Back from summer vacations and back on this series about Legacy code. In this post, we will talk about the importance of unit testing in order to understand and a Legacy application, before to start any change.

• En français : Application Legacy – Refactoring ou reengineering? (IV)
• In English: Legacy application – Refactoring or reengineering? (IV)
• En Castellano: Aplicación Legacy – ¿Refactorización o reingeniería? (IV)

Enjoy!