def _get_pinger(self, direction):
try:
pinger = self._pingers[direction]
except KeyError:
src_namespace, dst_address = self._get_namespace_and_address(
direction)
pinger = net_helpers.Pinger(src_namespace, dst_address)
self._pingers[direction] = pinger
return pinger
def assert_net_unreachable(self, direction, destination):
src_namespace, dst_address = self._get_namespace_and_address(direction)
pinger = net_helpers.Pinger(src_namespace, destination, count=5)
pinger.start()
pinger.wait()
if not pinger.destination_unreachable:
raise ConnectionTesterException(
'No Host Destination Unreachable packets were received when '
'sending icmp packets to %s' % destination)
def _get_packets_sent_received(src_namespace, dst_ip, count):
pinger = net_helpers.Pinger(src_namespace, dst_ip, count=count)
pinger.start()
pinger.wait()
return pinger.sent, pinger.received
