checkTransitiveClosure(undirectedGraph, expectedClosure);
  }

  @Test
  public void transpose_undirectedGraph() {
    MutableGraph<Integer> undirectedGraph = GraphBuilder.undirected().build();
    undirectedGraph.putEdge(N1, N2);

    assertThat(transpose(undirectedGraph)).isSameInstanceAs(undirectedGraph);
  }

  @Test
  public void transpose_directedGraph() {

    final List<Object> overriddenAndAnnotatedInSubclassEvents = new ArrayList<>();

    public void neitherOverriddenNorAnnotated(Object o) {
      neitherOverriddenNorAnnotatedEvents.add(o);
    }

    public void overriddenInSubclassNowhereAnnotated(Object o) {
      overriddenInSubclassNowhereAnnotatedEvents.add(o);
    }

    public void overriddenAndAnnotatedInSubclass(Object o) {
      overriddenAndAnnotatedInSubclassEvents.add(o);

 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *

/**
 * Client for interacting with OpenSearch search engine.
 * Provides document indexing, searching, and administrative operations.
 */
public class SearchEngineClient implements Client {

    /**
     * Default constructor.
     */
    public SearchEngineClient() {
        // Default constructor
    }

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

     * @return The text.
     */
    public String getText() {
        return text;
    }

    /**
     * Returns the readings of the suggest item.
     * @return The readings.
     */
    public String[][] getReadings() {
        return readings;
    }

    /**
     * Returns the tags of the suggest item.
     * @return The tags.
     */
    public String[] getTags() {
        return tags;

 * @since 1.0
 */
@GwtIncompatible
@J2ktIncompatible
public abstract class AbstractService implements Service {
  private static final ListenerCallQueue.Event<Listener> STARTING_EVENT =
      new ListenerCallQueue.Event<Listener>() {
        @Override
        public void call(Listener listener) {
          listener.starting();
        }

        @Override
        public String toString() {
          return "starting()";
        }

     */
    public boolean isCompleted() {
        return completed;
    }

    /**
     * Mark request as completed
     */
    public void markCompleted() {
        this.completed = true;
    }

    /**
     * Mark request as failed with error
     *
     * @param error exception that caused the failure
     */
    public void markFailed(Exception error) {

import org.opensearch.search.aggregations.Aggregations;

public class SearchRenderDataTest extends UnitFessTestCase {

    private SearchRenderData searchRenderData;

    @Override
    public void setUp() throws Exception {
        super.setUp();
        searchRenderData = new SearchRenderData();
    }

    public void test_constructor() {
        assertNotNull(searchRenderData);

    public void write(char[] cbuf, int off, int len) {
      checkPositionIndexes(off, off + len, cbuf.length);
    }

    @Override
    public void write(String str) {
      checkNotNull(str);
    }

    @Override
    public void write(String str, int off, int len) {
      checkPositionIndexes(off, off + len, str.length());
    }

    @Override
    public Writer append(@Nullable CharSequence csq) {

    }

    @Override
    public Iterator<T> iterator() {
      return Iterators.unmodifiableIterator(iterable.iterator());
    }

    @Override
    public void forEach(Consumer<? super T> action) {
      iterable.forEach(action);
    }

    @SuppressWarnings("unchecked") // safe upcast, assuming no one has a crazy Spliterator subclass
    @Override
    public Spliterator<T> spliterator() {