tests/topotests/bgp_aggregate_address_origin/test_bgp_aggregate-address_origin.py

   1 #!/usr/bin/env python
   2
   3 #
   4 # bgp_aggregate-address_origin.py
   5 # Part of NetDEF Topology Tests
   6 #
   7 # Copyright (c) 2020 by
   8 # Donatas Abraitis <donatas.abraitis@gmail.com>
   9 #
  10 # Permission to use, copy, modify, and/or distribute this software
  11 # for any purpose with or without fee is hereby granted, provided
  12 # that the above copyright notice and this permission notice appear
  13 # in all copies.
  14 #
  15 # THE SOFTWARE IS PROVIDED "AS IS" AND NETDEF DISCLAIMS ALL WARRANTIES
  16 # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  17 # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NETDEF BE LIABLE FOR
  18 # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
  19 # DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  20 # WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
  21 # ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  22 # OF THIS SOFTWARE.
  23 #
  24
  25 """
  26 bgp_aggregate-address_origin.py:
  27
  28 Test if works the following commands:
  29 router bgp 65031
  30   address-family ipv4 unicast
  31     aggregate-address 192.168.255.0/24 origin igp
  32 """
  33
  34 import os
  35 import sys
  36 import json
  37 import time
  38 import pytest
  39 import functools
  40
  41 CWD = os.path.dirname(os.path.realpath(__file__))
  42 sys.path.append(os.path.join(CWD, "../"))
  43
  44 # pylint: disable=C0413
  45 from lib import topotest
  46 from lib.topogen import Topogen, TopoRouter, get_topogen
  47 from lib.topolog import logger
  48 from lib.micronet_compat import Topo
  49
  50 pytestmark = [pytest.mark.bgpd]
  51
  52
  53 class TemplateTopo(Topo):
  54     def build(self, *_args, **_opts):
  55         tgen = get_topogen(self)
  56
  57         for routern in range(1, 3):
  58             tgen.add_router("r{}".format(routern))
  59
  60         switch = tgen.add_switch("s1")
  61         switch.add_link(tgen.gears["r1"])
  62         switch.add_link(tgen.gears["r2"])
  63
  64
  65 def setup_module(mod):
  66     tgen = Topogen(TemplateTopo, mod.__name__)
  67     tgen.start_topology()
  68
  69     router_list = tgen.routers()
  70
  71     for i, (rname, router) in enumerate(router_list.items(), 1):
  72         router.load_config(
  73             TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
  74         )
  75         router.load_config(
  76             TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname))
  77         )
  78
  79     tgen.start_router()
  80
  81
  82 def teardown_module(mod):
  83     tgen = get_topogen()
  84     tgen.stop_topology()
  85
  86
  87 def test_bgp_aggregate_address_origin():
  88     tgen = get_topogen()
  89
  90     if tgen.routers_have_failure():
  91         pytest.skip(tgen.errors)
  92
  93     router = tgen.gears["r2"]
  94
  95     def _bgp_converge(router):
  96         output = json.loads(router.vtysh_cmd("show ip bgp neighbor 192.168.255.1 json"))
  97         expected = {
  98             "192.168.255.1": {
  99                 "bgpState": "Established",
 100                 "addressFamilyInfo": {"ipv4Unicast": {"acceptedPrefixCounter": 3}},
 101             }
 102         }
 103         return topotest.json_cmp(output, expected)
 104
 105     def _bgp_aggregate_address_has_metric(router):
 106         output = json.loads(router.vtysh_cmd("show ip bgp 172.16.255.0/24 json"))
 107         expected = {"paths": [{"origin": "IGP"}]}
 108         return topotest.json_cmp(output, expected)
 109
 110     test_func = functools.partial(_bgp_converge, router)
 111     success, result = topotest.run_and_expect(test_func, None, count=30, wait=0.5)
 112
 113     assert result is None, 'Failed to see bgp convergence in "{}"'.format(router)
 114
 115     test_func = functools.partial(_bgp_aggregate_address_has_metric, router)
 116     success, result = topotest.run_and_expect(test_func, None, count=30, wait=0.5)
 117
 118     assert (
 119         result is None
 120     ), 'Failed to see applied ORIGIN (igp) for aggregated prefix in "{}"'.format(router)
 121
 122
 123 if __name__ == "__main__":
 124     args = ["-s"] + sys.argv[1:]
 125     sys.exit(pytest.main(args))