Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use accessibilitySnapshot method in Playwright Internal

Best JavaScript code snippet using playwright-internal

wkAccessibility.js

Source:wkAccessibility.js

1"use strict";2Object.defineProperty(exports, "__esModule", {3  value: true4});5exports.getAccessibilityTree = getAccessibilityTree;6/**7 * Copyright (c) Microsoft Corporation.8 *9 * Licensed under the Apache License, Version 2.0 (the "License");10 * you may not use this file except in compliance with the License.11 * You may obtain a copy of the License at12 *13 * http://www.apache.org/licenses/LICENSE-2.014 *15 * Unless required by applicable law or agreed to in writing, software16 * distributed under the License is distributed on an "AS IS" BASIS,17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.18 * See the License for the specific language governing permissions and19 * limitations under the License.20 */21async function getAccessibilityTree(session, needle) {22  const objectId = needle ? needle._objectId : undefined;23  const {24    axNode25  } = await session.send('Page.accessibilitySnapshot', {26    objectId27  });28  const tree = new WKAXNode(axNode);29  return {30    tree,31    needle: needle ? tree._findNeedle() : null32  };33}34const WKRoleToARIARole = new Map(Object.entries({35  'TextField': 'textbox'36})); // WebKit localizes role descriptions on mac, but the english versions only add noise.37const WKUnhelpfulRoleDescriptions = new Map(Object.entries({38  'WebArea': 'HTML content',39  'Summary': 'summary',40  'DescriptionList': 'description list',41  'ImageMap': 'image map',42  'ListMarker': 'list marker',43  'Video': 'video playback',44  'Mark': 'highlighted',45  'contentinfo': 'content information',46  'Details': 'details',47  'DescriptionListDetail': 'description',48  'DescriptionListTerm': 'term',49  'alertdialog': 'web alert dialog',50  'dialog': 'web dialog',51  'status': 'application status',52  'tabpanel': 'tab panel',53  'application': 'web application'54}));55class WKAXNode {56  constructor(payload) {57    this._payload = void 0;58    this._children = void 0;59    this._payload = payload;60    this._children = [];61    for (const payload of this._payload.children || []) this._children.push(new WKAXNode(payload));62  }63  children() {64    return this._children;65  }66  _findNeedle() {67    if (this._payload.found) return this;68    for (const child of this._children) {69      const found = child._findNeedle();70      if (found) return found;71    }72    return null;73  }74  isControl() {75    switch (this._payload.role) {76      case 'button':77      case 'checkbox':78      case 'ColorWell':79      case 'combobox':80      case 'DisclosureTriangle':81      case 'listbox':82      case 'menu':83      case 'menubar':84      case 'menuitem':85      case 'menuitemcheckbox':86      case 'menuitemradio':87      case 'radio':88      case 'scrollbar':89      case 'searchbox':90      case 'slider':91      case 'spinbutton':92      case 'switch':93      case 'tab':94      case 'textbox':95      case 'TextField':96      case 'tree':97        return true;98      default:99        return false;100    }101  }102  _isTextControl() {103    switch (this._payload.role) {104      case 'combobox':105      case 'searchfield':106      case 'textbox':107      case 'TextField':108        return true;109    }110    return false;111  }112  _name() {113    if (this._payload.role === 'text') return this._payload.value || '';114    return this._payload.name || '';115  }116  isInteresting(insideControl) {117    const {118      role,119      focusable120    } = this._payload;121    const name = this._name();122    if (role === 'ScrollArea') return false;123    if (role === 'WebArea') return true;124    if (focusable || role === 'MenuListOption') return true; // If it's not focusable but has a control role, then it's interesting.125    if (this.isControl()) return true; // A non focusable child of a control is not interesting126    if (insideControl) return false;127    return this.isLeafNode() && !!name;128  }129  _hasRendundantTextChild() {130    if (this._children.length !== 1) return false;131    const child = this._children[0];132    return child._payload.role === 'text' && this._payload.name === child._payload.value;133  }134  isLeafNode() {135    if (!this._children.length) return true; // WebKit on Linux ignores everything inside text controls, normalize this behavior136    if (this._isTextControl()) return true; // WebKit for mac has text nodes inside heading, li, menuitem, a, and p nodes137    if (this._hasRendundantTextChild()) return true;138    return false;139  }140  serialize() {141    const node = {142      role: WKRoleToARIARole.get(this._payload.role) || this._payload.role,143      name: this._name()144    };145    if ('description' in this._payload && this._payload.description !== node.name) node.description = this._payload.description;146    if ('roledescription' in this._payload) {147      const roledescription = this._payload.roledescription;148      if (roledescription !== this._payload.role && WKUnhelpfulRoleDescriptions.get(this._payload.role) !== roledescription) node.roledescription = roledescription;149    }150    if ('value' in this._payload && this._payload.role !== 'text') {151      if (typeof this._payload.value === 'string') node.valueString = this._payload.value;else if (typeof this._payload.value === 'number') node.valueNumber = this._payload.value;152    }153    if ('checked' in this._payload) node.checked = this._payload.checked === 'true' ? 'checked' : this._payload.checked === 'false' ? 'unchecked' : 'mixed';154    if ('pressed' in this._payload) node.pressed = this._payload.pressed === 'true' ? 'pressed' : this._payload.pressed === 'false' ? 'released' : 'mixed';155    const userStringProperties = ['keyshortcuts', 'valuetext'];156    for (const userStringProperty of userStringProperties) {157      if (!(userStringProperty in this._payload)) continue;158      node[userStringProperty] = this._payload[userStringProperty];159    }160    const booleanProperties = ['disabled', 'expanded', 'focused', 'modal', 'multiline', 'multiselectable', 'readonly', 'required', 'selected'];161    for (const booleanProperty of booleanProperties) {162      // WebArea and ScorllArea treat focus differently than other nodes. They report whether their frame  has focus,163      // not whether focus is specifically on the root node.164      if (booleanProperty === 'focused' && (this._payload.role === 'WebArea' || this._payload.role === 'ScrollArea')) continue;165      const value = this._payload[booleanProperty];166      if (!value) continue;167      node[booleanProperty] = value;168    }169    const numericalProperties = ['level', 'valuemax', 'valuemin'];170    for (const numericalProperty of numericalProperties) {171      if (!(numericalProperty in this._payload)) continue;172      node[numericalProperty] = this._payload[numericalProperty];173    }174    const tokenProperties = ['autocomplete', 'haspopup', 'invalid'];175    for (const tokenProperty of tokenProperties) {176      const value = this._payload[tokenProperty];177      if (!value || value === 'false') continue;178      node[tokenProperty] = value;179    }180    const orientationIsApplicable = new Set(['ScrollArea', 'scrollbar', 'listbox', 'combobox', 'menu', 'tree', 'separator', 'slider', 'tablist', 'toolbar']);181    if (this._payload.orientation && orientationIsApplicable.has(this._payload.role)) node.orientation = this._payload.orientation;182    return node;183  }...

accessibility.js

Source:accessibility.js

...52    this._channel = channel53  }54  async snapshot(options = {}) {55    const root = options.root ? options.root._elementChannel : undefined56    const result = await this._channel.accessibilitySnapshot({57      interestingOnly: options.interestingOnly,58      root59    })60    return result.rootAXNode ? axNodeFromProtocol(result.rootAXNode) : null61  }62}...

Using AI Code Generation

1const {chromium} = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const context = await browser.newContext();5  const page = await context.newPage();6  const snapshot = await page.accessibility.snapshot();7  console.log(snapshot);8  await browser.close();9})();10{11    {12        {13        },14        {15        },16        {17            {18            }19        }20    }21}

Using AI Code Generation

1const { accessibilitySnapshot } = require('@playwright/test');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 snapshot = await accessibilitySnapshot(page);8  console.log(snapshot);9  await browser.close();10})();11const { test, expect } = require('@playwright/test');12test('snapshot', async ({ page }) => {

Using AI Code Generation

1const { accessibilitySnapshot } = require('@playwright/test');2const fs = require('fs');3(async () => {4  const browser = await chromium.launch();5  const context = await browser.newContext();6  const page = await context.newPage();7  const snapshot = await accessibilitySnapshot(page);8  fs.writeFileSync('snapshot.json', JSON.stringify(snapshot));9  await browser.close();10})();

Using AI Code Generation

1const { accessibilitySnapshot } = require('@playwright/test/lib/server/chromium/crBrowser');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 snapshot = await accessibilitySnapshot(page);8  console.log(snapshot);9  await browser.close();10})();11{12    {13    },14    {

Using AI Code Generation

1const { accessibilitySnapshot } = require('@playwright/test');2const { test, expect } = require('@playwright/test');3test('test', async ({ page }) => {4  const snapshot = await accessibilitySnapshot(page);5  expect(snapshot).toMatchSnapshot('playwright-homepage.snapshot');6});7{8    {9        {10        }11    },12    {13        {14        }15    },16    {17    },18    {19    },20    {21    },22    {23    },24    {25    },26    {27    },28    {29    },

Using AI Code Generation

1const { accessibilitySnapshot } = require('playwright/lib/server/chromium/crBrowser');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 snapshot = await accessibilitySnapshot(page);8  console.log(snapshot);9  await browser.close();10})();11{12    {13        {

Using AI Code Generation

1const { accessibilitySnapshot } = require('@playwright/test/lib/server/trace/recorder/snapshotter');2const { test, expect } = require('@playwright/test');3test('test', async ({ page }) => {4  const snapshot = await accessibilitySnapshot(page);5  expect(snapshot).toMatchSnapshot('accessibility.snapshot');6});7const { test, expect } = require('@playwright/test');8test('test', async ({ page }) => {9  const snapshot = await page.accessibility.snapshot();10  expect(snapshot).toMatchSnapshot('accessibility.snapshot');11});

Using AI Code Generation

1const { accessibilitySnapshot } = require('@playwright/test');2const { test, expect } = require('@playwright/test');3test('test', async ({ page }) => {4  const snapshot = await accessibilitySnapshot(page);5  expect(snapshot).toMatchSnapshot('accessibility.snapshot');6});7Object {8    Object {9        Object {10        },11    },12}13`;14AccessibilitySnapshot {

Using AI Code Generation

1const playwright = require('playwright');2const fs = require('fs');3(async () => {4  const browser = await playwright.chromium.launch();5  const context = await browser.newContext();6  const page = await context.newPage();7  const snapshot = await page.accessibility.snapshot();8  fs.writeFileSync('snapshot.json', JSON.stringify(snapshot, null, 2));9  await browser.close();10})();11const playwright = require('playwright');12const fs = require('fs');13(async () => {14  const browser = await playwright.chromium.launch();15  const context = await browser.newContext();16  const page = await context.newPage();17  const snapshot = await page.accessibility.snapshot();18  fs.writeFileSync('snapshot.json', JSON.stringify(snapshot, null, 2));19  await browser.close();20})();21const playwright = require('playwright');22const fs = require('fs');23(async () => {24  const browser = await playwright.chromium.launch();25  const context = await browser.newContext();26  const page = await context.newPage();27  const snapshot = await page.accessibility.snapshot();28  fs.writeFileSync('snapshot.json', JSON.stringify(snapshot, null, 2));29  await browser.close();30})();31const playwright = require('playwright');32const fs = require('fs');33(async () => {34  const browser = await playwright.chromium.launch();35  const context = await browser.newContext();36  const page = await context.newPage();37  const snapshot = await page.accessibility.snapshot();38  fs.writeFileSync('snapshot.json', JSON.stringify(snapshot, null, 2));39  await browser.close();40})();

Using AI Code Generation

1const { accessibilitySnapshot } = require('@playwright/test/lib/server/trace/recorder/snapshotter');2const { test, expect } = require('@playwright/test');3test('test', async ({ page }) => {4  const snapshot = await accessibilitySnapshot(page);5  expect(snapshot).toMatchSnapshot('accessibility.snapshot');6});7const { test, expect } = require('@playwright/test');8test('test', async ({ page }) => {9  const snapshot = await page.accessibility.snapshot();10  expect(snapshot).toMatchSnapshot('accessibility.snapshot');11});

Using AI Code Generation

1const { accessibilitySnapshot } = require('@playwright/test');2const { test, expect } = require('@playwright/test');3test('test', async ({ page }) => {4  const snapshot = await accessibilitySnapshot(page);5  expect(snapshot).toMatchSnapshot('accessibility.snapshot');6});7Object {8    Object {9        Object {10        },11    },12}13`;14AccessibilitySnapshot {

Using AI Code Generation

1const { accessibilitySnapshot } = require('@playwright/test/lib/server/trace/recorder/snapshotter');2const { getTestState } = require('@playwright/test/lib/server/trace/recorder/recorderProcess');3const { Accessibility } = require('@playwright/test/lib/server/trace/recorder/accessibility');4const { Page } = require('@playwright/test/lib/server/page');5const { Snapshotter } = require('@playwright/test/lib/server/snapshot/snapshotter');6const { SnapshotStorage } = require('@playwright/test/lib/server/snapshot/snapshotStorage');7const { SnapshotServer } = require('@playwright/test/lib/server/snapshot/snapshotServer');8(async () => {9    const page = await browser.newPage();10    const snapshotter = new Snapshotter(page, new SnapshotStorage(), new SnapshotServer());11    const accessibility = new Accessibility(page);12    const testState = getTestState();13    const context = page.context();14    const browser = context.browser();15    const browserContext = browser._browserContext;16    const snapshotServer = browserContext._snapshotter._snapshotServer;17    const snapshotStorage = browserContext._snapshotter._snapshotStorage;

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.