test-driven-development

Test-first development is enforced by ensuring a failing test exists before any production code is written, driving features through a strict Red-Green-Refactor workflow. This approach guarantees minimal implementations designed by clear failures.

The Red-Green-Refactor cycle starts by writing a failing test capturing intended behavior, then implementing minimal code to pass the test, and finally refactoring for clarity. It guides Python and Go projects toward maintainable, spec-aware outputs.

Start TDD with pytest by writing a failing test that defines the desired feature behavior. Apply minimal production code to pass the test, then refactor for clarity. This ensures spec-aware, failure-driven design across Python projects.

Test-driven development works for bug fixes and refactoring in Go projects by applying the Red-Green-Refactor cycle. It ensures a failing test exists before patches, promoting minimal, test-driven implementations with clear failure-driven design.

A spec-aware TDD workflow should be used to maintain strict guardrails during software testing. It provides concrete Red-Green-Refactor steps and anti-pattern awareness, ensuring production-ready features through failure-driven design and minimal implementations.

Test-driven development may not suit engineering workflows requiring rapid prototyping without spec certainty. The strict Red-Green-Refactor discipline enforces failing tests before production code, which can delay initial feature exploration in Python or Go projects.