assertEquals(newStr, xml);
        }
    }

    @Test
    void testNamespaceInXmlNode() throws XMLStreamException {
        String xml = "<project xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"\n"
                + "         xmlns=\"http://maven.apache.org/POM/4.0.0\"\n"
                + "         xsi:schemaLocation=\"http://maven.apache.org/POM/4.0.0 http://maven.apache.org/POM/4.0.0\">\n"

        } catch (final Exception e) {
            throw new SuggestIndexException("Failed to write items[" + items.length + "] to " + index, e);
        }
    }

    /**
     * Gets the SuggestWriter instance.
     *
     * @return The suggest writer
     */
    public SuggestWriter getSuggestWriter() {
        return suggestWriter;
    }

    @BeforeEach
    void setUp() {
    }

    @Nested
    @DisplayName("Constructor Tests")
    class ConstructorTests {

        @Test
        @DisplayName("Should create instance with source key and single chunk")
        void testConstructorWithSingleChunk() {
            // Given
            byte[] sourceKey = new byte[SOURCE_KEY_SIZE];
            Arrays.fill(sourceKey, (byte) 0xAB);

     */
    public Date getTimestamp() {
        return timestamp;
    }

    /**
     * Sets the dictionary manager for this file and returns this instance.
     *
     * @param dictionaryManager the dictionary manager to set
     * @return this dictionary file instance for method chaining
     */
    public DictionaryFile<T> manager(final DictionaryManager dictionaryManager) {
        this.dictionaryManager = dictionaryManager;

  /** Creates an empty {@code CompactLinkedHashMap} instance. */
  public static <K extends @Nullable Object, V extends @Nullable Object>
      CompactLinkedHashMap<K, V> create() {
    return new CompactLinkedHashMap<>();
  }

  /**
   * Creates a {@code CompactLinkedHashMap} instance, with a high enough "initial capacity" that it

 *
 * Character mapping files contain mapping rules in the format:
 * input1,input2,... => output
 */
public class CharMappingFile extends DictionaryFile<CharMappingItem> {
    /** Logger instance for this class. */
    private static final Logger logger = LogManager.getLogger(CharMappingFile.class);

    /** Type identifier for character mapping dictionaries. */
    private static final String MAPPING = "mapping";

 * 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
    }

    private static final Logger logger = LogManager.getLogger(CrawlingInfoHelper.class);

    /**

    @Mock
    private MessageDigest mockMd5;

    @BeforeEach
    void setUp() throws NoSuchAlgorithmException {
        // Mock Crypto.getMD5() to return our mockMd5 instance
        // This requires Mockito 3.4.0+ for MockedStatic
        // For simplicity, we'll assume Crypto.getMD5() is static and mock it.
        // If it's not static, we'd need to inject it or mock the class that provides it.

   * reloading or bulk loading. This is most useful when you can pass a lambda expression. Otherwise
   * it is useful mostly when you already have an existing function instance.
   *
   * <p>The returned object is serializable if {@code function} is serializable.
   *
   * @param function the function to be used for loading values; must never return {@code null}

        assertTrue(Modifier.isPrivate(constructor.getModifiers()), "Constructor should be private");

        // Force accessibility and create instance to achieve coverage
        constructor.setAccessible(true);
        assertNotNull(constructor.newInstance(), "Should be able to create instance via reflection");
    }

    @Nested
    @DisplayName("Header Constants")
    class HeaderConstants {

        @Test