121 lines
3.1 KiB
Python
121 lines
3.1 KiB
Python
#!/usr/bin/env python
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# SPDX-License-Identifier: ISC
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#
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# Copyright (c) 2022 by
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# Donatas Abraitis <donatas@opensourcerouting.org>
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#
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"""
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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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import pytest
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import functools
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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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from lib import topotest
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from lib.topogen import Topogen, TopoRouter, get_topogen
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from lib.common_config import step
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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, 4):
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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("s2")
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switch.add_link(tgen.gears["r1"])
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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 i, (rname, router) in enumerate(router_list.items(), 1):
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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_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname))
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)
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tgen.start_router()
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def teardown_module(mod):
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tgen = get_topogen()
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tgen.stop_topology()
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def test_bgp_local_as_same_remote_as():
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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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def _bgp_check_local_as_same_remote_as():
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output = json.loads(
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tgen.gears["r2"].vtysh_cmd("show bgp ipv4 unicast 172.16.255.1/32 json")
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)
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expected = {
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"paths": [
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{
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"valid": True,
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"aspath": {"string": "Local"},
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"nexthops": [{"ip": "192.168.1.1", "hostname": "r1"}],
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}
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]
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}
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return topotest.json_cmp(output, expected)
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step("Check if iBGP works when local-as == remote-as")
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test_func = functools.partial(_bgp_check_local_as_same_remote_as)
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_, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5)
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assert result is None, "Failed to see BGP prefixes on R2"
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def test_bgp_peer_group_local_as_same_remote_as():
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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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def _bgp_check_local_as_same_remote_as():
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output = json.loads(
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tgen.gears["r3"].vtysh_cmd("show bgp ipv4 unicast 172.16.255.1/32 json")
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)
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expected = {
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"paths": [
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{
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"valid": True,
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"aspath": {"string": "Local"},
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"nexthops": [{"ip": "192.168.2.1", "hostname": "r1"}],
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}
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]
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}
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return topotest.json_cmp(output, expected)
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step("Initial BGP converge")
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test_func = functools.partial(_bgp_check_local_as_same_remote_as)
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_, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5)
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assert result is None, "Failed to see BGP prefixes on R3"
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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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