test-driven-development

The TDD process is enforced through the strict RED-GREEN-REFACTOR cycle: write a failing test, write minimal code to pass it, then refactor. This discipline prevents rationalizations for skipping tests and ensures code addresses verifiable requirements.

Test-driven development prevents regressions by mandating tests before implementation, creating a safety net. When refactoring, these tests verify existing behavior remains intact, ensuring software quality and preventing future bugs from rationalizations for skipping TDD.

The RED-GREEN-REFACTOR cycle is the core TDD mechanism: write a failing test (RED), implement minimal code to pass it (GREEN), and refactor the code (REFACTOR). This agile process ensures code quality and prevents skipping testing steps.

Yes, strict test-driven development principles apply to all new features, bug fixes, and refactoring tasks. Mandating a failing test first guarantees the code addresses a specific, verifiable requirement and prevents future bugs across all development scenarios.

Common rationalizations for skipping TDD include time constraints or perceived simplicity. This discipline provides clear arguments against these excuses, enforcing the RED-GREEN-REFACTOR cycle to ensure code quality and prevent regressions in software development.