using System;

using NUnit.Framework;

​

​

public class Program

{

    public class Dupa{

    public int A;

    public Dupa(int a){

        A = a;

    }

}

    public static void Main()

    {

        Console.WriteLine("1 test");

        var jedenITenObiekt = new Dupa(1);

        var a =jedenITenObiekt;

        var b = jedenITenObiekt;

        Assert.AreEqual(a,b);

        Console.WriteLine("1 test success");

        Console.WriteLine("2 test");

        var c =new Dupa(1);

        var d = new Dupa(1);

        Assert.AreEqual(c,d);

        Console.WriteLine("2 test success");

    }

}