test-driven-development

Test-driven development is a test-first approach where you write a failing test before implementation, then add minimal code to pass it, and finally refactor. This cycle ensures better code quality and faster feedback for new features.

The best way to fix bugs using a test-first approach is to write a test that reproduces the bug, fix the implementation code to make it pass, and verify the test succeeds. This ensures the bug is systematically resolved and prevents regressions.

Use the Red-Green-Refactor cycle when implementing new features, fixing bugs, or refactoring code. The cycle involves writing a failing test, creating minimal code to pass it, and then refactoring the code to improve quality while maintaining test verification.

Yes, test-driven development requires a basic understanding of testing principles and programming practices. This foundational knowledge facilitates the structured, systematic approach needed for test creation and verification throughout the development process.

Yes, test-driven development supports refactoring existing code. Write tests to verify current behavior, then refactor the implementation code while ensuring the tests continue to pass, maintaining code quality throughout the process.