int priority = Thread.MIN_PRIORITY;
        webFsIndexHelper.setCrawlerPriority(priority);
        assertEquals(priority, webFsIndexHelper.crawlerPriority);
    }

    @Test
    public void test_crawlerList_initialization() {
        assertNotNull(webFsIndexHelper.crawlerList);
        assertEquals(0, webFsIndexHelper.crawlerList.size());
    }

    @Test
    public void test_crawlerList_synchronization() {