jcifs.SID mockSid2 = mock(jcifs.SID.class);
        jcifs.SID mockSid3 = mock(jcifs.SID.class);
        when(mockSid1.unwrap(sid_t.class)).thenReturn(mockSidT);
        when(mockSid2.unwrap(sid_t.class)).thenReturn(mockSidT);
        when(mockSid3.unwrap(sid_t.class)).thenReturn(mockSidT);
        testSids = new jcifs.SID[] { mockSid1, mockSid2, mockSid3 };

        // Act

                assertTrue(SmbSession.class.isAssignableFrom((Class<?>) unwrapMethod.getReturnType()),
                        "unwrap method should return SmbSession or subtype");
            }, "unwrap(Class) method should be properly defined");
        }

        @Test
        @DisplayName("Should handle unwrap with SmbSession type")

        target = new SmbPipeHandleImpl(pipe);
    }

    @Test
    @DisplayName("unwrap returns self for assignable type; throws for incompatible and null")
    void testUnwrap() {
        // Happy path: unwrap to concrete type
        SmbPipeHandleImpl unwrapped = target.unwrap(SmbPipeHandleImpl.class);
        assertSame(target, unwrapped);

        // Incompatible type: expect ClassCastException

        // Act & Assert
        // unwrap to interface itself should return same instance
        CredentialsInternal unwrapped = creds.unwrap(CredentialsInternal.class);
        assertNotNull(unwrapped, "unwrap to CredentialsInternal returns instance");
        assertSame(creds, unwrapped, "unwrap returns the same object instance");

    }

    @Test
    @DisplayName("unwrap returns this for compatible types and throws otherwise")
    void unwrapBehavior() {
        // Happy paths
        SmbTransport asIface = transport.unwrap(SmbTransport.class);
        assertSame(transport, asIface);
        SmbTransportInternal asInternal = transport.unwrap(SmbTransportInternal.class);
        assertSame(transport, asInternal);

        when(mockTransport.unwrap(SmbTransportInternal.class)).thenReturn(internal);
        when(internal.getSmbSession(eq(ctx), eq("server.test"), isNull())).thenReturn(session);
        when(session.unwrap(SmbSessionInternal.class)).thenReturn(session);
        when(session.getSmbTree(eq("IPC$"), isNull())).thenReturn(tree);
        when(tree.unwrap(SmbTreeInternal.class)).thenReturn(tree);

                            .unwrap(SmbTransportInternal.class);
                    final SmbTransportInternal trans = this.exclusiveTransport;
                    try (SmbSessionInternal smbSession = trans.getSmbSession(this.ctx, host, targetDomain).unwrap(SmbSessionInternal.class);
                            SmbTreeImpl uct = smbSession.getSmbTree(share, null).unwrap(SmbTreeImpl.class);

        }
    }

    @Nested
    @DisplayName("unwrap method tests")
    class UnwrapTests {

        private Address mockAddress;

        @BeforeEach
        void setup() {
            mockAddress = mock(Address.class);
        }

        @Test
        void shouldReturnUnwrappedAddressWhenWrappedIsAddress() {
            when(mockAddress.unwrap(Address.class)).thenReturn(mockAddress);

            assertSame(data, data.next());
        }
    }

    @Nested
    @DisplayName("Unwrap Tests")
    class UnwrapTests {

        @Test
        @DisplayName("Should unwrap to DfsReferralData interface")
        void testUnwrapToDfsReferralData() {
            DfsReferralData unwrapped = referralData.unwrap(DfsReferralData.class);
            assertSame(referralData, unwrapped);
        }

        @Test

    }

    @Test
    @DisplayName("unwrap: returns self for compatible type and throws for incompatible")
    @SuppressWarnings({ "rawtypes", "unchecked" })
    void testUnwrap() {
        SmbSessionImpl session = newSession();

        // Happy path: ask for SmbSession and SmbSessionInternal
        assertSame(session, session.unwrap(SmbSessionInternal.class));