Playwright has become one of the most popular tools for end-to-end testing, and for good reason. In this guide, we'll walk through setting up Playwright and writing your first tests.
Why Playwright?
Playwright offers several advantages over other testing frameworks:
- Cross-browser support: Test on Chromium, Firefox, and WebKit with one API
- Auto-waiting: Built-in waiting reduces flaky tests significantly
- Powerful selectors: Role-based locators for resilient tests
- Great debugging: Trace viewer and codegen tools
Setting Up Your Project
Getting started is straightforward. Create a new project and run:
npm init playwright@latestThis sets up your project with TypeScript support, example tests, and configuration files.
Writing Your First Test
Playwright tests are intuitive to write. Here's a simple example that tests a login flow:
import { test, expect } from '@playwright/test';
test('user can log in', async ({ page }) => {
await page.goto('/login');
await page.getByLabel('Email').fill('user@example.com');
await page.getByLabel('Password').fill('password');
await page.getByRole('button', { name: 'Sign In' }).click();
await expect(page.getByText('Welcome back')).toBeVisible();
});Best Practices
After implementing Playwright on dozens of projects, here are our recommendations:
- Use role-based locators: They're more resilient than CSS selectors
- Keep tests independent: Each test should be able to run in isolation
- Use fixtures: Share setup logic across tests
- Run tests in CI: Catch issues before they reach production
The best tests are the ones that give you confidence to deploy on Friday afternoon.
Stay tuned for more Playwright tips in upcoming posts!
