import org.opensearch.transport.client.Client;

import jakarta.annotation.PreDestroy;

/**
 * FesenClient is a client for OpenSearch.
 *
 * @author shinsuke
 *
 */
public class FesenClient implements Client {
    /**
     * HTTP address for OpenSearch.
     */
    public static final String HTTP_ADDRESS = "crawler.opensearch.http_address";

    /**
     * Target indices for OpenSearch.

import org.mortbay.jetty.handler.DefaultHandler;
import org.mortbay.jetty.handler.HandlerList;
import org.mortbay.jetty.handler.ResourceHandler;
import org.mortbay.log.Log;

/**
 * @author shinsuke
 *
 */
public class CrawlerWebServer {
    private int port = 8080;

    private File docRoot;

    private Server server;

    private boolean tempDocRoot = false;

    public CrawlerWebServer(final int port) {

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.crawler.util.TextUtil.TextNormalizeContext;
import org.dbflute.utflute.core.PlainTestCase;

/**
 * @author shinsuke
 * @author kaorufuzita
 */
public class TextUtilTest extends PlainTestCase {

    public void test_getContent() {
        assertEquals("", normalizeText((String) null, 100, -1, -1, false));
        assertEquals("", normalizeText("", 100, -1, -1, false));

import org.codelibs.fess.crawler.entity.ResultData;
import org.codelibs.fess.crawler.exception.CrawlerSystemException;
import org.dbflute.utflute.core.PlainTestCase;

/**
 * @author shinsuke
 *
 */
public class HtmlTransformerTest extends PlainTestCase {
    public HtmlTransformer htmlTransformer;

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        htmlTransformer = new HtmlTransformer();

mvn javadoc:javadoc
```

### Testing

The project uses JUnit 4 with embedded OpenSearch for integration testing:

```bash
# Run all tests
mvn test

# Run specific test class
mvn test -Dtest=SuggesterTest

# Run with verbose output
mvn surefire:test -Dmaven.surefire.debug=true
```

### Running Tests with Coverage

```bash

import org.codelibs.fess.crawler.Constants;

/**
 * Implementation of the {@link AccessResult} interface.
 *
 * @param <IDTYPE> the type of the identifier for the access result
 */
public class AccessResultImpl<IDTYPE> implements AccessResult<IDTYPE> {

    /**
     * Creates a new instance of AccessResultImpl.
     */
    public AccessResultImpl() {
        // NOP
    }

import static org.junit.Assert.assertTrue;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

import org.junit.Before;
import org.junit.Test;

public class ElevateWordTest {

    private ElevateWord elevateWord;

    @Before
    public void setUp() {
        // Setup for each test
    }

    @Test
    public void testConstructorWithAllParameters() {

import org.opensearch.index.IndexNotFoundException;
import org.opensearch.search.sort.SortBuilders;
import org.opensearch.search.sort.SortOrder;
import org.opensearch.transport.client.Client;

public class ESSourceReaderTest {
    static Suggester suggester;

    static OpenSearchRunner runner;

    @BeforeClass
    public static void beforeClass() throws Exception {
        runner = new OpenSearchRunner();

      replaced with your own identifying information. (Don't include
      the brackets!)  The text should be enclosed in the appropriate
      comment syntax for the file format. We also recommend that a
      file or class name and description of purpose be included on the
      same "printed page" as the copyright notice for easier
      identification within third-party archives.

   Copyright [yyyy] [name of copyright owner]

 * <li>{@link #suggestWriter} - Suggest writer.
 * <li>{@link #threadPool} - Executor service for thread pool.
 * </ul>
 */
public class SuggestIndexer {
    private final static Logger logger = LogManager.getLogger(SuggestIndexer.class);

    /** The suggest analyzer. */
    protected SuggestAnalyzer analyzer;
    /** Bad words. */
    protected String[] badWords;