assertFalse(activeStatuses.contains(CrawlerStatus.DONE));

        // Create empty EnumSet
        EnumSet<CrawlerStatus> emptySet = EnumSet.noneOf(CrawlerStatus.class);
        assertEquals(0, emptySet.size());

        // Create EnumSet with range
        EnumSet<CrawlerStatus> rangeSet = EnumSet.range(CrawlerStatus.INITIALIZING, CrawlerStatus.RUNNING);

        // Test empty text
        String emptyText = "";
        String emptyId = SuggestUtil.createSuggestTextId(emptyText);
        assertNotNull(emptyId);
        assertEquals(Base64.getEncoder().encodeToString(emptyText.getBytes(CoreLibConstants.CHARSET_UTF_8)), emptyId);

        // Test special characters
        String specialText = "テスト@#$%^&*()";