// flags (not the same as flags constructor argument)
    private static final int FLAGS_RETURN_ADDITIONAL_INFO = 0x01;
    private static final int FLAGS_REQUEST_OPLOCK = 0x02;
    private static final int FLAGS_REQUEST_BATCH_OPLOCK = 0x04;

    // Access Mode Encoding for desiredAccess
    private static final int SHARING_COMPATIBILITY = 0x00;
    private static final int SHARING_DENY_READ_WRITE_EXECUTE = 0x10;

    }

    @Test
    @DisplayName("Should define SMB flags constants")
    void testSmbFlags() {
        assertEquals(0x00, SmbConstants.FLAGS_NONE);
        assertEquals(0x01, SmbConstants.FLAGS_LOCK_AND_READ_WRITE_AND_UNLOCK);
        assertEquals(0x02, SmbConstants.FLAGS_RECEIVE_BUFFER_POSTED);
        assertEquals(0x08, SmbConstants.FLAGS_PATH_NAMES_CASELESS);
        assertEquals(0x10, SmbConstants.FLAGS_PATH_NAMES_CANONICALIZED);

     */
    int RPC_PT_REQUEST = 0x00;
    /**
     * Ping packet type
     */
    int RPC_PT_PING = 0x01;
    /**
     * Response packet type
     */
    int RPC_PT_RESPONSE = 0x02;
    /**
     * Fault packet type - indicates an error
     */
    int RPC_PT_FAULT = 0x03;
    /**
     * Bind packet type - establishes context
     */
    int RPC_PT_BIND = 0x0B;
    /**

        buffer[38] = 0x00;

        // Parameter count (2 bytes)
        buffer[39] = 0x00;
        buffer[40] = 0x00;

        // Parameter offset (2 bytes)
        buffer[41] = 0x00;
        buffer[42] = 0x00;

        // Parameter displacement (2 bytes)
        buffer[43] = 0x00;
        buffer[44] = 0x00;

        // Data count (2 bytes)
        buffer[45] = 0x00;
        buffer[46] = 0x00;

        byte[] rawBytes = new byte[] { 0x01, 0x02, 0x03, 0x04 }; // Represents 0x04030201 (little-endian)
        AvFlags avFlags = new AvFlags(rawBytes);
        assertNotNull(avFlags, "AvFlags object should not be null");
        assertEquals(0x04030201, avFlags.getFlags(), "Flags should match the raw bytes (little-endian)");

        // Test with zero
        byte[] zeroBytes = new byte[] { 0x00, 0x00, 0x00, 0x00 };

     */
    int FLAGS_NONE = 0x00;
    /**
     * Obsolete lock and read/write and unlock flag.
     */
    int FLAGS_LOCK_AND_READ_WRITE_AND_UNLOCK = 0x01;
    /**
     * Receive buffer has been posted flag.
     */
    int FLAGS_RECEIVE_BUFFER_POSTED = 0x02;
    /**
     * Path names are case-insensitive flag.
     */
    int FLAGS_PATH_NAMES_CASELESS = 0x08;
    /**
     * Path names are canonicalized flag.

    // flags (not the same as flags constructor argument)
    static final int FLAGS_RETURN_ADDITIONAL_INFO = 0x01;
    static final int FLAGS_REQUEST_OPLOCK = 0x02;
    static final int FLAGS_REQUEST_BATCH_OPLOCK = 0x04;

    // Access Mode Encoding for desiredAccess
    static final int SHARING_COMPATIBILITY = 0x00;
    static final int SHARING_DENY_READ_WRITE_EXECUTE = 0x10;
    static final int SHARING_DENY_WRITE = 0x20;

                // Wrong TOK_ID
                Arguments.of("wrong TOK_ID", new byte[] { 0x00, 0x02, 0x00, 0x01 }, IllegalArgumentException.class),

                // OID length claims more than available
                Arguments.of("oid length exceeds buffer", new byte[] { 0x04, 0x01, 0x00, 0x10, 0x06 }, IllegalArgumentException.class),

        byte[] wireData = new byte[] { 0x10, 0x00, // StructureSize (must be 16)
                0x01, // ShareType (DISK)
                0x00, // Reserved
                0x01, 0x00, 0x00, 0x00, // ShareFlags
                0x08, 0x00, 0x00, 0x00, // Capabilities
                (byte) 0xFF, 0x01, 0x1F, 0x00 // MaximalAccess
        };

        // When

    }

    /**
     * Test constructor with a malformed ASN.1 token.
     */
    @Test
    void testConstructor_MalformedToken() {
        // 1. GIVEN
        byte[] malformedToken = new byte[] { 0x00, 0x01, 0x02, 0x03 }; // Not a valid ASN.1 sequence
        Map<Integer, KerberosKey> keys = new HashMap<>();

        // 2. WHEN & 3. THEN
        PACDecodingException exception = assertThrows(PACDecodingException.class, () -> {