**Different Ways of Mocking in Unit Testing**

Mocking is a crucial part of unit testing, and there are different ways to do it. You can use interfaces for loose coupling, such as mocking external services like a database. Delegates are great for flexibility when you need to pass behavior as a parameter, like sorting or filtering. Virtual methods are ideal for inheritance, like mocking abstract base classes or overwriting methods in a derived class. Each approach has its own pros and cons - which one you choose depends on your specific needs and preferences. #MockingInUnitTesting #ProgrammingTips #InterfacesVsDelegatesVsVirtual #ITExplainer