Best JavaScript code snippet using playwright-internal
ReactErrorUtils-test.internal.js
Source:ReactErrorUtils-test.internal.js  
...27    expect(() => ReactErrorUtils.rethrowCaughtError()).toThrow(err);28  });29  it(`should call the callback the passed arguments`, () => {30    const callback = jest.fn();31    ReactErrorUtils.invokeGuardedCallback(32      'foo',33      callback,34      null,35      'arg1',36      'arg2',37    );38    expect(callback).toBeCalledWith('arg1', 'arg2');39  });40  it(`should call the callback with the provided context`, () => {41    const context = {didCall: false};42    ReactErrorUtils.invokeGuardedCallback(43      'foo',44      function() {45        this.didCall = true;46      },47      context,48    );49    expect(context.didCall).toBe(true);50  });51  it(`should catch errors`, () => {52    const error = new Error();53    const returnValue = ReactErrorUtils.invokeGuardedCallback(54      'foo',55      function() {56        throw error;57      },58      null,59      'arg1',60      'arg2',61    );62    expect(returnValue).toBe(undefined);63    expect(ReactErrorUtils.hasCaughtError()).toBe(true);64    expect(ReactErrorUtils.clearCaughtError()).toBe(error);65  });66  it(`should return false from clearCaughtError if no error was thrown`, () => {67    const callback = jest.fn();68    ReactErrorUtils.invokeGuardedCallback('foo', callback, null);69    expect(ReactErrorUtils.hasCaughtError()).toBe(false);70    expect(ReactErrorUtils.clearCaughtError).toThrow('no error was captured');71  });72  it(`can nest with same debug name`, () => {73    const err1 = new Error();74    let err2;75    const err3 = new Error();76    let err4;77    ReactErrorUtils.invokeGuardedCallback(78      'foo',79      function() {80        ReactErrorUtils.invokeGuardedCallback(81          'foo',82          function() {83            throw err1;84          },85          null,86        );87        err2 = ReactErrorUtils.clearCaughtError();88        throw err3;89      },90      null,91    );92    err4 = ReactErrorUtils.clearCaughtError();93    expect(err2).toBe(err1);94    expect(err4).toBe(err3);95  });96  it(`handles nested errors`, () => {97    const err1 = new Error();98    let err2;99    ReactErrorUtils.invokeGuardedCallback(100      'foo',101      function() {102        ReactErrorUtils.invokeGuardedCallback(103          'foo',104          function() {105            throw err1;106          },107          null,108        );109        err2 = ReactErrorUtils.clearCaughtError();110      },111      null,112    );113    // Returns null because inner error was already captured114    expect(ReactErrorUtils.hasCaughtError()).toBe(false);115    expect(err2).toBe(err1);116  });117  it('handles nested errors in separate renderers', () => {118    const ReactErrorUtils1 = require('shared/ReactErrorUtils');119    jest.resetModules();120    const ReactErrorUtils2 = require('shared/ReactErrorUtils');121    expect(ReactErrorUtils1).not.toEqual(ReactErrorUtils2);122    let ops = [];123    ReactErrorUtils1.invokeGuardedCallback(124      null,125      () => {126        ReactErrorUtils2.invokeGuardedCallback(127          null,128          () => {129            throw new Error('nested error');130          },131          null,132        );133        // ReactErrorUtils2 should catch the error134        ops.push(ReactErrorUtils2.hasCaughtError());135        ops.push(ReactErrorUtils2.clearCaughtError().message);136      },137      null,138    );139    // ReactErrorUtils1 should not catch the error140    ops.push(ReactErrorUtils1.hasCaughtError());141    expect(ops).toEqual([true, 'nested error', false]);142  });143  if (!__DEV__) {144    // jsdom doesn't handle this properly, but Chrome and Firefox should. Test145    // this with a fixture.146    it('catches null values', () => {147      ReactErrorUtils.invokeGuardedCallback(148        null,149        function() {150          throw null; // eslint-disable-line no-throw-literal151        },152        null,153      );154      expect(ReactErrorUtils.hasCaughtError()).toBe(true);155      expect(ReactErrorUtils.clearCaughtError()).toBe(null);156    });157  }158  it(`can be shimmed`, () => {159    const ops = [];160    jest.resetModules();161    jest.mock(162      'shared/invokeGuardedCallbackImpl',163      () =>164        function invokeGuardedCallback(name, func, context, a) {165          ops.push(a);166          try {167            func.call(context, a);168          } catch (error) {169            this.onError(error);170          }171        },172    );173    ReactErrorUtils = require('shared/ReactErrorUtils');174    try {175      const err = new Error('foo');176      const callback = function() {177        throw err;178      };...ReactErrorUtils-test.js
Source:ReactErrorUtils-test.js  
...50      expect(() => ReactErrorUtils.rethrowCaughtError()).toThrow(err);51    });52    it(`should call the callback the passed arguments (${environment})`, () => {53      var callback = jest.fn();54      ReactErrorUtils.invokeGuardedCallback(55        'foo',56        callback,57        null,58        'arg1',59        'arg2',60      );61      expect(callback).toBeCalledWith('arg1', 'arg2');62    });63    it(`should call the callback with the provided context (${environment})`, () => {64      var context = {didCall: false};65      ReactErrorUtils.invokeGuardedCallback(66        'foo',67        function() {68          this.didCall = true;69        },70        context,71      );72      expect(context.didCall).toBe(true);73    });74    it(`should return a caught error (${environment})`, () => {75      const error = new Error();76      const returnValue = ReactErrorUtils.invokeGuardedCallback(77        'foo',78        function() {79          throw error;80        },81        null,82        'arg1',83        'arg2',84      );85      expect(returnValue).toBe(error);86    });87    it(`should return null if no error is thrown (${environment})`, () => {88      var callback = jest.fn();89      const returnValue = ReactErrorUtils.invokeGuardedCallback(90        'foo',91        callback,92        null,93      );94      expect(returnValue).toBe(null);95    });96    it(`can nest with same debug name (${environment})`, () => {97      const err1 = new Error();98      let err2;99      const err3 = new Error();100      const err4 = ReactErrorUtils.invokeGuardedCallback(101        'foo',102        function() {103          err2 = ReactErrorUtils.invokeGuardedCallback(104            'foo',105            function() {106              throw err1;107            },108            null,109          );110          throw err3;111        },112        null,113      );114      expect(err2).toBe(err1);115      expect(err4).toBe(err3);116    });117    it(`does not return nested errors (${environment})`, () => {118      const err1 = new Error();119      let err2;120      const err3 = ReactErrorUtils.invokeGuardedCallback(121        'foo',122        function() {123          err2 = ReactErrorUtils.invokeGuardedCallback(124            'foo',125            function() {126              throw err1;127            },128            null,129          );130        },131        null,132      );133      expect(err3).toBe(null); // Returns null because inner error was already captured134      expect(err2).toBe(err1);135    });136    it(`can be shimmed (${environment})`, () => {137      const ops = [];...ReactErrorUtils.js
Source:ReactErrorUtils.js  
...81  injection: {82    injectErrorUtils(injectedErrorUtils: Object) {83      invariant(84        typeof injectedErrorUtils.invokeGuardedCallback === 'function',85        'Injected invokeGuardedCallback() must be a function.',86      );87      invokeGuardedCallback = injectedErrorUtils.invokeGuardedCallback;88    },89  },90  invokeGuardedCallback: function<A, B, C, D, E, F, Context>(91    name: string | null,92    func: (a: A, b: B, c: C, d: D, e: E, f: F) => void,93    context: Context,94    a: A,95    b: B,96    c: C,97    d: D,98    e: E,99    f: F,...c467a70e313f4f8ceaecdba478ee69cc667dcdReactErrorUtils.js
Source:c467a70e313f4f8ceaecdba478ee69cc667dcdReactErrorUtils.js  
1'use strict';2var invariant = require('fbjs/lib/invariant');3var caughtError = null;4var _invokeGuardedCallback = function invokeGuardedCallback(name, func, context, a, b, c, d, e, f) {5  var funcArgs = Array.prototype.slice.call(arguments, 3);6  try {7    func.apply(context, funcArgs);8  } catch (error) {9    return error;10  }11  return null;12};13if (__DEV__) {14  if (typeof window !== 'undefined' && typeof window.dispatchEvent === 'function' && typeof document !== 'undefined' && typeof document.createEvent === 'function') {15    var fakeNode = document.createElement('react');16    var depth = 0;17    _invokeGuardedCallback = function invokeGuardedCallback(name, func, context, a, b, c, d, e, f) {18      depth++;19      var thisDepth = depth;20      var funcArgs = Array.prototype.slice.call(arguments, 3);21      var boundFunc = function boundFunc() {22        func.apply(context, funcArgs);23      };24      var fakeEventError = null;25      var onFakeEventError = function onFakeEventError(event) {26        if (depth === thisDepth) {27          fakeEventError = event.error;28        }29      };30      var evtType = 'react-' + (name ? name : 'invokeguardedcallback') + '-' + depth;31      window.addEventListener('error', onFakeEventError);32      fakeNode.addEventListener(evtType, boundFunc, false);33      var evt = document.createEvent('Event');34      evt.initEvent(evtType, false, false);35      fakeNode.dispatchEvent(evt);36      fakeNode.removeEventListener(evtType, boundFunc, false);37      window.removeEventListener('error', onFakeEventError);38      depth--;39      return fakeEventError;40    };41  }42}43var _rethrowCaughtError = function _rethrowCaughtError() {44  if (caughtError) {45    var error = caughtError;46    caughtError = null;47    throw error;48  }49};50var ReactErrorUtils = {51  injection: {52    injectErrorUtils: function injectErrorUtils(injectedErrorUtils) {53      invariant(typeof injectedErrorUtils.invokeGuardedCallback === 'function', 'Injected invokeGuardedCallback() must be a function.');54      _invokeGuardedCallback = injectedErrorUtils.invokeGuardedCallback;55    }56  },57  invokeGuardedCallback: function invokeGuardedCallback(name, func, context, a, b, c, d, e, f) {58    return _invokeGuardedCallback.apply(this, arguments);59  },60  invokeGuardedCallbackAndCatchFirstError: function invokeGuardedCallbackAndCatchFirstError(name, func, context, a, b, c, d, e, f) {61    var error = ReactErrorUtils.invokeGuardedCallback.apply(this, arguments);62    if (error !== null && caughtError === null) {63      caughtError = error;64    }65  },66  rethrowCaughtError: function rethrowCaughtError() {67    return _rethrowCaughtError.apply(this, arguments);68  }69};...b8b4a6d71d0e4738c063170d75e20d24af59ceReactErrorUtils.js
Source:b8b4a6d71d0e4738c063170d75e20d24af59ceReactErrorUtils.js  
1'use strict';2var invariant = require('fbjs/lib/invariant');3var caughtError = null;4var _invokeGuardedCallback = function invokeGuardedCallback(name, func, context, a, b, c, d, e, f) {5  var funcArgs = Array.prototype.slice.call(arguments, 3);6  try {7    func.apply(context, funcArgs);8  } catch (error) {9    return error;10  }11  return null;12};13if (__DEV__) {14  if (typeof window !== 'undefined' && typeof window.dispatchEvent === 'function' && typeof document !== 'undefined' && typeof document.createEvent === 'function') {15    var fakeNode = document.createElement('react');16    var depth = 0;17    _invokeGuardedCallback = function invokeGuardedCallback(name, func, context, a, b, c, d, e, f) {18      depth++;19      var thisDepth = depth;20      var funcArgs = Array.prototype.slice.call(arguments, 3);21      var boundFunc = function boundFunc() {22        func.apply(context, funcArgs);23      };24      var fakeEventError = null;25      var onFakeEventError = function onFakeEventError(event) {26        if (depth === thisDepth) {27          fakeEventError = event.error;28        }29      };30      var evtType = 'react-' + (name ? name : 'invokeguardedcallback') + '-' + depth;31      window.addEventListener('error', onFakeEventError);32      fakeNode.addEventListener(evtType, boundFunc, false);33      var evt = document.createEvent('Event');34      evt.initEvent(evtType, false, false);35      fakeNode.dispatchEvent(evt);36      fakeNode.removeEventListener(evtType, boundFunc, false);37      window.removeEventListener('error', onFakeEventError);38      depth--;39      return fakeEventError;40    };41  }42}43var _rethrowCaughtError = function _rethrowCaughtError() {44  if (caughtError) {45    var error = caughtError;46    caughtError = null;47    throw error;48  }49};50var ReactErrorUtils = {51  injection: {52    injectErrorUtils: function injectErrorUtils(injectedErrorUtils) {53      invariant(typeof injectedErrorUtils.invokeGuardedCallback === 'function', 'Injected invokeGuardedCallback() must be a function.');54      _invokeGuardedCallback = injectedErrorUtils.invokeGuardedCallback;55    }56  },57  invokeGuardedCallback: function invokeGuardedCallback(name, func, context, a, b, c, d, e, f) {58    return _invokeGuardedCallback.apply(this, arguments);59  },60  invokeGuardedCallbackAndCatchFirstError: function invokeGuardedCallbackAndCatchFirstError(name, func, context, a, b, c, d, e, f) {61    var error = ReactErrorUtils.invokeGuardedCallback.apply(this, arguments);62    if (error !== null && caughtError === null) {63      caughtError = error;64    }65  },66  rethrowCaughtError: function rethrowCaughtError() {67    return _rethrowCaughtError.apply(this, arguments);68  }69};...40430454cfd090ab0cc085546834d6f35de7feReactErrorUtils.js
Source:40430454cfd090ab0cc085546834d6f35de7feReactErrorUtils.js  
1'use strict';2var invariant = require('fbjs/lib/invariant');3var caughtError = null;4var _invokeGuardedCallback = function invokeGuardedCallback(name, func, context, a, b, c, d, e, f) {5  var funcArgs = Array.prototype.slice.call(arguments, 3);6  try {7    func.apply(context, funcArgs);8  } catch (error) {9    return error;10  }11  return null;12};13if (__DEV__) {14  if (typeof window !== 'undefined' && typeof window.dispatchEvent === 'function' && typeof document !== 'undefined' && typeof document.createEvent === 'function') {15    var fakeNode = document.createElement('react');16    var depth = 0;17    _invokeGuardedCallback = function invokeGuardedCallback(name, func, context, a, b, c, d, e, f) {18      depth++;19      var thisDepth = depth;20      var funcArgs = Array.prototype.slice.call(arguments, 3);21      var boundFunc = function boundFunc() {22        func.apply(context, funcArgs);23      };24      var fakeEventError = null;25      var onFakeEventError = function onFakeEventError(event) {26        if (depth === thisDepth) {27          fakeEventError = event.error;28        }29      };30      var evtType = 'react-' + (name ? name : 'invokeguardedcallback') + '-' + depth;31      window.addEventListener('error', onFakeEventError);32      fakeNode.addEventListener(evtType, boundFunc, false);33      var evt = document.createEvent('Event');34      evt.initEvent(evtType, false, false);35      fakeNode.dispatchEvent(evt);36      fakeNode.removeEventListener(evtType, boundFunc, false);37      window.removeEventListener('error', onFakeEventError);38      depth--;39      return fakeEventError;40    };41  }42}43var _rethrowCaughtError = function _rethrowCaughtError() {44  if (caughtError) {45    var error = caughtError;46    caughtError = null;47    throw error;48  }49};50var ReactErrorUtils = {51  injection: {52    injectErrorUtils: function injectErrorUtils(injectedErrorUtils) {53      invariant(typeof injectedErrorUtils.invokeGuardedCallback === 'function', 'Injected invokeGuardedCallback() must be a function.');54      _invokeGuardedCallback = injectedErrorUtils.invokeGuardedCallback;55    }56  },57  invokeGuardedCallback: function invokeGuardedCallback(name, func, context, a, b, c, d, e, f) {58    return _invokeGuardedCallback.apply(this, arguments);59  },60  invokeGuardedCallbackAndCatchFirstError: function invokeGuardedCallbackAndCatchFirstError(name, func, context, a, b, c, d, e, f) {61    var error = ReactErrorUtils.invokeGuardedCallback.apply(this, arguments);62    if (error !== null && caughtError === null) {63      caughtError = error;64    }65  },66  rethrowCaughtError: function rethrowCaughtError() {67    return _rethrowCaughtError.apply(this, arguments);68  }69};...466bfbReactErrorUtils.js
Source:466bfbReactErrorUtils.js  
1'use strict';2var caughtError = null;3function invokeGuardedCallback(name, func, a) {4  try {5    func(a);6  } catch (x) {7    if (caughtError === null) {8      caughtError = x;9    }10  }11}12var ReactErrorUtils = {13  invokeGuardedCallback: invokeGuardedCallback,14  invokeGuardedCallbackWithCatch: invokeGuardedCallback,15  rethrowCaughtError: function rethrowCaughtError() {16    if (caughtError) {17      var error = caughtError;...Using AI Code Generation
1const { invokeGuardedCallback } = require('playwright/lib/server/supplements/utils/invokeGuardedCallback');2const { ErrorWithCallFrames } = require('playwright/lib/server/supplements/utils/errorWithCallFrames');3const { invokeGuardedCallback } = require('playwright/lib/server/supplements/utils/invokeGuardedCallback');4const { ErrorWithCallFrames } = require('playwright/lib/server/supplements/utils/errorWithCallFrames');5const { invokeGuardedCallback } = require('playwright/lib/server/supplements/utils/invokeGuardedCallback');6const { ErrorWithCallFrames } = require('playwright/lib/server/supplements/utils/errorWithCallFrames');7const { invokeGuardedCallback } = require('playwright/lib/server/supplements/utils/invokeGuardedCallback');8const { ErrorWithCallFrames } = require('playwright/lib/server/supplements/utils/errorWithCallFrames');9const { invokeGuardedCallback } = require('playwright/lib/server/supplements/utils/invokeGuardedCallback');10const { ErrorWithCallFrames } = require('playwright/lib/server/supplements/utils/errorWithCallFrames');11const { invokeGuardedCallback } = require('playwright/lib/server/supplements/utils/invokeGuardedCallback');12const { ErrorWithCallFrames } = require('playwright/lib/server/supplements/utils/errorWithCallFrames');13const { invokeGuardedCallback } = require('playwright/lib/server/supplements/utils/invokeGuardedCallback');14const { ErrorWithCallFrames } = require('playwright/lib/server/supplements/utils/errorWithCallFrames');15const { invokeGuardedCallback } = require('playwright/lib/server/supplements/utils/invokeGuardedCallback');16const { ErrorWithCallFrames } = require('playwright/lib/server/supplements/utils/errorWithCallFrames');Using AI Code Generation
1const { invokeGuardedCallback } = require('playwright/lib/internal/stackTrace');2const { test } = require('@playwright/test');3test('test', async ({ page }) => {4  await page.setContent(`<button onclick="throw new Error('error')">Click me</button>`);5  await page.click('button');6  const error = await page.evaluate(() => {7    let error;8    invokeGuardedCallback('click', () => {9      throw new Error('error');10    });11    if (didError()) {12      error = clearError();13    }14    return error;15  });16  console.log(error);17});18### 2. Using the `page.on('pageerror')` event19const { test } = require('@playwright/test');20test('test', async ({ page }) => {21  await page.setContent(`<button onclick="throw new Error('error')">Click me</button>`);22  await page.click('button');23  const error = new Promise((resolve) => page.on('pageerror', resolve));24  console.log(error);25});26### 3. Using the `page.on('dialog')` event27const { test } = require('@playwright/test');28test('test', async ({ page }) => {29  await page.setContent(`<button onclick="alert('error')">Click me</button>`);30  await page.click('button');31  const dialog = new Promise((resolve) => page.on('dialog', resolve));32  console.log(dialog);33});34### 4. Using the `page.on('requestfailed')` event35const { test } = require('@playwright/test');36test('test', async ({ page }) => {37  await page.click('button');38  const request = new Promise((resolve) => page.on('requestfailed', resolve));39  console.log(request);40});Using AI Code Generation
1const { invokeGuardedCallback } = require('playwright-core/lib/utils/stackTrace');2const { expect } = require('chai');3describe('playwright', () => {4  it('invokeGuardedCallback', async () => {5    const error = new Error('test error');6    invokeGuardedCallback('test', () => {7      throw error;8    });9    expect(invokeGuardedCallback).to.throw(error);10  });11});Using AI Code Generation
1const { invokeGuardedCallback } = require('playwright/lib/internal/stackTrace');2const { ErrorWithStack } = require('playwright/lib/internal/errors');3const { _setConsoleForTest } = require('playwright/lib/internal/console');4const { ConsoleMessage } = require('playwright/lib/internal/consoleMessage');5const consoleApi = _setConsoleForTest({6  onMessage: (message) => console.log(message.text()),7});8const consoleMessage = new ConsoleMessage(consoleApi, 'log', ['Hello world!'], [], 'log', 0);9invokeGuardedCallback('test', consoleMessage, () => {10  throw new Error('Error in callback');11});12if (invokeGuardedCallback.hasCaughtError()) {13  const error = invokeGuardedCallback.getCaughtError();14  if (error instanceof ErrorWithStack) {15    console.log(error.stack);16  } else {17    console.log(error);18  }19}20[Apache 2.0](./LICENSE)Using AI Code Generation
1const { invokeGuardedCallback } = require('playwright/lib/utils/utils');2const { assert } = require('chai');3describe('Playwright', function () {4  it('should not throw error', async () => {5    const result = invokeGuardedCallback(() => {6      throw new Error('Some error');7    });8    assert.strictEqual(result, true);9  });10});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.
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