🎯Playwright: A Modern Framework for Web Automation Testing

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When a new story comes for automation, I don’t touch the code immediately. I follow a simple and steady approach that helps avoid rework and confusion. 1. Functional understanding comes first My first step is always on the functional side. I read the...

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playwright synchronous assertions

When working in playwright , it is very important to understand the in-built fixtures such as Browser , context, page Just imagine how you will access a particular website. You will open a browser . This does the below tasks in the background Open...

What is locator.click()? In Playwright, locator.click() is a high-level API used to simulate a mouse click on a web element. It’s part of the Locator API, which provides a robust way to interact with elements on the page. await page.getByRole('butt...

Playwright is an open-source automation framework developed by Microsoft, designed for end-to-end testing of modern web applications. Released in January 2020, it has quickly gained popularity due to its cross-browser, cross-platform, and cross-language capabilities.
Cross-Browser Support: Automates Chromium (Chrome, Edge), Firefox, and WebKit (Safari).
Multi-Language Support: Works with JavaScript, TypeScript, Python, Java, and .NET.
Headless Mode: Enables fast, GUI-less testing ideal for CI/CD pipelines.
Automatic Waiting: Waits for elements to be actionable, reducing flaky tests.
Browser Contexts: Simulates multiple users with isolated sessions.
Device Emulation: Tests responsive designs across various screen sizes.
Network Interception: Mocks API responses and simulates network conditions.
Built-in Debugging Tools: Includes codegen, trace viewer, and inspector.
Playwright uses WebSockets for communication with browsers, unlike Selenium’s HTTP-based approach. This allows faster and more reliable interactions. Each test runs in a separate browser context, ensuring full isolation and faster execution.
| Feature | Playwright | Selenium | Cypress |
| Supported Languages | JS, Python, Java, .NET | JS, Python, Java, Ruby | JS/TS |
| Browser Support | Chrome, Firefox, Safari | Chrome, Firefox, IE | Chrome, Firefox |
| Headless Mode | Yes | Yes | Yes |
| Multi-Tab Support | Yes | No | Yes |
| Built-in Debugging | Yes | No | Yes |
| Automatic Wait | Yes | No | Yes |
| Shadow DOM Support | Yes | Limited | Limited |
Playwright stands out for its simplicity, speed, and robust API, making it ideal for modern web apps.
No support for native mobile apps.
Limited language support compared to Selenium.
No support for legacy browsers like IE11.
To install and run Playwright:
npm init playwright@latest
# or
pip install playwright
Example test in TypeScript:
import { test, expect } from '@playwright/test';
test('has title', async ({ page }) => {
await page.goto('https://playwright.dev/');
await expect(page).toHaveTitle(/Playwright/);
});
Modularize tests for maintainability.
Use assertions to validate behavior.
Run tests in parallel to speed up execution.
Integrate with CI tools like Jenkins or GitHub Actions.