assertFalse(result1);
        assertFalse(result2);
        assertFalse(result3);
        assertTrue(result4);
    }

    @Test
    public void test_isUrlCrawlable_emptyUrl() {
        DataStoreParams paramMap = new DataStoreParams();
        paramMap.put("url_exclude_pattern", ".*");

        boolean result = indexUpdateCallback.isUrlCrawlable(paramMap, "");