List<Map<String, Object>> moreDocs = new ArrayList<>();
        Map<String, Object> doc3 = new HashMap<>();
        doc3.put("title", "Doc3");
        moreDocs.add(doc3);

        assertTrue(qrList.addAll(1, moreDocs));
        assertEquals(3, qrList.size());
        assertEquals(doc1, qrList.get(0));
        assertEquals(doc3, qrList.get(1));
        assertEquals(doc2, qrList.get(2));
    }

    @Test

import org.junit.jupiter.api.Test;

public class RelevanceEvaluationResultTest extends UnitFessTestCase {

    @Test
    public void test_withRelevantDocs() {
        List<String> docIds = Arrays.asList("doc1", "doc2", "doc3");
        List<Integer> indexes = Arrays.asList(1, 2, 3);
        RelevanceEvaluationResult result = RelevanceEvaluationResult.withRelevantDocs(docIds, indexes);

        assertTrue(result.isHasRelevantResults());

        try (RankFusionProcessor processor = new RankFusionProcessor()) {
            processor.setSearcher(new TestSearcherWithFixedIds("doc1", "doc2", "doc3"));
            processor.register(new TestSearcherWithFixedIds("doc2", "doc3", "doc4")); // Some duplicates
            processor.init();