public void OldestUsersTest()
        {
            User        result = new User("Oldest", "User", "M", 100);
            List <User> users  = new List <User>();

            users.Add(result);
            users.Add(new User("aa", "a", "M", 2));
            users.Add(new User("bb", "b", "M", 22));
            users.Add(new User("cc", "c", "M", 5));
            users.Add(new User("dd", "d", "M", 33));
            ComandeExecutor test2 = new ComandeExecutor();
            User            rez   = test2.OldestUser(users);

            Assert.Equals(result, rez);
        }