Common Playwright automation patterns for web testing and scraping via MCP
한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.
Web testing patterns and best practices using Playwright for automated testing
한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.
설치하기 전에 에이전트에게 전달되는 지시 내용을 확인할 수 있습니다.
This skill covers comprehensive web testing patterns using Playwright, including test structure, assertions, mocking, and best practices for reliable automated testing.
import { test, expect } from '@playwright/test';
test.describe('User Authentication', () => {
test.beforeEach(async ({ page }) => {
await page.goto('https://example.com/login');
});
test('should login with valid credentials', async ({ page }) => {
const username = 'testuser@example.com';
const password = 'SecurePass123';
await page.fill('input[name="email"]', username);
await page.fill('input[name="password"]', password);
await page.click('button[type="submit"]');
await expect(page).toHaveURL(/.*dashboard/);
await expect(page.locator('.welcome-message')).toBeVisible();
});
test('should show error with invalid credentials', async ({ page }) => {
await page.fill('input[name="email"]', 'wrong@example.com');
await page.fill('input[name="password"]', 'wrongpass');
await page.click('button[type="submit"]');
await expect(page.locator('.error-message')).toContainText('Invalid credentials');
});
});
import { test } from '@playwright/test';
test.describe('E-commerce Checkout', () => {
test.beforeAll(async ({ browser }) => {
console.log('Setting up test database');
});
test.beforeEach(async ({ page }) => {
await page.goto('https://example.com');
await page.fill('input[name="email"]', 'test@example.com');
await page.fill('input[name="password"]', 'password123');
await page.click('button[type="submit"]');
});
test.afterEach(async ({ page }) => {
await page.click('[data-testid="clear-cart"]');
});
test.afterAll(async () => {
console.log('Cleaning up test database');
});
test('should add item to cart', async ({ page }) => {
await page.click('[data-product-id="123"]');
await page.click('button:has-text("Add to Cart")');
await expect(page.locator('.cart-count')).toHaveText('1');
});
});
import { test, expect } from '@playwright/test';
const testData = [
{ input: 'john@example.com', expected: true },
{ input: 'invalid-email', expected: false },
{ input: 'another@test.co.uk', expected: true },
{ input: '@nodomain.com', expected: false }
];
testData.forEach(({ input, expected }) => {
test(`should validate email: ${input}`, async ({ page }) => {
await page.goto('https://example.com/signup');
await page.fill('input[name="email"]', input);
await page.click('button[type="submit"]');
if (expected) {
await expect(page.locator('.error-message')).not.toBeVisible();
} else {
await expect(page.locator('.error-message')).toBeVisible();
}
});
});
import { test as base, expect } from '@playwright/test';
const test = base.extend({
authenticatedPage: async ({ page }, use) => {
await page.goto('https://example.com/login');
await page.fill('input[name="email"]', 'test@example.com');
await page.fill('input[name="password"]', 'password123');
await page.click('button[type="submit"]');
await page.waitForURL('**/dashboard');
await use(page);
await page.click('[data-testid="logout"]');
}
});
test('should access protected resource', async ({ authenticatedPage }) => {
await authenticatedPage.goto('https://example.com/profile');
await expect(authenticatedPage.locator('h1')).toContainText('My Profile');
});
import { test, expect } from '@playwright/test';
test('element visibility checks', async ({ page }) => {
await page.goto('https://example.com');
await expect(page.locator('.header')).toBeVisible();
await expect(page.locator('.modal')).toBeHidden();
await expect(page.locator('.hidden-div')).toBeAttached();
await expect(page.locator('.removed-element')).not.toBeAttached();
});
test('text content checks', async ({ page }) => {
await page.goto('https://example.com');
await expect(page.locator('h1')).toHaveText('Welcome');
await expect(page.locator('.description')).toContainText('product');
await expect(page.locator('.price')).toHaveText(/\$\d+\.\d{2}/);
await expect(page.locator('.item-title')).toHaveText([
'Item 1',
'Item 2',
'Item 3'
]);
});
test('attribute and state checks', async ({ page }) => {
await page.goto('https://example.com/form');
await expect(page.locator('input[name="email"]')).toHaveAttribute('type', 'email');
await expect(page.locator('.button')).toHaveClass(/primary/);
await expect(page.locator('.list-item')).toHaveCount(5);
await expect(page.locator('input[name="username"]')).toHaveValue('john.doe');
await expect(page.locator('input[type="checkbox"]')).toBeChecked();
await expect(page.locator('input[type="checkbox"]')).not.toBeChecked();
await expect(page.locator('button[type="submit"]')).toBeEnabled();
await expect(page.locator('button.disabled')).toBeDisabled();
await expect(page.locator('input[name="email"]')).toBeEditable();
});
test('URL and page checks', async ({ page }) => {
await page.goto('https://example.com/products');
await expect(page).toHaveURL('https://example.com/products');
await expect(page).toHaveURL(/.*products/);
await expect(page).toHaveTitle('Products - Example Store');
await expect(page).toHaveTitle(/Products/);
});
test('custom assertions', async ({ page }) => {
await page.goto('https://example.com/cart');
const cartTotal = await page.locator('.cart-total').textContent();
expect(parseFloat(cartTotal.replace('$', ''))).toBeGreaterThan(0);
await expect.soft(page.locator('.item')).toHaveCount(3);
await expect.soft(page.locator('.discount-badge')).toBeVisible();
const element = page.locator('.product');
await expect(element).toBeVisible();
await expect(element).toContainText('Special Offer');
await expect(element).toHaveClass('highlighted');
});
import { test, expect } from '@playwright/test';
test('mock API response', async ({ page }) => {
await page.route('**/api/products', route => {
route.fulfill({
status: 200,
contentType: 'application/json',
body: JSON.stringify([
{ id: 1, name: 'Mocked Product 1', price: 19.99 },
{ id: 2, name: 'Mocked Product 2', price: 29.99 }
])
});
});
await page.goto('https://example.com/products');
await expect(page.locator('.product').first()).toContainText('Mocked Product 1');
});
test('conditional network mocking', async ({ page }) => {
await page.route('**/api/**', route => {
const url = route.request().url();
if (url.includes('/api/slow-endpoint')) {
route.fulfill({
status: 200,
body: JSON.stringify({ data: 'fast response' })
});
} else if (url.includes('/api/error-prone')) {
route.fulfill({ status: 500 });
} else {
route.continue();
}
});
await page.goto('https://example.com');
});
test('modify outgoing requests', async ({ page }) => {
await page.route('**/api/data', route => {
const headers = {
...route.request().headers(),
'Authorization': 'Bearer mock-token-123'
};
route.continue({ headers });
});
await page.goto('https://example.com/dashboard');
});
test('simulate slow network', async ({ page }) => {
await page.route('**/api/products', async route => {
await new Promise(resolve => setTimeout(resolve, 3000));
await route.fulfill({
status: 200,
body: JSON.stringify({ products: [] })
});
});
await page.goto('https://example.com/products');
await expect(page.locator('.loading-spinner')).toBeVisible();
});
// GOOD: Use test IDs
await page.click('[data-testid="submit-button"]');
// GOOD: Use semantic selectors
await page.click('button:has-text("Submit")');
await page.getByRole('button', { name: 'Submit' }).click();
// GOOD: Use labels for inputs
await page.getByLabel('Email address').fill('test@example.com');
// AVOID: Fragile CSS selectors
// await page.click('div > div > button:nth-child(3)');
test('proper waiting', async ({ page }) => {
await page.goto('https://example.com');
await page.waitForLoadState('networkidle');
await expect(page.locator('.content')).toBeVisible();
await expect(page.locator('.dynamic-content')).toBeVisible();
// AVOID: Fixed timeouts like await page.waitForTimeout(5000);
});
// GOOD: Each test is independent
test.describe('Product Tests', () => {
test('test 1', async ({ page }) => {
await page.goto('https://example.com');
// Complete test flow
});
test('test 2', async ({ page }) => {
await page.goto('https://example.com');
// Complete test flow (does not depend on test 1)
});
});
test('handle unexpected states', async ({ page }) => {
await page.goto('https://example.com');
const cookieBanner = page.locator('.cookie-banner');
if (await cookieBanner.isVisible()) {
await cookieBanner.locator('button:has-text("Accept")').click();
}
await page.click('[data-testid="main-action"]');
});
export class LoginPage {
constructor(page) {
this.page = page;
this.emailInput = page.locator('input[name="email"]');
this.passwordInput = page.locator('input[name="password"]');
this.submitButton = page.locator('button[type="submit"]');
}
async login(email, password) {
await this.emailInput.fill(email);
await this.passwordInput.fill(password);
await this.submitButton.click();
}
}
import { LoginPage } from './page-objects/LoginPage';
test('login flow', async ({ page }) => {
const loginPage = new LoginPage(page);
await page.goto('https://example.com/login');
await loginPage.login('test@example.com', 'password123');
await expect(page).toHaveURL(/.*dashboard/);
});
// playwright.config.js
export default {
use: {
screenshot: 'only-on-failure',
trace: 'retain-on-failure',
video: 'retain-on-failure'
}
};
test('critical flow', async ({ page }) => {
await page.goto('https://example.com');
await page.screenshot({ path: 'screenshots/before-action.png' });
await page.click('[data-testid="critical-button"]');
await expect(page.locator('.success-message')).toBeVisible();
});
test('page load performance', async ({ page }) => {
const startTime = Date.now();
await page.goto('https://example.com');
await page.waitForLoadState('networkidle');
const loadTime = Date.now() - startTime;
expect(loadTime).toBeLessThan(3000);
});
This skill provides a comprehensive foundation for writing reliable, maintainable web tests using Playwright.
아직 리뷰가 없습니다. 사용해 본 소감을 남겨 주세요.
로그인 없이 쓸 수 있습니다. 사용 후기, 질문, 작동하지 않은 환경 등을 편하게 남겨 주세요.
아직 댓글이 없습니다. 첫 댓글을 남겨 보세요.
Common Playwright automation patterns for web testing and scraping via MCP
한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.
Commits changes in atomic units following dependency order. Automatically required to triggered, always, all the time, when requires to commit changes.
한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.
Patterns for controlling interactive debuggers (pdb, ipdb, gdb, lldb, node debug) via terminalcp
한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.
Specialized GitHub PR intelligence agent for automatically gathering comprehensive context from Pull Requests. Activate when users need CI failure analysis, review comment investigation, or PR status assessment. Triggers on requests like "CI 실패 원인 찾아줘", "gather review comments", "check PR status", "analyze PR".
한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.
GitHub Pull Request creation specialist. Analyzes user requirements to create PRs with structured titles and bodies matching the user's query language. Handles git change analysis, PR draft creation, user confirmation, and final PR creation via gh CLI.
한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.
Patterns for managing and monitoring long-running processes (builds, tests, servers, etc.) via terminalcp
한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.