Using Moq To Test An Abstract Class

Question

I am trying to run a unit test on a method in an abstract class. I have condensed the code below:

Abstract Class:

public abstract class TestAb
{
    public void Print()
    {
        Console.WriteLine("method has been called");
    }
}

Test:

[Test]
void Test()
{
    var mock = new Mock<TestAb>();
    mock.CallBase = true;
    var ta = mock.Object;
    ta.Print();
    mock.Verify(m => m.Print());
}

Message:

Method is not public

What am I doing wrong here? My goal is to test the methods inside the abstract class using he Moq framework.

Answer 1

The message is because your Test() method is not public. Test methods need to be public. Even after making the test method public it will fail as you can only verify abstract/virtual methods. So in your case you will have to make the method virtual since you have implementation.