What Will Be The Code I Can Write Under Create Unit Tests For The Below Program To Run Test Methods.

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

namespace ConsoleApplication1
{
    public class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("enter a");
            int a = Convert.ToInt32(Console.ReadLine());
            Console.WriteLine("enter b");
            int b = Convert.ToInt32(Console.ReadLine());
            Class1 obj = new Class1();
            int c = 0;
            obj.Add(a, b, out c);
            Console.WriteLine(c);
            Console.ReadLine();
          }
        public class Class1
        {

            public void Add(int a, int b, out int c)
            {
                c = a + b;
            }
        }
    }
}