Moq fake one method but use real implementation of another

Question

Given an interface IService that has Method1() and Method2().

I want to test that when Method1() throws an Exce

Answer 1

You can do this with:

var mock = new Mock(){ CallBase = true };
mock.Setup(m => m.Method1....

The above code will use the real implementation of MyNetworkStream for any method/property which is not explicitly setup. I.e. it'll call the real Method2(), while the Method1() will be the mocked version.

CallBase=true is usually meant to test abstract classes (if this is right or wrong, is out of the scope of this question).