public void test_Options_getFileConfigIdList_withValidIds() {
        Crawler.Options options = new Crawler.Options();
        options.fileConfigIds = "file1,file2";

        List<String> result = options.getFileConfigIdList();
        assertNotNull(result);
        assertEquals(2, result.size());
        assertTrue(result.contains("file1"));
        assertTrue(result.contains("file2"));
    }

        /**
         * Parses the file configuration IDs string into a list.
         *
         * @return list of file configuration IDs, or null if none specified
         */
        protected List<String> getFileConfigIdList() {
            if (StringUtil.isNotBlank(fileConfigIds)) {
                final String[] values = fileConfigIds.split(",");
                return createConfigIdList(values);
            }