address.toInetAddress();
            address.unwrap(Address.class);
        }, "All Address interface methods should be callable");
    }

    @Test
    @DisplayName("unwrap method should return correct type when supported")
    void testUnwrapMethodContract() throws Exception {
        // Given
        when(mockAddress.unwrap(Address.class)).thenReturn(mockAddress);

        // When & Then

        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);

	}
}

const unwrapErrsDepth = 3

// unwrapErrs upto the point where errors.Unwrap(err) returns nil
func unwrapErrs(err error) (leafErr error) {
	uerr := errors.Unwrap(err)
	depth := 1
	for uerr != nil {
		// Save the current `uerr`
		leafErr = uerr
		// continue to look for leaf errors underneath
		uerr = errors.Unwrap(leafErr)
		depth++
		if depth == unwrapErrsDepth {
			// If we have reached enough depth we

        SID mockSid1 = mock(SID.class);
        SID mockSid2 = mock(SID.class);

        // Mock the unwrap method to return a sid_t instance
        sid_t sidT1 = new sid_t();
        sid_t sidT2 = new sid_t();
        when(mockSid1.unwrap(sid_t.class)).thenReturn(sidT1);
        when(mockSid2.unwrap(sid_t.class)).thenReturn(sidT2);

        jcifs.SID[] sids = { mockSid1, mockSid2 };

public interface DfsReferralData {

    /**
     * Unwrap the referral data to a specific implementation type
     *
     * @param <T> the target type to unwrap to
     * @param type the class of the target type
     * @return the referral adapted to type
     * @throws ClassCastException
     *             if the type is not valid for this object
     */
    <T extends DfsReferralData> T unwrap(Class<T> type);

    /**

        }
    }

    @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);

		t.Fatalf("reading response body failed: %v", err)
	}
	if string(body) != "hello" {
		t.Fatalf("response body incorrect: %v", string(body))
	}

	// Check that Unwrap works
	if trw.Unwrap() != rw {
		t.Fatalf("Unwrap returned wrong result: %v", trw.Unwrap())
	}
}

func TestHeadersAlreadyWritten(t *testing.T) {
	rw := httptest.NewRecorder()
	trw := &trackingResponseWriter{ResponseWriter: rw}

// the string as a value that satisfies error of type tagging.Error
func Errorf(format string, a ...any) error {
	return Error{err: fmt.Errorf(format, a...)}
}

// Unwrap the internal error.
func (e Error) Unwrap() error { return e.err }

// Error 'error' compatible method.
func (e Error) Error() string {
	if e.err == nil {
		return "lifecycle: cause <nil>"
	}
	return e.err.Error()

// the string as a value that satisfies error of type tagging.Error
func Errorf(format string, a ...any) error {
	return Error{err: fmt.Errorf(format, a...)}
}

// Unwrap the internal error.
func (e Error) Unwrap() error { return e.err }

// Error 'error' compatible method.
func (e Error) Error() string {
	if e.err == nil {
		return "versioning: cause <nil>"
	}
	return e.err.Error()