String seed = "test_seed";
        String[] tags1 = { "tag1", "tag2" };
        String[] tags2 = { "tag2", "tag1" };
        String[] roles = { "role1" };
        String[] fields = { "field1" };
        String[] excludes = { "exclude1" };

        String result1 = popularWordHelper.getCacheKey(seed, tags1, roles, fields, excludes);

        List<String> words = Arrays.asList("tag1", "tag2", "tag3");
        QueryBuilder result = request.buildFilterQuery("tags", words);
        assertNotNull(result);
        assertTrue(result instanceof BoolQueryBuilder);

        String queryString = result.toString();
        assertTrue("Should contain tag1", queryString.contains("tag1"));
        assertTrue("Should contain tag2", queryString.contains("tag2"));

		t.Fatalf("Should find 3 tags")
	}

	DB.Model(&blog2).Association("SharedTags").Find(&tags)
	if !compareTags(tags, []string{"tag1", "tag2", "tag3", "tag4"}) {
		t.Fatalf("Should find 3 tags")
	}

	// Replace
	tag5 := &Tag{Locale: "ZH", Value: "tag5"}
	tag6 := &Tag{Locale: "ZH", Value: "tag6"}
	DB.Model(&blog2).Association("SharedTags").Replace(tag5, tag6)
	var tags2 []Tag

        String[][] readings = new String[1][];
        readings[0] = new String[] { "test" };
        SuggestItem item = new SuggestItem(new String[] { "テスト" }, readings, new String[] { "content" }, 1, 0, -1, new String[] { "tag1" },
                new String[] { SuggestConstants.DEFAULT_ROLE }, null, SuggestItem.Kind.DOCUMENT);
        suggester.indexer().index(item);
        suggester.refresh();

                new String[] { SuggestConstants.DEFAULT_ROLE }, null, SuggestItem.Kind.DOCUMENT);
        SuggestItem item2 = new SuggestItem(new String[] { "テスト" }, readings, new String[] { "content" }, 2, 0, -1, new String[] { "tag1" },
                new String[] { SuggestConstants.DEFAULT_ROLE }, null, SuggestItem.Kind.DOCUMENT);

        PrunedTag tag1 = new PrunedTag("div");
        tag1.setId("test");
        tag1.setCss("highlight");
        tag1.setAttr("data-value", "123");

        PrunedTag tag2 = new PrunedTag("div");
        tag2.setId("test");
        tag2.setCss("highlight");
        tag2.setAttr("data-value", "123");

        assertTrue(tag1.equals(tag2));
        assertTrue(tag2.equals(tag1));

        String searchWord = "検索 エンジン";
        String[] fields = new String[] { "content" };
        String[] tags = new String[] { "tag1" };
        String[] roles = new String[] { SuggestConstants.DEFAULT_ROLE };

        SuggestIndexResponse response = suggester.indexer().indexFromSearchWord(searchWord, fields, tags, roles, 1, null);

        assertNotNull(response);
        assertEquals(1, response.getNumberOfInputDocs());

                new String[] { SuggestConstants.DEFAULT_ROLE }, null, SuggestItem.Kind.DOCUMENT);

        // Bad item
        String[][] readings2 = new String[1][];
        readings2[0] = new String[] { "bad" };
        items[1] = new SuggestItem(new String[] { "bad" }, readings2, new String[] { "content" }, 1, 0, -1, new String[] { "tag1" },

        Map<String, Object> document = new HashMap<>();
        document.put("content", "test");
        List<String> tags = new ArrayList<>();
        tags.add("tag1");
        tags.add("tag2");
        document.put("label", tags);

        List<SuggestItem> items = parser.parseDocument(document, supportedFields, tagFieldNames, roleFieldName, "lang",

     */
    public void setQuery(final String query) {
        this.query = query;
    }

    /**
     * Adds a tag to filter by.
     * @param tag The tag.
     */
    public void addTag(final String tag) {
        tags.add(tag);
    }

    /**
     * Adds a role to filter by.
     * @param role The role.
     */
    public void addRole(final String role) {