// Act
        lookupSids = new MsrpcLookupSids(mockPolicyHandle, testSids);

        // Assert using reflection
        Field sidsField = lsarpc.LsarLookupSids.class.getDeclaredField("sids");
        sidsField.setAccessible(true);
        Object sidsObj = sidsField.get(lookupSids);

        assertNotNull(sidsObj);
        assertTrue(sidsObj instanceof LsarSidArrayX);
    }

    @Test

    }

    @Test
    @DisplayName("Test user flags using mock")
    void testUserFlags() throws Exception {
        PacLogonInfo logonInfo = mock(PacLogonInfo.class);

        // Test with extra SIDs flag
        when(logonInfo.getUserFlags()).thenReturn(PacConstants.LOGON_EXTRA_SIDS);
        assertEquals(PacConstants.LOGON_EXTRA_SIDS, logonInfo.getUserFlags());

        // Test with resource groups flag

            }
            final SID[] sids = new SID[aces.length];
            for (ai = 0; ai < aces.length; ai++) {
                sids[ai] = aces[ai].getSID();
            }

            for (int off = 0; off < sids.length; off += 64) {
                int len = sids.length - off;
                if (len > 64) {
                    len = 64;
                }