using System;

using System.Linq;

using System.Reflection;

​

public class Program

{

    public interface ITest

    {

    }

​

    public class SomeOtherClass : MyBaseClass, ITest

    {

    }

​

    public class MyWorkingClass : MyBaseClass, ITest

    {

        private readonly ITest _test;

        public MyWorkingClass(ITest test)

        {

            _test = test;

        }

​

        public void SomeMethod()

        {

            MyBaseMethod();

        }

    }

​

    public class MyBaseClass

    {

        public void MyBaseMethod()

        {

            var fields = GetType().GetFields(BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.DeclaredOnly).ToList();

            foreach (var field in fields)

            {

                var fieldType = field.FieldType;

                var fieldInstance = field.GetValue(this);

                if (fieldInstance == null)

                    return;

                var methods = fieldInstance.GetType().GetRuntimeMethods();

                foreach (var item in methods)

                    Console.WriteLine(item.Name);

            }

        }

    }

​

    public static void Main()

    {

        var asd = new MyWorkingClass(new SomeOtherClass());

        asd.SomeMethod();

    }

}