private static LogStream log = LogStream.getInstance();

    // KGS!@#$%
    private static final byte[] S8 =
            { (byte) 0x4b, (byte) 0x47, (byte) 0x53, (byte) 0x21, (byte) 0x40, (byte) 0x23, (byte) 0x24, (byte) 0x25 };

    /* Accepts key multiple of 7
     * Returns enc multiple of 8
     * Multiple is the same like: 21 byte key gives 24 byte result
     */

        smbComOpenAndX = new SmbComOpenAndX(fileName, access, flags, andx);
        assertEquals(fileName, smbComOpenAndX.path);
        assertEquals(ServerMessageBlock.SMB_COM_OPEN_ANDX, smbComOpenAndX.command);
        assertEquals(0x12, smbComOpenAndX.openFunction); // OPEN_FN_CREATE | OPEN_FN_TRUNC
    }

    /**
     * Test constructor with O_CREAT and O_EXCL flags.
     */
    @Test
    void testConstructor_CreateAndFailIfExists() {

            buffer[8] = 0x00;
            buffer[9] = 0x10; // alloc = 4096
            buffer[12] = 0x00;
            buffer[13] = 0x08; // free = 2048
            buffer[16] = 0x00;
            buffer[17] = 0x02; // bytesPerSect = 512

            int bytesDecoded = smbInfoAllocation.decode(buffer, 0, buffer.length);

            assertEquals(20, bytesDecoded);

        assertEquals(0x02, Smb2QueryDirectoryRequest.FILE_FULL_DIRECTORY_INFO);
        assertEquals(0x03, Smb2QueryDirectoryRequest.FILE_BOTH_DIRECTORY_INFO);
        assertEquals(0x0C, Smb2QueryDirectoryRequest.FILE_NAMES_INFO);
        assertEquals(0x24, Smb2QueryDirectoryRequest.FILE_ID_BOTH_DIRECTORY_INFO);
        assertEquals(0x26, Smb2QueryDirectoryRequest.FILE_ID_FULL_DIRECTORY_INFO);
    }

    void byteArrayConstructor_malformedDER_throwsWrapped() {
        // Arrange: Truncated SEQUENCE (0x30 len=2 but only 1 byte of content)
        byte[] malformed = new byte[] { 0x30, 0x02, 0x01 };

        // Act + Assert
        PACDecodingException ex = assertThrows(PACDecodingException.class, () -> new KerberosApRequest(malformed, null));
        assertTrue(ex.getMessage().contains("Malformed Kerberos Ticket"));

        ndrBuffer.readOctetArray(destData, 1, 3); // Read 0x10, 0x11, 0x12 into destData[1-3]

        assertEquals(3, ndrBuffer.getIndex());
        assertEquals(0x00, destData[0]);
        assertEquals(0x10, destData[1]);
        assertEquals(0x11, destData[2]);
        assertEquals(0x12, destData[3]);
        assertEquals(0x00, destData[4]);
    }

    @Test

     */
    public static final int MUTUAL_AUTHENTICATION = 0x40;
    /**
     * Context flag for replay detection capability
     */
    public static final int REPLAY_DETECTION = 0x20;
    /**
     * Context flag for sequence checking capability
     */
    public static final int SEQUENCE_CHECKING = 0x10;
    /**
     * Context flag for anonymity capability
     */

    @DisplayName("Test buffer management")
    void testBufferManagement() {
        byte[] buffer = new byte[1024];
        buffer[0] = 0x42;

        transaction.setBuffer(buffer);

        byte[] released = transaction.releaseBuffer();
        assertSame(buffer, released);
        assertEquals(0x42, released[0]);

        // After release, getting buffer again should return null
        assertNull(transaction.releaseBuffer());

   * http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-12#appendix-C.2.4
   */
  @Test
  fun readIndexedHeaderFieldFromStaticTableWithoutBuffering() {
    bytesIn.writeByte(0x20) // Dynamic table size update (size = 0).
    bytesIn.writeByte(0x82) // == Indexed - Add ==
    // idx = 2 -> :method: GET
    hpackReader!!.readHeaders()

    // Not buffered in header table.
    assertThat(hpackReader!!.headerCount).isEqualTo(0)

        when(cfg.isTraceResourceUsage()).thenReturn(false);
        stubValidTree(1L, true, true);

        byte[] fidBytes = new byte[] { 0x01, 0x02 };
        SmbFileHandleImpl h1 = new SmbFileHandleImpl(cfg, fidBytes, tree, "//u/one", 0x10, 0x20, 0x30, 0x40, 0L);
        String s1 = h1.toString();
        assertTrue(s1.contains("//u/one"));
        assertTrue(s1.contains("0102"), "Expected hex fileId in string");