assertNotNull(key);
    assertTrue(dirManager.canCacheDirectoryListing("/test/dir"));
    
    // Test cache operations
    List<SmbFile> files = Arrays.asList(
        createMockSmbFile("/test/dir/file1.txt"),
        createMockSmbFile("/test/dir/file2.txt")
    );
    
    dirManager.updateDirectoryCache("/test/dir", files);
    
    List<SmbFile> cached = dirManager.getCachedDirectoryListing("/test/dir");

            assertTrue(hiddenShare.isHidden());
        }
    }

    // Helper method to create a mock SmbFile for more advanced tests if needed
    private SmbFile createMockSmbFile(String url, NtlmPasswordAuthentication auth) throws MalformedURLException {
        // This is complex due to the class structure. A better approach would be