return getBytes(str, UNI_ENCODING);
    }

    /**
     * Encodes a string into ASCII bytes.
     *
     * @param str the string to encode
     * @return the string as bytes (ASCII)
     */
    public static byte[] getASCIIBytes(final String str) {
        return getBytes(str, ASCII_ENCODING);
    }

    /**
     * Encodes a string into bytes using the OEM encoding from the configuration.
     *

  public static String nullToEmpty(@Nullable String string) {
    return Platform.nullToEmpty(string);
  }

  /**
   * Returns the given string if it is nonempty; {@code null} otherwise.
   *
   * @param string the string to test and possibly return
   * @return {@code string} itself if it is nonempty; {@code null} if it is empty or null
   */
  public static @Nullable String emptyToNull(@Nullable String string) {

  public static String nullToEmpty(@Nullable String string) {
    return Platform.nullToEmpty(string);
  }

  /**
   * Returns the given string if it is nonempty; {@code null} otherwise.
   *
   * @param string the string to test and possibly return
   * @return {@code string} itself if it is nonempty; {@code null} if it is empty or null
   */
  public static @Nullable String emptyToNull(@Nullable String string) {

        assertEquals("teststring", InputValidator.sanitizeForLogging("test\nstring"));
        assertEquals("teststring", InputValidator.sanitizeForLogging("test\rstring"));
        assertEquals("teststring", InputValidator.sanitizeForLogging("test\tstring"));

        // Test long string truncation
        String longString = "a".repeat(1100);

      InetAddress ipv6Addr = InetAddress.getByName(ipString);
      assertThat(InetAddresses.forString(ipString)).isEqualTo(ipv6Addr);
      assertTrue(InetAddresses.isInetAddress(ipString));
    }
  }

  public void testIPv4AddressWithScopeId() throws SocketException {
    ImmutableSet<String> ipStrings = ImmutableSet.of("1.2.3.4", "192.168.0.1");
    for (String ipString : ipStrings) {

        });
    }

    @Test
    public void testStringWithAllowedWhitespace() throws Exception {
        validator.validateString("test\tstring", 100, "test");
        validator.validateString("test\r\nstring", 100, "test");
        // Should pass without exception
    }

    @Test
    public void testValidPath() throws Exception {
        validator.validatePath("\\share\\folder\\file.txt");

  }

  private static @Nullable String convertDottedQuadToHex(String ipString) {
    int lastColon = ipString.lastIndexOf(':');
    String initialPart = ipString.substring(0, lastColon + 1);
    String dottedQuad = ipString.substring(lastColon + 1);
    byte[] quad = textToNumericFormatV4(dottedQuad);
    if (quad == null) {
      return null;
    }

        assertNotNull(hash);
        assertEquals(16, hash.length);
    }

    // Test unescape method
    @ParameterizedTest
    @CsvSource({ "'test%20string', 'test string'", "'test%25string', 'test%string'", "'test', 'test'", "'' , ''" })
    void testUnescape(String input, String expected) throws Exception {
        assertEquals(expected, NtlmPasswordAuthentication.unescape(input));
    }

    private static final String NAME_PREFIX = "searchApiTest_";
    private static final String DEFAULT_TESTDATA_PATH = "/tmp/fess-testdata";
    private static final String CRAWL_LABEL = NAME_PREFIX + "_label";
    private static final String TEST_LABEL = "tools";
    private static String fileConfigId;
    private static String labelId;
    private static String crawlLabelId;

    @BeforeAll

public class SuggestTests extends CrudTestBase {

    private static final String NAME_PREFIX = "";
    private static final String API_PATH = "/api/admin/suggest";
    private static final String LIST_ENDPOINT_SUFFIX = "";
    private static final String ITEM_ENDPOINT_SUFFIX = "";

    private static final String KEY_PROPERTY = "";

    @Override
    protected String getNamePrefix() {
        return NAME_PREFIX;
    }

    @Override