- `CurlRequestTest`: Tests for request builder, headers, parameters, body content, SSL, proxies, timeouts
- `CurlResponseTest`: Tests for response handling, status codes, content retrieval, resource management
- `CurlExceptionTest`: Tests for exception handling and error scenarios

 * This class provides functionality to read input stream data asynchronously,
 * optionally process each line with a callback function, and maintain a circular buffer
 * of recent lines for retrieval.
 */
public class InputStreamThread extends Thread {
    /** Logger instance for this class */
    private static final Logger logger = LogManager.getLogger(InputStreamThread.class);

import jakarta.annotation.Resource;

/**
 * Service class for managing file configuration operations.
 * This service provides CRUD operations for file crawler configurations,
 * including retrieval, storage, deletion, and search functionality.
 * It handles pagination and integrates with the file authentication system.
 */
public class FileConfigService extends FessAppService {

    /**

/**
 * Helper class for managing crawling information and statistics.
 * Provides functionality to track crawling sessions, manage document expiration,
 * and handle crawling information storage and retrieval.
 */
public class CrawlingInfoHelper {

    /**
     * Creates a new instance of CrawlingInfoHelper.
     */
    public CrawlingInfoHelper() {
        // Default constructor
    }

import jakarta.annotation.Resource;

/**
 * Service class for managing character mapping operations.
 * <p>
 * This service handles character mapping management including CRUD operations
 * and list retrieval. Character mappings are used for text normalization
 * and character substitution during document processing and search operations.
 * </p>
 */
public class CharMappingService {

    /**

    }

    // Capacity behavior: when full, additional releases are dropped; only cached buffers are returned
    @Test
    @DisplayName("Cache capacity respected: extra releases dropped; retrieval order by first free slot")
    void cacheCapacityAndRetrievalOrder() {
        BufferCacheImpl impl = new BufferCacheImpl(2, 3);
        byte[] a = new byte[1];
        byte[] c = new byte[2];

 * query building, response formatting, and search log management.
 *
 * Key features:
 * - Document search with pagination and faceting
 * - Scroll search for large result sets
 * - Document retrieval by ID
 * - Bulk document updates
 * - Search parameter serialization/deserialization for cookies
 * - Integration with search engines and logging systems
 */
public class SearchHelper {

        when(dataHelper.getIncludeUrlPatternList(sessionId)).thenReturn(mockIncludePatterns);
        when(dataHelper.getExcludeUrlPatternList(sessionId)).thenReturn(mockExcludePatterns);

        // Execute retrieval
        List<Pattern> includePatterns = service.getIncludeUrlPatternList(sessionId);
        List<Pattern> excludePatterns = service.getExcludeUrlPatternList(sessionId);

        // Verify

 * on SMB (Server Message Block) shares. It extends {@link AbstractCrawlerClient} and utilizes the JCIFS library
 * to interact with SMB resources.
 *
 * <p>
 * This client supports authentication, content retrieval, and metadata extraction from SMB files.
 * It handles file access, directory listing, and access control entries (ACEs) processing.
 * </p>
 *
 * <p>
 * The class provides methods to:
 * </p>
 * <ul>

        }
    }

    @Nested
    class AttributeAndStateTests {

        @Test
        public void testGetTypeForFile() throws Exception {
            // Mocking underlying connection and info retrieval is complex.
            // This test focuses on the logic based on the URL structure.
            SmbFile file = new SmbFile("smb1://server/share/file.txt");