Test Automation

Getting Started with Playwright for QA Engineers

By Odai Naboulsi · February 26, 2026 · 9 min read

Playwright is an open-source end-to-end test automation framework developed by Microsoft that lets you write tests in JavaScript, TypeScript, Python, Java, or C# to control Chromium, Firefox, and WebKit browsers. For QA engineers coming from a manual testing background, it is one of the most accessible and capable paths into web automation — and it is gaining adoption rapidly in organizations that have outgrown Selenium or are looking for a more modern alternative to Cypress.

I am actively building my Playwright skills as part of a broader investment in automation and CI/CD, and this post reflects what I have learned through hands-on practice and research.

Why Playwright Is Gaining Traction Over Selenium and Cypress

Selenium has been the dominant web automation tool for over fifteen years, but it comes with significant friction: complex setup, inconsistent cross-browser behavior, and flakiness caused by poorly handled async behavior. Cypress addressed some of those issues but introduced its own constraints — primarily its inability to test across multiple browser tabs or origins in the same test, and its limited support for Firefox and Safari.

Playwright was built with modern web applications in mind from the start. Its key advantages:

  • Auto-wait — Playwright automatically waits for elements to be visible, enabled, and stable before interacting with them. This eliminates the majority of flaky test failures caused by timing issues, which is the leading source of noise in Selenium-based suites
  • True cross-browser support — Chromium, Firefox, and WebKit (Safari's rendering engine) all run in the same test runner with the same API
  • Multi-tab and multi-origin support — test flows that span multiple browser contexts, tabs, or authentication origins without workarounds
  • Network interception — intercept, modify, or mock API responses directly in your test code, without a separate proxy tool
  • Built-in trace viewer — record a full trace of a test run including screenshots, DOM snapshots, and network logs, viewable in a browser-based UI for debugging failures
  • Codegen — record browser interactions and generate test code automatically — a useful starting point for QA engineers new to automation

Setting Up a Playwright Project with JavaScript

The setup process is straightforward. You need Node.js installed (LTS version recommended). Then:

# Create a new project directory and initialize it
mkdir my-playwright-tests
cd my-playwright-tests
npm init -y

# Install Playwright and download browsers
npm init playwright@latest

# Answer the prompts:
# - Language: JavaScript
# - Test directory: tests
# - GitHub Actions workflow: Yes (optional, but recommended)
# - Install browsers: Yes

This creates a playwright.config.js file with your project configuration and a sample test file. The config controls which browsers to run, the base URL, timeouts, and parallel execution settings.

Writing Your First Playwright Test

Here is a simple but representative test — it navigates to a login page, fills in credentials, submits the form, and asserts that the user lands on the expected dashboard.

// tests/login.spec.js
const { test, expect } = require('@playwright/test');

test('user can log in with valid credentials', async ({ page }) => {
  // Navigate to the login page
  await page.goto('https://example.com/login');

  // Fill in the email field using a label-based locator
  await page.getByLabel('Email').fill('testuser@example.com');

  // Fill in the password field
  await page.getByLabel('Password').fill('secureTestPassword123');

  // Click the submit button
  await page.getByRole('button', { name: 'Sign In' }).click();

  // Assert the user lands on the dashboard
  await expect(page).toHaveURL(/.*dashboard/);
  await expect(page.getByRole('heading', { name: 'Welcome back' })).toBeVisible();
});

Run this test with npx playwright test. Playwright will open each configured browser, run the test, and report results in the terminal. Add --headed to watch the browser in real time while you are learning.

Key Features Worth Understanding Early

Auto-wait and locators

Playwright's locator API (page.getByLabel(), page.getByRole(), page.getByText()) is preferred over CSS or XPath selectors because it selects elements the way a user perceives them — by their accessible label, role, or visible text. This makes tests more resilient to UI changes and more aligned with accessibility standards. Every action on a locator automatically waits for the element to be actionable before proceeding.

Network interception

You can intercept API calls within your test and mock responses — useful for testing how the UI handles edge-case API responses like empty lists, error states, or specific data values that are hard to produce in a test environment.

// Mock an API response to return an empty list
await page.route('**/api/workouts', route => {
  route.fulfill({
    status: 200,
    contentType: 'application/json',
    body: JSON.stringify({ workouts: [] })
  });
});

Tracing for debugging failures

Enable tracing in your config or on a per-test basis. Playwright records a complete trace — screenshots at every step, DOM snapshots, and network log — that you can open in the Playwright Trace Viewer to diagnose exactly what happened during a failing CI run without having to reproduce it locally.

How a Manual QA Engineer Should Think About Automation

The shift from manual testing to writing automation is primarily a mindset shift, not just a technical one. When you write a manual test case, you are describing what a human should do and observe. When you write an automated test, you are describing what a program should do and assert — and the assertions must be explicit and deterministic. There is no room for "it looks right" in an automated assertion.

Start small. Pick three to five of your most frequently executed, highest-confidence regression tests — tests where the expected result is crystal clear and the steps are stable. Automate those first. Get comfortable with the Playwright API before trying to automate complex, multi-step flows. A suite of five reliable automated tests is more valuable than thirty brittle, flaky ones.

Your goal in early automation is not to cover everything — it is to build confidence in the framework and establish patterns your future tests can follow. A stable foundation of ten automated tests is the seed of a suite of one hundred.

Playwright's quality, documentation, and community support make it one of the best investments a QA engineer can make in 2026. If you are working primarily in web application testing, this is the framework to learn.

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