BitArray to array

BitArrayExtensions.cs

static class BitArrayExtensions
{
    public static byte[] ToByteArray(this BitArray bits)
    {
        // copied from https://stackoverflow.com/questions/560123/convert-from-bitarray-to-byte
        byte[] ret = new byte[(bits.Length + 7) >> 3];
        bits.CopyTo(ret, 0);
        return ret;
    }

    public static int[] ToInt32Array(this BitArray bits)
    {
        // copied from https://stackoverflow.com/questions/560123/convert-from-bitarray-to-byte
        int[] ret = new int[(bits.Length + 31) >> 5];
        bits.CopyTo(ret, 0);
        return ret;
    }
}

Tests.cs

using System.Collections;
using System.Diagnostics;

foreach (var bytesCount in Enumerable.Range(0, 200))
{
    var bb = GenerateBytes(bytesCount);
    Debug.Assert(new BitArray(bb).ToByteArray().SequenceEqual(bb));

    var ib = GenerateInts(bytesCount);
    Debug.Assert(new BitArray(ib).ToInt32Array().SequenceEqual(ib));
}

Console.WriteLine("Completed.");
Console.ReadKey();

static byte[] GenerateBytes(int count)
{
    var buf = new byte[count];
    new Random().NextBytes(buf);
    return buf;
}

static int[] GenerateInts(int count)
{
    var rnd = new Random();
    var buf = new int[count];
    for (var i = 0; i < count; i++)
    {
        buf[i] = rnd.Next();
    }
    return buf;
}