qrList.allRecordCount = 0;
        qrList.allRecordCountRelation = null;
        qrList.queryTime = 0;
        qrList.partialResults = false;
        qrList.facetResponse = null;

        String toStringResult = qrList.toString();
        assertTrue(toStringResult.contains("QueryResponseList"));
        assertTrue(toStringResult.contains("allRecordCountRelation=null"));

        searchResponseOpt.ifPresent(searchResponse -> {
            final SearchHits searchHits = searchResponse.getHits();
            builder.allRecordCount(searchHits.getTotalHits().value());
            builder.allRecordCountRelation(searchHits.getTotalHits().relation().toString());
            builder.queryTime(searchResponse.getTook().millis());

            if (searchResponse.getTotalShards() != searchResponse.getSuccessfulShards()) {

            final String currentPageNumber = Integer.toString(data.getCurrentPageNumber());
            final String allRecordCount = Long.toString(data.getAllRecordCount());
            final String allRecordCountRelation = data.getAllRecordCountRelation();
            final String allPageCount = Integer.toString(data.getAllPageCount());
            final List<Map<String, Object>> documentItems = data.getDocumentItems();

                builder.addDocument(doc);
            }
            builder.allRecordCount(allRecordCount);
            if (allRecordCount < 10000) {
                builder.allRecordCountRelation(Relation.EQUAL_TO.toString());
            }
            return builder.build();
        }
    }

    static class TestSubSearcher extends RankFusionSearcher {

        private int mainSize;