test-driven-development

Test-driven development is a workflow where you write a failing test, implement the minimal code to pass it, then refactor for clarity. The red-green-refactor cycle drives design from verification backward to planning.

Start writing failing tests by creating a small function test, running it to observe failure, implementing minimal code to pass, and refactoring for readability. This disciplined test-driven approach ensures features ship backed by tests.

Yes, test-driven development requires a test runner and minimal project scaffolding to execute tests and verify behavior during development. These setup tools drive the red-green-refactor cycle from planning to verification.

Yes, test-driven development has broad applicability for new features, bug fixes, and refactoring across projects. It guides the red-green-refactor cycle to ensure any code changes are backed by failing tests before implementation.

Adopting test-driven development is the best way to ensure features ship with tests first. It enforces writing failing tests before implementation, guiding the red-green-refactor cycle from planning to verification for improved code quality.

Writing a failing test before implementation ensures code is backed by verified behavior. Test-driven development drives design through tests, starting with a small function to observe failure, then implementing minimal code to pass.