String seed = "test@seed#with$special%chars";
        String[] tags = { "tag@1", "tag#2" };
        String[] roles = { "role$1", "role%2" };
        String[] fields = { "field&1", "field*2" };
        String[] excludes = { "exclude^1", "exclude(2)" };

        String result = popularWordHelper.getCacheKey(seed, tags, roles, fields, excludes);

        assertNotNull(result);

        user = new TestFessUser("testuser", roles, new String[] {}, new String[] {});
        assertArrayEquals(roles, user.getRoleNames());
    }

    public void test_getGroupNames() {
        // Test with multiple groups
        String[] groups = { "developers", "testers", "managers" };
        FessUser user = new TestFessUser("testuser", new String[] {}, groups, new String[] {});

    }

    // Test with many roles
    @Secured({ "ROLE_1", "ROLE_2", "ROLE_3", "ROLE_4", "ROLE_5", "ROLE_6", "ROLE_7", "ROLE_8", "ROLE_9", "ROLE_10" })
    static class ManyRolesClass {
    }

    public void test_manyRoles() {
        Secured secured = ManyRolesClass.class.getAnnotation(Secured.class);
        assertNotNull(secured);
        String[] roles = secured.value();
        assertEquals(10, roles.length);

        assertTrue(roleSet.contains("role1"));

        encrypted = false;
        value = "role1,role2";
        roleSet = decodedRoleList(roleQueryHelperImpl, value, encrypted);
        assertEquals(2, roleSet.size());
        assertTrue(roleSet.contains("role1"));
        assertTrue(roleSet.contains("role2"));

        encrypted = false;
        value = "role1,role2,role3";

        final String[] roles1 = SuggestUtil.parseQuery(queryString, roleFieldName);
        final String[] roles2 = filterQueryString == null ? new String[0] : SuggestUtil.parseQuery(filterQueryString, roleFieldName);
        final String[] roles = new String[roles1.length + roles2.length];

        if (roles1.length > 0) {
            System.arraycopy(roles1, 0, roles, 0, roles1.length);
        }

                // Return roles with duplicates
                String[] roles = new String[] { "role1", "role2", "role1", "Uuser", "role2" };
                callback.accept(roles);
                return roles;
            }

            @Override
            public String normalizePermissionName(String name) {

        List<String> fields = Arrays.asList("field1", "field2", "field3");
        List<String> tags = Arrays.asList("tag1", "tag2");
        List<String> roles = Arrays.asList("role1", "role2", "role3");

        elevateWord = new ElevateWord(word, boost, readings, fields, tags, roles);
        SuggestItem suggestItem = elevateWord.toSuggestItem();

        assertNotNull(suggestItem);
        assertEquals(word, suggestItem.getText());

                final String[] roles = values[1].split(roleSeparator);
                for (final String role : roles) {
                    if (StringUtil.isNotEmpty(role)) {
                        roleSet.add(role);
                    }
                }
            }
        } else {
            final String[] roles = rolesStr.split(roleSeparator);
            for (final String role : roles) {

        String[] fields = { "field1", "field2" };
        String[] tags = { "tag1", "tag2" };
        String[] roles = { "role1", "role2" };
        String[] languages = { "en", "ja" };
        SuggestItem.Kind kind = SuggestItem.Kind.QUERY;

        SuggestItem item = new SuggestItem(text, readings, fields, 100L, 50L, 1.5f, tags, roles, languages, kind);

        assertNotNull(item);

        readings[1] = new String[] { "enjin", "fuga" };
        String[] tags = new String[] { "tag1", "tag2" };
        String[] roles = new String[] { SuggestConstants.DEFAULT_ROLE, "role1", "role2", "role3" };
        queryItems[0] = new SuggestItem(new String[] { "検索", "エンジン" }, readings, new String[] { "content" }, 1, 0, -1, tags, roles, null,
                SuggestItem.Kind.DOCUMENT);

        String[][] readings2 = new String[2][];