assertEquals("test.stats.logger", crawlerStatsHelper.loggerName);
        crawlerStatsHelper.setLoggerName(originalLoggerName);
    }

    @Test
    public void test_setMaxCacheSize() {
        crawlerStatsHelper.setMaxCacheSize(500);
        assertEquals(500, crawlerStatsHelper.maxCacheSize);
    }

    @Test
    public void test_setCacheExpireAfterWrite() {