void testSetCloseFlags() throws Exception {
        int testFlags = 0x00000001; // SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB
        request.setCloseFlags(testFlags);

        Field closeFlagsField = Smb2CloseRequest.class.getDeclaredField("closeFlags");
        closeFlagsField.setAccessible(true);
        int storedFlags = (int) closeFlagsField.get(request);
        assertEquals(testFlags, storedFlags);
    }

    @Test

    void setUp() {
        message = new TestNtlmMessage();
    }

    @Test
    void testGetAndSetFlags() {
        // Test setting and getting flags
        int testFlags = 0x12345678;
        message.setFlags(testFlags);
        assertEquals(testFlags, message.getFlags(), "Flags should be set and retrieved correctly.");
    }

    @Test
    void testGetFlag() {
        // Test getting individual flags

    }

    // Test different flag combinations
    @Test
    void testGetGroupMemberSids_DifferentFlags() throws CIFSException {
        int[] testFlags = { 0, 1, 2, 4, 8, 16, 32, Integer.MAX_VALUE };

        for (int flag : testFlags) {
            when(sidResolver.getGroupMemberSids(any(CIFSContext.class), anyString(), any(SID.class), anyInt(), eq(flag)))
                    .thenReturn(new SID[0]);

        Properties props = new Properties();
        // Set some default test properties
        props.setProperty("jcifs.smb.client.username", "testuser");
        props.setProperty("jcifs.smb.client.password", "testpass");
        props.setProperty("jcifs.smb.client.domain", "testdomain");
        props.setProperty("jcifs.netbios.hostname", "testhost");
        props.setProperty("jcifs.netbios.scope", "");

        // Then
        assertEquals(messageSize, transformHeader.getOriginalMessageSize());
    }

    @Test
    @DisplayName("Should set and get flags")
    void testFlags() {
        // Given
        int flags = 0x0001; // Encrypted flag

        // When
        transformHeader.setFlags(flags);

        // Then
        assertEquals(flags, transformHeader.getFlags());
    }

    // Test getLoginCredential method
    public void test_getLoginCredential_returnsValidCredential() {
        // Setup test credential
        TestLoginCredential expectedCredential = new TestLoginCredential("testuser", "testpass");
        authenticator.setLoginCredential(expectedCredential);

        // Execute
        LoginCredential result = authenticator.getLoginCredential();

        // Verify
        assertNotNull(result);

        when(mockDelegate.getDefaultDomain()).thenReturn("WORKGROUP");
        when(mockDelegate.getDefaultUsername()).thenReturn("testuser");
        when(mockDelegate.getDefaultPassword()).thenReturn("testpass");
        when(mockDelegate.getNativeLanman()).thenReturn("jCIFS");

        // When
        String oemEncoding = delegatingConfig.getOemEncoding();

        // Configure authentication - set fields directly since NtlmPasswordAuthentication is final
        mockAuth.username = "testuser";
        mockAuth.domain = "TESTDOMAIN";
        mockAuth.password = "testpass";

        when(mockAuth.getAnsiHash(any(byte[].class))).thenReturn(new byte[24]);
        when(mockAuth.getUnicodeHash(any(byte[].class))).thenReturn(new byte[24]);
        when(mockAuth.getName()).thenReturn("testuser");

    @BeforeEach
    void setUp() throws Exception {
        // Create a real NtlmPasswordAuthentication instance
        auth = new NtlmPasswordAuthentication("TESTDOMAIN", "testuser", "testpass");

        // Initialize ServerData to avoid NullPointerException
        SmbTransport.ServerData serverData = transport.new ServerData();
        serverData.security = 0; // Set to 0 or appropriate value for SECURITY_SHARE

        rDataLengthField.set(response, 31); // 1 + 18 + 6 + 6

        // Number of names
        src[srcIndex] = 0x01;

        // Name entry with all flags set
        String name = "TESTFLAGS       ";
        System.arraycopy(name.getBytes("US-ASCII"), 0, src, srcIndex + 1, 16);
        src[srcIndex + 16] = 0x00; // hex code
        src[srcIndex + 17] = (byte) 0xFE; // All flags except one: 11111110