protected void log(final StringBuilder buf) {
                localLogMsg.set(buf.toString());
            }
        };
        crawlerStatsHelper.init();
    }

    @Test
    public void test_beginDone() {
        String key = "test";
        crawlerStatsHelper.begin(key);
        crawlerStatsHelper.done(key);
        logger.info(localLogMsg.get());
        String[] values = localLogMsg.get().split("\t");