mm-tdd

Test-driven development is implemented by following a red-green-refactor loop: writing tests for desired behavior first, then creating the implementation to pass them, and finally refactoring. This approach catches bugs early and maintains code reliability.

Writing behavior-driven tests involves targeting public interfaces and describing expected system behavior rather than internal implementation details. This ensures tests remain valid through refactoring and accurately verify functional requirements.

Code coverage analysis identifies untested code by running a script that checks which sections lack tests. It then suggests specific test improvements to fill gaps, ensuring comprehensive validation across the codebase.

TDD practices suit various software development scenarios where code quality is critical. The methodology applies broadly by focusing on creating tests for public interfaces and avoiding implementation details across different project types.

Test-driven development emphasizes writing tests first because it enforces the red-green-refactor cycle. This ensures the implementation strictly satisfies defined behavior, prevents over-engineering, and builds a reliable regression safety net from the start.

No specific testing frameworks are required to start adopting test-driven development practices. The methodology focuses on the process of writing tests for public interfaces first, making it adaptable to various development environments and tech stacks.