using System;
using System.Collections.Generic;

namespace BoxingAllocationsTest
{
    public class Program
    {
        private const int iterations = 100000;

        public enum TestEnum
        {
            A = 0,
            B = 1,
            C = 2,
            D = 3
        }

        public static void Main(string[] _)
        {
            Dictionary<TestEnum, int> dictionary = new Dictionary<TestEnum, int>()
            {
                { TestEnum.A, 0 },
                { TestEnum.B, 1 },
                { TestEnum.C, 2 },
                { TestEnum.D, 3 },
            };

            Random random = new Random();

            int[] input = new int[iterations];
            for (int i = 0; i < iterations; i++)
            {
                input[i] = random.Next(0, 4);
            }

            int[] output = new int[iterations];

            var memoryUsage = GC.GetTotalMemory(false);
            for (int i = 0; i < iterations; i++)
            {
                output[i] = dictionary[(TestEnum)input[i]];

                if (memoryUsage != GC.GetTotalMemory(false))
                {
                    Console.WriteLine("Garbage!");
                }
            }

            for (int i = 0; i < iterations; i++)
            {
                if (output[i] != input[i])
                {
                    Console.WriteLine("Error!");
                }
            }
        }
    }
}