tests/topotests/bgp_aggregate_address_origin/test_bgp_aggregate-address_origin.py

   1 #!/usr/bin/env python
   2 # SPDX-License-Identifier: ISC
   3
   4 #
   5 # bgp_aggregate-address_origin.py
   6 # Part of NetDEF Topology Tests
   7 #
   8 # Copyright (c) 2020 by
   9 # Donatas Abraitis <donatas.abraitis@gmail.com>
  10 #
  11
  12 """
  13 bgp_aggregate-address_origin.py:
  14
  15 Test if works the following commands:
  16 router bgp 65031
  17   address-family ipv4 unicast
  18     aggregate-address 192.168.255.0/24 origin igp
  19 """
  20
  21 import os
  22 import sys
  23 import json
  24 import pytest
  25 import functools
  26
  27 CWD = os.path.dirname(os.path.realpath(__file__))
  28 sys.path.append(os.path.join(CWD, "../"))
  29
  30 # pylint: disable=C0413
  31 from lib import topotest
  32 from lib.topogen import Topogen, TopoRouter, get_topogen
  33
  34 pytestmark = [pytest.mark.bgpd]
  35
  36
  37 def build_topo(tgen):
  38     for routern in range(1, 3):
  39         tgen.add_router("r{}".format(routern))
  40
  41     switch = tgen.add_switch("s1")
  42     switch.add_link(tgen.gears["r1"])
  43     switch.add_link(tgen.gears["r2"])
  44
  45
  46 def setup_module(mod):
  47     tgen = Topogen(build_topo, mod.__name__)
  48     tgen.start_topology()
  49
  50     router_list = tgen.routers()
  51
  52     for i, (rname, router) in enumerate(router_list.items(), 1):
  53         router.load_config(
  54             TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
  55         )
  56         router.load_config(
  57             TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname))
  58         )
  59
  60     tgen.start_router()
  61
  62
  63 def teardown_module(mod):
  64     tgen = get_topogen()
  65     tgen.stop_topology()
  66
  67
  68 def test_bgp_aggregate_address_origin():
  69     tgen = get_topogen()
  70
  71     if tgen.routers_have_failure():
  72         pytest.skip(tgen.errors)
  73
  74     router = tgen.gears["r2"]
  75
  76     def _bgp_converge(router):
  77         output = json.loads(router.vtysh_cmd("show ip bgp neighbor 192.168.255.1 json"))
  78         expected = {
  79             "192.168.255.1": {
  80                 "bgpState": "Established",
  81                 "addressFamilyInfo": {"ipv4Unicast": {"acceptedPrefixCounter": 3}},
  82             }
  83         }
  84         return topotest.json_cmp(output, expected)
  85
  86     def _bgp_aggregate_address_has_metric(router):
  87         output = json.loads(router.vtysh_cmd("show ip bgp 172.16.255.0/24 json"))
  88         expected = {"paths": [{"origin": "IGP"}]}
  89         return topotest.json_cmp(output, expected)
  90
  91     test_func = functools.partial(_bgp_converge, router)
  92     success, result = topotest.run_and_expect(test_func, None, count=30, wait=0.5)
  93
  94     assert result is None, 'Failed to see bgp convergence in "{}"'.format(router)
  95
  96     test_func = functools.partial(_bgp_aggregate_address_has_metric, router)
  97     success, result = topotest.run_and_expect(test_func, None, count=30, wait=0.5)
  98
  99     assert (
 100         result is None
 101     ), 'Failed to see applied ORIGIN (igp) for aggregated prefix in "{}"'.format(router)
 102
 103
 104 if __name__ == "__main__":
 105     args = ["-s"] + sys.argv[1:]
 106     sys.exit(pytest.main(args))