Clase Account inicial del tutorial NUnit

Account.cs

namespace Bank
{
    using System;

    public class Account
    {
        public void Deposit(decimal amount)
        {
            this.Balance += amount;
        }

        public void Withdraw(decimal amount)
        {
            this.Balance -= amount;
        }

        public void TransferFunds(Account destination, decimal amount)
        {
            throw new NotImplementedException();
        }

        public decimal Balance
        {
            get;
            private set;
        }
    }
}