using System;

using System.Collections;

using System.Net;

using System.Linq;

using NUnit.Framework;

​

public class Program

{

    public static void Main() 

    {

        // testing https://datatracker.ietf.org/doc/html/rfc5969

        var x = new NUnitLite.AutoRun().Execute(new[] {"--noh", "--noc"});

        Console.WriteLine("");

        Console.WriteLine("----------------------------------------------");

        Console.WriteLine(x == 0 ? "All Test Passed... :¬)" : $"{x} tests failed... :¬(");

    }

}

​

[TestFixture]

public class BitTests

{

    [TestCase("81.226.117.221", 0, 32, "2001:2002::", "2001:2002:81.226:117.221::/32")]

    [TestCase("10.4.5.6", 8, 32, "2001:db8::", "2001:db8:4.5:6.0::/32")]

    [TestCase("80.223.255.254", 14, 38, "2001:2003:f000::", "2001:db8:4.5:6.0::/32")]

    [TestCase("80.223.255.254", 16, 40, "2001:2003:fa00::", "2001:db8:4.5:6.0::/32")]

    public void Run6rdParamsTest(string v4Addr, int v4Mask, int v4Len, string v6prefix, string expected)

    {

        var v6Addr = IPAddress.Parse(v6prefix);

        var v6hex = string.Concat(v6Addr.GetAddressBytes().Select(b => $"{b:x2}"));

        Console.WriteLine(v6hex);

​

        var bits = new BitArray(v6Addr.GetAddressBytes());

        foreach (bool o in (IEnumerable)bits)

            Console.Write(o);

        Console.WriteLine();

    }

}

​