test-driven-development

Start Test-Driven Development by following the red-green-refactor cycle to implement the next behavior for your current feature. Write a failing test, write the minimum code to pass it, and then refactor for better software design.

Core TDD principles include writing one test at a time and focusing on behavior over implementation. Reinforcing these principles ensures you build robust, maintainable code with correctness established from the outset.

The red-green-refactor cycle improves code quality by ensuring every piece of functionality has a corresponding test. This behavior-driven development approach leads to fewer bugs and a more confident codebase.

Use TDD when starting a new feature to ensure each piece of functionality is built with a corresponding test. This behavior-driven approach guarantees testability and correctness from the outset, rather than retrofitting tests later.

Common TDD mistakes include testing implementation details instead of behavior and writing multiple tests simultaneously. Adhering strictly to the one-test-at-a-time principle and focusing on behavior-driven development prevents these errors.