118 lines
3.3 KiB
Python
118 lines
3.3 KiB
Python
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#!/usr/bin/env python
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# SPDX-License-Identifier: ISC
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#
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# test_bgp_confed1.py
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#
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# Copyright 2022 6WIND S.A.
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#
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"""
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test_bgp_confed1.py: Test the FRR BGP confederations with AS member
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same as confederation Id, verify BGP prefixes and path distribution
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"""
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import os
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import sys
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import json
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from functools import partial
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import pytest
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# Save the Current Working Directory to find configuration files.
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CWD = os.path.dirname(os.path.realpath(__file__))
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sys.path.append(os.path.join(CWD, "../"))
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# pylint: disable=C0413
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# Import topogen and topotest helpers
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from lib import topotest
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from lib.topogen import Topogen, TopoRouter, get_topogen
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from lib.topolog import logger
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pytestmark = [pytest.mark.bgpd]
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def build_topo(tgen):
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for routern in range(1, 5):
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tgen.add_router("r{}".format(routern))
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switch = tgen.add_switch("s1")
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switch.add_link(tgen.gears["r1"])
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switch.add_link(tgen.gears["r2"])
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switch = tgen.add_switch("s3")
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switch.add_link(tgen.gears["r3"])
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switch.add_link(tgen.gears["r4"])
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switch = tgen.add_switch("s2")
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switch.add_link(tgen.gears["r2"])
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switch.add_link(tgen.gears["r3"])
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def setup_module(mod):
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tgen = Topogen(build_topo, mod.__name__)
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tgen.start_topology()
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router_list = tgen.routers()
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for rname, router in router_list.items():
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router.load_config(
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TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
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)
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router.load_config(
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TopoRouter.RD_ISIS, os.path.join(CWD, "{}/isisd.conf".format(rname))
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)
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router.load_config(
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TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname))
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)
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# Initialize all routers.
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tgen.start_router()
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def teardown_module(_mod):
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"Teardown the pytest environment"
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tgen = get_topogen()
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tgen.stop_topology()
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def test_bgp_convergence():
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"Assert that BGP is converging."
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tgen = get_topogen()
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if tgen.routers_have_failure():
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pytest.skip(tgen.errors)
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logger.info("waiting for bgp peers to go up")
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for router in tgen.routers().values():
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ref_file = "{}/{}/bgp_summary.json".format(CWD, router.name)
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expected = json.loads(open(ref_file).read())
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test_func = partial(
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topotest.router_json_cmp, router, "show ip bgp summary json", expected
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)
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_, res = topotest.run_and_expect(test_func, None, count=125, wait=2.0)
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assertmsg = "{}: bgp did not converge".format(router.name)
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assert res is None, assertmsg
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def test_bgp_confed_ipv4_unicast():
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"Assert that BGP is exchanging BGP route."
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tgen = get_topogen()
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if tgen.routers_have_failure():
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pytest.skip(tgen.errors)
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logger.info("waiting for bgp peers exchanging UPDATES")
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for router in tgen.routers().values():
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ref_file = "{}/{}/bgp_ipv4_unicast.json".format(CWD, router.name)
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expected = json.loads(open(ref_file).read())
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test_func = partial(
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topotest.router_json_cmp, router, "show bgp ipv4 unicast json", expected
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)
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_, res = topotest.run_and_expect(test_func, None, count=40, wait=2.5)
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assertmsg = "{}: BGP UPDATE exchange failure".format(router.name)
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assert res is None, assertmsg
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if __name__ == "__main__":
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args = ["-s"] + sys.argv[1:]
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sys.exit(pytest.main(args))
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