assertEquals(fileIndex, readIndex);
    }

    @Test
    @DisplayName("Test setFileName method with null")
    void testSetFileNameNull() {
        request = new Smb2QueryDirectoryRequest(mockConfig);

        request.setFileName(null);

        // Verify size calculation doesn't include filename
        int expectedSize = Smb2Constants.SMB2_HEADER_LENGTH + 32;

        create.setDesiredAccess(SmbConstants.FILE_READ_DATA | SmbConstants.FILE_READ_ATTRIBUTES);
        final Smb2QueryDirectoryRequest query = new Smb2QueryDirectoryRequest(th.getConfig());
        query.setFileName(getWildcard());
        create.chain(query);
        Smb2CreateResponse createResp;
        try {
            createResp = th.send(create);
        } catch (final SmbException e) {

    }

    /**
     * Sets the file name pattern for filtering directory results
     *
     * @param fileName
     *            the fileName to set
     */
    public void setFileName(final String fileName) {
        this.fileName = fileName;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.smb2.ServerMessageBlock2Request#createResponse(jcifs.CIFSContext,