import static org.junit.Assert.assertThat;

import java.util.Iterator;
import java.util.List;

import org.junit.Test;

/**
 * @author koichik
 *
 */
public class MultiIteratorTest {

    /**
     *
     */
    @Test
    public void test() {
        final List<String> list1 = asList("Foo", "Bar");
        final List<String> list2 = asList("Baz");

        @SuppressWarnings("unchecked")

        return channels.values()
                .stream()
                .filter(ChannelInfo::isHealthy)
                .collect(ArrayList::new, (list, item) -> list.add(item), (list1, list2) -> list1.addAll(list2));
    }

    /**
     * Select a channel for the given message
     *
     * @param message message to send
     * @return selected channel
     */

    }

    /**
     * Sets the maximum number of session IDs to include in session ID lists.
     * This controls the size limit for aggregation results when retrieving session lists.
     *
     * @param maxSessionIdsInList the maximum number of session IDs to include in lists
     */
    public void setMaxSessionIdsInList(final int maxSessionIdsInList) {

    # keywords for environment properties, same as directory name
    ; environmentList = list:{}

    # environment dispatch by lasta.env of system property?
    ; isUseLastaEnv = false

    # settings for web applications
    ; appMap = map:{
        ; fess = map:{
            ; path = ..
            ; freeGenList = list:{ env ; config ; label ; message ; mail ; template ; jsp ; doc }

    @Test
    public void testConstructorWithEmptyLists() {
        // Test constructor with empty lists
        String word = "empty lists";
        float boost = 1.0f;
        List<String> readings = Collections.emptyList();
        List<String> fields = Collections.emptyList();
        List<String> tags = Collections.emptyList();
        List<String> roles = Collections.emptyList();

    }

    /**
     * Sets the Lasta environment configuration.
     *
     * @param env the Lasta environment string
     * @return this ExecJob instance for method chaining
     */
    public ExecJob lastaEnv(final String env) {
        lastaEnv = env;
        return this;
    }

    /**
     * Adds a system property to the command list.

     */
    void deleteObject(String objectName);

    /**
     * Lists objects in storage with the given prefix.
     *
     * @param prefix the path prefix to list objects under (null or empty for root)
     * @param maxItems maximum number of items to return
     * @return list of storage items
     */
    List<StorageItem> listObjects(String prefix, int maxItems);

    /**

    /*
     * (non-Javadoc)
     *
     * @see
     * org.codelibs.fess.crawler.service.impl.UrlFilterService#addIncludeUrlFilter(java
     * .lang.String, java.util.List)
     */
    @Override
    public void addIncludeUrlFilter(final String sessionId, final List<String> urlList) {
        for (final String url : urlList) {
            dataHelper.addIncludeUrlPattern(sessionId, url);
        }
    }

    /*

    }

    /**
     * Gets the list of page numbers for pagination navigation.
     * @return The list of page numbers.
     */
    public List<Integer> getPageNumberList() {
        return pageNumberList;
    }

    /**
     * Sets the list of page numbers for pagination navigation.
     * @param pageNumberList The list of page numbers.
     */

    /** Character used to separate cache key components */
    protected static final char CACHE_KEY_SPLITTER = '\n';

    /** Cache for storing popular word lists */
    protected Cache<String, List<String>> cache;

    /** Fess configuration instance */
    protected FessConfig fessConfig;

    /**
     * Default constructor.
     */
    public PopularWordHelper() {