tdd

Test-driven development (TDD) enforces writing failing tests before production code. The red-green-refactor cycle drives iterative feature work: write a failing test, implement code to pass it, then refactor while maintaining test coverage.

To enforce test-driven development discipline, you apply explicit workflow guidance, rules, and templates that ensure tests precede production code. This prevents unchecked changes and regressions across iterative programming tasks.

You need test-driven development for iterative feature work when preventing unchecked changes and regressions is critical. It provides repeatable, measurable test-driven workflows to structure feature development safely across projects.

Test-driven development does not require specific testing frameworks. You start by writing a failing test for the next feature before implementing any code, applying the cycle across your existing programming tasks and platforms.

The best way to structure TDD workflows is by using explicit guidance, rules, and command examples. This supports repeatable, measurable test-driven workflows and enforces the red-green-refactor cycle consistently across software engineering projects.

Writing tests after production code leads to unchecked regressions because the code is not validated against expected behavior during implementation. Test-driven development prevents this by ensuring tests precede production code to enforce discipline.