Webapp Testing

Web Application Testing

Overview

Playwright provides automated browser testing for web applications with multi-browser support. This skill should be invoked when performing end-to-end testing, regression testing, or validating user flows.

Core Principles

• Browser Automation: Control browsers programmatically
• Multi-Browser: Test across Chromium, Firefox, WebKit
• Page Objects: Use page object models for maintainability
• Assertions: Verify expected behavior

Preparation Checklist

• Install Playwright: npm init playwright
• Install browsers: npx playwright install
• Identify test scenarios
• Plan page object structure

Step-by-Step Process

1. Install: Set up Playwright and browsers
2. Write Tests: Create test scripts
3. Model: Define page objects
4. Run: Execute tests
5. Report: Generate test reports
6. CI/CD: Integrate with pipeline

Do's and Don'ts

• ✅ Do use page object models
• ✅ Do run tests in parallel
• ✅ Do use appropriate assertions
• ❌ Don't write flaky tests
• ❌ Don't skip test isolation
• ❌ Don't ignore test maintenance

Anti-Patterns

• Flaky Tests: Unreliable test behavior
• No Isolation: Tests depending on each other
• Hardcoded Waits: Using sleep instead of waits
• No Maintenance: Abandoning test suite