vpp/test/test_l2bd_learnlimit.py
Dave Wallace 8800f732f8 tests: refactor asf framework code
- Make framework.py classes a subset of asfframework.py classes
- Remove all packet related code from asfframework.py
- Add test class and test case set up debug output to log
- Repatriate packet tests from asf to test directory
- Remove non-packet related code from framework.py and
  inherit them from asfframework.py classes
- Clean up unused import variables
- Re-enable BFD tests on Ubuntu 22.04 and fix
  intermittent test failures in echo_looped_back
  testcases (where # control packets verified but
  not guaranteed to be received during test)
- Re-enable Wireguard tests on Ubuntu 22.04 and fix
  intermittent test failures in handshake ratelimiting
  testcases and event testcase
- Run Wiregard testcase suites solo
- Improve debug output in log.txt
- Increase VCL/LDP post sleep timeout to allow iperf server
  to finish cleanly.
- Fix pcap history files to be sorted by suite and testcase
  and ensure order/timestamp is correct based on creation
  in the testcase.
- Decode pcap files for each suite and testcase for all
  errors or if configured via comandline option / env var
- Improve vpp corefile detection to allow complete corefile
  generation
- Disable vm vpp interfaces testcases on debian11
- Clean up failed unittest dir when retrying failed testcases
  and unify testname directory and failed linknames into
  framwork functions

Type: test

Change-Id: I0764f79ea5bb639d278bf635ed2408d4d5220e1e
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
2023-11-03 05:06:43 +00:00

102 lines
3.1 KiB
Python

#!/usr/bin/env python3
import unittest
from scapy.layers.l2 import Ether
from framework import VppTestCase
from asfframework import VppTestRunner
from util import Host
class TestL2LearnLimit(VppTestCase):
"""L2 Learn no limit Test Case"""
@classmethod
def setUpClass(self):
super(TestL2LearnLimit, self).setUpClass()
self.create_pg_interfaces(range(3))
@classmethod
def tearDownClass(cls):
super(TestL2LearnLimit, cls).tearDownClass()
def create_hosts(self, pg_if, n_hosts_per_if, subnet):
"""
Create required number of host MAC addresses and distribute them among
interfaces. Create host IPv4 address for every host MAC address.
:param int n_hosts_per_if: Number of per interface hosts to
create MAC/IPv4 addresses for.
"""
hosts = dict()
swif = pg_if.sw_if_index
def mac(j):
return "00:00:%02x:ff:%02x:%02x" % (subnet, swif, j)
def ip(j):
return "172.%02u.1%02x.%u" % (subnet, swif, j)
def h(j):
return Host(mac(j), ip(j))
hosts[swif] = [h(j) for j in range(n_hosts_per_if)]
return hosts
def learn_hosts(self, pg_if, bd_id, hosts):
"""
Create and send per interface L2 MAC broadcast packet stream to
let the bridge domain learn these MAC addresses.
:param int bd_id: BD to teach
:param dict hosts: dict of hosts per interface
"""
self.vapi.bridge_flags(bd_id=bd_id, is_set=1, flags=1)
swif = pg_if.sw_if_index
packets = [Ether(dst="ff:ff:ff:ff:ff:ff", src=host.mac) for host in hosts[swif]]
pg_if.add_stream(packets)
self.logger.info("Sending broadcast eth frames for MAC learning")
self.pg_start()
def test_l2bd_learnlimit(self):
"""L2BD test without learn Limit"""
hosts = self.create_hosts(self.pg_interfaces[0], 20, 1)
self.learn_hosts(self.pg_interfaces[0], 1, hosts)
lfs = self.vapi.l2_fib_table_dump(1)
# check that 20 macs are learned.
self.assertEqual(len(lfs), 20)
def setUp(self):
super(TestL2LearnLimit, self).setUp()
self.vapi.bridge_domain_add_del_v2(
bd_id=1, is_add=1, flood=1, forward=1, learn=1, uu_flood=1
)
self.vapi.bridge_domain_add_del_v2(
bd_id=2, is_add=1, flood=1, forward=1, learn=1, uu_flood=1
)
self.vapi.sw_interface_set_l2_bridge(self.pg_interfaces[0].sw_if_index, bd_id=1)
self.vapi.sw_interface_set_l2_bridge(self.pg_interfaces[1].sw_if_index, bd_id=2)
def tearDown(self):
super(TestL2LearnLimit, self).tearDown()
self.vapi.sw_interface_set_l2_bridge(
rx_sw_if_index=self.pg_interfaces[0].sw_if_index, bd_id=1, enable=0
)
self.vapi.sw_interface_set_l2_bridge(
rx_sw_if_index=self.pg_interfaces[1].sw_if_index, bd_id=2, enable=0
)
self.vapi.bridge_domain_add_del_v2(bd_id=1, is_add=0)
self.vapi.bridge_domain_add_del_v2(bd_id=2, is_add=0)
if __name__ == "__main__":
unittest.main(testRunner=VppTestRunner)