test-driven-development

The Red-Green-Refactor cycle in test-driven development is a methodology where you write a failing test, implement minimal code to pass it, and then refactor the code for cleanliness to ensure quality and prevent regressions.

To write tests before implementation code, understand the problem domain context first, then create a failing test for the specific feature, write the minimal code required to make it pass, and finally refactor to maintain clean code.

You should use test-driven development when building new features or fixing bugs to catch errors early. It ensures code meets predefined test specifications, reducing bugs and facilitating long-term maintainability.

Yes, test-driven development integrates well with agile software development workflows. It enforces writing tests before implementation, supporting iterative development and continuous refactoring to maintain code quality throughout the cycle.

A limitation of test-driven development during refactoring is that it requires strict adherence to the cycle. You must understand the problem domain upfront and ensure tests fail and pass appropriately before refactoring to avoid introducing regressions.