@Test
    @DisplayName("Test with different buffer sizes")
    void testWithDifferentBufferSizes() {
        // Test with buffers of different sizes
        byte[] smallBuffer = new byte[] { 0x01 };
        byte[] mediumBuffer = new byte[] { 0x01, 0x02, 0x03, 0x04, 0x05 };

        SmbNegotiation negotiationDifferentSizes = new SmbNegotiation(mockRequest, mockResponse, smallBuffer, mediumBuffer);

import jcifs.smb1.util.Hexdump;

class SmbComOpenAndX extends AndXServerMessageBlock {

    // 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

        .putBoolean(false)
        .putBoolean(false);
    long hashCode = hasher.hash().asLong();

    hasher = HASH_FN.newHasher();
    hasher
        .putByte((byte) 0x01)
        .putByte((byte) 0x01)
        .putByte((byte) 0x00)
        .putByte((byte) 0x01)
        .putByte((byte) 0x00)
        .putByte((byte) 0x00)
        .putByte((byte) 0x00)
        .putByte((byte) 0x00);

        byte[] data = new byte[] { 0x01, 0x02, 0x03, 0x04 };

        assertDoesNotThrow(() -> digest.update(data, 0, data.length));
    }

    @Test
    @DisplayName("Test update method with zero length")
    void testUpdateWithZeroLength() {
        SMB1SigningDigest digest = new SMB1SigningDigest(testMacSigningKey);
        byte[] data = new byte[] { 0x01, 0x02, 0x03, 0x04 };

    /**
     * No flags set in SMB header.
     */
    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;

            bufferIndex += 2;
        }
        this.setNumEntries(SMBUtil.readInt2(buffer, bufferIndex));
        bufferIndex += 2;
        this.isEndOfSearch = ((buffer[bufferIndex] & 0x01) == 0x01) == true;
        bufferIndex += 2;
        this.eaErrorOffset = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 2;
        this.lastNameOffset = SMBUtil.readInt2(buffer, bufferIndex);

        .putBoolean(false);
    long hashCode = hasher.hash().asLong();

    hasher = HASH_FN.newHasher();
    hasher
        .putByte((byte) 0x01)
        .putByte((byte) 0x01)
        .putByte((byte) 0x00)
        .putByte((byte) 0x01)
        .putByte((byte) 0x00)
        .putByte((byte) 0x00)
        .putByte((byte) 0x00)
        .putByte((byte) 0x00);

    }

    @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);

                // 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),

            context = new PreauthIntegrityNegotiateContext();
            byte[] buffer = new byte[] { (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, // Padding
                    0x01, 0x00, // 1 hash algo
                    0x02, 0x00, // 2 bytes salt
                    0x01, 0x00, // SHA512
                    (byte) 0xAA, (byte) 0xBB // Salt
            };

            // Act