using System;

using AutoBogus;

public class Program

{   

    public abstract class BaseFoo

    {

        public BaseFoo(string name)

        {

            Name = name;

        }

        public string Name { get; set; }

    }

    public class Foo : BaseFoo

    {

        public Foo(string name) : base(name) {}

    }

    public class Baa

    {

        public Baa(BaseFoo foo)

        {

            Foo = foo;

        }

        public BaseFoo Foo { get; set; }

    }

    public static void Main()

    {

        var baaFaker = new AutoFaker<Baa>();

        var baa = baaFaker.Generate();

        if (baa != null)

        {

            Console.WriteLine("baa generated!");

            if (baa.Foo != null)

            {

                Console.WriteLine("  **** FAILED to set abstract property to null");

            }

        }

    }

}