如何使用Moq具有使用模拟对象的方法操作的能力？

Question

I have an instantiation in constructor in test:

public class Car{

public string Method()
{
 return "test";
}
}

private readonly ICar _classUnderTest;
    public CarTests()
    {
        var collaboratingClass = new CollaboratingClass();
        _classUnderTest = new Car(collaboratingClass );
    }

If I use moq and pass mock instance like this:

    var collaboratingClass = new Mock<ICollaboratingClass>();
    _classUnderTest = new Car(collaboratingClass .Object);

...then I can't call method. The method from this mocked instance is not being called, so I can't use it for calculation. How can I make my mock object to be able to access method and do operation with mock object?

As you can see I don't want to have concrete dependencies here.

Answer 1

You can fake a return to your mocked class method. If you need the behavior from your dependency, it's no longer a unit test