public void testCollisionsDueToIncorrectSignExtension() {
    byte[] col1 = new byte[] {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, (byte) 0x80};
    byte[] col2 = new byte[] {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, (byte) 0x81};
    byte[] col3 = new byte[] {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, (byte) 0xff};

    ImmutableSet<HashCode> hashCodes =
        ImmutableSet.of(

        elementVector.add(new DERTaggedObject(0, new ASN1Integer(1))); // authType
        elementVector.add(new DERTaggedObject(1, new DEROctetString(new byte[] { 0x01, 0x02 }))); // authData
        authVector.add(new DERSequence(elementVector));

        byte[] token = new DERSequence(authVector).getEncoded();
        Map<Integer, KerberosKey> keys = new HashMap<>();

        // 2. WHEN

        // Verify that flags are set correctly (DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG)
        // The actual values for DCERPC_FIRST_FRAG and DCERPC_LAST_FRAG are typically 0x01 and 0x02 respectively.
        int expectedFlags = 0x01 | 0x02; // DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG
        assertEquals(expectedFlags, msrpcSamrOpenDomain.getFlags(), "flags should be initialized to DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG");

            // Arrange
            context = new PreauthIntegrityNegotiateContext();
            byte[] buffer = new byte[] { 0x02, 0x00, // 2 hash algos
                    0x04, 0x00, // 4 bytes salt
                    0x01, 0x00, // SHA512
                    0x02, 0x00, // Another hash algo
                    0x0A, 0x0B, 0x0C, 0x0D // Salt
            };

            // Act

     */

    public static final int PIPE_TYPE_TRANSACT = 0x0200;

    /**
     * Named pipe type flag for DCE RPC transact operations.
     */
    public static final int PIPE_TYPE_DCE_TRANSACT = 0x0200 | 0x0400;

    InputStream pipeIn;
    OutputStream pipeOut;
    int pipeType;

    /**

    private byte[] testResponseBuffer;
    private SmbNegotiation negotiation;

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
        testRequestBuffer = new byte[] { 0x01, 0x02, 0x03, 0x04 };
        testResponseBuffer = new byte[] { 0x05, 0x06, 0x07, 0x08 };
        negotiation = new SmbNegotiation(mockRequest, mockResponse, testRequestBuffer, testResponseBuffer);
    }

    @Test

        }

        @Test
        @DisplayName("DCERPC_LAST_FRAG should have correct value")
        void testDcerpcLastFrag() {
            assertEquals(0x02, DcerpcConstants.DCERPC_LAST_FRAG, "DCERPC_LAST_FRAG should be 0x02");
        }

        @Test
        @DisplayName("DCERPC_PENDING_CANCEL should have correct value")
        void testDcerpcPendingCancel() {

     */
    int DCERPC_FIRST_FRAG = 0x01; /* First fragment */
    /**
     * Last fragment flag - indicates last fragment of a multi-fragment message
     */
    int DCERPC_LAST_FRAG = 0x02; /* Last fragment */
    /**
     * Pending cancel flag - indicates cancel was pending at sender
     */
    int DCERPC_PENDING_CANCEL = 0x04; /* Cancel was pending at sender */
    /**
     * Reserved flag for future use

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
    private static final int SHARING_COMPATIBILITY = 0x00;

    void testSetDataSize() {
        response.dataSize = 1024;
        assertEquals(1024, response.dataSize);
    }

    @Test
    void testSetGrantedAccess() {
        response.grantedAccess = 0x02; // FILE_WRITE_DATA
        assertEquals(0x02, response.grantedAccess);
    }

    @Test
    void testSetFileType() {
        response.fileType = 1;
        assertEquals(1, response.fileType);
    }

    @Test