tests/topotests/bgp_peer_group/test_bgp_peer-group.py

   1 #!/usr/bin/env python
   2
   3 #
   4 # Copyright (c) 2021 by
   5 # Donatas Abraitis <donatas.abraitis@gmail.com>
   6 #
   7 # Permission to use, copy, modify, and/or distribute this software
   8 # for any purpose with or without fee is hereby granted, provided
   9 # that the above copyright notice and this permission notice appear
  10 # in all copies.
  11 #
  12 # THE SOFTWARE IS PROVIDED "AS IS" AND NETDEF DISCLAIMS ALL WARRANTIES
  13 # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  14 # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NETDEF BE LIABLE FOR
  15 # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
  16 # DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  17 # WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
  18 # ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  19 # OF THIS SOFTWARE.
  20 #
  21
  22 """
  23 Test if peer-group works for numbered and unnumbered configurations.
  24 """
  25
  26 import os
  27 import sys
  28 import json
  29 import pytest
  30 import functools
  31
  32 CWD = os.path.dirname(os.path.realpath(__file__))
  33 sys.path.append(os.path.join(CWD, "../"))
  34
  35 # pylint: disable=C0413
  36 from lib import topotest
  37 from lib.topogen import Topogen, TopoRouter, get_topogen
  38
  39
  40 pytestmark = [pytest.mark.bgpd]
  41
  42
  43 def build_topo(tgen):
  44     for routern in range(1, 4):
  45         tgen.add_router("r{}".format(routern))
  46
  47     switch = tgen.add_switch("s1")
  48     switch.add_link(tgen.gears["r1"])
  49     switch.add_link(tgen.gears["r2"])
  50     switch.add_link(tgen.gears["r3"])
  51
  52
  53 def setup_module(mod):
  54     tgen = Topogen(build_topo, mod.__name__)
  55     tgen.start_topology()
  56
  57     router_list = tgen.routers()
  58
  59     for i, (rname, router) in enumerate(router_list.items(), 1):
  60         router.load_config(
  61             TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
  62         )
  63         router.load_config(
  64             TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname))
  65         )
  66
  67     tgen.start_router()
  68
  69
  70 def teardown_module(mod):
  71     tgen = get_topogen()
  72     tgen.stop_topology()
  73
  74
  75 def test_bgp_peer_group():
  76     tgen = get_topogen()
  77
  78     if tgen.routers_have_failure():
  79         pytest.skip(tgen.errors)
  80
  81     def _bgp_peer_group_configured():
  82         output = json.loads(tgen.gears["r1"].vtysh_cmd("show ip bgp neighbor json"))
  83         expected = {
  84             "r1-eth0": {"peerGroup": "PG", "bgpState": "Established"},
  85             "192.168.255.3": {"peerGroup": "PG", "bgpState": "Established"},
  86         }
  87         return topotest.json_cmp(output, expected)
  88
  89     test_func = functools.partial(_bgp_peer_group_configured)
  90     success, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5)
  91
  92     assert result is None, 'Failed bgp convergence in "{}"'.format(tgen.gears["r1"])
  93
  94
  95 if __name__ == "__main__":
  96     args = ["-s"] + sys.argv[1:]
  97     sys.exit(pytest.main(args))