* @param config the client configuration
     * @param fileId the file identifier to flush
     */
    public Smb2FlushRequest(final Configuration config, final byte[] fileId) {
        super(config, SMB2_FLUSH);
        this.fileId = fileId;
    }

    @Override
    protected Smb2FlushResponse createResponse(final CIFSContext tc, final ServerMessageBlock2Request<Smb2FlushResponse> req) {

    void testConstructor() throws Exception {
        // Verify command is set correctly (SMB2_FLUSH = 0x0007)
        Field commandField = ServerMessageBlock2.class.getDeclaredField("command");
        commandField.setAccessible(true);
        int command = (int) commandField.get(request);
        assertEquals(0x0007, command); // SMB2_FLUSH value

        // Verify file ID is set

        case SMB2_TREE_CONNECT -> "SMB2_TREE_CONNECT";
        case SMB2_TREE_DISCONNECT -> "SMB2_TREE_DISCONNECT";
        case SMB2_CREATE -> "SMB2_CREATE";
        case SMB2_CLOSE -> "SMB2_CLOSE";
        case SMB2_FLUSH -> "SMB2_FLUSH";
        case SMB2_READ -> "SMB2_READ";
        case SMB2_WRITE -> "SMB2_WRITE";
        case SMB2_LOCK -> "SMB2_LOCK";
        case SMB2_IOCTL -> "SMB2_IOCTL";
        case SMB2_CANCEL -> "SMB2_CANCEL";

            assertEquals(0x05, ServerMessageBlock2.SMB2_CREATE);
            assertEquals(0x06, ServerMessageBlock2.SMB2_CLOSE);
            assertEquals(0x07, ServerMessageBlock2.SMB2_FLUSH);
            assertEquals(0x08, ServerMessageBlock2.SMB2_READ);
            assertEquals(0x09, ServerMessageBlock2.SMB2_WRITE);
            assertEquals(0x0A, ServerMessageBlock2.SMB2_LOCK);