public void testSpymemcachedFormatIsDefault() throws Exception {
        KetamaNodeKeyFormatter formatter = new KetamaNodeKeyFormatter();
        assertEquals(formatter.getFormat(), KetamaNodeKeyFormatter.Format.SPYMEMCACHED);
    }
Test the KetamaNodeKeyFormatter with the currently supported 2 formats used by
either spymemcached and libmemcached
src/test/java/net/spy/memcached/KetamaNodeKeyFormatterTest.java