int[] packetTypes = { DcerpcConstants.RPC_PT_REQUEST, DcerpcConstants.RPC_PT_PING, DcerpcConstants.RPC_PT_RESPONSE,
                    DcerpcConstants.RPC_PT_FAULT, DcerpcConstants.RPC_PT_BIND, DcerpcConstants.RPC_PT_BIND_ACK,
                    DcerpcConstants.RPC_PT_BIND_NAK, DcerpcConstants.RPC_PT_ALTER_CONTEXT, DcerpcConstants.RPC_PT_ALTER_CONTEXT_RESPONSE,

            assertFalse(message.isFlagSet(DcerpcConstants.RPC_C_PF_BROADCAST));

            // Test when flag is set
            message.flags = DcerpcConstants.RPC_C_PF_BROADCAST;
            assertTrue(message.isFlagSet(DcerpcConstants.RPC_C_PF_BROADCAST));

            // Test with multiple flags, one is set
            message.flags = DcerpcConstants.RPC_C_PF_BROADCAST | DcerpcConstants.RPC_C_PF_NO_FRAGMENT;

        lookupSids = new MsrpcLookupSids(mockPolicyHandle, testSids);

        // Assert
        assertNotNull(lookupSids);
        assertEquals(0, lookupSids.getPtype());
        assertEquals(DcerpcConstants.DCERPC_FIRST_FRAG | DcerpcConstants.DCERPC_LAST_FRAG, lookupSids.getFlags());
    }

    @Test
    void constructor_shouldHandleSingleSid() {
        // Arrange
        jcifs.SID mockSid = mock(jcifs.SID.class);

        // Test individual flag checking
        assertTrue(dfsRootEnum.isFlagSet(DcerpcConstants.DCERPC_FIRST_FRAG));
        assertTrue(dfsRootEnum.isFlagSet(DcerpcConstants.DCERPC_LAST_FRAG));

        // Combined flags should equal FIRST_FRAG | LAST_FRAG
        int expectedFlags = DcerpcConstants.DCERPC_FIRST_FRAG | DcerpcConstants.DCERPC_LAST_FRAG;
        assertEquals(expectedFlags, dfsRootEnum.getFlags());
    }

            assertEquals(0, bindWithParams.getOpnum(), "Opnum should be 0");
            assertEquals(11, bindWithParams.getPtype(), "Ptype should be 11 for bind message");
            assertEquals(DcerpcConstants.DCERPC_FIRST_FRAG | DcerpcConstants.DCERPC_LAST_FRAG, bindWithParams.getFlags(),
                    "Flags should be set for first and last fragment");

            // Verify private fields using reflection

        // Verify constructor properly initializes the object
        assertNotNull(msrpcShareGetInfo);
        assertEquals(0, msrpcShareGetInfo.getPtype());
        assertEquals(DcerpcConstants.DCERPC_FIRST_FRAG | DcerpcConstants.DCERPC_LAST_FRAG, msrpcShareGetInfo.getFlags());

        // Verify parent class initialization
        assertNotNull(msrpcShareGetInfo.info);

/**
 * Abstract base class for DCERPC handles providing core RPC functionality.
 * This class manages DCE/RPC protocol bindings and communications over SMB transport.
 */
public abstract class DcerpcHandle implements DcerpcConstants {

    /**
     * Default constructor for DcerpcHandle.
     * Initializes the DCE/RPC handle for protocol operations.
     */
    protected DcerpcHandle() {
        // Default constructor
    }

import jcifs.dcerpc.ndr.NdrException;

/**
 * Abstract base class for DCE/RPC communication handles.
 * This class provides the foundation for DCE/RPC client communication.
 */
public abstract class DcerpcHandle implements DcerpcConstants, AutoCloseable {

    /*
     * Bindings are in the form:
     * proto:\\server[key1=val1,key2=val2]
     * or
     * proto:server[key1=val1,key2=val2]
     * or
     * proto:[key1=val1,key2=val2]
     *