Introduction to Fody

Change class members to virtual as part of your build to help making TDD less effort.

Now you ask:

There is Virtuosity already. Why would I use EnableFaking instead?"

The answer:

EnableFaking intends to only make those types fakeable (make members virtual) that you otherwise would need to define an interface solely to be able to use the type with a fake framework like Fake It Easy.

Instead of

    public class MyImplementation : IMyInterface
    {
        public void MyMethod()
        {
        }
    }
    
    public interface IMyInterface
    {
        void MyMethod();
    }

you only have to write

    public class MyImplementation
    {
        public void MyMethod()
        {
        }
    }

and all other classes remain untouched.

There is a nuget package available here http://nuget.org/packages/EnableFaking.Fody

• public
• not a container (has only constructors and properties)
• not implementing any interfaces (I suggest faking the interfaces in these cases instead of the class)
• not sealed
• not nested

• public
• not static
• not virtual
• not a constructor

and changes them to virtual.

Define the attribute anywhere in your code (your code does not have a dependency to EnableFaking)

    [AttributeUsage(AttributeTargets.Class)]
    public class DoVirtualizeAttribute : Attribute
    {
    }

Add it to the class you want to be virtualized

    [DoVirtualize]
    public class YourClass
    {
    }