test-driven-development

Test-driven development improves code quality by enforcing the Red-Green-Refactor cycle. You write a failing test before implementation, add minimal code to pass, and refactor to prevent regressions.

The Red-Green-Refactor cycle is a core testing methodology where you write a failing test, write the minimal code to make it pass, and then clean up the implementation to ensure maintainable software.

You should use TDD when starting any new feature or bug fix requiring robust, maintainable code. It ensures test-first development, reducing bugs and preventing regressions in all software engineering tasks.

Start a new feature using test-first development by writing a test that fails for the new behavior. Then, write the minimal implementation to make it pass before refactoring the code.

Yes, you use TDD for debugging and refactoring by writing tests that capture current behavior or expected fixes. This ensures your refactoring prevents regressions and maintains code quality.