String escaped = crawlerStatsHelper.escapeValue(input);
        assertEquals("test with tabs", escaped);
        assertFalse(escaped.contains("\t"));
    }

    public void test_statsKeyObjectWithoutUrl() {
        StatsKeyObject key = new StatsKeyObject("test_id");
        crawlerStatsHelper.begin(key);
        crawlerStatsHelper.record(key, "action");
        crawlerStatsHelper.done(key);