Object sameLock = crawlerContext.getActiveThreadCountLock();
        assertSame(lock, sameLock);
    }

    /**
     * Test numOfThread getter and setter
     */
    public void test_numOfThread() {
        assertEquals(10, crawlerContext.getNumOfThread());

        crawlerContext.setNumOfThread(5);
        assertEquals(5, crawlerContext.getNumOfThread());

        crawlerContext.setNumOfThread(0);