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

   1 #!/usr/bin/env python
   2 # SPDX-License-Identifier: ISC
   3
   4 #
   5 # bgp_aggregate-address_route-map.py
   6 # Part of NetDEF Topology Tests
   7 #
   8 # Copyright (c) 2019 by
   9 # Network Device Education Foundation, Inc. ("NetDEF")
  10 #
  11
  12 """
  13 bgp_aggregate-address_route-map.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 route-map aggr-rmap
  19
  20 route-map aggr-rmap permit 10
  21   set metric 123
  22 """
  23
  24 import os
  25 import sys
  26 import json
  27 import pytest
  28 import functools
  29
  30 CWD = os.path.dirname(os.path.realpath(__file__))
  31 sys.path.append(os.path.join(CWD, "../"))
  32
  33 # pylint: disable=C0413
  34 from lib import topotest
  35 from lib.topogen import Topogen, TopoRouter, get_topogen
  36
  37 pytestmark = [pytest.mark.bgpd]
  38
  39
  40 def build_topo(tgen):
  41     for routern in range(1, 3):
  42         tgen.add_router("r{}".format(routern))
  43
  44     switch = tgen.add_switch("s1")
  45     switch.add_link(tgen.gears["r1"])
  46     switch.add_link(tgen.gears["r2"])
  47
  48
  49 def setup_module(mod):
  50     tgen = Topogen(build_topo, mod.__name__)
  51     tgen.start_topology()
  52
  53     router_list = tgen.routers()
  54
  55     for i, (rname, router) in enumerate(router_list.items(), 1):
  56         router.load_config(
  57             TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
  58         )
  59         router.load_config(
  60             TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname))
  61         )
  62
  63     tgen.start_router()
  64
  65
  66 def teardown_module(mod):
  67     tgen = get_topogen()
  68     tgen.stop_topology()
  69
  70
  71 def test_bgp_maximum_prefix_invalid():
  72     tgen = get_topogen()
  73
  74     if tgen.routers_have_failure():
  75         pytest.skip(tgen.errors)
  76
  77     router = tgen.gears["r2"]
  78
  79     def _bgp_converge(router):
  80         output = json.loads(router.vtysh_cmd("show ip bgp neighbor 192.168.255.1 json"))
  81         expected = {
  82             "192.168.255.1": {
  83                 "bgpState": "Established",
  84                 "addressFamilyInfo": {"ipv4Unicast": {"acceptedPrefixCounter": 3}},
  85             }
  86         }
  87         return topotest.json_cmp(output, expected)
  88
  89     def _bgp_aggregate_address_has_metric(router):
  90         output = json.loads(router.vtysh_cmd("show ip bgp 172.16.255.0/24 json"))
  91         expected = {"paths": [{"metric": 123}]}
  92         return topotest.json_cmp(output, expected)
  93
  94     test_func = functools.partial(_bgp_converge, router)
  95     success, result = topotest.run_and_expect(test_func, None, count=30, wait=0.5)
  96
  97     assert result is None, 'Failed to see bgp convergence in "{}"'.format(router)
  98
  99     test_func = functools.partial(_bgp_aggregate_address_has_metric, router)
 100     success, result = topotest.run_and_expect(test_func, None, count=30, wait=0.5)
 101
 102     assert (
 103         result is None
 104     ), 'Failed to see applied metric for aggregated prefix in "{}"'.format(router)
 105
 106
 107 if __name__ == "__main__":
 108     args = ["-s"] + sys.argv[1:]
 109     sys.exit(pytest.main(args))