using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MoqStudy.MockModel
{
    public class DemoHelper : IDemo
    {
        public virtual int Add(int a, int b)
        {
            return a = b;
        }

        public int Minus(int a, int b)
        {
            return a - b;
        }
    }

    public interface IDemo
    {
        int Minus(int a, int b);
    }

    public interface CommandBaseProtectedMembers
    {
        bool Execute(string arg);
    }

    public interface TeacherDoubling
    {
        decimal Doubling(decimal number);
    }
}