tests: Add a very basic dump bgp PATH.. topotest

None of the bgp dump code was even tested.  Add a bit
of basic stuff that it at least generates a dump file.
This can be extended at a future time.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
This commit is contained in:
Donald Sharp 2024-09-20 13:02:51 -04:00
parent 65609a672f
commit 8bb70ffb26
3 changed files with 131 additions and 0 deletions

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!
int r1-eth0
ip address 192.168.1.1/24
!
router bgp 65001
no bgp ebgp-requires-policy
neighbor 192.168.1.2 remote-as external
neighbor 192.168.1.2 timers 1 3
neighbor 192.168.1.2 timers connect 1
neighbor 192.168.1.2 capability dynamic
!
!

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!
int lo
ip address 10.10.10.10/32
!
int r2-eth0
ip address 192.168.1.2/24
!
router bgp 65002
no bgp ebgp-requires-policy
neighbor 192.168.1.1 remote-as external
neighbor 192.168.1.1 timers 1 3
neighbor 192.168.1.1 timers connect 1
!
address-family ipv4 unicast
redistribute connected
exit-address-family
!

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#!/usr/bin/env python
# SPDX-License-Identifier: ISC
# Copyright (c) 2024 by Nvidia Corporation
# Donald Sharp <sharpd@nvidia.com>
import os
import sys
import json
import pytest
import functools
from lib.topolog import logger
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, get_topogen
def setup_module(mod):
topodef = {"s1": ("r1", "r2")}
tgen = Topogen(topodef, mod.__name__)
tgen.start_topology()
router_list = tgen.routers()
for _, (rname, router) in enumerate(router_list.items(), 1):
router.load_frr_config(os.path.join(CWD, "{}/frr.conf".format(rname)))
tgen.start_router()
def teardown_module(mod):
tgen = get_topogen()
tgen.stop_topology()
def test_bgp_dump():
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
logger.info("Test the ability for bgp to dump a file specified")
r1 = tgen.gears["r1"]
logger.info("Converge BGP")
def _converge():
output = json.loads(r1.vtysh_cmd("show bgp ipv4 unicast 10.10.10.10/32 json"))
expected = {
"paths": [
{
"valid": True,
"nexthops": [
{
"hostname": "r2",
"accessible": True,
}
],
}
]
}
return topotest.json_cmp(output, expected)
test_func = functools.partial(
_converge,
)
_, result = topotest.run_and_expect(test_func, None, count=30, wait=1)
assert result is None, "Can't converge"
logger.info("Dumping file")
####
# Create a dump file
####
r1.vtysh_cmd(
"""
configure terminal
dump bgp all bgp_dump.file
"""
)
def _test_dump_file_existence():
dump_file = "{}/r1/bgp_dump.file".format(tgen.logdir)
logger.info("Looking for {} file".format(dump_file))
logger.info(os.path.isfile(dump_file))
return os.path.isfile(dump_file)
logger.info("Ensure that Log file exists")
_, result = topotest.run_and_expect(_test_dump_file_existence, True, count=30, wait = 3)
assert result is True
# At this point all we have done is ensure that the dump file
# is generated for r1. What is correctness of the dump anyways?
if __name__ == "__main__":
args = ["-s"] + sys.argv[1:]
sys.exit(pytest.main(args))