// Then
        assertEquals(ServerMessageBlock.SMB_COM_TRANSACTION2, trans2SetFileInformation.command);
        assertEquals(Trans2SetFileInformation.TRANS2_SET_FILE_INFORMATION, trans2SetFileInformation.subCommand);
        assertEquals(6, trans2SetFileInformation.maxParameterCount);
        assertEquals(0, trans2SetFileInformation.maxDataCount);
        assertEquals(0, trans2SetFileInformation.maxSetupCount);
    }

    @Test

class Trans2QueryFSInformation extends SmbComTransaction {

    private final int informationLevel;

    Trans2QueryFSInformation(final int informationLevel) {
        command = SMB_COM_TRANSACTION2;
        subCommand = TRANS2_QUERY_FS_INFORMATION;
        this.informationLevel = informationLevel;
        totalParameterCount = 2;
        totalDataCount = 0;
        maxParameterCount = 0;
        maxDataCount = 800;

        final int start = dstIndex;
        byte[] descr;
        final int which = subCommand == NET_SERVER_ENUM2 ? 0 : 1;

        try {
            descr = DESCR[which].getBytes("ASCII");
        } catch (final UnsupportedEncodingException uee) {
            return 0;
        }

        writeInt2(subCommand & 0xFF, dst, dstIndex);
        dstIndex += 2;
        System.arraycopy(descr, 0, dst, dstIndex, descr.length);

        command = SMB_COM_TRANSACTION;
        subCommand = TRANS_TRANSACT_NAMED_PIPE;
        maxParameterCount = 0;
        maxDataCount = 0xFFFF;
        maxSetupCount = (byte) 0x00;
        setupCount = 2;
        name = "\\PIPE\\";
    }

    @Override
    int writeSetupWireFormat(final byte[] dst, int dstIndex) {
        dst[dstIndex] = subCommand;
        dstIndex++;
        dst[dstIndex++] = (byte) 0x00;

        // ServerMessageBlock.
        assertEquals(SmbComTransaction.SMB_COM_TRANSACTION2, cmd.command, "command should be TRANSACTION2");
        assertEquals(SmbComTransaction.TRANS2_QUERY_FS_INFORMATION, cmd.subCommand, "subCommand should be QUERY_FS_INFORMATION");
        // the fields are set in the constructor – check that the counts match
        assertEquals(2, cmd.totalParameterCount, "totalParameterCount should be 2");

        assertEquals(0, response.getCommand());

        // Verify we can change the subcommand
        response.setSubCommand((byte) 0xFF);
        assertEquals((byte) 0xFF, response.getSubCommand());

        // But creating a new instance should have the correct subcommand
        Trans2SetFileInformationResponse newResponse = new Trans2SetFileInformationResponse(config);

        command = SMB_COM_TRANSACTION;
        subCommand = TRANS_WAIT_NAMED_PIPE;
        timeout = 0xFFFFFFFF;
        maxParameterCount = 0;
        maxDataCount = 0;
        maxSetupCount = (byte) 0x00;
        setupCount = 2;
    }

    @Override
    int writeSetupWireFormat(final byte[] dst, int dstIndex) {
        dst[dstIndex] = subCommand;
        dstIndex++;
        dst[dstIndex++] = (byte) 0x00;

        assertEquals(SmbComTransaction.TRANS2_QUERY_FS_INFORMATION, response.subCommand,
                "SubCommand should be TRANS2_QUERY_FS_INFORMATION");
    }

    /**
     * Tests the readDataWireFormat method with the SMB_INFO_ALLOCATION information level.
     */
    @Test
    void testReadDataWireFormat_SmbInfoAllocation() {

    Trans2FindNext2(final int sid, final int resumeKey, final String filename) {
        this.sid = sid;
        this.resumeKey = resumeKey;
        this.filename = filename;
        command = SMB_COM_TRANSACTION2;
        subCommand = TRANS2_FIND_NEXT2;
        informationLevel = Trans2FindFirst2.SMB_FILE_BOTH_DIRECTORY_INFO;
        flags = 0x00;
        maxParameterCount = 8;
        maxDataCount = Trans2FindFirst2.LIST_SIZE;

        command = SMB_COM_TRANSACTION2;
        subCommand = TRANS2_QUERY_PATH_INFORMATION;
        totalDataCount = 0;
        maxParameterCount = 2;
        maxDataCount = 40;
        maxSetupCount = (byte) 0x00;
    }

    @Override
    int writeSetupWireFormat(final byte[] dst, int dstIndex) {
        dst[dstIndex] = subCommand;
        dstIndex++;
        dst[dstIndex++] = (byte) 0x00;