testing-tdd

To start test-driven development, describe the feature to test, write a failing behavior-driven test first, and then implement only enough code to make it pass. This enforces a strict Red-Green-Refactor cycle across frameworks like pytest and jest.

The Arrange-Act-Assert pattern structures behavior-driven tests into three phases: setting up data, executing the action, and verifying the result. This structure guides focused test-first development and helps avoid common testing anti-patterns.

Yes, TDD guidance is language-agnostic and supports multiple frameworks including cargo test for Rust, vitest and jest for JavaScript, and pytest for Python. It provides workflow guidance, decision checklists, and quality gates across these environments.

Define testing contracts and mock strategies by providing clear feature descriptions before implementation. This drives edge-case validation through structured tests, ensuring your mock strategies align with the required behavior-driven testing outcomes.

Using a Red-Green-Refactor cycle writes focused tests up front to guide design and reduce defects, rather than testing after implementation. This ensures code satisfies strict testing contracts and quality gates from the start.