test-driven-development

Test-driven development enforces a test-first workflow by requiring a failing test first, then writing minimal production code to pass it, and finally validating changes through a Red-Green-Refactor cycle to catch defects early.

To apply test-driven development for features or bug fixes, write a failing test first that signals broken requirements, implement the smallest amount of production code to pass the test, and then refactor safely.

You should use a test-first workflow during software refactoring to prevent drifting without verification, ensuring existing tests validate changes and catch defects before they reach production.

Yes, test-driven development applies to features, bug fixes, and refactors across software projects without specific framework dependencies, enforcing a Red-Green-Refactor cycle to drive design and safety.

Writing a failing test first reveals broken requirements and early failure signals before production, ensuring your minimal production code directly addresses the defect and passes verification.

Test-driven development solves code drifting without verification by enforcing a strict test-first workflow, applying the Red-Green-Refactor cycle to catch defects early across features, bug fixes, and refactors.