tdd

Test-driven development (TDD) is a methodology emphasizing testing behavior over implementation. It improves software quality by guiding development through structured workflows, incremental loops, and refactoring strategies to prevent anti-patterns.

Start the TDD workflow by planning your feature, writing tracer bullets, and iterating through incremental test-writing loops. Follow the provided guidelines to differentiate between good and bad testing practices during implementation.

Good tests in test-driven development focus on behavior rather than implementation details. Bad tests often rely on horizontal slicing, an anti-pattern that this methodology replaces with effective vertical slices for better software testing.

You should refactor code after completing TDD cycles to ensure tests remain effective. Identify common refactoring candidates and use the provided checklist to verify that your software testing meets best practices.

Test-driven development does not require specific frameworks, but it relies on strict coding standards. The methodology provides a checklist of best practices to ensure your development practices maintain high software quality without external dependencies.

Horizontal slicing creates anti-patterns in software testing because it fragments behavior across layers. Test-driven development recommends vertical slices instead, ensuring tests validate complete feature behaviors rather than isolated implementation details.