Question

Assume that I have a public Class A and an Abstract class B such that B only contains protected methods. Now let A inherit from B.

Now my question is how do I(or should I) test if A inherits from B.

Answer 1

Using polymorphism, you will for sure be able to do as follows:

public class ClassB {
    protected MethodB() {
    }
}

public class ClassA : ClassB {
}


[TestFixture()]
public class TestA {
    [Test()]
    public void IsInstanceOfB() {
        ClassA a = new ClassA();
        Assert.IsInstanceOf(typeof(ClassB), a);
    }
}

That is using NUnit, I guess there might be a similar approach with xUnit.