tests/topotests/bgp_aggregate_address_route_map/test_bgp_aggregate-address_route-map.py

   1 #!/usr/bin/env python
   2
   3 #
   4 # bgp_aggregate-address_route-map.py
   5 # Part of NetDEF Topology Tests
   6 #
   7 # Copyright (c) 2019 by
   8 # Network Device Education Foundation, Inc. ("NetDEF")
   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_route-map.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 route-map aggr-rmap
  32
  33 route-map aggr-rmap permit 10
  34   set metric 123
  35 """
  36
  37 import os
  38 import sys
  39 import json
  40 import pytest
  41 import functools
  42
  43 CWD = os.path.dirname(os.path.realpath(__file__))
  44 sys.path.append(os.path.join(CWD, "../"))
  45
  46 # pylint: disable=C0413
  47 from lib import topotest
  48 from lib.topogen import Topogen, TopoRouter, get_topogen
  49
  50 pytestmark = [pytest.mark.bgpd]
  51
  52
  53 def build_topo(tgen):
  54     for routern in range(1, 3):
  55         tgen.add_router("r{}".format(routern))
  56
  57     switch = tgen.add_switch("s1")
  58     switch.add_link(tgen.gears["r1"])
  59     switch.add_link(tgen.gears["r2"])
  60
  61
  62 def setup_module(mod):
  63     tgen = Topogen(build_topo, mod.__name__)
  64     tgen.start_topology()
  65
  66     router_list = tgen.routers()
  67
  68     for i, (rname, router) in enumerate(router_list.items(), 1):
  69         router.load_config(
  70             TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
  71         )
  72         router.load_config(
  73             TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname))
  74         )
  75
  76     tgen.start_router()
  77
  78
  79 def teardown_module(mod):
  80     tgen = get_topogen()
  81     tgen.stop_topology()
  82
  83
  84 def test_bgp_maximum_prefix_invalid():
  85     tgen = get_topogen()
  86
  87     if tgen.routers_have_failure():
  88         pytest.skip(tgen.errors)
  89
  90     router = tgen.gears["r2"]
  91
  92     def _bgp_converge(router):
  93         output = json.loads(router.vtysh_cmd("show ip bgp neighbor 192.168.255.1 json"))
  94         expected = {
  95             "192.168.255.1": {
  96                 "bgpState": "Established",
  97                 "addressFamilyInfo": {"ipv4Unicast": {"acceptedPrefixCounter": 3}},
  98             }
  99         }
 100         return topotest.json_cmp(output, expected)
 101
 102     def _bgp_aggregate_address_has_metric(router):
 103         output = json.loads(router.vtysh_cmd("show ip bgp 172.16.255.0/24 json"))
 104         expected = {"paths": [{"metric": 123}]}
 105         return topotest.json_cmp(output, expected)
 106
 107     test_func = functools.partial(_bgp_converge, router)
 108     success, result = topotest.run_and_expect(test_func, None, count=30, wait=0.5)
 109
 110     assert result is None, 'Failed to see bgp convergence in "{}"'.format(router)
 111
 112     test_func = functools.partial(_bgp_aggregate_address_has_metric, router)
 113     success, result = topotest.run_and_expect(test_func, None, count=30, wait=0.5)
 114
 115     assert (
 116         result is None
 117     ), 'Failed to see applied metric for aggregated prefix in "{}"'.format(router)
 118
 119
 120 if __name__ == "__main__":
 121     args = ["-s"] + sys.argv[1:]
 122     sys.exit(pytest.main(args))