buffer[bufferIndex++] = (byte) 0x40;
        buffer[bufferIndex++] = 0;
        buffer[bufferIndex++] = 0;
        // maxRawSize
        buffer[bufferIndex++] = (byte) 0x00;
        buffer[bufferIndex++] = (byte) 0x10;
        buffer[bufferIndex++] = 0;
        buffer[bufferIndex++] = 0;
        // sessionKey
        buffer[bufferIndex++] = 1;
        buffer[bufferIndex++] = 2;
        buffer[bufferIndex++] = 3;

    static final byte TRANS2_QUERY_FS_INFORMATION = (byte) 0x03;
    static final byte TRANS2_QUERY_PATH_INFORMATION = (byte) 0x05;
    static final byte TRANS2_GET_DFS_REFERRAL = (byte) 0x10;
    static final byte TRANS2_SET_FILE_INFORMATION = (byte) 0x08;

    static final int NET_SHARE_ENUM = 0x0000;
    static final int NET_SERVER_ENUM2 = 0x0068;
    static final int NET_SERVER_ENUM3 = 0x00D7;

        when(mockFile2.length()).thenReturn(0L);
        when(mockFile2.lastModified()).thenReturn(2000L);
        when(mockFile2.isDirectory()).thenReturn(true);
        when(mockFile2.getAttributes()).thenReturn(0x10);
        when(mockFile2.createTime()).thenReturn(600L);
        when(mockFile2.lastAccess()).thenReturn(900L);

        // Update cache
        List<SmbFile> files = Arrays.asList(mockFile1, mockFile2);

        }

        @Test
        @DisplayName("Should have correct fail immediately flag value")
        void testFailImmediatelyFlag() {
            assertEquals(0x10, Smb2Lock.SMB2_LOCKFLAG_FAIL_IMMEDIATELY);
        }

        @Test
        @DisplayName("Should allow flag combinations")
        void testFlagCombinations() {

        assertEquals(0x0C, Smb2QueryDirectoryRequest.FILE_NAMES_INFO);
        assertEquals(0x24, Smb2QueryDirectoryRequest.FILE_ID_BOTH_DIRECTORY_INFO);
        assertEquals(0x26, Smb2QueryDirectoryRequest.FILE_ID_FULL_DIRECTORY_INFO);
    }

    @Test
    @DisplayName("Test all query flags constants")
    void testQueryFlagsConstants() {

        return Stream.of(Arguments.of(new byte[] {}, ""), Arguments.of(new byte[] { (byte) 0x00 }, "00"),
                Arguments.of(new byte[] { (byte) 0x0F }, "0f"), Arguments.of(new byte[] { (byte) 0x10 }, "10"),
                Arguments.of(new byte[] { (byte) 0xAB }, "ab"),
                Arguments.of(new byte[] { (byte) 0x7F, (byte) 0x80, (byte) 0xFF }, "7f80ff"));
    }

        // Arrange: minimal valid fields + APPLICATION tag 3
        ASN1EncodableVector v = new ASN1EncodableVector();
        byte ap = (byte) 0x12;
        v.add(new DERTaggedObject(true, 0, new ASN1Integer(Integer.parseInt(KerberosConstants.KERBEROS_VERSION))));
        v.add(new DERTaggedObject(true, 1, new ASN1Integer(Integer.parseInt(KerberosConstants.KERBEROS_AP_REQ))));

    private CommonServerMessageBlock message;

    private byte[] testData;

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

    @Test
    @DisplayName("Test sign method with valid parameters")
    void testSignWithValidParameters() {
        // Arrange
        int offset = 0;
        int length = testData.length;

	// string "pfx"
	o = append(o, 0xa3, 0x70, 0x66, 0x78)
	o = msgp.AppendString(o, z.Prefix)
	// string "obj"
	o = append(o, 0xa3, 0x6f, 0x62, 0x6a)
	o = msgp.AppendString(o, z.Object)
	// string "id"
	o = append(o, 0xa2, 0x69, 0x64)
	o = msgp.AppendInt64(o, z.ItemsDecommissioned)
	// string "idf"
	o = append(o, 0xa3, 0x69, 0x64, 0x66)
	o = msgp.AppendInt64(o, z.ItemsDecommissionFailed)
	// string "bd"

        // Initialize test data
        for (int i = 0; i < 16; i++) {
            testMachineId[i] = (byte) (i + 1);
        }
        for (int i = 0; i < 32; i++) {
            testSalt[i] = (byte) (i + 0x10);
        }

        // Default configuration for SMB 3.1.1 with encryption
        when(mockConfig.isDfsDisabled()).thenReturn(false);
        when(mockConfig.isEncryptionEnabled()).thenReturn(true);