def _test_arp_connectivity(self, direction, protocol, src_port, dst_port):
        src_namespace, ip_address = self._get_namespace_and_address(direction)
        try:
            net_helpers.assert_arping(src_namespace, ip_address)
        except __HOLE__:
            raise ConnectionTesterException(
                "ARP queries to %s address have no response from %s namespace"
                % (ip_address, src_namespace))
dataset/ETHPy150Open openstack/neutron/neutron/tests/common/conn_testers.py/ConnectionTester._test_arp_connectivity