test-driven-development

Test-driven development is a test-first workflow enforcing a Red-Green-Refactor cycle: write a failing test, implement minimal code to pass, then refactor for quality. This prevents untested production changes and reduces regressions.

To start test-driven development, describe a failing test first that defines the desired feature behavior. Next, implement the minimal code required to make that test pass, and then refactor the code for clarity while maintaining test coverage.

Yes, test-driven development is applicable to bug fixes and refactoring across multi-language projects. By writing a failing test that reproduces the bug first, you ensure code changes driven by tests and maintain reliable test coverage during refactoring.

Test-driven development suits multi-language projects and teams adopting a test-first mindset. It enforces a disciplined Red-Green-Refactor workflow across different languages, ensuring automated tests drive code changes in real-world team projects.

The best way to prevent untested production changes is adopting test-driven development. Enforcing a test-first workflow ensures every feature and bug fix requires a failing test initially, preventing untested code from shipping and reducing regressions.

You should avoid test-driven development when exploring rapid prototypes where immediate code quality and maintainability are not priorities. The disciplined Red-Green-Refactor cycle adds overhead that may not suit exploratory or throwaway code spikes.