FLocal/ThirdParty/mysql-connector-net-6.2.3/MySql.Data/Tests/Source/PreparedStatements.cs

// Copyright (c) 2004-2008 MySQL AB, 2008-2009 Sun Microsystems, Inc.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as published by
// the Free Software Foundation
//
// There are special exceptions to the terms and conditions of the GPL 
// as it is applied to this software. View the full text of the 
// exception in file EXCEPTIONS in the directory of this software 
// distribution.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 

using System;
using System.Data;
using System.IO;
using NUnit.Framework;

namespace MySql.Data.MySqlClient.Tests
{
	[TestFixture]
	public class PreparedStatements : BaseTest
	{
        public PreparedStatements()
        {
            csAdditions += ";ignore prepare=false;";
        }

		[Test]
		public void Simple() 
		{
			execSQL("CREATE TABLE Test (id INT, dec1 DECIMAL(5,2), name VARCHAR(100))");
			execSQL("INSERT INTO Test VALUES (1, 345.12, 'abcd')");

			MySqlCommand cmd = new MySqlCommand("INSERT INTO Test VALUES(1,345.12,'abcd')", conn);
			cmd.Prepare();
			cmd.ExecuteNonQuery();

			cmd.CommandText = "SELECT * FROM Test";
			cmd.Prepare();
			using (MySqlDataReader reader = cmd.ExecuteReader())
            {
				Assert.IsTrue(reader.Read());
				Assert.AreEqual(1, reader.GetInt32(0));
				Assert.AreEqual(345.12, reader.GetDecimal(1));
				Assert.AreEqual("abcd", reader.GetString(2));
			}
		}


		[Test]
		public void SimplePrepareBeforeParms() 
		{
			execSQL("CREATE TABLE Test (one INTEGER, two INTEGER)");
			execSQL("INSERT INTO Test VALUES (1, 2)");

			// create the command and prepare the statement
			IDbCommand cmd = conn.CreateCommand();
			cmd.CommandText = "SELECT * FROM Test WHERE one = ?p1";

			// create the parameter
			IDbDataParameter p1 = cmd.CreateParameter();
			p1.ParameterName = "?p1";
			p1.DbType = DbType.Int32;
			p1.Precision = (byte)10;
			p1.Scale = (byte)0;
			p1.Size = 4;
			cmd.Parameters.Add(p1);
			p1.Value = 1;

            cmd.Prepare();
            // Execute the reader
			using (IDataReader reader = cmd.ExecuteReader())
            {
				// Fetch the first record
				reader.Read();

				Assert.AreEqual(1, reader.GetInt32(0));
				Assert.AreEqual(2, reader.GetInt32(1));
			}
		}

		[Test]
		public void DateAndTimes() 
		{
			execSQL("CREATE TABLE Test (id INT NOT NULL, d DATE, dt DATETIME, tm TIME, ts TIMESTAMP, PRIMARY KEY(id))");

			string sql = "INSERT INTO Test VALUES(?id, ?d, ?dt, ?tm, NULL)";
			MySqlCommand cmd = new MySqlCommand(sql, conn);

			DateTime dt = DateTime.Now;
			dt = dt.AddMilliseconds( dt.Millisecond * -1 );
			TimeSpan ts = new TimeSpan( 8, 11, 44, 56, 501 );

			cmd.Parameters.AddWithValue("?id", 1);
			cmd.Parameters.AddWithValue("?d", dt);
			cmd.Parameters.AddWithValue("?dt", dt);
			cmd.Parameters.AddWithValue("?tm", ts);
            cmd.Prepare();
            int count = cmd.ExecuteNonQuery();
			Assert.AreEqual(1, count, "Records affected by insert");

			cmd.CommandText = "SELECT * FROM Test";
			cmd.Prepare();
			
			using (MySqlDataReader reader = cmd.ExecuteReader())
            {
				reader.Read();
				Assert.AreEqual(1, reader.GetInt32(0), "Id column");
				Assert.AreEqual(dt.Date, reader.GetDateTime(1).Date, "Date column");

				DateTime dt2 = reader.GetDateTime(2);
				Assert.AreEqual(dt.Date, dt2.Date);
				Assert.AreEqual(dt.Hour, dt2.Hour);
				Assert.AreEqual(dt.Minute, dt2.Minute);
				Assert.AreEqual(dt.Second, dt2.Second);

				TimeSpan ts2 = reader.GetTimeSpan(3);
				Assert.AreEqual(ts.Days, ts2.Days);
				Assert.AreEqual(ts.Hours, ts2.Hours);
				Assert.AreEqual(ts.Minutes, ts2.Minutes);
				Assert.AreEqual(ts.Seconds, ts2.Seconds);

				Assert.AreEqual(dt.Date, reader.GetDateTime(4).Date, "Timestamp column");
			}
		}

		[Test]
		public void ResetCommandText() 
		{
			execSQL("CREATE TABLE Test (id int, name varchar(100))");
			execSQL("INSERT INTO Test VALUES (1, 'Test')");

			MySqlCommand cmd = new MySqlCommand("SELECT id FROM Test", conn);
			cmd.Prepare();
			object o = cmd.ExecuteScalar();
			Assert.AreEqual( 1, o );

			cmd.CommandText = "SELECT name FROM Test";
			cmd.Prepare();
			o = cmd.ExecuteScalar();
			Assert.AreEqual( "Test", o );
			
		}

		[Test]
		public void DifferentParameterOrder() 
		{
			execSQL("CREATE TABLE Test (id int NOT NULL AUTO_INCREMENT, " +
                    "id2 int NOT NULL, name varchar(50) DEFAULT NULL, " +
                    "id3 int DEFAULT NULL, PRIMARY KEY (id))");

			MySqlCommand cmd = new MySqlCommand("INSERT INTO Test (id, id2, name, id3) " +
                                                "VALUES(?id, ?id2, ?name,?id3)", conn);

            MySqlParameter id = new MySqlParameter();
            id.ParameterName = "?id";
            id.DbType = DbType.Int32;
            id.Value = DBNull.Value;

            MySqlParameter id2 = new MySqlParameter();
            id2.ParameterName = "?id2";
            id2.DbType = DbType.Int32;
            id2.Value = 2;

            MySqlParameter name = new MySqlParameter();
            name.ParameterName = "?name";
            name.DbType = DbType.String;
            name.Value = "Test";

            MySqlParameter id3 = new MySqlParameter();
            id3.ParameterName = "?id3";
            id3.DbType = DbType.Int32;
            id3.Value = 3;

            cmd.Parameters.Add(id);
            cmd.Parameters.Add(id2);
            cmd.Parameters.Add(name);
            cmd.Parameters.Add(id3);
            cmd.Prepare();
            Assert.AreEqual(1, cmd.ExecuteNonQuery());

            cmd.Parameters.Clear();

            id3.Value = DBNull.Value;
            name.Value = DBNull.Value;
            cmd.Parameters.Add(id);
            cmd.Parameters.Add(id2);
            cmd.Parameters.Add(id3);
            cmd.Parameters.Add(name);

            cmd.Prepare();
            Assert.AreEqual(1, cmd.ExecuteNonQuery());

            cmd.CommandText = "SELECT id3 FROM Test WHERE id=1";
            Assert.AreEqual(3, cmd.ExecuteScalar());

            cmd.CommandText = "SELECT name FROM Test WHERE id=2";
            Assert.AreEqual(DBNull.Value, cmd.ExecuteScalar());
		}

		[Test]
		public void Blobs() 
		{
			execSQL("CREATE TABLE Test (id INT, blob1 LONGBLOB, text1 LONGTEXT)");

			MySqlCommand cmd = new MySqlCommand("INSERT INTO Test VALUES (?id, ?blob1, ?text1)", conn);

			byte[] bytes = Utils.CreateBlob( 400000 );
			string inStr = "This is my text";

			cmd.Parameters.AddWithValue("?id", 1);
			cmd.Parameters.AddWithValue("?blob1", bytes);
			cmd.Parameters.AddWithValue("?text1", inStr);
            cmd.Prepare();
            int count = cmd.ExecuteNonQuery();
			Assert.AreEqual( 1, count );

			cmd.CommandText = "SELECT * FROM Test";
			cmd.Prepare();
			using (MySqlDataReader reader = cmd.ExecuteReader())
            {
				Assert.IsTrue( reader.Read() );
				Assert.AreEqual( 1, reader.GetInt32(0) );
				Assert.AreEqual( bytes.Length, reader.GetBytes( 1, 0, null, 0, 0 ));	
				byte[] outBytes = new byte[ bytes.Length ];
				reader.GetBytes( 1, 0, outBytes, 0, bytes.Length );
				for (int x=0; x < bytes.Length; x++)
					Assert.AreEqual( bytes[x], outBytes[x] );
				Assert.AreEqual( inStr, reader.GetString( 2 ) );
			}
		}

		[Test]
		public void SimpleTest2() 
		{
			execSQL("CREATE TABLE Test (one integer, two integer, three integer, four integer, five integer, six integer, seven integer)");
			execSQL("INSERT INTO Test VALUES (1, 2, 3, 4, 5, 6, 7)");

			// create the command and prepare the statement
			IDbCommand cmd = conn.CreateCommand();
			cmd.CommandText = "SELECT one, two, three, four, five, six, seven FROM Test";
			cmd.Prepare();
			// Execute the reader
			using (IDataReader reader = cmd.ExecuteReader())
            {
				// Fetch the first record
				reader.Read();

				Assert.AreEqual( 1, reader.GetInt32(0) );
				Assert.AreEqual( 2, reader.GetInt32(1) );
				Assert.AreEqual( 3, reader.GetInt32(2) );
				Assert.AreEqual( 4, reader.GetInt32(3) );
				Assert.AreEqual( 5, reader.GetInt32(4) );
				Assert.AreEqual( 6, reader.GetInt32(5) );
				Assert.AreEqual( 7, reader.GetInt32(6) );
			}
		}

		[Test]
		public void Bug6271() 
		{
            if (Version < new Version(4, 1)) return;

			// Create the table again
			execSQL("CREATE TABLE `Test2` (id INT unsigned NOT NULL auto_increment, " +
				"`xpDOSG_Name` text,`xpDOSG_Desc` text, `Avatar` MEDIUMBLOB, `dtAdded` DATETIME, `dtTime` TIMESTAMP, " +
				"PRIMARY KEY(id)) ENGINE=InnoDB DEFAULT CHARSET=latin1" );

			string sql = "INSERT INTO `Test2` (`xpDOSG_Name`,`dtAdded`, `xpDOSG_Desc`,`Avatar`, `dtTime`) " +
				"VALUES(?name, ?dt, ?desc, ?Avatar, NULL)";

			MySqlCommand cmd = new MySqlCommand(sql, conn);

			DateTime dt = DateTime.Now;
			dt = dt.AddMilliseconds(dt.Millisecond * -1);

			byte[] xpDOSG_Avatar = Utils.CreateBlob(13000);
			cmd.Parameters.AddWithValue("?name", "Ceci est un nom");

			cmd.Parameters.AddWithValue("?desc", "Ceci est une description facile <EFBFBD> plantouiller");
			cmd.Parameters.AddWithValue("?avatar",xpDOSG_Avatar); 
			cmd.Parameters.AddWithValue("?dt", dt);
            cmd.Prepare();
            int count = cmd.ExecuteNonQuery();
			Assert.AreEqual(1, count);

			cmd.CommandText = "SELECT * FROM Test2";
			using (MySqlDataReader reader = cmd.ExecuteReader())
            {
				Assert.IsTrue(reader.Read());
				Assert.AreEqual("Ceci est un nom", reader.GetString(1));
				Assert.AreEqual(dt.ToString("G"), reader.GetDateTime(4).ToString("G"));
				Assert.AreEqual("Ceci est une description facile <EFBFBD> plantouiller", reader.GetString(2));
				
				long len = reader.GetBytes(3, 0, null, 0, 0);
				Assert.AreEqual(xpDOSG_Avatar.Length, len);
				byte[] outBytes = new byte[len];
				reader.GetBytes(3, 0, outBytes, 0, (int)len);

				for (int x=0; x < xpDOSG_Avatar.Length; x++)
					Assert.AreEqual(xpDOSG_Avatar[x], outBytes[x]);
			}
		}

		[Test]
		public void SimpleTest() 
		{
			execSQL("CREATE TABLE Test (one integer, two integer )");
			execSQL("INSERT INTO Test VALUES( 1, 2)");
			// create the command and prepare the statement
			IDbCommand cmd = conn.CreateCommand();
			cmd.CommandText = "SELECT * FROM Test where one = ?p1";
			// create the parameter
			IDbDataParameter p1 = cmd.CreateParameter();
			p1.ParameterName = "?p1";
			p1.DbType = DbType.Int32;
			p1.Precision = (byte)10;
			p1.Scale = (byte)0;
			p1.Size = 4;
			cmd.Parameters.Add(p1);
			// prepare the command
			cmd.Prepare();
			// set the parameter value
			p1.Value = 1;
			// Execute the reader
			IDataReader reader = null;
			try 
			{
				reader = cmd.ExecuteReader();
				// Fetch the first record
				reader.Read();
			}
			catch (Exception ex) 
			{
				Assert.Fail( ex.Message );
			}
			finally 
			{
				if (reader != null) reader.Close();
			}
		}

		/// <summary>
		/// Bug #13662  	Prepare() truncates accented character input
		/// </summary>
		[Test]
		public void InsertAccentedCharacters()
		{
            if (Version < new Version(4, 1)) return;

			execSQL("CREATE TABLE Test (id INT UNSIGNED NOT NULL PRIMARY KEY " +
				"AUTO_INCREMENT, input TEXT NOT NULL) CHARACTER SET UTF8");
				// COLLATE " +
				//"utf8_bin");
			using (MySqlConnection conn2 = new MySqlConnection(GetConnectionString(true) + 
				";charset=utf8"))
			{
				conn2.Open();

				MySqlCommand cmd = new MySqlCommand("INSERT INTO Test(input) " +
					"VALUES (?input) ON DUPLICATE KEY UPDATE " +
					"id=LAST_INSERT_ID(id)", conn2);
				cmd.Parameters.Add(new MySqlParameter("?input", ""));
				cmd.Prepare();
				cmd.Parameters[0].Value = "irache mart<EFBFBD>nez@yahoo.es aol.com";
				cmd.ExecuteNonQuery();

				MySqlCommand cmd2 = new MySqlCommand("SELECT input FROM Test", conn2);
				Assert.AreEqual("irache mart<EFBFBD>nez@yahoo.es aol.com",
					cmd2.ExecuteScalar());
			}
		}

		/// <summary>
		/// Bug #13541  	Prepare breaks if a parameter is used more than once
		/// </summary>
		[Test]
		public void UsingParametersTwice()
		{
            if (Version < new Version(4, 1)) return;

			execSQL(@"CREATE TABLE IF NOT EXISTS Test (input TEXT NOT NULL, 
				UNIQUE (input(100)), state INT NOT NULL, score INT NOT NULL)");

			MySqlCommand cmd = new MySqlCommand(@"Insert into Test (input, 
				state, score) VALUES (?input, ?st, ?sc) ON DUPLICATE KEY 
				UPDATE state=state|?st;", conn);
			cmd.Parameters.Add (new MySqlParameter("?input", ""));
			cmd.Parameters.Add (new MySqlParameter("?st", Convert.ToInt32(0)));
			cmd.Parameters.Add (new MySqlParameter("?sc", Convert.ToInt32(0)));
			cmd.Prepare();

			cmd.Parameters["?input"].Value = "test";
			cmd.Parameters["?st"].Value = 1;
			cmd.Parameters["?sc"].Value = 42;
			int result = cmd.ExecuteNonQuery();
			Assert.AreEqual(1, result);

			MySqlDataAdapter da = new MySqlDataAdapter("SELECT * FROM Test", conn);
			DataTable dt = new DataTable();
			da.Fill(dt);
			Assert.AreEqual(1, dt.Rows.Count);
			Assert.AreEqual("test", dt.Rows[0]["input"]);
			Assert.AreEqual(1, dt.Rows[0]["state"]);
			Assert.AreEqual(42, dt.Rows[0]["score"]);
		}

        /// <summary>
        /// Bug #19261  	Supplying Input Parameters
        /// </summary>
        [Test]
        public void MoreParametersOutOfOrder()
        {
            if (Version < new Version(4, 1)) return;

            execSQL("CREATE TABLE `Test` (`BlackListID` int(11) NOT NULL auto_increment, " +
                    "`SubscriberID` int(11) NOT NULL, `Phone` varchar(50) default NULL, " +
                    "`ContactID` int(11) default NULL, " +
                    "`AdminJunk` tinyint(1) NOT NULL default '0', " +
                    "PRIMARY KEY  (`BlackListID`), KEY `SubscriberID` (`SubscriberID`))");

            IDbCommand cmd = conn.CreateCommand();
            cmd.CommandText = "INSERT INTO `Test`(`SubscriberID`,`Phone`,`ContactID`, " +
                "`AdminJunk`) VALUES (?SubscriberID,?Phone,?ContactID, ?AdminJunk);";

            MySqlParameter oParameterSubscriberID = new MySqlParameter();
            oParameterSubscriberID.ParameterName = "?SubscriberID";
            oParameterSubscriberID.DbType = DbType.Int32;
            oParameterSubscriberID.Value = 1;

            MySqlParameter oParameterPhone = new MySqlParameter();
            oParameterPhone.ParameterName = "?Phone";
            oParameterPhone.DbType = DbType.String;
            oParameterPhone.Value = DBNull.Value;

            MySqlParameter oParameterContactID = new MySqlParameter();
            oParameterContactID.ParameterName = "?ContactID";
            oParameterContactID.DbType = DbType.Int32;
            oParameterContactID.Value = DBNull.Value;

            MySqlParameter oParameterAdminJunk = new MySqlParameter();
            oParameterAdminJunk.ParameterName = "?AdminJunk";
            oParameterAdminJunk.DbType = DbType.Boolean;
            oParameterAdminJunk.Value = true;

            cmd.Parameters.Add(oParameterSubscriberID);
            cmd.Parameters.Add(oParameterPhone);
            cmd.Parameters.Add(oParameterAdminJunk);
            cmd.Parameters.Add(oParameterContactID);

            cmd.Prepare();
            int cnt = cmd.ExecuteNonQuery();
            Assert.AreEqual(1, cnt);
        }

		/// <summary>
		/// Bug #16627 Index and length must refer to a location within the string." when executing c
		/// </summary>
		[Test]
		public void ParameterLengths()
		{
            if (Version < new Version(4, 1)) return;
			execSQL("CREATE TABLE Test (id int, name VARCHAR(255))");

			MySqlCommand cmd = new MySqlCommand("INSERT INTO Test VALUES (?id, ?name)", conn);
			cmd.Parameters.Add("?id", MySqlDbType.Int32);
			cmd.Parameters.Add("?name", MySqlDbType.VarChar);
			cmd.Parameters[1].Size = 255;
			cmd.Prepare();

			cmd.Parameters[0].Value = 1;
			cmd.Parameters[1].Value = "short string";
			cmd.ExecuteNonQuery();

			MySqlDataAdapter da = new MySqlDataAdapter("SELECT * FROM Test", conn);
			DataTable dt = new DataTable();
			da.Fill(dt);
			Assert.AreEqual(1, dt.Rows.Count);
			Assert.AreEqual(1, dt.Rows[0]["id"]);
			Assert.AreEqual("short string", dt.Rows[0]["name"]);
		}

        /// <summary>
        /// Bug #18570  	Unsigned tinyint (NET byte) incorrectly determined param type from param val
        /// </summary>
        [Test]
        public void UnsignedTinyInt()
        {
            if (Version < new Version(4, 1)) return;

            execSQL("CREATE TABLE Test(ID TINYINT UNSIGNED NOT NULL, " +
	            "Name VARCHAR(50) NOT NULL,	PRIMARY KEY (ID), UNIQUE (ID), " +
                "UNIQUE (Name))");
            execSQL("INSERT INTO Test VALUES ('127', 'name1')");
            execSQL("INSERT INTO Test VALUES ('128', 'name2')");
            execSQL("INSERT INTO Test VALUES ('255', 'name3')");

            string sql = " SELECT count(*) FROM Test WHERE ID = ?id";

            MySqlCommand command = new MySqlCommand();
            command.CommandText = sql;
            command.CommandType = CommandType.Text;
            command.Connection = (MySqlConnection)conn;

            command.Parameters.AddWithValue("?id", (byte)127);
            command.Prepare();
            object count = command.ExecuteScalar();
            Assert.AreEqual(1, count);

            command.Parameters.Clear();
            command.Parameters.AddWithValue("?id", (byte)128);
            count = command.ExecuteScalar();
            Assert.AreEqual(1, count);

            command.Parameters.Clear();
            command.Parameters.AddWithValue("?id", (byte)255);
            count = command.ExecuteScalar();
            Assert.AreEqual(1, count);

            command.Parameters.Clear();
            command.Parameters.AddWithValue("?id", "255");
            count = command.ExecuteScalar();
            Assert.AreEqual(1, count);
        }

        /// <summary>
        /// Bug #16934 Unsigned values > 2^63 (UInt64) cannot be used in prepared statements
        /// </summary>
        [Test]
        public void UnsignedValues()
        {
            if (Version < new Version(4, 1)) return;

            execSQL("CREATE TABLE Test (ulVal BIGINT UNSIGNED, lVal INT UNSIGNED, " +
                "mVal MEDIUMINT UNSIGNED, sVal SMALLINT UNSIGNED)");

            MySqlCommand cmd = new MySqlCommand("INSERT INTO Test VALUES (?ulVal, " +
                "?lVal, ?mVal, ?sVal)", conn);
            cmd.Parameters.Add("?ulVal", MySqlDbType.UInt64);
            cmd.Parameters.Add("?lVal", MySqlDbType.UInt32);
            cmd.Parameters.Add("?mVal", MySqlDbType.UInt24);
            cmd.Parameters.Add("?sVal", MySqlDbType.UInt16);
            cmd.Prepare();
            cmd.Parameters[0].Value = UInt64.MaxValue;
            cmd.Parameters[1].Value = UInt32.MaxValue;
            cmd.Parameters[2].Value = 16777215;
            cmd.Parameters[3].Value = UInt16.MaxValue;
            Assert.AreEqual(1, cmd.ExecuteNonQuery());
            cmd.CommandText = "SELECT * FROM Test";
            cmd.CommandType = CommandType.Text;
            using (MySqlDataReader reader = cmd.ExecuteReader())
            {
                reader.Read();
                Assert.AreEqual(UInt64.MaxValue, reader.GetUInt64(0));
                Assert.AreEqual(UInt32.MaxValue, reader.GetUInt32(1));
                Assert.AreEqual(16777215, reader.GetUInt32(2));
                Assert.AreEqual(UInt16.MaxValue, reader.GetUInt16(3));
            }
        }

        /// <summary>
        /// Bug #18391 Better error handling for the .NET class "MySqlCommand" needed. 
        /// </summary>
        [Test]
        public void PrepareEmptyString()
        {
            try
            {
                MySqlCommand cmd = new MySqlCommand("", conn);
                cmd.Prepare();
                cmd.ExecuteNonQuery();
                Assert.Fail("Should not get here");
            }
            catch (InvalidOperationException)
            {
            }
        }

        /// <summary>
        /// Bug #14115 Prepare() with compound statements breaks 
        /// </summary>
        [Test]
        public void CompoundStatements()
        {
            execSQL("CREATE TABLE IF NOT EXISTS Test ("+
	            "id INT UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT," +
	            "test1 INT UNSIGNED, test2 INT UNSIGNED)");

            try
            {
                MySqlCommand cmd = conn.CreateCommand();
                cmd.CommandText = "INSERT INTO Test VALUES (NULL, ?t1, ?t2);" +
                    "SELECT last_insert_id()";
                cmd.Parameters.Add("?t1", MySqlDbType.Int32);
                cmd.Parameters.Add("?t2", MySqlDbType.Int32);
                cmd.Prepare();
                Assert.Fail("Should not reach here");
            }
            catch (Exception)
            {
            }
        }

        [Test]
        public void SchemaOnly()
        {
            execSQL("CREATE TABLE Test (id INT, name VARCHAR(50))");

            MySqlCommand cmd = new MySqlCommand("SELECT * FROM Test", conn);
            cmd.Prepare();
            using (MySqlDataReader reader = cmd.ExecuteReader(CommandBehavior.SchemaOnly))
            {
                reader.Read();
            }
        }

        private int GetPreparedStatementCount()
        {
            MySqlCommand cmd = new MySqlCommand("SHOW GLOBAL STATUS LIKE 'Prepared%'", conn);
            using (MySqlDataReader reader = cmd.ExecuteReader())
            {
                reader.Read();
                string s = reader.GetString(1);
                return Int32.Parse(s);
            }
        }

        [Test]
        public void ClosingCommandsProperly()
        {
            if (Version < new Version(5, 0)) return;

            execSQL("CREATE TABLE Test (id INT, name VARCHAR(50))");

            string connStr = GetConnectionString(true) +
                ";ignore prepare=false";
            using (MySqlConnection c = new MySqlConnection(connStr))
            {
                c.Open();

                int initialCount = GetPreparedStatementCount();

                for (int i = 0; i < 10; i++)
                {
                    using (MySqlCommand cmd =
                        new MySqlCommand("INSERT INTO Test VALUES (?id, ?name)", c))
                    {
                        cmd.Parameters.Add("?id", MySqlDbType.Int32);
                        cmd.Parameters.Add("?name", MySqlDbType.VarChar);
                        cmd.Prepare();
                        cmd.Parameters[0].Value = i;
                        cmd.Parameters[1].Value = "foobar";
                        cmd.ExecuteNonQuery();
                    }
                }
                c.Ping();
                Assert.AreEqual(initialCount, GetPreparedStatementCount());
            }
        }

        /// <summary>
        /// Bug #37968 Prepared statements byte/tinyint causes data corruption.
        /// </summary>
        [Test]
        public void InsertingUnsignedTinyInt()
        {
            execSQL("DROP TABLE IF EXISTS Test");
            execSQL(@"CREATE TABLE Test(id TINYINT UNSIGNED NOT NULL, 
                id2 INT UNSIGNED, id3 TINYINT UNSIGNED, id4 INT UNSIGNED NOT NULL)");

            MySqlCommand cmd = new MySqlCommand("INSERT INTO Test VALUES (?id, ?id2, ?id3, ?id4)", conn);
            cmd.Parameters.Add("?id", MySqlDbType.UByte);
            cmd.Parameters.Add("?id2", MySqlDbType.UByte);
            cmd.Parameters.Add("?id3", MySqlDbType.UByte);
            cmd.Parameters.Add("?id4", MySqlDbType.UByte);
            cmd.Prepare();

            cmd.Parameters[0].Value = 127;
            cmd.Parameters[1].Value = 1;
            cmd.Parameters[2].Value = 2;
            cmd.Parameters[3].Value = 3;
            cmd.ExecuteNonQuery();

            MySqlDataAdapter da = new MySqlDataAdapter("SELECT * FROM Test", conn);
            DataTable dt = new DataTable();
            da.Fill(dt);
            Assert.AreEqual(1, dt.Rows.Count);
            Assert.AreEqual(127, dt.Rows[0][0]);
            Assert.AreEqual(1, dt.Rows[0][1]);
            Assert.AreEqual(2, dt.Rows[0][2]);
            Assert.AreEqual(3, dt.Rows[0][3]);
        }

        /// <summary>
        /// Bug #39275	Inserting negative time value through the use of MySqlParameter throws exception
        /// Bug #39294	Reading negative time value greater than -01:00:00 return positive value
        /// </summary>
        [Test]
        public void NegativeTimePrepared()
        {
            NegativeTime(true);
            ReadNegativeTime(true);
        }

        /// <summary>
        /// Bug #39275	Inserting negative time value through the use of MySqlParameter throws exception
        /// Bug #39294	Reading negative time value greater than -01:00:00 return positive value
        /// </summary>
        [Test]
        public void NegativeTimeNonPrepared()
        {
            NegativeTime(false);
            ReadNegativeTime(false);
        }

        public void NegativeTime(bool prepared)
        {
            execSQL("DROP TABLE IF EXISTS Test");
            execSQL(@"CREATE TABLE Test(id int, t time)");

            MySqlCommand cmd = new MySqlCommand(@"INSERT INTO Test VALUES (1, @t)", conn);
            cmd.Parameters.Add("@t", MySqlDbType.Time);

            TimeSpan[] times = new TimeSpan[8] { 
                new TimeSpan(-10, 0, 0), new TimeSpan(2, -5, 10, 20),
                new TimeSpan(20, -10, 10), new TimeSpan(0, -15, 25),
                new TimeSpan(-4, -10, 20, -10), new TimeSpan(3, 17, 23, 6),
                new TimeSpan(-1,-2,-3,-4), new TimeSpan(0,0,0,-15) };
            if (prepared)
                cmd.Prepare();
            foreach (TimeSpan ts in times)
            {
                cmd.Parameters[0].Value = ts;
                cmd.ExecuteNonQuery();
            }

            cmd.CommandText = "SELECT * FROM Test";
            cmd.Parameters.Clear();
            using (MySqlDataReader reader = cmd.ExecuteReader())
            {
                foreach (TimeSpan ts in times)
                {
                    reader.Read();
                    TimeSpan t = reader.GetTimeSpan(1);
                    Assert.AreEqual(ts, t);
                }
            }
        }

        private void ReadNegativeTime(bool prepared)
        {
            execSQL("DROP TABLE IF EXISTS Test");
            execSQL("CREATE TABLE Test(id int, t time)");
            execSQL("INSERT INTO Test VALUES (1, '-00:10:00')");

            MySqlCommand cmd = new MySqlCommand("SELECT * FROM Test", conn);
            if (prepared)
                cmd.Prepare();
            using (MySqlDataReader reader = cmd.ExecuteReader())
            {
                reader.Read();
                TimeSpan ts = reader.GetTimeSpan(1);
                Assert.AreEqual(0, ts.Hours);
                Assert.AreEqual(-10, ts.Minutes);
                Assert.AreEqual(0, ts.Seconds);
            }
        }

        [Test]
        public void SprocOutputParams()
        {
            if (Version < new Version(6, 0, 8)) return;

            execSQL("CREATE PROCEDURE spTest(id INT, OUT age INT) BEGIN SET age=id; END");

            MySqlCommand cmd = new MySqlCommand("spTest", conn);
            cmd.Parameters.Add("@id", MySqlDbType.Int32);
            cmd.Parameters.Add("@age", MySqlDbType.Int32).Direction = ParameterDirection.Output;
            cmd.CommandType = CommandType.StoredProcedure;
            cmd.Prepare();

            cmd.Parameters[0].Value = 20;
            Assert.AreEqual(0, cmd.ExecuteNonQuery());
            Assert.AreEqual(20, cmd.Parameters[1].Value);

            execSQL("DROP PROCEDURE IF EXISTS spTest");
            execSQL("CREATE PROCEDURE spTest(id INT, OUT age INT) BEGIN SET age=age*2; END");

            cmd.Parameters[0].Value = 1;
            cmd.Parameters[1].Value = 20;
            Assert.AreEqual(0, cmd.ExecuteNonQuery());
            Assert.AreEqual(20, cmd.Parameters[1].Value);
        }

        [Test]
        public void SprocInputOutputParams()
        {
            if (Version < new Version(6, 0, 8)) return;

            execSQL("CREATE PROCEDURE spTest(id INT, INOUT age INT) BEGIN SET age=age*2; END");

            MySqlCommand cmd = new MySqlCommand("spTest", conn);
            cmd.Parameters.Add("@id", MySqlDbType.Int32);
            cmd.Parameters.Add("@age", MySqlDbType.Int32).Direction = ParameterDirection.InputOutput;
            cmd.CommandType = CommandType.StoredProcedure;
            cmd.Prepare();

            cmd.Parameters[0].Value = 1;
            cmd.Parameters[1].Value = 20;
            Assert.AreEqual(0, cmd.ExecuteNonQuery());
            Assert.AreEqual(40, cmd.Parameters[1].Value);
        }

        /// <summary>
        /// Bug #49794	MySqlDataReader.GetUInt64 doesn't work for large BIGINT UNSIGNED
        /// </summary>
        [Test]
        public void BigIntUnsigned()
        {
            execSQL("DROP TABLE IF EXISTS test");
            execSQL(@"CREATE TABLE test(id int(10) unsigned NOT NULL, testValue bigint(20) unsigned NOT NULL,
                        PRIMARY KEY  USING BTREE (Id)) ENGINE=InnoDB DEFAULT CHARSET=latin1");
            execSQL("INSERT INTO test(Id,TestValue) VALUES(1, 3000000000)");

            MySqlCommand cmd = new MySqlCommand("SELECT testValue FROM test WHERE id=@Id", conn);
            cmd.Parameters.Add("@id", MySqlDbType.UInt32);
            cmd.Prepare();

            cmd.Parameters["@id"].Value = 1;
            using (MySqlDataReader rdr = cmd.ExecuteReader())
            {
                rdr.Read();
                UInt64 v = rdr.GetUInt64(0);
                Assert.AreEqual(3000000000, v);
            }
        }
    }

    #region Configs
#if !CF
    [Category("Compressed")]
    public class PreparedStatementsSocketCompressed : PreparedStatements
    {
        protected override string GetConnectionInfo()
        {
            return String.Format("port={0};compress=true", port);
        }
    }

    [Category("Pipe")]
    public class PreparedStatementsPipe : PreparedStatements
    {
        protected override string GetConnectionInfo()
        {
            return String.Format("protocol=pipe;pipe name={0}", pipeName);
        }
    }

    [Category("Compressed")]
    [Category("Pipe")]
    public class PreparedStatementsPipeCompressed : PreparedStatements
    {
        protected override string GetConnectionInfo()
        {
            return String.Format("protocol=pipe;pipe name={0};compress=true", pipeName);
        }
    }

    [Category("SharedMemory")]
    public class PreparedStatementsSharedMemory : PreparedStatements
    {
        protected override string GetConnectionInfo()
        {
            return String.Format("protocol=memory; shared memory name={0}", memoryName);
        }
    }

    [Category("Compressed")]
    [Category("SharedMemory")]
    public class PreparedStatementsSharedMemoryCompressed : PreparedStatements
    {
        protected override string GetConnectionInfo()
        {
            return String.Format("protocol=memory; shared memory name={0};compress=true", memoryName);
        }
    }
#endif
    #endregion

}