public class SuggestItemSerializerTest {

    @Test
    public void testToSource_basicFields() {
        String[] text = { "test text" };
        String[][] readings = { { "reading1" } };
        String[] fields = { "field1" };
        String[] tags = { "tag1" };
        String[] roles = { "role1" };
        String[] languages = { "en" };
        long docFreq = 10L;
        long queryFreq = 5L;
        float userBoost = 1.5f;

        assertTrue(roleSet.contains("role2"));
        assertTrue(roleSet.contains("role3"));
    }

    @Test
    public void testMerge_fields() {
        SuggestItem item1 = createItemWithFields("text", "field1", "field2");
        SuggestItem item2 = createItemWithFields("text", "field2", "field3");

        SuggestItem merged = SuggestItemMerger.merge(item1, item2);

        String[] fields = merged.getFields();

    @Test
    public void test_convertBooleanQuery_withShouldClause() {
        BooleanQuery.Builder boolQueryBuilder = new BooleanQuery.Builder();
        TermQuery termQuery1 = new TermQuery(new Term("field1", "value1"));
        TermQuery termQuery2 = new TermQuery(new Term("field2", "value2"));
        boolQueryBuilder.add(termQuery1, BooleanClause.Occur.SHOULD);
        boolQueryBuilder.add(termQuery2, BooleanClause.Occur.SHOULD);

        facetQueryView.addQuery("label1", "field1:value1");
        facetQueryView.addQuery("label2", "field2:value2");

        facetQueryView.init();

        // Should not modify query map when no filetype queries present
        assertEquals(2, facetQueryView.getQueryMap().size());
        assertEquals("field1:value1", facetQueryView.getQueryMap().get("label1"));

    // Test addQuery with existing query
    @Test
    public void test_addQuery_withExistingQuery() {
        queryContext = new QueryContext("test", false);
        QueryBuilder initialQuery = QueryBuilders.termQuery("field1", "value1");
        queryContext.setQueryBuilder(initialQuery);

        queryContext.addQuery(boolQuery -> {
            boolQuery.must(QueryBuilders.termQuery("field2", "value2"));
        });

        // Test adding conditions
        generator = new TestThumbnailGenerator();

        // Test adding single condition
        generator.addCondition("field1", "value1");

        // Test adding multiple conditions for same field
        generator.addCondition("field1", "value2");

        // Test adding conditions for different fields
        generator.addCondition("field2", "pattern.*");

        QueryBuilder rolesFilter = request.buildFilterQuery("roles", Arrays.asList("role1"));
        QueryBuilder fieldsFilter = request.buildFilterQuery("fields", Arrays.asList("field1"));

        assertTrue("Tags filter should contain 'tags'", tagsFilter.toString().contains("tags"));
        assertTrue("Roles filter should contain 'roles'", rolesFilter.toString().contains("roles"));

    }

    // Test annotation hashCode and equals behavior
    @Test
    public void test_annotationHashCodeAndEquals() throws Exception {
        final Field field1 = UriTypeTest.class.getDeclaredField("testFieldWeb");
        final UriType annotation1 = field1.getAnnotation(UriType.class);

        final Field field2 = UriTypeTest.class.getDeclaredField("testFieldFile");

        source.put(FieldNames.DOC_FREQ, 50L);
        source.put(FieldNames.USER_BOOST, 2.0f);
        source.put(FieldNames.READING_PREFIX + "0", Arrays.asList("reading1"));
        source.put(FieldNames.FIELDS, Arrays.asList("field1"));
        source.put(FieldNames.TAGS, Arrays.asList("tag1"));
        source.put(FieldNames.ROLES, Arrays.asList("role1"));
        source.put(FieldNames.LANGUAGES, Arrays.asList("en"));

        PopularWordsRequest request = new PopularWordsRequest();
        request.setIndex("test-index");
        request.addTag("tag1");
        request.addRole("role1");
        request.addField("field1");
        request.addLanguage("ja");
        request.addExcludeWord("exclude");
        request.setQueryFreqThreshold(5);

        assertNotNull(request.buildQuery());
    }

    @Test