public String fileConfigIds;

        /** Comma-separated list of data store configuration IDs to crawl. */
        @Option(name = "-d", aliases = "--dataConfigIds", metaVar = "dataConfigIds", usage = "Data Config IDs")
        public String dataConfigIds;

        /** Path to properties file for system configuration overrides. */

    }

    // Test dataConfigIds setter
    public void test_dataConfigIds() {
        String[] testIds = { "data1", "data2", "data3", "data4" };
        CrawlJob result = crawlJob.dataConfigIds(testIds);
        assertArrayEquals(testIds, crawlJob.dataConfigIds);
        assertSame(crawlJob, result);

        // Test with null
        result = crawlJob.dataConfigIds(null);

        assertTrue(result.contains("single"));
    }

    public void test_Options_getDataConfigIdList_withValidIds() {
        Crawler.Options options = new Crawler.Options();
        options.dataConfigIds = "data1,data2,data3,data4";

        List<String> result = options.getDataConfigIdList();
        assertNotNull(result);
        assertEquals(4, result.size());
        assertTrue(result.contains("data1"));