Performance test code comparing IDataReader disposal prior to all records being read, using IDbCommand.Cancel() and without using Cancel()

gistfile1.cs

namespace DataReaderDisposeCancelTest
{
    using System;
    using System.Configuration;
    using System.Data;
    using System.Data.Common;

    internal class Program
    {
        private const int iterations = 50;

        private static void CancelTest(IDbCommand cmd)
        {
            for (int i = 0; i < iterations; i++)
            {
                using (IDataReader reader = cmd.ExecuteReader())
                {
                    reader.Read();
                    string x = reader[0] as string;
                    cmd.Cancel();
                }
            }
        }

        private static void Main(string[] args)
        {
            var cs = ConfigurationManager.ConnectionStrings["ConnectionString"];
            DbProviderFactory factory = DbProviderFactories.GetFactory(cs.ProviderName);
            using (var conn = factory.CreateConnection())
            {
                conn.ConnectionString = cs.ConnectionString;
                conn.Open();
                var cmd = conn.CreateCommand();
                cmd.CommandText = "select * from dbo.someTable";
                CancelTest(cmd);
                NoCancelTest(cmd);
            }
        }

        private static void NoCancelTest(IDbCommand cmd)
        {
            for (int i = 0; i < iterations; i++)
            {
                using (IDataReader reader = cmd.ExecuteReader())
                {
                    reader.Read();
                    string x = reader[0] as string;
                }
            }
        }
    }
}