NUnit Mocking not working for Singleton Method

Question

Bear with me, I\'m new to NUnit. I come from the land of Rails, so some of this is new to me.

I have a line of code that looks like this:

var code =         


        

Answer 1

Seems there is a kind of solution for this using reflection, or maybe I totally misunderstood this.

It is discussed here: http://www.geekbeing.com/2010/05/23/how-to-unit-test-singleton-hack-in-c

Could it really works?

public class TestableSingleton : SingletonClass
{
  public TestableSingleton ()
  {
    FieldInfo fieldInfo = typeof(SingletonClass)
        .GetField("_instance",
        BindingFlags.Static | BindingFlags.NonPublic);
    fieldInfo.SetValue(Instance, this);
  }
}

Project availabe on https://github.com/rbabreu/TestableSingleton

Actually I could not compile it on Visual Studio since the SingletonClass would have a private constructor. If someone get it to work would be great to avoid the overhead of adapter pattern.