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Diffstat (limited to 'tests/topotests/bfd_topo3/test_bfd_topo3.py')
| -rw-r--r-- | tests/topotests/bfd_topo3/test_bfd_topo3.py | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/tests/topotests/bfd_topo3/test_bfd_topo3.py b/tests/topotests/bfd_topo3/test_bfd_topo3.py new file mode 100644 index 0000000..978593e --- /dev/null +++ b/tests/topotests/bfd_topo3/test_bfd_topo3.py @@ -0,0 +1,171 @@ +#!/usr/bin/env python + +# +# test_bfd_topo3.py +# Part of NetDEF Topology Tests +# +# Copyright (c) 2020 by +# Network Device Education Foundation, Inc. ("NetDEF") +# +# 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_bfd_topo3.py: Test the FRR BFD daemon multi hop. +""" + +import os +import sys +import json +from functools import partial +import pytest + +# Save the Current Working Directory to find configuration files. +CWD = os.path.dirname(os.path.realpath(__file__)) +sys.path.append(os.path.join(CWD, "../")) + +# pylint: disable=C0413 +# Import topogen and topotest helpers +from lib import topotest +from lib.topogen import Topogen, TopoRouter, get_topogen +from lib.topolog import logger + +pytestmark = [pytest.mark.bfdd, pytest.mark.bgpd] + + +def setup_module(mod): + "Sets up the pytest environment" + topodef = { + "s1": ("r1", "r2"), + "s2": ("r2", "r3"), + "s3": ("r3", "r4"), + } + tgen = Topogen(topodef, mod.__name__) + tgen.start_topology() + + router_list = tgen.routers() + for rname, router in router_list.items(): + daemon_file = "{}/{}/bfdd.conf".format(CWD, rname) + if os.path.isfile(daemon_file): + router.load_config(TopoRouter.RD_BFD, daemon_file) + + daemon_file = "{}/{}/zebra.conf".format(CWD, rname) + if os.path.isfile(daemon_file): + router.load_config(TopoRouter.RD_ZEBRA, daemon_file) + + daemon_file = "{}/{}/bgpd.conf".format(CWD, rname) + if os.path.isfile(daemon_file): + router.load_config(TopoRouter.RD_BGP, daemon_file) + + # Initialize all routers. + tgen.start_router() + + +def test_wait_bgp_convergence(): + "Wait for BGP to converge" + tgen = get_topogen() + if tgen.routers_have_failure(): + pytest.skip(tgen.errors) + + logger.info("waiting for protocols to converge") + + def expect_loopback_route(router, iptype, route, proto): + "Wait until route is present on RIB for protocol." + logger.info("waiting route {} in {}".format(route, router)) + test_func = partial( + topotest.router_json_cmp, + tgen.gears[router], + "show {} route json".format(iptype), + {route: [{"protocol": proto}]}, + ) + _, result = topotest.run_and_expect(test_func, None, count=130, wait=1) + assertmsg = '"{}" OSPF convergence failure'.format(router) + assert result is None, assertmsg + + # Wait for R1 <-> R2 convergence. + expect_loopback_route("r1", "ip", "10.254.254.2/32", "bgp") + # Wait for R1 <-> R3 convergence. + expect_loopback_route("r1", "ip", "10.254.254.3/32", "bgp") + # Wait for R1 <-> R4 convergence. + expect_loopback_route("r1", "ip", "10.254.254.4/32", "bgp") + + # Wait for R2 <-> R1 convergence. + expect_loopback_route("r2", "ip", "10.254.254.1/32", "bgp") + # Wait for R2 <-> R3 convergence. + expect_loopback_route("r2", "ip", "10.254.254.3/32", "bgp") + # Wait for R2 <-> R4 convergence. + expect_loopback_route("r2", "ip", "10.254.254.4/32", "bgp") + + # Wait for R3 <-> R1 convergence. + expect_loopback_route("r3", "ip", "10.254.254.1/32", "bgp") + # Wait for R3 <-> R2 convergence. + expect_loopback_route("r3", "ip", "10.254.254.2/32", "bgp") + # Wait for R3 <-> R4 convergence. + expect_loopback_route("r3", "ip", "10.254.254.4/32", "bgp") + + # Wait for R4 <-> R1 convergence. + expect_loopback_route("r4", "ip", "10.254.254.1/32", "bgp") + # Wait for R4 <-> R2 convergence. + expect_loopback_route("r4", "ip", "10.254.254.2/32", "bgp") + # Wait for R4 <-> R3 convergence. + expect_loopback_route("r4", "ip", "10.254.254.3/32", "bgp") + + +def test_wait_bfd_convergence(): + "Wait for BFD to converge" + tgen = get_topogen() + if tgen.routers_have_failure(): + pytest.skip(tgen.errors) + + logger.info("test BFD configurations") + + def expect_bfd_configuration(router): + "Load JSON file and compare with 'show bfd peer json'" + logger.info("waiting BFD configuration on router {}".format(router)) + bfd_config = json.loads(open("{}/{}/bfd-peers.json".format(CWD, router)).read()) + test_func = partial( + topotest.router_json_cmp, + tgen.gears[router], + "show bfd peers json", + bfd_config, + ) + _, result = topotest.run_and_expect(test_func, None, count=130, wait=1) + assertmsg = '"{}" BFD configuration failure'.format(router) + assert result is None, assertmsg + + expect_bfd_configuration("r1") + expect_bfd_configuration("r2") + expect_bfd_configuration("r3") + expect_bfd_configuration("r4") + + +def teardown_module(_mod): + "Teardown the pytest environment" + tgen = get_topogen() + tgen.stop_topology() + + +def test_memory_leak(): + "Run the memory leak test and report results." + tgen = get_topogen() + if not tgen.is_memleak_enabled(): + pytest.skip("Memory leak test/report is disabled") + + tgen.report_memory_leaks() + + +if __name__ == "__main__": + args = ["-s"] + sys.argv[1:] + sys.exit(pytest.main(args)) |