--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/UnitTests/CS/Data/CompositeKeyTest.cs	Thu Mar 27 21:46:09 2014 +0400
@@ -0,0 +1,38 @@
+using System;
+using System.Data;
+
+using NUnit.Framework;
+
+using BLToolkit.Data;
+using BLToolkit.Mapping;
+
+namespace Data
+{
+	[TestFixture]
+	public class CompositeKeyTest
+	{
+		public class CompositeKey
+		{
+			public int Id;
+			public int Revision;
+		}
+
+		[MapField("Id",       "Key.Id")]
+		[MapField("Revision", "Key.Revision")]
+		public class Entity
+		{
+			public CompositeKey Key = new CompositeKey();
+			public string       Name;
+		}
+
+		[Test]
+		public void CompositeObjectTest()
+		{
+			using (DbManager db = new DbManager())
+			{
+				IDbDataParameter[] prms = db.CreateParameters(new Entity());
+				Assert.AreEqual(3, prms.Length);
+			}
+		}
+	}
+}