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diff --git a/qpid/dotnet/Qpid.Buffer.Tests/SimpleByteBufferTests.cs b/qpid/dotnet/Qpid.Buffer.Tests/SimpleByteBufferTests.cs
new file mode 100644
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+++ b/qpid/dotnet/Qpid.Buffer.Tests/SimpleByteBufferTests.cs
@@ -0,0 +1,333 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+using NUnit.Framework;
+using Apache.Qpid.Buffer;
+
+namespace Apache.Qpid.Buffer.Tests
+{
+   /// <summary>
+   /// Tests for the SimpleByteBuffer class
+   /// </summary>
+   [TestFixture]
+   public class SimpleByteBufferTests
+   {
+      [Test]
+      public void CanCreateNewBuffer()
+      {
+         const int size = 10;
+         ByteBuffer buffer = ByteBuffer.Allocate(size);
+         Assert.AreEqual(size, buffer.Capacity);
+         Assert.AreEqual(0, buffer.Position);
+         Assert.AreEqual(size, buffer.Remaining);
+         Assert.AreEqual(true, buffer.HasRemaining);
+      }
+
+      [Test]
+      public void CanWrapArray()
+      {
+         byte[] array = new byte[10];
+         for ( int i=0; i < array.Length; i++ )
+         {
+            array[i] = (byte) i;
+         }
+         ByteBuffer buffer = ByteBuffer.Wrap(array);
+         // the buffer should be the same size, 
+         // and positioned at the end
+         Assert.AreEqual(array.Length, buffer.Capacity);
+         Assert.AreEqual(array.Length, buffer.Position);
+         Assert.AreEqual(array.Length, buffer.Limit);
+      }
+
+      #region Base Read/Write tests
+      //
+      // Base Read/Write tests
+      //
+      [Test]
+      public void CanReadWriteBytes()
+      {
+         ByteBuffer buffer = ByteBuffer.Allocate(10);
+         buffer.Put((byte)0x01).Put((byte)0x02).Put((byte)0x03);
+         buffer.Rewind();
+         Assert.AreEqual(0x01, buffer.GetByte());
+         Assert.AreEqual(0x02, buffer.GetByte());
+         Assert.AreEqual(0x03, buffer.GetByte());
+      }
+
+      [Test]
+      [ExpectedException(typeof(BufferUnderflowException))]
+      public void ThrowOnReadByteWithNoSpace()
+      {
+         ByteBuffer buffer = ByteBuffer.Allocate(1);
+         buffer.Put((byte)0x01);
+         buffer.GetByte();
+      }
+
+      [Test]
+      [ExpectedException(typeof(BufferOverflowException))]
+      public void ThrowOnWriteByteWithNoSpace()
+      {
+         ByteBuffer buffer = ByteBuffer.Allocate(1);
+         buffer.Put((byte)0x01).Put((byte)0x02);
+      }
+
+      #endregion Base Read/Write tests
+
+      #region Other Buffer Operations
+      //
+      // Other Buffer Operations
+      //
+      
+      [Test]
+      public void CanFlipBuffer()
+      {
+         ByteBuffer buffer = ByteBuffer.Allocate(10);
+         buffer.Put((byte)0x01).Put((byte)0x02).Put((byte)0x03);
+         buffer.Flip();
+         Assert.AreEqual(10, buffer.Capacity);
+         Assert.AreEqual(3, buffer.Limit);
+         Assert.AreEqual(0, buffer.Position);
+         Assert.AreEqual(3, buffer.Remaining);
+      }
+
+      [Test]
+      public void CanCompactBuffer()
+      {
+         ByteBuffer buffer = ByteBuffer.Allocate(10);
+         buffer.Put((byte)0x01).Put((byte)0x02).Put((byte)0x03);
+         buffer.Flip();
+         buffer.Position = 1;
+         buffer.Compact();
+         Assert.AreEqual(10, buffer.Capacity);
+         Assert.AreEqual(10, buffer.Limit);
+         Assert.AreEqual(2, buffer.Position);
+         Assert.AreEqual(8, buffer.Remaining);
+         buffer.Rewind();
+         Assert.AreEqual((byte)0x02, buffer.GetByte());
+         Assert.AreEqual((byte)0x03, buffer.GetByte());
+      }
+
+      [Test]
+      public void CanClearBuffer()
+      {
+         ByteBuffer buffer = ByteBuffer.Allocate(10);
+         buffer.Put((byte)0x01).Put((byte)0x02).Put((byte)0x03);
+         buffer.Flip();
+         buffer.Position = 2;
+         buffer.Clear();
+         Assert.AreEqual(10, buffer.Capacity);
+         Assert.AreEqual(10, buffer.Limit);
+         Assert.AreEqual(0, buffer.Position);
+         Assert.AreEqual(10, buffer.Remaining);
+      }
+
+      [Test]
+      public void CanExpandBuffer()
+      {
+         ByteBuffer buffer = ByteBuffer.Allocate(10);
+         buffer.Put((byte)0x01).Put((byte)0x02).Put((byte)0x03);
+         buffer.Flip();
+         buffer.Position = 2;
+         int pos = buffer.Position;
+         buffer.Expand(20);
+
+         Assert.AreEqual(pos, buffer.Position);
+         Assert.IsTrue(buffer.Remaining >= 20);
+         buffer.Rewind();
+         Assert.AreEqual(0x01, buffer.GetByte());
+      }
+
+      [Test]
+      public void CanAutoExpand()
+      {
+         ByteBuffer buffer = ByteBuffer.Allocate(2);
+         buffer.IsAutoExpand = true;
+         // should cause autoexpand
+         buffer.Put((byte)0x01).Put((byte)0x02).Put((byte)0x03);
+         Assert.IsTrue(buffer.Capacity > 2);
+      }
+
+      [Test]
+      public void CanGetArray()
+      {
+         ByteBuffer buffer = ByteBuffer.Allocate(10);
+         buffer.Put((byte)0x01).Put((byte)0x02).Put((byte)0x03);
+         buffer.Flip();
+
+         byte[] array = buffer.Array;
+         for ( int i=0; i < buffer.Limit; i++ )
+         {
+            Assert.AreEqual(buffer.GetByte(), array[i]);
+         }
+      }
+
+      [Test]
+      public void CanSkip()
+      {
+         ByteBuffer buffer = ByteBuffer.Allocate(10);
+         buffer.Skip(4);
+         Assert.AreEqual(4, buffer.Position);
+      }
+
+      #endregion // Base Read/Write tests
+
+      #region Typed Accessors
+      //
+      // Typed Accessors
+      //
+      [Test]
+      public void CanReadWriteSByte()
+      {
+         ByteBuffer buffer = ByteBuffer.Allocate(10);
+         sbyte value = -12;
+         buffer.Put(value);
+         buffer.Flip();
+         Assert.AreEqual(value, buffer.GetSByte());
+      }
+      [Test]
+      public void CanReadWriteUInt16()
+      {
+         ByteBuffer buffer = ByteBuffer.Allocate(10);
+         ushort value = 41233;
+         buffer.Put(value);
+         buffer.Flip();
+         Assert.AreEqual(value, buffer.GetUInt16());
+      }
+      [Test]
+      public void CanReadWriteInt16()
+      {
+         ByteBuffer buffer = ByteBuffer.Allocate(10);
+         short value = -21233;
+         buffer.Put(value);
+         buffer.Flip();
+         Assert.AreEqual(value, buffer.GetInt16());
+      }
+      [Test]
+      public void CanReadWriteUInt32()
+      {
+         ByteBuffer buffer = ByteBuffer.Allocate(10);
+         uint value = 41233211;
+         buffer.Put(value);
+         buffer.Flip();
+         Assert.AreEqual(value, buffer.GetUInt32());
+      }
+      [Test]
+      public void CanReadWriteInt32()
+      {
+         ByteBuffer buffer = ByteBuffer.Allocate(10);
+         int value = -22221233;
+         buffer.Put(value);
+         buffer.Flip();
+         Assert.AreEqual(value, buffer.GetInt32());
+      }
+      [Test]
+      public void CanReadWriteUInt64()
+      {
+         ByteBuffer buffer = ByteBuffer.Allocate(10);
+         ulong value = 41233218871;
+         buffer.Put(value);
+         buffer.Flip();
+         Assert.AreEqual(value, buffer.GetUInt64());
+      }
+      [Test]
+      public void CanReadWriteInt64()
+      {
+         ByteBuffer buffer = ByteBuffer.Allocate(10);
+         long value = -9887335411;
+         buffer.Put(value);
+         buffer.Flip();
+         Assert.AreEqual(value, buffer.GetInt64());
+      }
+      [Test]
+      public void CanReadWriteFloat()
+      {
+         ByteBuffer buffer = ByteBuffer.Allocate(10);
+         float value = -1.2331f;
+         buffer.Put(value);
+         buffer.Flip();
+         Assert.AreEqual(value, buffer.GetFloat());
+      }
+
+      [Test]
+      public void CanReadWriteDouble()
+      {
+         ByteBuffer buffer = ByteBuffer.Allocate(10);
+         double value = -1.2331E12;
+         buffer.Put(value);
+         buffer.Flip();
+         Assert.AreEqual(value, buffer.GetDouble());
+      }
+
+      [Test]
+      public void CanReadWriteChar()
+      {
+         ByteBuffer buffer = ByteBuffer.Allocate(10);
+         char value = 'H';
+         buffer.Put(value);
+         buffer.Flip();
+         Assert.AreEqual(value, buffer.GetChar());
+      }
+
+      [Test]
+      public void CanReadWriteByteArray()
+      {
+         ByteBuffer buffer = ByteBuffer.Allocate(10);
+         buffer.Put(new byte[] { 0x01, 0x02, 0x03});
+         buffer.Flip();
+         byte[] data = new byte[3];
+         buffer.GetBytes(data);
+         Assert.AreEqual(0x01, data[0]);
+         Assert.AreEqual(0x02, data[1]);
+         Assert.AreEqual(0x03, data[2]);
+      }
+
+      [Test]
+      public void CanReadWriteByteArrayWithOffset()
+      {
+         ByteBuffer buffer = ByteBuffer.Allocate(10);
+         buffer.Put(new byte[] { 0x01, 0x02, 0x03, 0x04, 0x05 }, 1, 4);
+         buffer.Flip();
+         byte[] data = new byte[3];
+         buffer.GetBytes(data, 2, 1);
+         Assert.AreEqual(0x00, data[0]);
+         Assert.AreEqual(0x00, data[1]);
+         Assert.AreEqual(0x02, data[2]);
+      }
+
+      [Test]
+      public void CanWriteByteBuffer()
+      {
+         ByteBuffer buffer1 = ByteBuffer.Allocate(10);
+         buffer1.Put((byte)0x01).Put((byte)0x02).Put((byte)0x03);
+         buffer1.Flip();
+
+         ByteBuffer buffer2 = ByteBuffer.Allocate(10);
+         buffer2.Put(buffer1);
+         buffer2.Flip();
+         Assert.AreEqual(buffer1.Limit, buffer2.Limit);
+         Assert.AreEqual(0x01, buffer2.GetByte());
+      }
+      #endregion // Typed Accessors
+
+   } // class SimpleByteBufferTests
+}
+
+