playwright

name	playwright
description	Playwright E2E testing, page objects, fixtures, visual regression, accessibility testing, and CI integration patterns.
allowed-tools	Read, Write, Edit, Bash, Glob, Grep
graph	{"domains":["domain:web-development"],"specializations":["specialization:web-development"],"skillAreas":["skill-area:e2e-testing","skill-area:cross-browser-testing"],"roles":["role:qa-engineer","role:frontend-engineer"],"workflows":["workflow:feature-development"],"topics":["topic:test-driven-development"]}

Playwright Skill

Expert assistance for building comprehensive E2E test suites with Playwright, including page objects, fixtures, visual regression, and CI/CD integration.

Capabilities

• Generate Playwright test project structure
• Create page object models for maintainable tests
• Implement custom fixtures and test utilities
• Configure visual regression testing
• Set up accessibility testing with axe-core
• Integrate with CI/CD pipelines (GitHub Actions, etc.)
• Generate API testing alongside UI tests

Usage

Invoke this skill when you need to:

• Set up Playwright testing for a web application
• Create page object patterns for test organization
• Implement visual regression testing
• Configure cross-browser testing
• Set up CI/CD test automation

Inputs

Parameter	Type	Required	Description
projectType	string	No	web, api, component (default: web)
framework	string	No	react, nextjs, vue, angular
browsers	array	No	chromium, firefox, webkit (default: all)
features	array	No	visual, a11y, api, component
ci	string	No	github, gitlab, jenkins

Test Configuration

{
  "projectType": "web",
  "framework": "nextjs",
  "browsers": ["chromium", "firefox"],
  "features": ["visual", "a11y", "api"],
  "ci": "github",
  "baseUrl": "http://localhost:3000"
}

Output Structure

tests/
├── playwright.config.ts           # Playwright configuration
├── fixtures/
│   ├── base.ts                   # Base test fixture
│   ├── auth.ts                   # Authentication fixture
│   └── api.ts                    # API helper fixture
├── pages/
│   ├── BasePage.ts               # Base page object
│   ├── LoginPage.ts              # Login page object
│   └── DashboardPage.ts          # Dashboard page object
├── e2e/
│   ├── auth/
│   │   ├── login.spec.ts
│   │   └── logout.spec.ts
│   ├── dashboard/
│   │   └── dashboard.spec.ts
│   └── api/
│       └── users.api.spec.ts
├── visual/
│   ├── homepage.visual.spec.ts
│   └── screenshots/              # Baseline screenshots
├── a11y/
│   └── accessibility.spec.ts
├── utils/
│   ├── helpers.ts
│   └── test-data.ts
└── .github/
    └── workflows/
        └── playwright.yml        # CI workflow

Generated Code Patterns

Playwright Configuration

// playwright.config.ts
import { defineConfig, devices } from '@playwright/test';

export default defineConfig({
  testDir: './tests',
  fullyParallel: true,
  forbidOnly: !!process.env.CI,
  retries: process.env.CI ? 2 : 0,
  workers: process.env.CI ? 1 : undefined,
  reporter: [
    ['html', { open: 'never' }],
    ['json', { outputFile: 'test-results/results.json' }],
    ['junit', { outputFile: 'test-results/junit.xml' }],
  ],
  use: {
    baseURL: process.env.BASE_URL ?? 'http://localhost:3000',
    trace: 'on-first-retry',
    screenshot: 'only-on-failure',
    video: 'retain-on-failure',
  },
  projects: [
    { name: 'setup', testMatch: /.*\.setup\.ts/ },
    {
      name: 'chromium',
      : { ...devices[] },
      : [],
    },
    {
      : ,
      : { ...devices[] },
      : [],
    },
    {
      : ,
      : { ...devices[] },
      : [],
    },
    {
      : ,
      : { ...devices[] },
      : [],
    },
    {
      : ,
      : { ...devices[] },
      : [],
    },
  ],
  : {
    : ,
    : ,
    : !process..,
  },
});

Base Page Object

// tests/pages/BasePage.ts
import { Page, Locator, expect } from '@playwright/test';

export abstract class BasePage {
  readonly page: Page;
  readonly header: Locator;
  readonly footer: Locator;
  readonly loadingSpinner: Locator;

  constructor(page: Page) {
    this.page = page;
    this.header = page.locator('header');
    this.footer = page.locator('footer');
    this.loadingSpinner = page.locator('[data-testid="loading"]');
  }

  abstract get url(): string;

  async goto() {
    await this.page.goto(this.);
     .();
  }

   () {
     ..({ :  });
  }

   () {
     (.).( (.));
  }

   (): < | > {
     toast = ..();
     ( toast.()) {
       toast.();
    }
     ;
  }
}

Login Page Object

// tests/pages/LoginPage.ts
import { Page, Locator, expect } from '@playwright/test';
import { BasePage } from './BasePage';

export class LoginPage extends BasePage {
  readonly emailInput: Locator;
  readonly passwordInput: Locator;
  readonly submitButton: Locator;
  readonly errorMessage: Locator;
  readonly forgotPasswordLink: Locator;

  constructor(page: Page) {
    super(page);
    this.emailInput = page.getByLabel('Email');
    this.passwordInput = page.getByLabel('Password');
    this.submitButton = page.getByRole('button', { name: 'Sign in' });
    this.errorMessage = page.();
    . = page.(, { :  });
  }

   () {
     ;
  }

   () {
     ..(email);
     ..(password);
     ..();
  }

   () {
     (.).(message);
  }

   () {
     (.).();
  }
}

Custom Fixtures

// tests/fixtures/base.ts
import { test as base, expect } from '@playwright/test';
import { LoginPage } from '../pages/LoginPage';
import { DashboardPage } from '../pages/DashboardPage';

interface TestFixtures {
  loginPage: LoginPage;
  dashboardPage: DashboardPage;
}

interface WorkerFixtures {
  authenticatedPage: void;
}

export const test = base.extend<TestFixtures, WorkerFixtures>({
  loginPage: async ({ page }, use) => {
    const loginPage = new LoginPage(page);
    await use(loginPage);
  },

  dashboardPage: async ({ page }, use) => {
    const dashboardPage = new DashboardPage(page);
    await use(dashboardPage);
  },

  authenticatedPage: [
    async ({ browser }, use) => {
      const context = await browser.newContext({
        storageState: ,
      });
       ();
       context.();
    },
    { :  },
  ],
});

 { expect };

Authentication Setup

// tests/auth.setup.ts
import { test as setup, expect } from '@playwright/test';
import path from 'path';

const authFile = path.join(__dirname, '.auth/user.json');

setup('authenticate', async ({ page }) => {
  await page.goto('/login');
  await page.getByLabel('Email').fill(process.env.TEST_USER_EMAIL!);
  await page.getByLabel('Password').fill(process.env.TEST_USER_PASSWORD!);
  await page.getByRole('button', { name: 'Sign in' }).click();

  await expect(page).toHaveURL(/\/dashboard/);
  await page.context().storageState({ path: authFile });
});

E2E Test Example

// tests/e2e/auth/login.spec.ts
import { test, expect } from '../../fixtures/base';

test.describe('Login', () => {
  test.beforeEach(async ({ loginPage }) => {
    await loginPage.goto();
  });

  test('should login with valid credentials', async ({ loginPage }) => {
    await loginPage.login('[e-mail]', 'password123');
    await loginPage.expectLoginSuccess();
  });

  test('should show error with invalid credentials', async ({ loginPage }) => {
    await loginPage.login('[e-mail]', 'wrongpassword');
    await loginPage.expectErrorMessage('Invalid email or password');
  });

  test('should show validation errors for empty fields', async ({ loginPage }) => {
    await loginPage.submitButton.click();
    await expect(loginPage.emailInput).toHaveAttribute('aria-invalid', 'true');
    await expect(loginPage.passwordInput).(, );
  });
});

Visual Regression Test

// tests/visual/homepage.visual.spec.ts
import { test, expect } from '@playwright/test';

test.describe('Visual Regression', () => {
  test('homepage should match snapshot', async ({ page }) => {
    await page.goto('/');
    await expect(page).toHaveScreenshot('homepage.png', {
      fullPage: true,
      animations: 'disabled',
    });
  });

  test('login page should match snapshot', async ({ page }) => {
    await page.goto('/login');
    await expect(page).toHaveScreenshot('login-page.png');
  });

  test('dashboard should match snapshot @authenticated', async ({ page }) => {
    await page.goto('/dashboard');
    await expect(page).toHaveScreenshot('dashboard.png', {
      mask: [page.locator('[data-testid="user-avatar"]')],
    });
  });
});

Accessibility Test

// tests/a11y/accessibility.spec.ts
import { test, expect } from '@playwright/test';
import AxeBuilder from '@axe-core/playwright';

test.describe('Accessibility', () => {
  test('homepage should have no accessibility violations', async ({ page }) => {
    await page.goto('/');

    const accessibilityScanResults = await new AxeBuilder({ page })
      .withTags(['wcag2a', 'wcag2aa', 'wcag21aa'])
      .analyze();

    expect(accessibilityScanResults.violations).toEqual([]);
  });

  test('login form should be keyboard accessible', async ({ page }) => {
    await page.goto('/login');

    await page.keyboard.press('Tab');
    await expect(page.getByLabel('Email')).toBeFocused();

    await page.keyboard.press('Tab');
     (page.()).();

     page..();
     (page.(, { :  })).();
  });
});

API Test

// tests/e2e/api/users.api.spec.ts
import { test, expect } from '@playwright/test';

test.describe('Users API', () => {
  test('should get user list', async ({ request }) => {
    const response = await request.get('/api/users');

    expect(response.ok()).toBeTruthy();

    const body = await response.json();
    expect(body.users).toBeInstanceOf(Array);
    expect(body.users.length).toBeGreaterThan(0);
  });

  test('should create a new user', async ({ request }) => {
    const response = await request.post('/api/users', {
      data: {
        name: 'Test User',
        email: '[e-mail]',
      },
    });

    expect(response.status()).toBe(201);

    const user = await response.json();
    (user.).();
    (user.).();
  });
});

GitHub Actions Workflow

# .github/workflows/playwright.yml
name: Playwright Tests

on:
  push:
    branches: [main, develop]
  pull_request:
    branches: [main]

jobs:
  test:
    timeout-minutes: 60
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-node@v4
        with:
          node-version: 22
          cache: 'npm'

      - name: Install dependencies
        run: npm ci

      - name: Install Playwright Browsers
        run: npx playwright install --with-deps

      - name: Run Playwright tests
        run: npx playwright test
        
             
             
             

        
         
        
           
           
           

Dependencies

{
  "devDependencies": {
    "@playwright/test": "^1.50.0",
    "@axe-core/playwright": "^4.10.0"
  }
}

Workflow

1. Setup configuration - Create playwright.config.ts
2. Create page objects - Model application pages
3. Define fixtures - Set up test utilities
4. Write tests - E2E, visual, a11y tests
5. Configure CI - GitHub Actions workflow
6. Generate reports - HTML, JSON, JUnit

Best Practices Applied

• Page Object Model for maintainability
• Custom fixtures for reusability
• Parallel test execution
• Cross-browser testing
• Visual regression baselines
• Accessibility testing integration
• Proper test isolation

References

• Playwright Documentation: https://playwright.dev/docs/intro
• playwright-skill: https://github.com/lackeyjb/playwright-skill
• mcp-playwright: https://github.com/executeautomation/mcp-playwright
• Axe-core: https://www.deque.com/axe/

Target Processes

• e2e-testing-setup
• visual-regression-testing
• accessibility-testing
• api-testing
• ci-cd-integration