// negative size -> reject
        when(smbFile.length()).thenReturn(-1L);
        assertFalse(filter.accept(smbFile), "Negative size should be rejected");
        verify(smbFile, times(1)).length();

        // zero size -> reject
        reset(smbFile);
        when(smbFile.length()).thenReturn(0L);
        assertFalse(filter.accept(smbFile), "Zero size should be rejected");

        when(mockContext.getConfig()).thenReturn(mockConfig);
        when(mockConfig.isUseMultiChannel()).thenReturn(true);
        when(mockConfig.getMaxChannels()).thenReturn(4);
        when(mockConfig.getChannelBindingPolicy()).thenReturn(1); // preferred
        when(mockConfig.getLoadBalancingStrategy()).thenReturn("adaptive");
        when(mockConfig.getChannelHealthCheckInterval()).thenReturn(10);

        // Given
        when(mockBasicFileInfo.getAttributes()).thenReturn(TEST_ATTRIBUTES);
        when(mockBasicFileInfo.getCreateTime()).thenReturn(TEST_CREATE_TIME);
        when(mockBasicFileInfo.getLastWriteTime()).thenReturn(TEST_LAST_WRITE_TIME);
        when(mockBasicFileInfo.getLastAccessTime()).thenReturn(TEST_LAST_ACCESS_TIME);
        when(mockBasicFileInfo.getSize()).thenReturn(1024L);

        void shouldBeApplicableWhenModelOptionTrue() {
            UpgradeOptions options = mock(UpgradeOptions.class);
            when(options.model()).thenReturn(Optional.of(true));
            when(options.all()).thenReturn(Optional.empty());

            UpgradeContext context = createMockContext(options);

        });
    }

    @Test
    @DisplayName("Should unwrap to correct type")
    void testUnwrap() {
        // Given
        when(mockCredentials.unwrap(Credentials.class)).thenReturn(mockCredentials);

        // When
        Credentials unwrapped = mockCredentials.unwrap(Credentials.class);

        // Then
        assertSame(mockCredentials, unwrapped);

            Info mockInfo = mock(Info.class);

            // Set up mock behavior
            when(mockInfo.getAttributes()).thenReturn(0x20);
            when(mockInfo.getSize()).thenReturn(1024L);
            when(mockInfo.getCreateTime()).thenReturn(1000000L);
            when(mockInfo.getLastWriteTime()).thenReturn(2000000L);

            // Use the mock
            response.info = mockInfo;

            // Verify interactions

        when(mockEntry.getName()).thenReturn("file.txt");
        when(mockEntry.getType()).thenReturn(1);
        when(mockEntry.getAttributes()).thenReturn(0x20);
        when(mockEntry.createTime()).thenReturn(100L);
        when(mockEntry.lastModified()).thenReturn(200L);
        when(mockEntry.lastAccess()).thenReturn(300L);
        when(mockEntry.length()).thenReturn(12345L);

            ACE directAce = mock(ACE.class);
            when(inheritedAce.isInherited()).thenReturn(true);
            when(directAce.isInherited()).thenReturn(false);

            assertTrue(inheritedAce.isInherited());
            assertFalse(directAce.isInherited());
            verify(inheritedAce).isInherited();
            verify(directAce).isInherited();
        }

        @Test

        when(dummy.getHostAddress()).thenReturn("192.0.2.1");
        UniAddress ua = new UniAddress(dummy);
        assertEquals("192.0.2.1", ua.getHostAddress(), "should forward hostAddress to underlying InetAddress");
    }

    @Test
    void toStringDelegatesToUnderlyingAddress() {
        InetAddress dummy = mock(InetAddress.class);
        when(dummy.toString()).thenReturn("mockedInet");

        Mockito.when(mock.getAttributes()).thenReturn(7);
        Mockito.when(mock.getCreateTime()).thenReturn(11L);
        Mockito.when(mock.getLastWriteTime()).thenReturn(13L);
        Mockito.when(mock.getLastAccessTime()).thenReturn(17L);
        Mockito.when(mock.getSize()).thenReturn(19L);

        // Act: invoke each method once
        int attributes = mock.getAttributes();