assertNull(searchRenderData.getFacetResponse());

        // Test with FacetResponse object created from empty Aggregations
        List<Aggregation> aggregationList = new ArrayList<>();
        Aggregations aggregations = new Aggregations(aggregationList);
        FacetResponse facetResponse = new FacetResponse(aggregations);
        searchRenderData.setFacetResponse(facetResponse);

import org.opensearch.index.query.QueryBuilders;
import org.opensearch.search.aggregations.AggregationBuilders;
import org.opensearch.search.aggregations.BucketOrder;
import org.opensearch.search.aggregations.bucket.terms.Terms;
import org.opensearch.search.aggregations.bucket.terms.Terms.Bucket;
import org.opensearch.search.aggregations.bucket.terms.TermsAggregationBuilder;

/**

                }

                builder.addDocument(docMap);
            }

            // facet
            final Aggregations aggregations = searchResponse.getAggregations();
            if (aggregations != null) {
                builder.facetResponse(new FacetResponse(aggregations));
            }

        });
        return builder.build();
    }

    /**

import java.util.Map;

import org.apache.lucene.search.TotalHits.Relation;
import org.codelibs.fess.unit.UnitFessTestCase;
import org.codelibs.fess.util.FacetResponse;
import org.opensearch.search.aggregations.Aggregations;
import org.opensearch.search.aggregations.InternalAggregations;

public class SearchResultTest extends UnitFessTestCase {

    public void test_constructor() {
        // Test with normal values

import org.codelibs.fess.mylasta.action.FessUserBean;
import org.codelibs.fess.unit.UnitFessTestCase;
import org.codelibs.fess.util.FacetResponse;
import org.opensearch.search.aggregations.Aggregations;
import org.opensearch.search.aggregations.InternalAggregations;
import org.dbflute.optional.OptionalThing;

public class RankFusionSearcherTest extends UnitFessTestCase {

 */
package org.codelibs.fess.entity;

import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.unit.UnitFessTestCase;
import org.codelibs.fess.util.ComponentUtil;
import org.opensearch.search.aggregations.BucketOrder;

public class FacetInfoTest extends UnitFessTestCase {

    private FacetInfo facetInfo;

    @Override
    public void setUp() throws Exception {
        super.setUp();

import org.opensearch.script.ScriptType;
import org.opensearch.search.SearchHit;
import org.opensearch.search.SearchHits;
import org.opensearch.search.aggregations.AggregationBuilders;
import org.opensearch.search.aggregations.bucket.filter.FilterAggregationBuilder;
import org.opensearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
import org.opensearch.search.collapse.CollapseBuilder;