🤖 Playwright Java – API + UI Flow 

🎭 What is Playwright?

Playwright is an open-source, modern end-to-end testing framework developed by Microsoft. It enables fast, reliable, and cross-browser automation for web applications using real browsers — ideal for UI testing, functional testing, and integration testing.

Playwright is a browser automation tool for end-to-end UI testing, but it also includes built-in API testing support (especially in JS/Python, and partially in Java). 

It enables UI testing, API testing, and component testing, all with a single toolset.

🚀 Key Features of Playwright

• ✅ Cross-browser support (Chromium, Firefox, WebKit) — with no setup

• ✅ Headless & headed mode

• ✅ Auto-waiting for elements (no more sleep() or manual waits)

• ✅ Powerful selectors (text=, nth=, has= etc.)

• ✅ Built-in support for:
  
  

  • Screenshots, videos, trace recording

  • Network interception and mocking

  • Parallel test execution

  • Emulating devices, geolocation, and permissions
    
    

• ✅ Supports Multiple Languages:
  
  

  • JavaScript / TypeScript ✅ (native)

  • Python ✅

  • Java ✅

  • .NET ✅

What Can You Test with Playwright?

• ✅ Web UI (forms, buttons, navigation)

• ✅ Login and authentication flows

• ✅ File uploads/downloads

• ✅ Mobile viewport emulation

• ✅ API calls (GET, POST, auth)

• ✅ Visual validation (screenshots, trace viewer)

🎓 Best Playwright Tutorials by Language

✅ 1. Official Playwright Docs (All Languages)

🖇️ https://playwright.dev

• Best source for up-to-date examples

• Covers browser automation, API testing, tracing, selectors, test runners, etc.
  
  

☕ 2. Playwright for Java

📘 Playwright Java Getting Started (Official)

• Covers setup, launching browsers, selectors, assertions
  
  

📘 GitHub: Playwright Java Examples (official repo)

• Starter code, test runners, API usage

• Great reference if you're working with TestNG/JUnit
  
  

🔷 3. Playwright JavaScript/TypeScript

📘 Playwright Test Framework (official)

• Built-in test runner (parallel, retries, fixtures, etc.)

🐍 4. Playwright for Python

📘 Official Python Docs

• Includes examples for headless mode, parallelism, and API testing
  
  

🧪 Typical Use Cases

• UI smoke/regression tests

• Login, navigation, and form validation

• Headless test automation in CI/CD

• API + UI integration (token injection, mocks)

• Visual testing (with screenshot diffing)
  
  

🔁 Playwright vs Selenium (Brief)

• Playwright is faster, with better waits and modern APIs

• No driver setup — uses bundled browsers

• Supports multi-browser + device emulation natively

• Easier to write stable tests with smart selectors
  
  

📦 Installation by Language

Node.js (native):

npm install -D @playwright/test

npx playwright install

Java:  

Add to pom.xml:

<dependency>

  <groupId>com.microsoft.playwright</groupId>

  <artifactId>playwright</artifactId>

  <version>1.44.0</version>

</dependency>

Python:

pip install playwright

playwright install

🧠 Why Teams Choose Playwright

• Unified UI + API + component testing

• Built-in tooling: tracing, visual reports, CLI runner

• Scalable: works in local dev, Docker, and CI pipelines

• Active community + maintained by Microsoft