X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=mcs%2Fclass%2FSystem.Data%2FTest%2FProviderTests%2FSystem.Data.Odbc%2FOdbcParameterCollectionTest.cs;h=f08c918974e3ea09f82d376fee7daa959979f81b;hb=bf5947a0fd2b523c30833605ee69b2b041aa43f4;hp=a05207a258ba8b929e6a6fd16920d3c8c3cc57a8;hpb=987f8c63e214937c50dcb308149f7558a2cbba41;p=mono.git

diff --git a/mcs/class/System.Data/Test/ProviderTests/System.Data.Odbc/OdbcParameterCollectionTest.cs b/mcs/class/System.Data/Test/ProviderTests/System.Data.Odbc/OdbcParameterCollectionTest.cs
index a05207a258b..f08c918974e 100644
--- a/mcs/class/System.Data/Test/ProviderTests/System.Data.Odbc/OdbcParameterCollectionTest.cs
+++ b/mcs/class/System.Data/Test/ProviderTests/System.Data.Odbc/OdbcParameterCollectionTest.cs
@@ -3,6 +3,7 @@
 //			  OdbcParameterCollection class
 // Author:
 //      Sureshkumar T (TSureshkumar@novell.com)
+//	Amit Biswas (amit@amitbiswas.com)
 //
 // Copyright (c) 2004 Novell Inc., and the individuals listed
 // on the ChangeLog entries.
@@ -47,20 +48,1198 @@ namespace MonoTests.System.Data.Odbc
 		[Test]
 		public void ParameterLengthTrimTest ()
 		{
-			IDbConnection conn = ConnectionManager.Singleton.Connection;
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
 			try {
-				ConnectionManager.Singleton.OpenConnection ();
-				OdbcCommand cmd = (OdbcCommand) conn.CreateCommand ();
+				OdbcCommand cmd = conn.CreateCommand ();
 				cmd.CommandType = CommandType.Text;
 				cmd.CommandText = "SELECT count(*) FROM employee WHERE fname=?";
-															     
-				OdbcParameter param = cmd.Parameters.Add("@fname", OdbcType.Text, 15);
+
+				OdbcParameter param = cmd.Parameters.Add("@fname", OdbcType.VarChar, 15);
 				param.Value = DateTime.Now.ToString ();
 				Assert.AreEqual (15, param.Size, "#1");
-				Convert.ToInt32(cmd.ExecuteScalar());
+				Assert.AreEqual (0, cmd.ExecuteScalar(), "#2");
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void InsertTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				OdbcParameter p2Age = new OdbcParameter (); //not initialized and not yet added
+				OdbcParameter p3Tmp = new OdbcParameter ("p3", "abc"); //not added
+
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				OdbcCmd.Parameters.Insert (1, p2Age); //Inserting the second parameter
+				Assert.AreEqual (2, OdbcCmd.Parameters.Count, "#2 The collection should contain 2 parameters");
+				
+				//inserting at upper boundary
+				OdbcCmd.Parameters.Insert (OdbcCmd.Parameters.Count, p3Tmp); //Inserting the third parameter, with name and value at index = count
+				Assert.AreEqual (3, OdbcCmd.Parameters.Count, "#3 The collection should contain 2 parameters");
+
+				//check the inserted positions
+				Assert.AreEqual (0, OdbcCmd.Parameters.IndexOf ("@lname"), "#4 The first parameter must be at index 0");
+				Assert.AreEqual (1, OdbcCmd.Parameters.IndexOf (p2Age), "#5 The inserted parameter p2Age must be at index 1");
+				Assert.AreEqual (2, OdbcCmd.Parameters.IndexOf (p3Tmp), "#6 The inserted parameter p3Tmp must be at index 2");
+				Assert.AreEqual (2, OdbcCmd.Parameters.IndexOf ("p3"), "#7 The inserted parameter p3 must be at index 2");
+				Assert.AreEqual (-1, OdbcCmd.Parameters.IndexOf ("non-existing-parameter"), "#8 Non-existing parameters should return -1");
+				
+				//check for default names and default values
+				Assert.AreEqual ("Parameter1", OdbcCmd.Parameters[1].ParameterName, "#9 Parameters inserted without any name must get a default name");
+				Assert.AreEqual (null, OdbcCmd.Parameters[1].Value, "#10 Parameters inserted without any value must have null value");
+				
+				Assert.AreEqual ("p3", OdbcCmd.Parameters[2].ParameterName, "#11 Parameters inserted without any name must get a default name");
+				Assert.AreEqual ("abc", OdbcCmd.Parameters[2].Value, "#12 Parameters inserted without any value must have null value");
+				
+				Assert.AreEqual (OdbcType.NVarChar,OdbcCmd.Parameters[1].OdbcType, "#13 Parameters with null value must be of type NVarChar");
+				Assert.AreEqual (OdbcType.Text,OdbcCmd.Parameters[0].OdbcType, "#14 Parameter at index 0 is of type Text");
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		/// <remarks>
+		/// Inserting parameters in between the collection should not
+		/// overwrite the existing parameters
+		/// </remarks>
+		[Test]
+		public void InsertNoOverwriteTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+
+				OdbcParameter p1Lname = OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				OdbcParameter p2Age = OdbcCmd.Parameters.Add ("@age", OdbcType.Int, 2);
+				OdbcParameter p3Tmp = OdbcCmd.Parameters.Add ("@Tmp", OdbcType.Text, 15);
+				OdbcParameter p4Tmp = new OdbcParameter ();
+				
+				Assert.AreEqual (3, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				OdbcCmd.Parameters.Insert (1, p4Tmp); //Inserting at index 1
+				Assert.AreEqual (4, OdbcCmd.Parameters.Count, "#2 Collection should contain 4 parameters");
+
+				//Existing parameters should not be overwritten
+				Assert.AreEqual (0, OdbcCmd.Parameters.IndexOf (p1Lname), "#3 The parameter at index 0 should not change");
+				Assert.AreEqual (1, OdbcCmd.Parameters.IndexOf (p4Tmp), "#4 The inserted parameter should be at index 1");
+				Assert.AreEqual (2, OdbcCmd.Parameters.IndexOf (p2Age), "#5 The parameter at index 1 should be at index 2 after inserting");
+				Assert.AreEqual (3, OdbcCmd.Parameters.IndexOf (p3Tmp), "#6 The parameter at index 2 should be at index 3 after inserting");
+				Assert.AreEqual (-1, OdbcCmd.Parameters.IndexOf ("non-existing-parameter"), "#7 Non-existing parameters should return -1");
+				
+				//check for default names and default values
+				Assert.AreEqual ("Parameter1", OdbcCmd.Parameters[1].ParameterName, "#8 Parameters inserted without any name must get a default name");
+				Assert.AreEqual (null, OdbcCmd.Parameters[1].Value, "#9 Parameters inserted without any value must have null value");
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void InsertNullTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				try {
+					OdbcCmd.Parameters.Insert (1, null);
+					Assert.Fail ("Expected exception ArgumentNullException was not thrown");
+				} catch (ArgumentNullException) {
+					Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#2 The collection must contain only one parameter after Insert failed");
+				}
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void InsertEmptyTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				try {
+					OdbcCmd.Parameters.Insert (1, string.Empty);
+					Assert.Fail ("Expected exception InvalidCastException was not thrown");
+				} catch (InvalidCastException) {
+					Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#2 The collection must contain only one parameter after Insert failed");
+				}
+					
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void InsertAlreadyContainedParameterTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				OdbcParameter p2Age = new OdbcParameter (); //not initialized and not yet added
+
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				OdbcCmd.Parameters.Insert (1, p2Age);
+				Assert.AreEqual (2, OdbcCmd.Parameters.Count, "#2 The collection must contain 2 parameters");
+				try {
+					OdbcCmd.Parameters.Insert (2, p2Age); //p2Age is already contained
+					Assert.Fail ("Expected exception ArgumentException not thrown");
+				} catch (ArgumentException) {
+					Assert.AreEqual (2, OdbcCmd.Parameters.Count, "#3 The collection must contain 2 parameters after Insert failed");
+				}
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void InsertArgumentGreaterThanCountTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				OdbcParameter p2Age = new OdbcParameter ();
+
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				try {
+					OdbcCmd.Parameters.Insert (OdbcCmd.Parameters.Count + 1, p2Age); //Inserting with wrong index
+					Assert.Fail ("Expected Exception ArgumentOutOfRangeException not thrown");
+				} catch (ArgumentOutOfRangeException) {
+					Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#2 The collection must contain only 1 parameter after Insert failed");
+				}
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void InsertNegativeArgumentTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				OdbcParameter p2Age = new OdbcParameter ();
+
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				try {
+					OdbcCmd.Parameters.Insert (-3, p2Age); //Insert with negative index
+					Assert.Fail ("Expected Exception ArgumentOutOfRangeException not thrown");
+				} catch (ArgumentOutOfRangeException) {
+					Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#2 The collection must contain only 1 parameter after Insert failed");
+				}
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void InsertNonOdbcParameterTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				try {
+					OdbcCmd.Parameters.Insert (1, 4);
+					Assert.Fail ("Expected exception InvalidCastException was not thrown");
+				} catch (InvalidCastException) {
+					Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#2 The collection must contain only 1 parameter after Insert failed");
+				}
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+
+		[Test]
+		public void AddRangeTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				OdbcParameter p2Age = new OdbcParameter (); //not initialized and not yet added
+				OdbcParameter p3Tmp = new OdbcParameter (); //not initialized and not yet added
+				OdbcParameter p4Tmp = new OdbcParameter (); //not initialized and not yet added
+				OdbcParameter p5Tmp = new OdbcParameter (); //not initialized and not yet added
+
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				OdbcParameter [] paramArray = new OdbcParameter [4];
+				paramArray [0] = p2Age;
+				paramArray [1] = p3Tmp;
+				paramArray [2] = p4Tmp;
+				paramArray [3] = p5Tmp;
+				OdbcCmd.Parameters.AddRange (paramArray);
+				Assert.AreEqual (5, OdbcCmd.Parameters.Count, "#2 The array elements are not added");
+				Assert.AreEqual (1, OdbcCmd.Parameters.IndexOf (p2Age), "#3 The first element must be added after the last parameter");
+				Assert.AreEqual (4, OdbcCmd.Parameters.IndexOf (p5Tmp), "#4 Not all elements are added");
+				Assert.AreEqual ("Parameter1", OdbcCmd.Parameters[1].ParameterName, "#5 Parameters added without any name must get a default name");
+				Assert.AreEqual (OdbcType.NVarChar,OdbcCmd.Parameters[1].OdbcType, "#6 Parameters with null value must be of type NVarChar");
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		//<remarks>
+		//If a parameter in the range is already contained, all the parameters before it are added and
+		//all the parameters after it are rejected
+		//</remarks>
+		[Test]
+		public void AddRangeParameterAlreadyContainedTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+				OdbcParameter p1Lname = OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				OdbcParameter p2Age = new OdbcParameter ();
+				OdbcParameter p3Tmp = new OdbcParameter ();
+
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				OdbcParameter [] paramArray = new OdbcParameter [3];
+				paramArray [0] = p2Age;
+				paramArray [1] = p1Lname; //p1Lname is already contained
+				paramArray [2] = p3Tmp;
+				try {
+					OdbcCmd.Parameters.AddRange (paramArray);
+					Assert.Fail ("Expected Exception ArgumentException not thrown");
+				} catch (ArgumentException){
+					Assert.AreEqual (2, OdbcCmd.Parameters.Count, "#2 The collection must contain excatly 2 elements after AddRange failed for the third element");
+				}
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		//<remarks>
+		//If a parameter in the range is null, all the elements in the range are rejected
+		//</remarks>
+		[Test]
+		public void AddRangeArgumentNullExceptionTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				OdbcParameter p2Age = new OdbcParameter ();
+				OdbcParameter p3Tmp = new OdbcParameter ();
+
+				OdbcParameter [] paramArray = new OdbcParameter [3];
+				paramArray [0] = p2Age;
+				paramArray [1] = p3Tmp;
+				paramArray [2] = null;
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				try {
+					OdbcCmd.Parameters.AddRange (paramArray);
+					Assert.Fail ("Expected Exception ArgumentNullException not thrown");
+				} catch (ArgumentNullException){
+					Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#2 If any of the parameters in the range is null, none of them should be added");
+				}
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void AddRangeParameterContainedInAnotherCollTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+
+				OdbcCommand OdbcCmd2 = conn.CreateCommand ();
+				OdbcCmd2.CommandType = CommandType.Text;
+				OdbcCmd2.CommandText = "SELECT lname FROM employee WHERE fname=? AND age=?";
+
+				OdbcParameter p1Lname = OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				OdbcParameter p2Age = new OdbcParameter ();
+				OdbcParameter p3Tmp = new OdbcParameter ();
+
+				OdbcParameter [] paramArray = new OdbcParameter [3];
+				paramArray [0] = p2Age;
+				paramArray [1] = p1Lname; //p1Lname is already contained in Odbccmd
+				paramArray [2] = p3Tmp;
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the parameter collection of OdbcCmd should contain only 1 parameter");
+				Assert.AreEqual (0, OdbcCmd2.Parameters.Count, "#2 Initialization error, the parameter collection of OdbcCmd2 should not contain any parameters");
+				try {
+					OdbcCmd2.Parameters.AddRange (paramArray);
+					Assert.Fail ("Expected Exception ArgumentException not thrown");
+				} catch (ArgumentException) {
+					Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#3 The parameter collection of OdbcCmd should not change");
+					Assert.AreEqual (1, OdbcCmd2.Parameters.Count, "#4 All the elements before the invalid element must be added to the collection of OdbcCmd2");
+				}
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void AddRangeMultiDimensionalArrayTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				OdbcParameter p2Age = new OdbcParameter ();
+				OdbcParameter p3Tmp = new OdbcParameter ();
+				OdbcParameter p4Tmp = new OdbcParameter ();
+				OdbcParameter p5Tmp = new OdbcParameter ();
+
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				OdbcParameter [,] paramArray = new OdbcParameter [2, 2];
+				paramArray [0, 0] = p2Age;
+				paramArray [0, 1] = p3Tmp;
+				paramArray [1, 0] = p4Tmp;
+				paramArray [1, 1] = p5Tmp;
+				OdbcCmd.Parameters.AddRange (paramArray);
+				Assert.AreEqual (5, OdbcCmd.Parameters.Count, "#2 Not all four parameters of the 2x2 Array are added");
+				Assert.AreEqual (1, OdbcCmd.Parameters.IndexOf (p2Age), "#3 The first element must be added after the last parameter");
+				Assert.AreEqual (4, OdbcCmd.Parameters.IndexOf (p5Tmp), "#4 Not all elements are added");
+				Assert.AreEqual (OdbcType.NVarChar,OdbcCmd.Parameters[4].OdbcType, "#5 Parameters with null value must be of type NVarChar");
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void AddRangeArrayValuesArgumentNullExceptionTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				OdbcParameter p2Age = new OdbcParameter ();
+				OdbcParameter p3Tmp = new OdbcParameter ();
+				OdbcParameter p5Tmp = new OdbcParameter ();
+
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				OdbcParameter [,] paramArray = new OdbcParameter [2, 2];
+				paramArray [0, 0] = p2Age;
+				paramArray [0, 1] = p3Tmp;
+				paramArray [1, 0] = null;
+				paramArray [1, 1] = p5Tmp;
+				try {
+					OdbcCmd.Parameters.AddRange (paramArray);
+					Assert.Fail ("Expected Exception ArgumentOutOfRangeException not thrown");
+				} catch (ArgumentNullException) {
+					Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#2 None of the elememts must be added if any one of them is null");
+				}
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		//<remarks>
+		//Tests all the three overloads of Contains
+		//</remarks>
+		[Test]
+		public void ContainsTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+				OdbcParameter p1Lname = OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				/*OdbcParameter p2Age = */OdbcCmd.Parameters.Add ("@age", OdbcType.Int, 2);
+				OdbcParameter p3Tmp = new OdbcParameter ();
+				OdbcCmd.Parameters.Insert (2, p3Tmp);
+
+				Assert.AreEqual (3, OdbcCmd.Parameters.Count, "#1 Not all parameters are added");
+				Assert.IsTrue (OdbcCmd.Parameters.Contains (p1Lname), "#2 Contains failed for OdbcParameter value");
+				Assert.IsTrue (OdbcCmd.Parameters.Contains ("@age"), "#3 Contains failed for string value");
+				Assert.IsTrue (OdbcCmd.Parameters.Contains (p3Tmp), "#4 Contains failed for object value");
+				Assert.IsFalse (OdbcCmd.Parameters.Contains (null), "#5 Contains must return false for null value");
+				Assert.IsFalse (OdbcCmd.Parameters.Contains (""), "#6 Contains must return false for empty string");
+				Assert.IsFalse (OdbcCmd.Parameters.Contains ((Object)null), "#6 Contains must return false for empty string");
+				Assert.IsFalse (OdbcCmd.Parameters.Contains ((String)null), "#6 Contains must return false for empty string");
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void ContainsNonOdbcParameterTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 The collection must contain only one parameter");
+				try{
+					Assert.IsFalse (OdbcCmd.Parameters.Contains (4), "#2 Contains must return false for non-odbcParameter arguments");
+					Assert.Fail ("Expected Exception InvalidCastException not thrown");
+				} catch (InvalidCastException) {
+					Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#3 The collection must contain only one parameter");
+				}
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void ContainsCaseSensitivityTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+
+				Assert.AreEqual (true, OdbcCmd.Parameters.Contains ("@lname"), "#2 Case sensitivity failed for Contains, should be case insensitive");
+				Assert.AreEqual (true, OdbcCmd.Parameters.Contains ("@LNAME"), "#3 Case sensitivity failed for Contains, should be case insensitive");
+				Assert.AreEqual (true, OdbcCmd.Parameters.Contains ("@LnAmE"), "#4 Case sensitivity failed for Contains, should be case insensitive");
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void ContainsNotMineTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd1 = conn.CreateCommand ();
+				OdbcCommand OdbcCmd2 = conn.CreateCommand ();
+				OdbcCmd1.CommandType = CommandType.Text;
+				OdbcCmd1.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+				OdbcCmd2.CommandType = CommandType.Text;
+				OdbcCmd2.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+
+				OdbcParameter p1 = OdbcCmd1.Parameters.Add ("@lname", OdbcType.Text, 15);
+				OdbcParameter p2 = OdbcCmd2.Parameters.Add ("@lname", OdbcType.Text, 15);
+
+				Assert.IsTrue (OdbcCmd1.Parameters.Contains (p1));
+				Assert.IsFalse (OdbcCmd1.Parameters.Contains (p2));
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void IndexOfTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+				OdbcParameter p1Lname = OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				OdbcParameter p2Age = OdbcCmd.Parameters.Add ("@age", OdbcType.Int, 2);
+				OdbcParameter p3Tmp = new OdbcParameter ();
+				Assert.AreEqual (2, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+
+				Assert.AreEqual (0, OdbcCmd.Parameters.IndexOf (p1Lname), "#1 first parameter not with index 0");
+				Assert.AreEqual (1, OdbcCmd.Parameters.IndexOf (p2Age), "#2 second parameter not with index 1");
+				Assert.AreEqual (-1, OdbcCmd.Parameters.IndexOf (p3Tmp), "#3 non-existing parameter should return -1");
+				Assert.AreEqual (-1, OdbcCmd.Parameters.IndexOf (null), "#4 null value should return -1");
+				Assert.AreEqual (-1, OdbcCmd.Parameters.IndexOf (""), "#5 Empty string parameter should return -1");
+				Assert.AreEqual (-1, OdbcCmd.Parameters.IndexOf ((string)null), "#6 Null string parameter should return -1");
+				Assert.AreEqual (-1, OdbcCmd.Parameters.IndexOf ("foo"), "#7 non-existing string parameter should return -1");
+				Assert.AreEqual (1, OdbcCmd.Parameters.IndexOf ((Object)p2Age), "#8 second parameter passed as Object did not return index 1");
+				Assert.AreEqual (-1, OdbcCmd.Parameters.IndexOf ((Object)p3Tmp), "#9 non-existing parameter passed as Object did not return index -1");
+				Assert.AreEqual (-1, OdbcCmd.Parameters.IndexOf ((Object)null), "#10 null parameter passed as Object should return index -1");
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void IndexOfCaseSensitivityTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				/*OdbcParameter p2Age = */OdbcCmd.Parameters.Add ("@AGE", OdbcType.Int, 2);
+				Assert.AreEqual (2, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+
+				Assert.AreEqual (0, OdbcCmd.Parameters.IndexOf ("@lname"), "#2 Case sensitivity failed for IndexOf, should be case insensitive");
+				Assert.AreEqual (0, OdbcCmd.Parameters.IndexOf ("@LNAME"), "#3 Case sensitivity failed for IndexOf, should be case insensitive");
+				Assert.AreEqual (1, OdbcCmd.Parameters.IndexOf ("@AGE"), "#4 Case sensitivity failed for IndexOf, should be case insensitive");
+				Assert.AreEqual (1, OdbcCmd.Parameters.IndexOf ("@age"), "#5 Case sensitivity failed for IndexOf, should be case insensitive");
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void IndexOfNonOdbcParameterTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 The collection must contain only one parameter");
+				try{
+					Assert.AreEqual (-1, OdbcCmd.Parameters.IndexOf (4), "#2 IndexOf must return -1 for non-odbcParameter arguments");
+					Assert.Fail ("Expected Exception InvalidCastException not thrown");
+				} catch (InvalidCastException) {
+					Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#3 The collection must contain only one parameter");
+				}
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void CopyToTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				/*OdbcParameter p2Age = */OdbcCmd.Parameters.Add ("@age", OdbcType.Int, 2);
+
+				Assert.AreEqual (2, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				OdbcParameter [] DestinationParamArray = new OdbcParameter [4];
+
+				OdbcCmd.Parameters.CopyTo (DestinationParamArray, 1); //starting at 1 instead of 0
+
+				Assert.AreEqual (4, DestinationParamArray.Length, "#2 The array length should not change");
+				Assert.AreEqual ("@lname", DestinationParamArray [1].ParameterName, "#3 The first parameter must be copied to array at index 1");
+				Assert.AreEqual ("@age", DestinationParamArray [2].ParameterName, "#4 The second parameter must be copied to array at index 2");
+				Assert.AreEqual (null, DestinationParamArray [0], "#5 The remaining elements must remain un-initialized");
+				Assert.AreEqual (null, DestinationParamArray [3], "#6 The remaining elements must remain un-initialized");
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void CopyToArgumentExceptionTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				/*OdbcParameter p2Age = */OdbcCmd.Parameters.Add ("@age", OdbcType.Int, 2);
+
+				Assert.AreEqual (2, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				OdbcParameter [] DestinationParamArray = new OdbcParameter [4];
+				try{
+					OdbcCmd.Parameters.CopyTo (DestinationParamArray, 3); //starting at 3, thus the second element will be at index 4
+					Assert.Fail ("Expected Exception ArgumentException not thrown");
+				} catch (ArgumentException) {
+					Assert.AreEqual (null, DestinationParamArray [0], "#2 The DestinationParamArray must remain un-initialized");
+					Assert.AreEqual (null, DestinationParamArray [1], "#3 The DestinationParamArray must remain un-initialized");
+					Assert.AreEqual (null, DestinationParamArray [2], "#4 The DestinationParamArray must remain un-initialized");
+					Assert.AreEqual (null, DestinationParamArray [3], "#5 The DestinationParamArray must remain un-initialized");
+				}
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void CopyToMultiDimensionalArrayTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				/*OdbcParameter p2Age = */OdbcCmd.Parameters.Add ("@age", OdbcType.Int, 2);
+
+				Assert.AreEqual (2, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				OdbcParameter [,] DestinationParamArray = new OdbcParameter [2, 4];
+
+				try{
+					OdbcCmd.Parameters.CopyTo (DestinationParamArray, 1); //DestinationParamArray is multi Dimensional
+					Assert.Fail ("Expected Exception ArgumentException not thrown");
+				} catch (ArgumentException) {
+					Assert.AreEqual (null, DestinationParamArray [0, 0], "#2 The DestinationParamArray must remain un-initialized");
+					Assert.AreEqual (null, DestinationParamArray [0, 1], "#3 The DestinationParamArray must remain un-initialized");
+					Assert.AreEqual (null, DestinationParamArray [1, 2], "#4 The DestinationParamArray must remain un-initialized");
+					Assert.AreEqual (null, DestinationParamArray [1, 3], "#5 The DestinationParamArray must remain un-initialized");
+				}
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void CopyToLowerBoundCheckTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				/*OdbcParameter p2Age = */OdbcCmd.Parameters.Add ("@age", OdbcType.Int, 2);
+
+				Assert.AreEqual (2, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				OdbcParameter [] DestinationParamArray = new OdbcParameter [4];
+				try {
+					OdbcCmd.Parameters.CopyTo (DestinationParamArray, -1); //index must be >= 0
+					Assert.Fail ("Expected Exception ArgumentOutOfRangeException not thrown");
+				} catch (ArgumentOutOfRangeException) {
+					Assert.AreEqual (null, DestinationParamArray [0], "#2 The DestinationParamArray must remain un-initialized");
+					Assert.AreEqual (null, DestinationParamArray [1], "#3 The DestinationParamArray must remain un-initialized");
+					Assert.AreEqual (null, DestinationParamArray [2], "#4 The DestinationParamArray must remain un-initialized");
+					Assert.AreEqual (null, DestinationParamArray [3], "#5 The DestinationParamArray must remain un-initialized");
+				}
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void DuplicateParameterNameTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+
+				OdbcParameter p1Lname = OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				OdbcParameter p2Lname = OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				Assert.AreEqual (2, OdbcCmd.Parameters.Count, "#2 Collection should contain 2 parameters");
+				
+				//Checking IndexOf (string) overload
+				Assert.AreEqual (0, OdbcCmd.Parameters.IndexOf ("@lname"));
+				
+				//Checking IndexOf (OdbcParameter) overload
+				Assert.AreEqual (0, OdbcCmd.Parameters.IndexOf (p1Lname));
+				Assert.AreEqual (1, OdbcCmd.Parameters.IndexOf (p2Lname));
+				
+				//Checking IndexOf (object) overload
+				Assert.AreEqual (0, OdbcCmd.Parameters.IndexOf ((object) p1Lname));
+				Assert.AreEqual (1, OdbcCmd.Parameters.IndexOf ((object) p2Lname));
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void RemoveTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+
+				OdbcParameter p1Lname = OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				OdbcCmd.Parameters.Remove (p1Lname);
+				Assert.AreEqual (0, OdbcCmd.Parameters.Count, "#2 Collection should not contain any parameters");
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void RemoveNullTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				try {
+					OdbcCmd.Parameters.Remove (null);
+					Assert.Fail ("Expected exception ArgumentNullException was not thrown");
+				} catch (ArgumentNullException) {
+					Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#2 The collection must contain only one parameter");
+				}
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+		
+		[Test]
+		public void RemoveEmptyTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				try {
+					OdbcCmd.Parameters.Remove (string.Empty);
+					Assert.Fail ("Expected exception InvalidCastException was not thrown");
+				} catch (InvalidCastException) {
+					Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#2 The collection must contain only one parameter");
+				}
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void RemoveNonOdbcParameterTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				try {
+					OdbcCmd.Parameters.Remove (4);
+					Assert.Fail ("Expected exception InvalidCastException was not thrown");
+				} catch (InvalidCastException) {
+					Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#2 The collection must contain only one parameter");
+				}
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void RemoveNonExistingParameterTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+
+				OdbcParameter p1Lname = OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				/*OdbcParameter p2Age = new OdbcParameter ();*/
+				
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				OdbcCmd.Parameters.Remove (p1Lname);
+				Assert.AreEqual (0, OdbcCmd.Parameters.Count, "#2 Collection should not contain any parameters");
+				try {
+					OdbcCmd.Parameters.Remove (p1Lname);
+					Assert.Fail ("Expected exception ArgumentException not thrown");
+				} catch (ArgumentException) {
+					Assert.AreEqual (0, OdbcCmd.Parameters.Count, "#3 The collection should not contain any parameters");
+				}
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void RemoveParameterContainedInAnotherCollTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+
+				OdbcCommand OdbcCmd2 = conn.CreateCommand ();
+				OdbcCmd2.CommandType = CommandType.Text;
+				OdbcCmd2.CommandText = "SELECT lname FROM employee WHERE fname=? AND age=?";
+
+				OdbcParameter p1 = OdbcCmd.Parameters.Add ("@p1", OdbcType.Text, 15);
+				/*OdbcParameter p2 = */OdbcCmd.Parameters.Add ("@p2", OdbcType.Text, 15);
+				
+				/*OdbcParameter p3 = */OdbcCmd2.Parameters.Add ("@p3", OdbcType.Text, 15);
+				/*OdbcParameter p4 = */OdbcCmd2.Parameters.Add ("@p4", OdbcType.Text, 15);
+
+				Assert.AreEqual (2, OdbcCmd.Parameters.Count, "#5 The parameter collection of OdbcCmd should contain 2 parameters");
+				Assert.AreEqual (2, OdbcCmd2.Parameters.Count, "#6 The parameter collection of OdbcCmd2 should contain 2 parameters");
+				try {
+					OdbcCmd2.Parameters.Remove (p1);
+					Assert.Fail ("Expected Exception ArgumentException not thrown");
+				} catch (ArgumentException) {
+					Assert.AreEqual (2, OdbcCmd.Parameters.Count, "#5 The parameter collection of OdbcCmd should contain 2 parameters");
+					Assert.AreEqual (2, OdbcCmd2.Parameters.Count, "#6 The parameter collection of OdbcCmd2 should contain 2 parameters");
+				}
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+		
+		[Test]
+		public void RemoveAtTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+
+				OdbcParameter p1Lname = OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				OdbcParameter p2Age = OdbcCmd.Parameters.Add ("@age", OdbcType.Int, 2);
+				OdbcParameter p3Tmp = OdbcCmd.Parameters.Add ("@p3Tmp", OdbcType.Text, 15);
+				OdbcParameter p4Tmp = OdbcCmd.Parameters.Add ("@p4Tmp", OdbcType.Text, 15);
+
+				Assert.AreEqual (4, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				
+				Assert.AreEqual (true, OdbcCmd.Parameters.Contains(p1Lname), "#2 the collection does not contain p1Lname");
+				Assert.AreEqual (0, OdbcCmd.Parameters.IndexOf(p1Lname), "#3 p1Lname is not at index 0");
+
+				//remove the first parameter
+				OdbcCmd.Parameters.RemoveAt (0);
+				Assert.AreEqual (3, OdbcCmd.Parameters.Count, "#4 Collection should contain only 3 parameters");
+				Assert.AreEqual (false, OdbcCmd.Parameters.Contains(p1Lname), "#5 the collection should not contain p1Lname");
+				Assert.AreEqual (-1, OdbcCmd.Parameters.IndexOf(p1Lname), "#6 the collection should not contain p1Lname");
+				Assert.AreEqual (0, OdbcCmd.Parameters.IndexOf(p2Age), "#7 p2Age should now be at index 0");
+				Assert.AreEqual (1, OdbcCmd.Parameters.IndexOf(p3Tmp), "#8 p3Tmp should now be at index 1");
+				Assert.AreEqual (2, OdbcCmd.Parameters.IndexOf(p4Tmp), "#9 p4Tmp should now be at index 2");
+
+				//remove the last parameter
+				OdbcCmd.Parameters.RemoveAt (OdbcCmd.Parameters.Count-1);
+				Assert.AreEqual (2, OdbcCmd.Parameters.Count, "#10 Collection should contain only 2 parameters");
+				Assert.AreEqual (false, OdbcCmd.Parameters.Contains(p4Tmp), "#11 the collection should not contain p4Tmp");
+				Assert.AreEqual (-1, OdbcCmd.Parameters.IndexOf(p4Tmp), "#12 the collection should not contain p4Tmp");
+				Assert.AreEqual (0, OdbcCmd.Parameters.IndexOf(p2Age), "#13 p2Age should be at index 0");
+				Assert.AreEqual (1, OdbcCmd.Parameters.IndexOf(p3Tmp), "#14 p3Tmp should be at index 1");				
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void RemoveAtOutOfRangeIndexTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+
+				OdbcParameter p1Lname = OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				try {
+					OdbcCmd.Parameters.RemoveAt (9);
+					Assert.Fail ("Expected exception IndexOutOfRangeException not thrown");
+				} catch (IndexOutOfRangeException) {
+					Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#2 The collection must contain 1 parameter");
+					Assert.AreEqual (true, OdbcCmd.Parameters.Contains(p1Lname), "#3 the collection does not contain p1Lname");
+					Assert.AreEqual (0, OdbcCmd.Parameters.IndexOf(p1Lname), "#4 p1Lname is not at index 0");
+				}
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+		
+		[Test]
+		public void RemoveAtNegativeIndexTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+
+				OdbcParameter p1Lname = OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				try {
+					OdbcCmd.Parameters.RemoveAt (-1);
+					Assert.Fail ("Expected exception IndexOutOfRangeException not thrown");
+				} catch (IndexOutOfRangeException) {
+					Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#2 The collection must contain 1 parameter");
+					Assert.AreEqual (true, OdbcCmd.Parameters.Contains(p1Lname), "#3 the collection does not contain p1Lname");
+					Assert.AreEqual (0, OdbcCmd.Parameters.IndexOf(p1Lname), "#4 p1Lname is not at index 0");
+				}
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+		
+		[Test]
+		public void RemoveAtBoundaryTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+
+				OdbcParameter p1Lname = OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+				try {
+					OdbcCmd.Parameters.RemoveAt (OdbcCmd.Parameters.Count);
+					Assert.Fail ("Expected exception IndexOutOfRangeException not thrown");
+				} catch (IndexOutOfRangeException) {
+					Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#2 The collection must contain 1 parameter");
+					Assert.AreEqual (true, OdbcCmd.Parameters.Contains(p1Lname), "#3 the collection does not contain p1Lname");
+					Assert.AreEqual (0, OdbcCmd.Parameters.IndexOf(p1Lname), "#4 p1Lname is not at index 0");
+				}
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void AddWithValueTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+				
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				OdbcParameter rt = null; //to check return type
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");				
+				
+				rt = OdbcCmd.Parameters.AddWithValue ("@P2", "Param2");
+				Assert.AreEqual (typeof(OdbcParameter), rt.GetType(), "#1a AddWithValue didnt retuen type OdbcParameter");
+				Assert.AreEqual (2, OdbcCmd.Parameters.Count, "#2 AddWithValue failed for valid parameter name and value");
+				Assert.AreEqual (true, OdbcCmd.Parameters.Contains ("@P2"), "#3 collection does not contain @P2");
+				Assert.AreEqual (1, OdbcCmd.Parameters.IndexOf ("@P2"), "#4 Index of added parameter must be 1");
+				Assert.AreEqual ("Param2", OdbcCmd.Parameters["@P2"].Value, "#5 Value of added parameter must be Param2");
+				Assert.AreEqual (OdbcType.NVarChar,OdbcCmd.Parameters[1].OdbcType, "#6 Parameters with null value must be of type NVarChar");
+
+				OdbcCmd.Parameters.AddWithValue ("@P2", "Param2ReAdded"); //adding again
+				Assert.AreEqual (3, OdbcCmd.Parameters.Count, "#7 AddWithValue must append at the end of the collection even for same parameter names");
+				Assert.AreEqual (true, OdbcCmd.Parameters.Contains ("@P2"), "#8 collection does not contain @P2");
+				Assert.AreEqual (1, OdbcCmd.Parameters.IndexOf ("@P2"), "#9 Index of @P2 must be 1");
+				Assert.AreEqual ("Param2", OdbcCmd.Parameters["@P2"].Value, "#10 Value of added parameter must be Param2");
+				Assert.AreEqual (OdbcType.NVarChar,OdbcCmd.Parameters["@P2"].OdbcType, "#11 Parameters with null value must be of type NVarChar");
+
+				//Two different parameters with same name but at different positions ie 1 and 2
+				Assert.AreEqual ("@P2",OdbcCmd.Parameters[1].ParameterName, "#12 The parameter at index 1 must be @P2");
+				Assert.AreEqual ("@P2",OdbcCmd.Parameters[2].ParameterName, "#13 The parameter at index 2 must be @P2");
+
+				//Confirming the parameters by checking their values
+				Assert.AreEqual ("Param2",OdbcCmd.Parameters[1].Value, "#14The parameter at index 1 must have value Param2");
+				Assert.AreEqual ("Param2ReAdded",OdbcCmd.Parameters[2].Value, "#15The parameter at index 2 must have value Param2ReAdded");
+
+				//Testing for null values
+				OdbcCmd.Parameters.AddWithValue (null, null);
+				Assert.AreEqual (4, OdbcCmd.Parameters.Count, "#16 AddWithValue must accept null parameter names and null values");
+				Assert.AreEqual (false, OdbcCmd.Parameters.Contains (null), "#17 AddWithValue must return false for Contains (null)");
+				Assert.AreEqual (-1, OdbcCmd.Parameters.IndexOf (null), "#18 AddWithValue must return -1 for IndexOf (null)");
+				Assert.AreEqual (null, OdbcCmd.Parameters["Parameter1"].Value, "#19 Value of added parameter must be null");
+				Assert.AreEqual ("Parameter1",OdbcCmd.Parameters[3].ParameterName, "#20 The parameter at index 3 must be Parameter1");
+				Assert.AreEqual (OdbcType.NVarChar,OdbcCmd.Parameters[3].OdbcType, "#21 Parameters with null value must be of type NVarChar");
+
+				OdbcCmd.Parameters.AddWithValue (null, null); //adding another null parameter
+				Assert.AreEqual (5, OdbcCmd.Parameters.Count, "#22 AddWithValue must accept null parameter names and null values");
+				Assert.AreEqual (false, OdbcCmd.Parameters.Contains (null), "#23 AddWithValue must return false for Contains (null)");
+				Assert.AreEqual (-1, OdbcCmd.Parameters.IndexOf (null), "#24 AddWithValue must return -1 for IndexOf (null)");
+				Assert.AreEqual (null, OdbcCmd.Parameters["Parameter2"].Value, "#25 Value of added parameter must be null");
+				Assert.AreEqual ("Parameter2",OdbcCmd.Parameters[4].ParameterName, "#26 The parameter at index 1 must be Parameter2");
+				Assert.AreEqual (OdbcType.NVarChar,OdbcCmd.Parameters[4].OdbcType, "#27 Parameters with null value must be of type NVarChar");
+
+				//Testing for empty strings
+				OdbcCmd.Parameters.AddWithValue ("", ""); //adding empty parameter
+				Assert.AreEqual (6, OdbcCmd.Parameters.Count, "#28 AddWithValue must accept empty names and empty values");
+				Assert.AreEqual (false, OdbcCmd.Parameters.Contains (""), "#29 AddWithValue must return false for Contains ('')");
+				Assert.AreEqual (-1, OdbcCmd.Parameters.IndexOf (""), "#30 AddWithValue must return -1 for IndexOf ('')");
+				Assert.AreEqual ("Parameter3",OdbcCmd.Parameters[5].ParameterName, "#31 The parameter at index 5 must be Parameter3");      
+				Assert.AreEqual ("",OdbcCmd.Parameters[5].Value, "#32 The parameter at index 5 must have value as empty string");      
+				Assert.AreEqual (OdbcType.NVarChar,OdbcCmd.Parameters[5].OdbcType, "#33 Parameters with null value must be of type NVarChar");
+
+				OdbcCmd.Parameters.AddWithValue ("", ""); //adding another empty parameter
+				Assert.AreEqual (7, OdbcCmd.Parameters.Count, "#34 AddWithValue must accept empty names and empty values");
+				Assert.AreEqual (false, OdbcCmd.Parameters.Contains (""), "#35 AddWithValue must return false for Contains ('')");
+				Assert.AreEqual (-1, OdbcCmd.Parameters.IndexOf (""), "#36 AddWithValue must return -1 for IndexOf ('')");
+				Assert.AreEqual ("Parameter4",OdbcCmd.Parameters[6].ParameterName, "#37 The parameter at index 6 must have name as Parameter4");
+				Assert.AreEqual ("",OdbcCmd.Parameters[6].Value, "#38 The parameter at index 6 must have value as empty string");                                                    
+				Assert.AreEqual (OdbcType.NVarChar,OdbcCmd.Parameters[6].OdbcType, "#39 Parameters with null value must be of type NVarChar");
+
+				OdbcCmd.Parameters.AddWithValue ("foo", null);
+				Assert.AreEqual (8, OdbcCmd.Parameters.Count, "#40 AddWithValue must accept string names and null values");
+				Assert.AreEqual (true, OdbcCmd.Parameters.Contains ("foo"), "#41 AddWithValue must return true for Contains ('foo')");
+				Assert.AreEqual (7, OdbcCmd.Parameters.IndexOf ("foo"), "#42 AddWithValue must return 7 for IndexOf ('foo')");
+				Assert.AreEqual ("foo",OdbcCmd.Parameters[7].ParameterName, "#43 The parameter at index 7 must have name foo");
+				Assert.AreEqual (null,OdbcCmd.Parameters[7].Value, "#44 The parameter at index 7 must have value as null");                                                    
+				Assert.AreEqual (OdbcType.NVarChar,OdbcCmd.Parameters[7].OdbcType, "#45 Parameters with null value must be of type NVarChar");
+
+				OdbcCmd.Parameters.AddWithValue (null, 2);
+				Assert.AreEqual (9, OdbcCmd.Parameters.Count, "#46 AddWithValue must accept empty names and empty values");
+				Assert.AreEqual (false, OdbcCmd.Parameters.Contains (null), "#47 AddWithValue must return false for Contains (null)");
+				Assert.AreEqual (-1, OdbcCmd.Parameters.IndexOf (null), "#48 AddWithValue must return -1 for IndexOf ('')");
+				Assert.AreEqual ("Parameter5",OdbcCmd.Parameters[8].ParameterName, "#49 The parameter at index 8 must have name as Parameter5");
+				Assert.AreEqual (2,OdbcCmd.Parameters[8].Value, "#50 The parameter at index 8 must have value as 2");                                                    
+				Assert.AreEqual (OdbcType.NVarChar,OdbcCmd.Parameters[8].OdbcType, "#51 Parameter must be of type NVarChar");
+			} finally {
+				ConnectionManager.Singleton.CloseConnection ();
+			}
+		}
+
+		[Test]
+		public void DefaultNamesAndValuesTest ()
+		{
+			OdbcConnection conn = (OdbcConnection) ConnectionManager.Singleton.Connection;
+			ConnectionManager.Singleton.OpenConnection ();
+
+			try {
+				OdbcCommand OdbcCmd = conn.CreateCommand ();
+				OdbcCmd.CommandType = CommandType.Text;
+				OdbcCmd.CommandText = "SELECT fname FROM employee WHERE lname=? AND age=?";
+
+				/*OdbcParameter p1Lname = */OdbcCmd.Parameters.Add ("@lname", OdbcType.Text, 15);
+				Assert.AreEqual (1, OdbcCmd.Parameters.Count, "#1 Initialization error, the collection does not contain desired no. of parameters");
+
+				OdbcParameter p2Age = new OdbcParameter ();
+				OdbcParameter p3Tmp = new OdbcParameter ();
+
+				OdbcCmd.Parameters.Add (p2Age);
+				Assert.AreEqual (2, OdbcCmd.Parameters.Count, "#2 The collection must contain 2 parameters");
+				Assert.AreEqual (true, OdbcCmd.Parameters.Contains (p2Age), "#3 Collection does not contain p2Age");
+				Assert.AreEqual (1, OdbcCmd.Parameters.IndexOf (p2Age), "#4 Index of p2Age must be 1");
+				Assert.AreEqual (null, OdbcCmd.Parameters[1].Value, "#5 Value of added parameter must be null");
+				Assert.AreEqual ("Parameter1",OdbcCmd.Parameters[1].ParameterName, "#6 The parameter must have a default name");
+				Assert.AreEqual (OdbcType.NVarChar,OdbcCmd.Parameters[1].OdbcType, "#7 Parameters with null value must be of type NVarChar");
+
+				OdbcCmd.Parameters.Insert (2,p3Tmp);
+				Assert.AreEqual (3, OdbcCmd.Parameters.Count, "#8 The collection must contain 3 parameters");
+				Assert.AreEqual (true, OdbcCmd.Parameters.Contains (p3Tmp), "#9 Collection does not contain p3Tmp");
+				Assert.AreEqual (2, OdbcCmd.Parameters.IndexOf (p3Tmp), "#10 Index of p3Tmp must be 2");
+				Assert.AreEqual (null, OdbcCmd.Parameters[2].Value, "#11 Value of added parameter must be null");
+				Assert.AreEqual ("Parameter2",OdbcCmd.Parameters[2].ParameterName, "#12 The parameter must have a default name");
+				Assert.AreEqual (OdbcType.NVarChar,OdbcCmd.Parameters[2].OdbcType, "#13 Parameters with null value must be of type NVarChar");
 			} finally {
 				ConnectionManager.Singleton.CloseConnection ();
 			}
-                }
-        }
+		}
+	}
 }