test-driven-development

The red-green-refactor cycle in test-driven development requires writing a failing test first, implementing minimal code to pass it, and refactoring while keeping tests green to ensure code quality.

You fix unreliable features using test-first development by driving implementation with failing tests, ensuring code is designed to meet expected behavior from the start and reducing defects across software features and bug fixes.

Yes, test-driven development applies to refactors by keeping tests green while you clean up code, ensuring that structural improvements do not break existing functionality or introduce new defects during the process.

Writing a failing test first improves software quality by providing early failure signals, ensuring the implementation is strictly designed to meet expected behavior and reducing misaligned functionality from the start.

The best way to start test-driven development for a new feature is to write a failing test that defines the expected behavior, then implement the minimal code required to make that test pass before refactoring.

Yes, test-driven development works for bug fixes by requiring you to write a failing test that reproduces the bug first, ensuring the subsequent minimal code implementation resolves the issue and prevents regression.