'Skip a test when connected to mongos < 2.0 and running with auth.'

def check_auth_with_sharding(self, func):

    condition = (not (self.auth_enabled and self.is_mongos and (self.version < (2,))))
    return self._require(condition, 'Auth    with    sharding    requires    MongoDB    >=    2.0.0', func=func)
