How do I unit test static classes in C#?

How do I unit test static classes in C#?

Unit testing static classes can be tricky since they can't be instantiated. You can use techniques like dependency injection or create wrapper classes.

What if I can't change the static class?

If you can't modify the static class, consider using mocking frameworks like Moq to create a mock of the static methods.

Can you give me an example of using Moq with static classes?

Sure! You can create an interface for the static methods and then use Moq to mock that interface in your tests.

Are there any limitations to testing static classes?

Yes, testing static classes can lead to tight coupling and make your code less flexible. It's often better to use instance methods.