public void ReadSByteTest()
{
// GIVEN a buffer of serialized data
mockMessageBuffer.Setup(m => m.Buffer).Returns(new byte[] { 0xD3 });
mockMessageBuffer.Setup(m => m.Offset).Returns(0);
mockMessageBuffer.Setup(m => m.Count).Returns(1);
// WHEN I read an sbyte from the reader
sbyte result = reader.ReadSByte();
// THEN the value is as expected
Assert.AreEqual((sbyte)-45, result);
}