Advanced TDD Guide 🧪

Test-Driven Development (TDD) is a software development approach that emphasizes writing tests before implementing features. This guide explores advanced TDD techniques to enhance code quality and maintainability.

Key Concepts 📚

• Red-Green-Refactor Cycle:

  1. Write a failing test (Red)
  2. Implement code to pass the test (Green)
  3. Refactor code while maintaining test passing (Refactor)
  

• Test Smells:

  • Tests that are too vague ❌
  • Tests that duplicate implementation logic ❌
  • Tests that depend on external systems ❌
  

Practical Tips 💡

• Use parameterized tests for edge case validation
• Implement test isolation with mocking frameworks
• Prioritize test coverage for critical business logic
• Practice behavior-driven development (BDD) for clearer requirements

Tools & Resources 🛠️

• Testing Tools Comparison
• Mocking Best Practices
• Continuous Integration for TDD

Example Workflow 🧭

1. Write a test for a specific behavior
2. Run the test to confirm it fails
3. Implement minimal code to pass the test
4. Optimize code and refactor
5. Repeat for all requirements

📌 Remember: TDD is not just about writing tests - it's a mindset to improve design and collaboration.