binary hacks, C# - rextester

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//Title of this code
//Rextester.Program.Main is the entry point for your code. Don't change it.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            Assert(BinaryHacks.IsOdd(1), "one is odd");
            Assert(!BinaryHacks.IsOdd(0), "zero is even");
            Assert(!BinaryHacks.IsOdd(2), "two is even");
            Assert(BinaryHacks.IsOdd(-1), "-1 is odd");
            Assert(!BinaryHacks.IsOdd(-202), "-202 is even");
            
            string expected = "00000000000000000000000000000101";
            Console.WriteLine(expected + "(" + expected.Length + ")");
            Assert((expected == BinaryHacks.GetBinnaryString(5)), "this is 5");
        }
        
        public class BinaryHacks
        {
            public static bool IsOdd(int number)
            {
                return ((number & 1) != 0);
            }
            
            
            public static string GetBinnaryString(int number)
            {
                char[] str = new char[32];
                for(int i = 31; i >= 0; i--) 
                {
                    str[i] = ((number & 1) == 0) ? '0' : '1';
                    number >>= 1;
                }
                string fullString = new string(str);
                Console.WriteLine(fullString + "(" + fullString.Length + ")");
                return fullString;
            }

}
        
        public static void Assert(bool result, string message)
        {
            Console.WriteLine("ASSERT {0} - {1}", result ? "PASS" : "FAIL", message);
        }
    }
}

Show compiler warnings [ + ] Show input
Compilation time: 0.09 sec, absolute running time: 0.08 sec, cpu time: 0.06 sec, average memory usage: 16 Mb, average nr of threads: 4