"Expected invalid list operation message, was: " + ex.getMessage());
            }
        }
    }

    @Nested
    @DisplayName("Master browser enumeration tests")
    class MasterBrowserEnumerationTests {

        @Test
        @DisplayName("doEnum with empty host throws SmbUnsupportedOperationException when master browser not found")

                        set.add(e);
                    }
                }
            } catch (final IOException ioe) {
                log.debug("DS enumeration failed", ioe);
            }
        }

        final SmbTreeConnection treeConn = SmbTreeConnection.create(tc);
        try (SmbTreeHandleImpl th = treeConn.connectHost(locator, locator.getServerWithDfs());

        // Step 4: Initially no cached listing
        assertNull(directoryLeaseManager.getCachedDirectoryListing(directoryPath));

        // Step 5: Simulate directory enumeration and update cache
        List<SmbFile> files = Arrays.asList(mockFile1, mockFile2);
        directoryLeaseManager.updateDirectoryCache(directoryPath, files);

        // Step 6: Verify cache is complete and populated

- [ ] Implement directory metadata caching
- [ ] Add directory change notification integration
- [ ] Create parent-child lease relationships
- [ ] Implement directory lease break handling
- [ ] Add directory enumeration caching

#### 4.3 Integration Points
- Extend `SmbFile` for directory lease support
- Modify directory listing operations for caching
- Update change notification handling

---

        // Act: constructing the iterator must not throw and results in empty iterator
        DirFileEntryEnumIterator2 it = new DirFileEntryEnumIterator2(tree, parent, "*", null, 0);

        // Assert: enumeration is empty and close produced no extra close call (no fileId opened)
        assertFalse(it.hasNext(), "Empty listing should produce no elements");
        it.close();

         *
         * @return the new reference count after decrementing
         */
        public int decrement() {
            return count.decrementAndGet();
        }
    }

    /**
     * Enumeration of predefined statistics actions that can be recorded
     * during crawler operations. Each action represents a specific event
     * or milestone in the crawling process.
     */
    public enum StatsAction {

    }
    
    private void discoverLocalInterfaces() {
        localInterfaces.clear();
        
        try {
            Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
            
            while (interfaces.hasMoreElements()) {
                NetworkInterface ni = interfaces.nextElement();
                

            // Then
            assertTrue(isDirectory, "Should support SMB directory detection");
            assertNotNull(children, "Should support SMB directory enumeration");
        }
    }

    @Nested
    @DisplayName("Resource Management Tests")
    class ResourceManagementTests {

        @Test
        @DisplayName("close operation should work correctly")

import java.net.Proxy;
import java.net.Proxy.Type;
import java.net.SocketAddress;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Date;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;

         */
        public int prefmaxlen;
        /**
         * The total number of entries.
         */
        public int totalentries;
        /**
         * The resume handle for enumeration.
         */
        public int resume_handle;

        /**
         * Constructs a ShareEnumAll request.
         * @param servername the server name
         * @param level the information level