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#!/usr/bin/env python
#
# test_bgp_asdot_regex.py
# Part of Topotests
#
# Copyright 2022 6WIND S.A.
#
# Permission to use, copy, modify, and/or distribute this software
# for any purpose with or without fee is hereby granted, provided
# that the above copyright notice and this permission notice appear
# in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND NETDEF DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NETDEF BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
# DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
# ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
# OF THIS SOFTWARE.
#
"""
test_bgp_asdot_regex.py:
Test how regex applies when asnotation to forge bgp config is based on dot or not.
"""
import os
import sys
import json
import pytest
from functools import partial
# add after imports, before defining classes or functions:
pytestmark = [pytest.mark.bgpd]
CWD = os.path.dirname(os.path.realpath(__file__))
sys.path.append(os.path.join(CWD, "../"))
# pylint: disable=C0413
from lib import topotest
from lib.topogen import Topogen, TopoRouter, get_topogen
from lib.topolog import logger
pytestmark = [pytest.mark.bgpd]
def build_topo(tgen):
for routern in range(1, 3):
tgen.add_router("r{}".format(routern))
switch = tgen.add_switch("s1")
switch.add_link(tgen.gears["r1"])
switch.add_link(tgen.gears["r2"])
def setup_module(mod):
tgen = Topogen(build_topo, mod.__name__)
tgen.start_topology()
router_list = tgen.routers()
for i, (rname, router) in enumerate(router_list.items(), 1):
router.load_config(
TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
)
router.load_config(
TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname))
)
tgen.start_router()
def teardown_module(mod):
tgen = get_topogen()
tgen.stop_topology()
def test_bgp_asdot_regex():
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
router1 = tgen.gears["r1"]
router2 = tgen.gears["r2"]
def _bgp_converge(router):
output = json.loads(router.vtysh_cmd("show ip bgp neighbor 192.168.255.2 json"))
expected = {
"192.168.255.2": {
"bgpState": "Established",
"addressFamilyInfo": {"ipv4Unicast": {"acceptedPrefixCounter": 1}},
}
}
return topotest.json_cmp(output, expected)
logger.info("Check if neighbor sessions are up in {}".format(router1.name))
test_func = partial(_bgp_converge, router1)
success, result = topotest.run_and_expect(test_func, None, count=15, wait=0.5)
assert result is None, 'Failed to see BGP convergence in "{}"'.format(router1.name)
logger.info("BGP neighbor session is up in {}".format(router1.name))
logger.info("waiting for bgp peers exchanging UPDATES")
for router in tgen.routers().values():
ref_file = "{}/{}/show_bgp_ipv4.json".format(CWD, router.name)
expected = json.loads(open(ref_file).read())
test_func = partial(
topotest.router_json_cmp, router, "show bgp ipv4 unicast json", expected
)
_, res = topotest.run_and_expect(test_func, None, count=40, wait=2.5)
assertmsg = "{}: BGP UPDATE exchange failure".format(router.name)
assert res is None, assertmsg
if __name__ == "__main__":
args = ["-s"] + sys.argv[1:]
sys.exit(pytest.main(args))
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