test-driven-development

To enforce the RED-GREEN-REFACTOR cycle, you must first write a failing test for the new feature, implement the minimal code required to pass it, and then refactor while keeping the test green. This strict Test-Driven Development workflow ensures high-quality, test-backed software production.

The best way to prevent code regressions during bug fixing and refactoring is to apply a strict Test-Driven Development workflow that ensures all new code is covered by failing tests before implementation, verifying every feature and preventing future issues.

Yes, test-driven development works with pytest in a terminal-based environment. The workflow requires the presence of a test runner like pytest to execute tests and apply the vertical tracer bullet methodology for new feature implementation and bug fixing.

To write tests first for a new API endpoint using TDD, you write a test asserting the expected response, watch it fail, implement the endpoint logic to make it pass, and then refactor the code while keeping the test green.

You should not use the RED-GREEN-REFACTOR cycle if your terminal-based development environment lacks a test runner like pytest, as the workflow strictly requires one to verify failing tests and guide the minimal code implementation process.