testing-tdd

A red-green-refactor workflow for API evolution anchors changes to failing tests first, implements minimal code to pass, then refactors safely. This drives incremental design adjustments with explicit feedback loops and risk documentation.

Test-driven development (TDD) is a software engineering discipline where failing tests dictate the smallest next behavior. It guides design by producing small, verifiable, auditable cycle steps that surface trade-offs and reduce drift.

To start a TDD cycle for module shaping, write a failing test for the smallest next behavior, then implement the minimal change required to pass it. This ensures fast, safe cycles with clear design feedback.

Yes, test-first development applies to refactoring by requiring explicit failing tests before changes. This ensures small, auditable cycle steps and clear risk documentation, guaranteeing safe design evolution without drift.

TDD workflow automation requires no external dependencies to guide the process. It operates by enforcing failing-test-first feedback loops and small cycle steps directly within your software engineering environment.

Test-driven development requires failing tests first to establish explicit feedback loops. This anchors incremental design changes, surfaces trade-offs early, and ensures modifications are verifiable and auditable to reduce risk.