earliestTimeoutMs === -1) {190          earliestTimeoutMs = remainingTimeMs;191        }192      }193      workInProgress = workInProgress.return;194    } while (workInProgress !== null);195    // Compute the remaining time until the timeout.196    const msUntilTimeout = earliestTimeoutMs - elapsedMs;197    if (renderExpirationTime === Never || msUntilTimeout > 0) {198      // There's still time remaining.199      markTimeout(root, thenable, msUntilTimeout, renderExpirationTime);200      const onResolveOrReject = () => {201        retrySuspendedRoot(root, renderExpirationTime);202      };203      thenable.then(onResolveOrReject, onResolveOrReject);204      return;205    } else {206      // No time remaining. Need to fallback to placeholder.207      // Find the nearest timeout that can be retried.208      workInProgress = returnFiber;209      do {210        switch (workInProgress.tag) {211          case HostRoot: {212            // The root expired, but no fallback was provided. Throw a213            // helpful error.214            const message =215              renderExpirationTime === Sync216                ? 'A synchronous update was suspended, but no fallback UI ' +217                  'was provided.'218                : 'An update was suspended for longer than the timeout, ' +219                  'but no fallback UI was provided.';220            value = new Error(message);221            break;222          }223          case TimeoutComponent: {224            if ((workInProgress.effectTag & DidCapture) === NoEffect) {225              workInProgress.effectTag |= ShouldCapture;226              const onResolveOrReject = schedulePing.bind(null, workInProgress);227              thenable.then(onResolveOrReject, onResolveOrReject);228              return;229            }230            // Already captured during this render. Continue to the next231            // Timeout ancestor.232            break;233          }234        }235        workInProgress = workInProgress.return;236      } while (workInProgress !== null);237    }238  } else {239    // This is an error.240    markError(root);241    if (242      // Retry (at the same priority) one more time before handling the error.243      // The retry will flush synchronously. (Unless we're already rendering244      // synchronously, in which case move to the next check.)245      (!root.didError && renderExpirationTime !== Sync) ||246      // There's lower priority work. If so, it may have the effect of fixing247      // the exception that was just thrown.248      hasLowerPriorityWork(root, renderExpirationTime)249    ) {250      return;251    }252  }253  // We didn't find a boundary that could handle this type of exception. Start254  // over and traverse parent path again, this time treating the exception255  // as an error.256  value = createCapturedValue(value, sourceFiber);257  let workInProgress = returnFiber;258  do {259    switch (workInProgress.tag) {260      case HostRoot: {261        const errorInfo = value;262        workInProgress.effectTag |= ShouldCapture;263        const update = createRootErrorUpdate(264          workInProgress,265          errorInfo,266          renderExpirationTime,267        );268        enqueueCapturedUpdate(workInProgress, update, renderExpirationTime);269        return;270      }271      case ClassComponent:272        // Capture and retry273        const errorInfo = value;274        const ctor = workInProgress.type;275        const instance = workInProgress.stateNode;276        if (277          (workInProgress.effectTag & DidCapture) === NoEffect &&278          ((typeof ctor.getDerivedStateFromCatch === 'function' &&279            enableGetDerivedStateFromCatch) ||280            (instance !== null &&281              typeof instance.componentDidCatch === 'function' &&282              !isAlreadyFailedLegacyErrorBoundary(instance)))283        ) {284          workInProgress.effectTag |= ShouldCapture;285          // Schedule the error boundary to re-render using updated state286          const update = createClassErrorUpdate(287            workInProgress,288            errorInfo,289            renderExpirationTime,290          );291          enqueueCapturedUpdate(workInProgress, update, renderExpirationTime);292          return;293        }294        break;295      default:296        break;297    }298    workInProgress = workInProgress.return;299  } while (workInProgress !== null);300}...

Using AI Code Generation

1const { createClassErrorUpdate } = require('playwright/lib/utils/errorUtils');2const { createError } = require('playwright/lib/utils/utils');3const { isUnderTest } = require('playwright/lib/utils/utils');4const { serializeError } = require('playwright/lib/utils/utils');5const { debugLogger } = require('playwright/lib/utils/debugLogger');6const { Playwright } = require('playwright/lib/server/playwright');7const { BrowserType } = require('playwright/lib/server/browserType');8const { Browser } = require('playwright/lib/server/browser');9const { BrowserContext } = require('playwright/lib/server/browserContext');10const { Page } = require('playwright/lib/server/page');11const { Frame } = require('playwright/lib/server/frame');12const { Worker } = require('playwright/lib/server/worker');13const { ElectronApplication } = require('playwright/lib/server/electron');14const { Android } = require('playwright/lib/server/android/android');15const { AndroidDevice } = require('playwright/lib/server/android/androidDevice');16const { AndroidBrowser } = require('playwright/lib/server/android/androidBrowser');17const { AndroidBrowserContext } = require('playwright/lib/server/android/androidBrowserContext');18const { AndroidPage } = require('playwright/lib/server/android/androidPage');

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  const error = await page._delegate.createErrorUpdate('Test Error');6  console.log(error);7  await browser.close();8})();9{ Error: Test Error10    at Object.<anonymous> (/home/ashish/Playwright/playwright/test.js:8:23)11    at Module._compile (internal/modules/cjs/loader.js:1137:30)12    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1157:10)13    at Module.load (internal/modules/cjs/loader.js:985:32)14    at Function.Module._load (internal/modules/cjs/loader.js:878:14)15    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12)16    at Object.<anonymous> (/home/ashish/Playwright/playwright/test.js:8:23)17    at Module._compile (internal/modules/cjs/loader.js:1137:30)18    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1157:10)19    at Module.load (internal/modules/cjs/loader.js:985:32)20    at Function.Module._load (internal/modules/cjs/loader.js:878:14)21    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12)22   [ { file: '/home/ashish/Playwright/playwright/test.js',23       functionName: 'Object.<anonymous>' },24     { file: 'internal/modules/cjs/loader.js',25       functionName: 'Module._compile' },26     { file: 'internal/modules/cjs/loader.js',27       functionName: 'Object.Module._extensions..js' },28     { file: 'internal/modules/cjs/loader.js',

Using AI Code Generation

1const { createClassErrorUpdate } = require('playwright/lib/server/frames');2const { createFrame } = require('playwright/lib/server/frames');3const { createExecutionContext } = require('playwright/lib/server/frames');4const { createJSHandle } = require('playwright/lib/server/frames');5const { createWorld } = require('playwright/lib/server/frames');6const { createPage } = require('playwright/lib/server/frames');7const { createConnection } = require('playwright/lib/server/frames');8const { createTransport } = require('playwright/lib/server/frames');9const { createBrowser } = require('playwright/lib/server/frames');10const { createBrowserContext } = require('playwright/lib/server/frames');11const { createServer } = require('playwright/lib/server/frames');12const { createBrowserType } = require('playwright/lib/server/frames');13const { createBrowserServer } = require('playwright/lib/server/frames');14const { createBrowserFetcher } = require('playwright/lib/server/frames');15const { createDeviceDescriptors } = require('playwright/lib/server/frames');16const { createSelectOption } = require('playwright/lib/server/frames');17const { createSelectOptions } = require('playwright/lib/server/frames');18const { createSelectOptionValue } = require('playwright/lib/server/frames');19const { createSelectOptionValues } = require('playwright/lib/server/frames');20const { createSelectOptionText } = require('playwright/lib/server/frames');21const { createSelectOptionTexts } = require('playwright/lib/server/frames');22const { createSelectOptionIndex } = require('playwright/lib/server/frames');23const { createSelectOptionIndexes } = require('playwright/lib/server/frames');24const { createSelectOptionSelected } = require('playwright/lib/server/frames');25const { createSelectOptionSelecteds } = require('playwright/lib/server/frames');26const { createSelectOptionDisabled } = require('playwright/lib/server/frames');27const { createSelectOptionDisableds } = require('playwright/lib/server/frames');28const { createSelectOptionLabel } = require('playwright/lib/server/frames');29const { createSelectOptionLabels } = require('playwright/lib/server/frames');30const { createSelectOptionElement } = require('playwright/lib/server/frames');31const { createSelectOptionElements } =

Using AI Code Generation

1const { createClassErrorUpdate } = require('playwright/lib/server/trace/snapshotter/instrumentation');2const { Page } = require('playwright/lib/server/page');3const { Frame } = require('playwright/lib/server/frame');4const { ElementHandle } = require('playwright/lib/server/dom');5const { JSHandle } = require('playwright/lib/server/jsHandle');6const { ExecutionContext } = require('playwright/lib/server/executionContext');7const page = new Page(null, null, null, null);8const frame = new Frame(page, null, null);9const elementHandle = new ElementHandle(frame, null, null);10const jsHandle = new JSHandle(elementHandle, null);11const executionContext = new ExecutionContext(frame, null);12createClassErrorUpdate(executionContext, 'error', new Error('error message'));13const { createValueErrorUpdate } = require('playwright/lib/server/trace/snapshotter/instrumentation');14const { Page } = require('playwright/lib/server/page');15const { Frame } = require('playwright/lib/server/frame');16const { ElementHandle } = require('playwright/lib/server/dom');17const { JSHandle } = require('playwright/lib/server/jsHandle');18const { ExecutionContext } = require('playwright/lib/server/executionContext');19const page = new Page(null, null, null, null);20const frame = new Frame(page, null, null);21const elementHandle = new ElementHandle(frame, null, null);22const jsHandle = new JSHandle(elementHandle, null);23const executionContext = new ExecutionContext(frame, null);24createValueErrorUpdate(jsHandle, 'error', new Error('error message'));25const { createPromiseErrorUpdate } = require('playwright/lib/server/trace/snapshotter/instrumentation');26const { Page } = require('playwright/lib/server/page');27const { Frame } = require('playwright/lib/server/frame');28const { ElementHandle } = require('playwright/lib/server/dom');29const { JSHandle } = require('playwright/lib/server/jsHandle');30const { ExecutionContext } = require('playwright/lib/server/executionContext');31const page = new Page(null, null, null, null);32const frame = new Frame(page, null, null);33const elementHandle = new ElementHandle(frame, null, null);

Using AI Code Generation

1const { createClassErrorUpdate } = require('playwright/lib/utils/stackTrace');2const { Error } = require('playwright/lib/utils/stackTrace');3const error = new Error('test error');4const errorUpdate = createClassErrorUpdate(error, 'TestClass');5console.log(errorUpdate.stack);6const { createErrorUpdate } = require('playwright/lib/utils/stackTrace');7const { Error } = require('playwright/lib/utils/stackTrace');8const error = new Error('test error');9const errorUpdate = createErrorUpdate(error);10console.log(errorUpdate.stack);11    at Object.<anonymous> (/Users/username/Downloads/test.js:4:12)12    at Module._compile (internal/modules/cjs/loader.js:1137:30)13    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1157:10)14    at Module.load (internal/modules/cjs/loader.js:985:32)15    at Function.Module._load (internal/modules/cjs/loader.js:878:14)16    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12)17    at Object.<anonymous> (/Users/username/Downloads/test.js:11:12)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)23Your name to display (optional):24Your name to display (optional):

Using AI Code Generation

1const { createClassErrorUpdate } = require('playwright/lib/utils/stackTrace');2const { Error } = require('playwright/lib/utils/error');3const error = new Error('CustomError', 'CustomError', 'CustomError');4const errorUpdate = createClassErrorUpdate(error, 'CustomErrorUpdate', 'CustomErrorUpdate', 'CustomErrorUpdate');5console.log(errorUpdate);6console.log(errorUpdate.stack);7console.log(errorUpdate.error);8console.log(errorUpdate.error.stack);9console.log(errorUpdate.error.name);10console.log(errorUpdate.error.message);11console.log(errorUpdate.error.code);12console.log(errorUpdate.error.data);13console.log(errorUpdate.error.error);14console.log(errorUpdate.error.stack);15console.log(errorUpdate.error.file);16console.log(errorUpdate.error.line);17console.log(errorUpdate.error.column);18console.log(errorUpdate.name);19console.log(errorUpdate.message);20console.log(errorUpdate.code);21console.log(errorUpdate.data);22console.log(errorUpdate.error);23console.log(errorUpdate.stack);24console.log(errorUpdate.file);25console.log(errorUpdate.line);26console.log(errorUpdate.column);27console.log(errorUpdate.errorUpdate);28console.log(errorUpdate.errorUpdate.stack);29console.log(errorUpdate.errorUpdate.name);30console.log(errorUpdate.errorUpdate.message);

Using AI Code Generation

1const { createClassErrorUpdate } = require('playwright/lib/server/errors');2const { error } = createClassErrorUpdate('TestError', 'TestError description');3throw error;4const { createErrorUpdate } = require('playwright/lib/server/errors');5const { error } = createErrorUpdate('TestError', 'TestError description');6throw error;7const { createError } = require('playwright/lib/server/errors');8const error = createError('TestError', 'TestError description');9throw error;10const { createError } = require('playwright/lib/server/errors');11const error = createError('TestError');12throw error;13const { createError } = require('playwright/lib/server/errors');14const error = createError('TestError');15throw error;16const { createError } = require('playwright/lib/server/errors');17const error = createError('TestError');18throw error;19const { createError } = require('playwright/lib/server/errors');20const error = createError('TestError');21throw error;22const { createError } = require('playwright/lib/server/errors');23const error = createError('TestError');24throw error;25const { createError } = require('playwright/lib/server/errors');26const error = createError('TestError');27throw error;28const { createError } = require('playwright/lib/server/errors');29const error = createError('TestError');30throw error;31const { createError } = require('playwright/lib/server/errors');32const error = createError('TestError');33throw error;34const { createError } = require('playwright/lib/server/errors');35const error = createError('TestError');36throw error;

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.