assertEquals(elevateWord3.getReadings().get(0), settings.elevateWord().get()[2].getReadings().get(0));
        assertEquals(elevateWord3.getTags().get(0), settings.elevateWord().get()[2].getTags().get(0));
        assertEquals(elevateWord3.getRoles().get(0), settings.elevateWord().get()[2].getRoles().get(0));
    }

    @Test
    public void test_delete() {

        mergedItem.setReadings(mergedReadings);

        // Merge arrays maintaining uniqueness
        mergedItem.setFields(mergeStringArrays(item1.getFields(), item2.getFields()));
        mergedItem.setTags(mergeStringArrays(item1.getTags(), item2.getTags()));
        mergedItem.setLanguages(mergeStringArrays(item1.getLanguages(), item2.getLanguages()));
        mergedItem.setRoles(mergeStringArrays(item1.getRoles(), item2.getRoles()));

        assertTrue(items.size() > 0);
        SuggestItem item = items.get(0);
        assertTrue("Should have multiple tags", item.getTags().length >= 2);
    }

    @Test
    public void test_parseQueryLog_withMultipleRoles() throws Exception {
        QueryLog queryLog = new QueryLog("content:test AND role:admin AND role:user", null);

     */
    public String[][] getReadings() {
        return readings;
    }

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

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

                    buf.append(",\"labels\":[");
                    for (int i = 0; i < item.getTags().length; i++) {
                        if (i > 0) {
                            buf.append(',');
                        }
                        buf.append('\"').append(StringEscapeUtils.escapeJson(item.getTags()[i])).append('\"');
                    }
                    buf.append(']');

            map.put(FieldNames.READING_PREFIX + i, values);
        }

        map.put(FieldNames.FIELDS, item.getFields());
        map.put(FieldNames.TAGS, item.getTags());
        map.put(FieldNames.ROLES, item.getRoles());
        map.put(FieldNames.LANGUAGES, item.getLanguages());
        map.put(FieldNames.KINDS, Stream.of(item.getKinds()).map(SuggestItem.Kind::toString).toArray());

                createDefaultReadingConverter(), createDefaultNormalizer());
        SuggestItem item = items.get(0);
        assertEquals("検索エンジン", item.getText());
        assertEquals("tag1", item.getTags()[0]);
        assertEquals("role1", item.getRoles()[0]);
    }

    protected ReadingConverter createDefaultReadingConverter() throws IOException {
        ReadingConverterChain chain = new ReadingConverterChain();

        // Overlapping values should not be duplicated
        assertTrue("Should have tag1", Arrays.asList(merged.getTags()).contains("tag1"));
        assertTrue("Should have tag3", Arrays.asList(merged.getTags()).contains("tag3"));
        // Check for no duplicates
        long tag2Count = Arrays.stream(merged.getTags()).filter(t -> t.equals("tag2")).count();
        assertEquals("tag2 should appear only once", 1, tag2Count);
    }

        final ElevateWord normalized = new ElevateWord(normalizedWord, elevateWord.getBoost(), normalizedReadings, elevateWord.getFields(),
                elevateWord.getTags(), elevateWord.getRoles());
        settings.elevateWord().add(normalized);
        if (apply) {
            final SuggestItem item = normalized.toSuggestItem();

        source.put(ELEVATE_WORD_READING, elevateWord.getReadings());
        source.put(ELEVATE_WORD_FIELDS, elevateWord.getFields());
        source.put(ELEVATE_WORD_TAGS, elevateWord.getTags());
        source.put(ELEVATE_WORD_ROLES, elevateWord.getRoles());
        source.put(FieldNames.TIMESTAMP, DateTimeFormatter.ISO_INSTANT.format(ZonedDateTime.now()));