What are some advanced mocking techniques in C#?

What are some advanced mocking techniques in C#?

Advanced mocking techniques in C# include using frameworks like Moq or NSubstitute for creating complex mocks, setting up behavior for specific scenarios, and verifying interactions.

Can you explain how to use Moq for mocking dependencies?

Sure! With Moq, you can create a mock object using var mock = new Mock<IYourInterface>();, set up methods with mock.Setup(m => m.Method()).Returns(value);, and verify calls with mock.Verify(m => m.Method(), Times.Once());.

What are some common pitfalls when using mocking?

Common pitfalls include over-mocking, which can lead to fragile tests, and not properly verifying interactions, which may result in false positives.

How do I decide when to use mocking in my tests?

Use mocking when you want to isolate the unit of work, avoid dependencies on external systems, or when the dependencies are complex and slow.