test-driven-development

You start writing tests before implementation code by following the Red-Green-Refactor cycle, which involves writing a failing test first, creating the minimum code to pass it, and then refactoring.

The Red-Green-Refactor cycle in Test-Driven Development is a methodology where you write a failing test, implement the minimum code to make it pass, and then clean up the design without changing behavior.

Test-driven development improves code design and maintainability by encouraging modular, testable code, preventing bugs, and ensuring new features do not break existing functionality.

Yes, you can use test-driven development for any software development task requiring high quality and maintainability, such as building a new user authentication module.

During test-driven development, you should avoid common rationalizations and anti-patterns that bypass the Red-Green-Refactor cycle, ensuring your code remains robust and fully verifiable.