test-driven-development

Test-driven development enforces a test-first workflow by requiring a failing test that defines expected behavior before writing endpoint logic. You verify the failure, implement minimal code to satisfy assertions, then refactor safely within the red-green-refactor cycle.

The red-green-refactor cycle is a test-driven development process where you write a failing unit test, verify the failure, implement the minimum code to satisfy assertions, and then clean up safely. This enforces regression prevention and behavior verification.

You need test-driven development for bug fixes and refactoring when your workflow requires regression prevention and safe iteration on production code. It forces you to define expected behavior in a failing test before changing implementation logic.

Yes, test-driven development encourages real-behavior validation by exercising actual code paths instead of over-relying on mocks or test-only shortcuts. This ensures unit tests verify true production behavior throughout the red-green-refactor cycle.

Test-driven development is the best way to prevent regressions when iterating on production code, as it requires a failing test before implementation and applies minimal code to satisfy assertions. This enforces behavior verification and safe iteration during refactoring.

Test-driven development requires a failing test before implementation to prevent implementation-first coding and ensure the test validates target behavior. This confirms the test detects the missing feature before writing minimal code to satisfy assertions.