public void tearDown() throws Exception {
        super.tearDown();
        // close runner
        runner.close();
        // delete all files
        runner.clean();
    }

    public void test_insert_update_deleteTx() {
        final OpenSearchUrlQueue urlQueue = new OpenSearchUrlQueue();
        urlQueue.setCreateTime(System.currentTimeMillis());
        urlQueue.setDepth(1);
        urlQueue.setMethod("GET");