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 pytest
  38 import functools
  39
  40 CWD = os.path.dirname(os.path.realpath(__file__))
  41 sys.path.append(os.path.join(CWD, "../"))
  42
  43 # pylint: disable=C0413
  44 from lib import topotest
  45 from lib.topogen import Topogen, TopoRouter, get_topogen
  46
  47 pytestmark = [pytest.mark.bgpd]
  48
  49
  50 def build_topo(tgen):
  51     for routern in range(1, 3):
  52         tgen.add_router("r{}".format(routern))
  53
  54     switch = tgen.add_switch("s1")
  55     switch.add_link(tgen.gears["r1"])
  56     switch.add_link(tgen.gears["r2"])
  57
  58
  59 def setup_module(mod):
  60     tgen = Topogen(build_topo, mod.__name__)
  61     tgen.start_topology()
  62
  63     router_list = tgen.routers()
  64
  65     for i, (rname, router) in enumerate(router_list.items(), 1):
  66         router.load_config(
  67             TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
  68         )
  69         router.load_config(
  70             TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname))
  71         )
  72
  73     tgen.start_router()
  74
  75
  76 def teardown_module(mod):
  77     tgen = get_topogen()
  78     tgen.stop_topology()
  79
  80
  81 def test_bgp_aggregate_address_origin():
  82     tgen = get_topogen()
  83
  84     if tgen.routers_have_failure():
  85         pytest.skip(tgen.errors)
  86
  87     router = tgen.gears["r2"]
  88
  89     def _bgp_converge(router):
  90         output = json.loads(router.vtysh_cmd("show ip bgp neighbor 192.168.255.1 json"))
  91         expected = {
  92             "192.168.255.1": {
  93                 "bgpState": "Established",
  94                 "addressFamilyInfo": {"ipv4Unicast": {"acceptedPrefixCounter": 3}},
  95             }
  96         }
  97         return topotest.json_cmp(output, expected)
  98
  99     def _bgp_aggregate_address_has_metric(router):
 100         output = json.loads(router.vtysh_cmd("show ip bgp 172.16.255.0/24 json"))
 101         expected = {"paths": [{"origin": "IGP"}]}
 102         return topotest.json_cmp(output, expected)
 103
 104     test_func = functools.partial(_bgp_converge, router)
 105     success, result = topotest.run_and_expect(test_func, None, count=30, wait=0.5)
 106
 107     assert result is None, 'Failed to see bgp convergence in "{}"'.format(router)
 108
 109     test_func = functools.partial(_bgp_aggregate_address_has_metric, router)
 110     success, result = topotest.run_and_expect(test_func, None, count=30, wait=0.5)
 111
 112     assert (
 113         result is None
 114     ), 'Failed to see applied ORIGIN (igp) for aggregated prefix in "{}"'.format(router)
 115
 116
 117 if __name__ == "__main__":
 118     args = ["-s"] + sys.argv[1:]
 119     sys.exit(pytest.main(args))