int flags = NegTokenInit.DELEGATION | NegTokenInit.MUTUAL_AUTHENTICATION | NegTokenInit.INTEGRITY;
        byte[] mechToken = new byte[] { 0x01, 0x02, 0x03 };
        byte[] mic = new byte[] { (byte) 0xFE, 0x55 };

        NegTokenInit init = new NegTokenInit(mechs, flags, mechToken, mic);
        byte[] bytes = init.toByteArray();

        assertEquals((byte) 0xA1, SmbComTransaction.SMB_COM_NT_TRANSACT_SECONDARY);
    }

    @Test
    @DisplayName("Test sub-command constants")
    void testSubCommandConstants() {
        assertEquals((short) 0x0001, SmbComTransaction.TRANS2_FIND_FIRST2);
        assertEquals((short) 0x0002, SmbComTransaction.TRANS2_FIND_NEXT2);
        assertEquals((short) 0x0003, SmbComTransaction.TRANS2_QUERY_FS_INFORMATION);

    // type/class
    static final int NB_IN = 0x00200001;
    static final int NBSTAT_IN = 0x00210001;
    static final int NB = 0x0020;
    static final int NBSTAT = 0x0021;
    static final int IN = 0x0001;
    static final int A = 0x0001;
    static final int NS = 0x0002;
    static final int NULL = 0x000a;

    static final int HEADER_LENGTH = 12;

    // header field offsets

    // type/class
    static final int NB_IN = 0x00200001;
    static final int NBSTAT_IN = 0x00210001;
    static final int NB = 0x0020;
    static final int NBSTAT = 0x0021;
    static final int IN = 0x0001;
    static final int A = 0x0001;
    static final int NS = 0x0002;
    static final int NULL = 0x000a;

    static final int HEADER_LENGTH = 12;

    // header field offsets

        assertNotNull(signingKey, "Should handle large session key");
        assertEquals(16, signingKey.length, "Should still produce 16-byte key");
    }

    @ParameterizedTest
    @ValueSource(ints = { 0x0300, 0x0302, 0x0310 }) // Non-3.1.1 dialects
    @DisplayName("Should use SMB 3.0.x context for non-3.1.1 dialects")
    void testDeriveKeys_NonSMB311Dialects(int dialect) {
        // When

        byte[] buffer = new byte[512];
        request.setNotifyFlags(0x0001);
        request.setCompletionFilter(0x000000FF);

        // When
        int written = request.writeBytesWireFormat(buffer, offset);

        // Then
        assertEquals(32, written);
        assertEquals(32, SMBUtil.readInt2(buffer, offset));
        assertEquals(0x0001, SMBUtil.readInt2(buffer, offset + 2));

        // Check information level (first 2 bytes)
        int actualInfoLevel = SMBUtil.readInt2(buffer, 0);
        assertEquals(0x0101, actualInfoLevel); // FILE_BASIC_INFO maps to 0x0101

        // Check reserved bytes (4 bytes of 0x00)
        assertEquals(0x00, buffer[2]);
        assertEquals(0x00, buffer[3]);
        assertEquals(0x00, buffer[4]);

        // Tag [1] IMPLICIT, content is 0x01 0x02 0x03
        byte[] data = new byte[] { (byte) 0xA1, 0x03, 0x01, 0x02, 0x03 };
        ByteArrayInputStream bais = new ByteArrayInputStream(data);
        ASN1InputStream ais = new ASN1InputStream(bais);
        byte[] result = ASN1Util.readUnparsedTagged(1, 10, ais);
        assertArrayEquals(new byte[] { 0x01, 0x02, 0x03 }, result);
    }

    @Test

        byte[] buf = new byte[256];
        int headerStart = 0;
        long expectedSessionId = 0x1122334455667788L;
        buildHeader(buf, headerStart, NtStatus.NT_STATUS_MORE_PROCESSING_REQUIRED, 0x0001, expectedSessionId);

        int bodyStart = headerStart + Smb2Constants.SMB2_HEADER_LENGTH;
        byte[] blob = new byte[] { 10, 20, 30, 40, 50 };

        // Credit charge
        SMBUtil.writeInt2(1, buffer, bufferIndex + 6);
        // Status
        SMBUtil.writeInt4(0, buffer, bufferIndex + 8);
        // Command - SMB2_SET_INFO (0x0011)
        SMBUtil.writeInt2(0x0011, buffer, bufferIndex + 12);
        // Credits
        SMBUtil.writeInt2(1, buffer, bufferIndex + 14);
        // Flags
        SMBUtil.writeInt4(1, buffer, bufferIndex + 16); // SMB2_FLAGS_SERVER_TO_REDIR