test-driven-development

Test-driven development enforces discipline by guiding you through a red-green-refactor loop, ensuring observable behavior is validated by executable tests before any production work is completed. This reduces regressions by driving completion through verifiable results.

The red-green-refactor loop is a test-driven cycle where you write a failing test for an acceptance criterion, implement the minimum code to pass it, and then refactor while keeping tests green. It ensures traceability between tests and project requirements.

You verify acceptance criteria by mapping explicit executable tests to the project's ubiquitous language for each requirement. The verification gate then attests test results before completion, ensuring every refactored code change meets the defined observable behavior.

Yes, test-driven development applies to refactors by maintaining a green test suite while you improve code structure. It requires a verifiable test suite mapped to acceptance criteria, ensuring observable behavior remains validated throughout the refactoring process.

Yes, you need a verifiable test suite and explicit executable tests per acceptance criterion. The verification integration requires attesting test results before completion, so a verifiable suite is a prerequisite to enforce the test-driven discipline effectively.

Test-driven development reduces misinterpretation by enforcing explicit criteria coverage, where tests map directly to the project's ubiquitous language and acceptance criteria. This ensures completion is driven by verifiable, observable behavior rather than guesswork.