String newFileName = "newFile.txt";

        // When
        smbComRename = new SmbComRename(config, oldFileName, newFileName);

        // Then
        assertEquals(ServerMessageBlock.SMB_COM_RENAME, smbComRename.getCommand());

        // Use reflection to verify private fields
        Field oldFileNameField = SmbComRename.class.getDeclaredField("oldFileName");
        oldFileNameField.setAccessible(true);

            when(mockTreeHandle.send(any(SmbComRename.class), any(SmbComBlankResponse.class))).thenReturn(mock(SmbComBlankResponse.class));

            // Act
            smbFile.renameTo(dest);

            // Assert
            verify(mockTreeHandle).send(any(SmbComRename.class), any(SmbComBlankResponse.class));
        }

        @Test