public void GetBytes()
        {
            var statusActionInvocations = new List<SftpStatusResponse>();
            var nameActionInvocations = new List<SftpNameResponse>();
            Action<SftpStatusResponse> statusAction = statusActionInvocations.Add;
            Action<SftpNameResponse> nameAction = nameActionInvocations.Add;
            var request = new SftpRealPathRequest(
                _protocolVersion,
                _requestId,
                _path,
                _encoding,
                nameAction,
                statusAction);

            var bytes = request.GetBytes();

            var expectedBytesLength = 0;
#if TUNING
            expectedBytesLength += 4; // Length
#endif
            expectedBytesLength += 1; // Type
            expectedBytesLength += 4; // RequestId
            expectedBytesLength += 4; // Path length
            expectedBytesLength += _pathBytes.Length; // Path

            Assert.AreEqual(expectedBytesLength, bytes.Length);

            var sshDataStream = new SshDataStream(bytes);

#if TUNING
            Assert.AreEqual((uint)bytes.Length - 4, sshDataStream.ReadUInt32());
#endif
            Assert.AreEqual((byte)SftpMessageTypes.RealPath, sshDataStream.ReadByte());
            Assert.AreEqual(_requestId, sshDataStream.ReadUInt32());

            Assert.AreEqual((uint) _pathBytes.Length, sshDataStream.ReadUInt32());
            var actualPath = new byte[_pathBytes.Length];
            sshDataStream.Read(actualPath, 0, actualPath.Length);
            Assert.IsTrue(_pathBytes.SequenceEqual(actualPath));

            Assert.IsTrue(sshDataStream.IsEndOfData);
        }