test-driven-development

Test-driven development (TDD) is a software development process where you write failing tests before implementation code. This approach prevents bugs and regressions by ensuring every piece of functionality is validated against strict testing protocols before it is integrated.

To implement test-first development, follow the Red-Green-Refactor cycle. First, write a failing test describing the desired behavior, then write the absolute minimum code required to make that test pass, and finally refactor the implementation while keeping all tests green.

The Red-Green-Refactor cycle is an agile testing protocol where you first write a failing test (Red), implement the minimal code to pass the test (Green), and then clean up the code without changing behavior (Refactor) to ensure continuous code quality.

Yes, test-driven development significantly aids debugging by enforcing that tests are written before implementation. This strict protocol prevents regressions because any future code changes that break existing functionality will immediately cause previously passing tests to fail.

You should avoid strict test-driven development when rapid prototyping is required without clear behavior definitions, as it enforces writing failing tests and minimal code implementations before any feature logic can be quickly assembled or explored.

No specific testing frameworks are required to start writing tests before implementation. The process relies on your standard software development testing tools and enforces the Red-Green-Refactor cycle to guarantee code quality and prevent regressions.