assertEquals(readings, elevateWord.getReadings());
        assertEquals(fields, elevateWord.getFields());
        assertEquals(tags, elevateWord.getTags());
        assertNotNull(elevateWord.getRoles());
        assertTrue(elevateWord.getRoles().isEmpty());
    }

    @Test
    public void testConstructorWithNullTagsAndRoles() {
        // Test constructor with both null tags and roles
        String word = "test word";

        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() {
        ElevateWord elevateWord1 =

                this.getBoost(), this.getTags().toArray(new String[this.getTags().size()]),
                this.getRoles().toArray(new String[this.getRoles().size()]), null, SuggestItem.Kind.USER);
    }

            return rules.remove(rule);
        }

        @Override
        public boolean hasRule(Rule rule) {
            return rules.contains(rule);
        }

        public List<Rule> getRules() {
            return new ArrayList<>(rules);
        }

        public void clearRules() {
            rules.clear();
        }
    }

    /**
     * Test ResponseProcessor implementation

        assertNotNull(item.getFields());
        assertEquals(0, item.getFields().length);
        assertNotNull(item.getTags());
        assertEquals(0, item.getTags().length);
        assertNotNull(item.getRoles());
        assertEquals(1, item.getRoles().length); // Default role is added
        assertNotNull(item.getLanguages());
        assertEquals(0, item.getLanguages().length);
        assertNotNull(item.getKinds());

        }

        public int getGetRuleCallCount() {
            return getRuleCallCount;
        }

        public void clearRules() {
            rules.clear();
        }

        public List<Rule> getRules() {
            return new ArrayList<>(rules);
        }
    }

    /**
     * Thread-safe implementation of RuleManager
     */
    public static class ThreadSafeRuleManager implements RuleManager {

        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();
        // chain.addConverter(new KatakanaConverter());

        } catch (final Exception e) {
            throw new ExtractException("Failed to extract data.", e);
        } finally {
            if (dfos != null && !dfos.isInMemory()) {
                final File file = dfos.getFile();
                try {
                    Files.delete(file.toPath());
                } catch (final IOException e) {
                    logger.warn("Failed to delete {}.", file.getAbsolutePath(), e);

        }
        mergedItem.languages = langList.toArray(new String[langList.size()]);

        final List<String> roleList = new ArrayList<>(item1.getRoles().length + item2.getRoles().length);
        Collections.addAll(roleList, item1.getRoles());
        for (final String role : item2.getRoles()) {
            if (!roleList.contains(role)) {
                roleList.add(role);
            }
        }

        if (dfos.isInMemory()) {
            return new ByteArrayInputStream(dfos.getData());
        }
        return new BufferedInputStream(new FileInputStream(dfos.getFile()));
    }

    /**
     * Returns a content from a writer.
     *
     * @param out A content writer.
     * @param encoding An encoding.
     * @param normalizeText If true, normalize a text.