assertNotNull(result);
        assertEquals(2, result.size());
        assertTrue(result.contains("file1"));
        assertTrue(result.contains("file2"));
    }

    public void test_Options_getFileConfigIdList_withSingleId() {
        Crawler.Options options = new Crawler.Options();
        options.fileConfigIds = "single";

        List<String> result = options.getFileConfigIdList();
        assertNotNull(result);