test-driven-development

The red-green-refactor cycle in test-driven development is a process where you write a failing test, implement minimal code to pass it, and then refactor. This methodology ensures code reliability and prevents regressions while improving software design.

To write new features using test-driven development, start by writing a failing test for the desired behavior. Then implement the minimal code required to make the test pass, and finally refactor the code for better quality while ensuring tests remain green.

Yes, test-driven development works for fixing bugs and refactoring existing code. By writing a test that reproduces the bug first, you can verify the fix and confidently refactor without introducing regressions, maintaining high code quality standards.

Yes, you can use test-driven development for testing exceptions and async code in Python. The methodology provides clear test case examples for handling exceptions, asynchronous operations, using fixtures, and mocking to ensure comprehensive coverage.

You should use test-driven development to write reliable, maintainable code and prevent regressions. It improves your software design through testability, documents expected behavior, enables confident refactoring, and maintains high code quality standards throughout development.