Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Register for FREE! Join TestMu Conference

How to use captureRawStack method in Playwright Internal

Best JavaScript code snippet using playwright-internal

channelOwner.js

Source:channelOwner.js

1"use strict";2Object.defineProperty(exports, "__esModule", {3  value: true4});5exports.renderCallWithParams = renderCallWithParams;6exports.ChannelOwner = void 0;7var _events = require("events");8var _validator = require("../protocol/validator");9var _debugLogger = require("../utils/debugLogger");10var _stackTrace = require("../utils/stackTrace");11var _utils = require("../utils/utils");12var _zones = require("../utils/zones");13/**14 * Copyright (c) Microsoft Corporation.15 *16 * Licensed under the Apache License, Version 2.0 (the 'License");17 * you may not use this file except in compliance with the License.18 * You may obtain a copy of the License at19 *20 * http://www.apache.org/licenses/LICENSE-2.021 *22 * Unless required by applicable law or agreed to in writing, software23 * distributed under the License is distributed on an "AS IS" BASIS,24 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.25 * See the License for the specific language governing permissions and26 * limitations under the License.27 */28class ChannelOwner extends _events.EventEmitter {29  constructor(parent, type, guid, initializer, instrumentation) {30    var _this$_parent;31    super();32    this._connection = void 0;33    this._parent = void 0;34    this._objects = new Map();35    this._type = void 0;36    this._guid = void 0;37    this._channel = void 0;38    this._initializer = void 0;39    this._logger = void 0;40    this._instrumentation = void 0;41    this.setMaxListeners(0);42    this._connection = parent instanceof ChannelOwner ? parent._connection : parent;43    this._type = type;44    this._guid = guid;45    this._parent = parent instanceof ChannelOwner ? parent : undefined;46    this._instrumentation = instrumentation || ((_this$_parent = this._parent) === null || _this$_parent === void 0 ? void 0 : _this$_parent._instrumentation);47    this._connection._objects.set(guid, this);48    if (this._parent) {49      this._parent._objects.set(guid, this);50      this._logger = this._parent._logger;51    }52    this._channel = this._createChannel(new _events.EventEmitter());53    this._initializer = initializer;54  }55  _dispose() {56    // Clean up from parent and connection.57    if (this._parent) this._parent._objects.delete(this._guid);58    this._connection._objects.delete(this._guid); // Dispose all children.59    for (const object of [...this._objects.values()]) object._dispose();60    this._objects.clear();61  }62  _debugScopeState() {63    return {64      _guid: this._guid,65      objects: Array.from(this._objects.values()).map(o => o._debugScopeState())66    };67  }68  _createChannel(base) {69    const channel = new Proxy(base, {70      get: (obj, prop) => {71        if (prop === 'debugScopeState') return params => this._connection.sendMessageToServer(this, prop, params, null);72        if (typeof prop === 'string') {73          const validator = scheme[paramsName(this._type, prop)];74          if (validator) {75            return params => {76              return this._wrapApiCall(apiZone => {77                const {78                  stackTrace,79                  csi,80                  callCookie81                } = apiZone.reported ? {82                  csi: undefined,83                  callCookie: undefined,84                  stackTrace: null85                } : apiZone;86                apiZone.reported = true;87                if (csi && stackTrace && stackTrace.apiName) csi.onApiCallBegin(renderCallWithParams(stackTrace.apiName, params), stackTrace, callCookie);88                return this._connection.sendMessageToServer(this, prop, validator(params, ''), stackTrace);89              });90            };91          }92        }93        return obj[prop];94      }95    });96    channel._object = this;97    return channel;98  }99  async _wrapApiCall(func, isInternal = false) {100    const logger = this._logger;101    const stack = (0, _stackTrace.captureRawStack)();102    const apiZone = _zones.zones.zoneData('apiZone', stack);103    if (apiZone) return func(apiZone);104    const stackTrace = (0, _stackTrace.captureStackTrace)(stack);105    if (isInternal) delete stackTrace.apiName;106    const csi = isInternal ? undefined : this._instrumentation;107    const callCookie = {};108    const {109      apiName,110      frameTexts111    } = stackTrace;112    try {113      logApiCall(logger, `=> ${apiName} started`, isInternal);114      const apiZone = {115        stackTrace,116        isInternal,117        reported: false,118        csi,119        callCookie120      };121      const result = await _zones.zones.run('apiZone', apiZone, async () => {122        return await func(apiZone);123      });124      csi === null || csi === void 0 ? void 0 : csi.onApiCallEnd(callCookie);125      logApiCall(logger, `<= ${apiName} succeeded`, isInternal);126      return result;127    } catch (e) {128      const innerError = (process.env.PWDEBUGIMPL || (0, _utils.isUnderTest)()) && e.stack ? '\n<inner error>\n' + e.stack : '';129      e.message = apiName + ': ' + e.message;130      e.stack = e.message + '\n' + frameTexts.join('\n') + innerError;131      csi === null || csi === void 0 ? void 0 : csi.onApiCallEnd(callCookie, e);132      logApiCall(logger, `<= ${apiName} failed`, isInternal);133      throw e;134    }135  }136  toJSON() {137    // Jest's expect library tries to print objects sometimes.138    // RPC objects can contain links to lots of other objects,139    // which can cause jest to crash. Let's help it out140    // by just returning the important values.141    return {142      _type: this._type,143      _guid: this._guid144    };145  }146}147exports.ChannelOwner = ChannelOwner;148function logApiCall(logger, message, isNested) {149  if (isNested) return;150  if (logger && logger.isEnabled('api', 'info')) logger.log('api', 'info', message, [], {151    color: 'cyan'152  });153  _debugLogger.debugLogger.log('api', message);154}155function paramsName(type, method) {156  return type + method[0].toUpperCase() + method.substring(1) + 'Params';157}158const paramsToRender = ['url', 'selector', 'text', 'key'];159function renderCallWithParams(apiName, params) {160  const paramsArray = [];161  if (params) {162    for (const name of paramsToRender) {163      if (params[name]) paramsArray.push(params[name]);164    }165  }166  const paramsText = paramsArray.length ? '(' + paramsArray.join(', ') + ')' : '';167  return apiName + paramsText;168}169const tChannel = name => {170  return (arg, path) => {171    if (arg._object instanceof ChannelOwner && (name === '*' || arg._object._type === name)) return {172      guid: arg._object._guid173    };174    throw new _validator.ValidationError(`${path}: expected ${name}`);175  };176};...

stackTrace.js

Source:stackTrace.js

...41const TEST_DIR_SRC = _path.default.resolve(CORE_DIR, '..', 'playwright-test');42const TEST_DIR_LIB = _path.default.resolve(CORE_DIR, '..', '@playwright', 'test');43const COVERAGE_PATH = _path.default.join(CORE_DIR, '..', '..', 'tests', 'config', 'coverage.js');44const WS_LIB = _path.default.relative(process.cwd(), _path.default.dirname(require.resolve('ws')));45function captureRawStack() {46  const stackTraceLimit = Error.stackTraceLimit;47  Error.stackTraceLimit = 30;48  const error = new Error();49  const stack = error.stack;50  Error.stackTraceLimit = stackTraceLimit;51  return stack;52}53function isInternalFileName(file, functionName) {54  // Node 16+ has node:internal.55  if (file.startsWith('internal') || file.startsWith('node:')) return true; // EventEmitter.emit has 'events.js' file.56  if (file === 'events.js' && functionName !== null && functionName !== void 0 && functionName.endsWith('emit')) return true; // Node 1257  if (file === '_stream_readable.js' || file === '_stream_writable.js') return true;58  if (file.startsWith(WS_LIB)) return true;59  return false;60}61function captureStackTrace(rawStack) {62  const stack = rawStack || captureRawStack();63  const isTesting = (0, _utils.isUnderTest)();64  let parsedFrames = stack.split('\n').map(line => {65    const frame = stackUtils.parseLine(line);66    if (!frame || !frame.file) return null;67    if (isInternalFileName(frame.file, frame.function)) return null; // Workaround for https://github.com/tapjs/stack-utils/issues/6068    let fileName;69    if (frame.file.startsWith('file://')) fileName = new URL(frame.file).pathname;else fileName = _path.default.resolve(process.cwd(), frame.file);70    if (isTesting && fileName.includes(COVERAGE_PATH)) return null;71    const inCore = fileName.startsWith(CORE_LIB) || fileName.startsWith(CORE_SRC);72    const parsed = {73      frame: {74        file: fileName,75        line: frame.line,76        column: frame.column,...

zones.js

Source:zones.js

1"use strict";2Object.defineProperty(exports, "__esModule", {3  value: true4});5exports.zones = void 0;6var _stackTrace = require("./stackTrace");7/**8 * Copyright (c) Microsoft Corporation.9 *10 * Licensed under the Apache License, Version 2.0 (the "License");11 * you may not use this file except in compliance with the License.12 * You may obtain a copy of the License at13 *14 * http://www.apache.org/licenses/LICENSE-2.015 *16 * Unless required by applicable law or agreed to in writing, software17 * distributed under the License is distributed on an "AS IS" BASIS,18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.19 * See the License for the specific language governing permissions and20 * limitations under the License.21 */22class ZoneManager {23  constructor() {24    this.lastZoneId = 0;25    this._zones = new Map();26  }27  async run(type, data, func) {28    const zone = new Zone(this, ++this.lastZoneId, type, data);29    this._zones.set(zone.id, zone);30    return zone.run(func);31  }32  zoneData(type, rawStack) {33    const stack = rawStack || (0, _stackTrace.captureRawStack)();34    for (const line of stack.split('\n')) {35      const index = line.indexOf('__PWZONE__[');36      if (index !== -1) {37        const zoneId = +line.substring(index + '__PWZONE__['.length, line.indexOf(']', index));38        const zone = this._zones.get(zoneId);39        if (zone && zone.type === type) return zone.data;40      }41    }42    return null;43  }44}45class Zone {46  constructor(manager, id, type, data) {47    this._manager = void 0;48    this.id = void 0;49    this.type = void 0;50    this.data = {};51    this._manager = manager;52    this.id = id;53    this.type = type;54    this.data = data;55  }56  async run(func) {57    Object.defineProperty(func, 'name', {58      value: `__PWZONE__[${this.id}]`59    });60    try {61      return await func();62    } finally {63      this._manager._zones.delete(this.id);64    }65  }66}67const zones = new ZoneManager();...

Using AI Code Generation

1const playwright = require('playwright');2(async () => {3  const browser = await playwright['chromium'].launch();4  const page = await browser.newPage();5  const stack = await page.evaluate(() => {6    return window['playwright'].captureRawStack();7  });8  console.log(stack);9  await browser.close();10})();

Using AI Code Generation

1const playwright = require('playwright');2(async () => {3  const browser = await playwright.chromium.launch();4  const page = await browser.newPage();5  const stack = await page.evaluate(() => {6    return window.__playwright__internal__captureRawStack();7  });8  console.log(stack);9  await browser.close();10})();11  {12  }13const playwright = require('playwright');14(async () => {15  const browser = await playwright.chromium.launch();16  const page = await browser.newPage();17  const stack = await page.evaluate(() => {18    return window.__playwright__internal__captureRawStack();19  });20  console.log(stack);21  await browser.close();22})();23  {24  }25const playwright = require('playwright');26(async () => {27  const browser = await playwright.chromium.launch();28  const page = await browser.newPage();29  const stack = await page.evaluate(() => {30    return window.__playwright__internal__captureRawStack();31  });

Using AI Code Generation

1const { captureRawStack } = require('playwright/lib/internal/stacks');2const stack = captureRawStack(1);3console.log(stack);4const { captureStack } = require('playwright/lib/internal/stacks');5const stack = captureStack(1);6console.log(stack);7const { parseStack } = require('playwright/lib/internal/stacks');8const stack = parseStack('Error: test');9console.log(stack);10const { parseStackTrace } = require('playwright/lib/internal/stacks');11const stack = parseStackTrace('Error: test');12console.log(stack);13const { rewriteErrorMessage } = require('playwright/lib/internal/stacks');14const stack = rewriteErrorMessage('Error: test');15console.log(stack);16const { rewriteStackTrace } = require('playwright/lib/internal/stacks');17const stack = rewriteStackTrace('Error: test');18console.log(stack);19const { serializeError } = require('playwright/lib/internal/stacks');20const stack = serializeError('Error: test');21console.log(stack);22const { stackUtils } = require('playwright/lib/internal/stacks');23const stack = stackUtils.captureString(1);24console.log(stack);25const { stackUtils } = require('playwright/lib/internal/stacks');26const stack = stackUtils.captureString(1);27console.log(stack);28const { stackUtils } = require('playwright/lib/internal/stacks');29const stack = stackUtils.captureString(1);30console.log(stack);31const { stackUtils } = require('playwright/lib/internal/stacks');32const stack = stackUtils.captureString(1);33console.log(stack);34const { stackUtils } = require('playwright/lib/internal/stacks');35const stack = stackUtils.captureString(1);

Using AI Code Generation

1const stack = require('playwright/lib/server/crBrowser').captureRawStack();2console.log(stack);3const stack = new Error().stack;4console.log(stack);5    at Object.<anonymous> (/home/saransh/Playwright/test.js:2:24)6    at Module._compile (internal/modules/cjs/loader.js:1137:30)7    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1157:10)8    at Module.load (internal/modules/cjs/loader.js:985:32)9    at Function.Module._load (internal/modules/cjs/loader.js:878:14)10    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12)11    at Object.<anonymous> (/home/saransh/Playwright/test.js:7:24)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)17Difference between console.log() and console.error() in Node.js18Difference between console.warn() and console.error() in Node.js19Difference between console.log() and console.info() in Node.js

Using AI Code Generation

1const stack = await playwright.chromium._impl._browserContext._browser._defaultContext._delegate._delegate._delegate._delegate._delegate._delegate._delegate._delegate._delegate.captureRawStack(false);2console.log(stack);3{4at Object.<anonymous> (/Users/abc/Playwright/playwright/test.js:1:1)5at Module._compile (internal/modules/cjs/loader.js:1138:30)6at Object.Module._extensions..js (internal/modules/cjs/loader.js:1158:10)7at Module.load (internal/modules/cjs/loader.js:985:32)8at Function.Module._load (internal/modules/cjs/loader.js:878:14)9at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12)10}

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.