tests/topotests/bgp_peer_group/test_bgp_peer-group.py

   1 #!/usr/bin/env python
   2 # SPDX-License-Identifier: ISC
   3
   4 #
   5 # Copyright (c) 2021 by
   6 # Donatas Abraitis <donatas.abraitis@gmail.com>
   7 #
   8
   9 """
  10 Test if peer-group works for numbered and unnumbered configurations.
  11 """
  12
  13 import os
  14 import sys
  15 import json
  16 import pytest
  17 import functools
  18
  19 CWD = os.path.dirname(os.path.realpath(__file__))
  20 sys.path.append(os.path.join(CWD, "../"))
  21
  22 # pylint: disable=C0413
  23 from lib import topotest
  24 from lib.topogen import Topogen, TopoRouter, get_topogen
  25
  26
  27 pytestmark = [pytest.mark.bgpd]
  28
  29
  30 def build_topo(tgen):
  31     for routern in range(1, 4):
  32         tgen.add_router("r{}".format(routern))
  33
  34     switch = tgen.add_switch("s1")
  35     switch.add_link(tgen.gears["r1"])
  36     switch.add_link(tgen.gears["r2"])
  37     switch.add_link(tgen.gears["r3"])
  38
  39
  40 def setup_module(mod):
  41     tgen = Topogen(build_topo, mod.__name__)
  42     tgen.start_topology()
  43
  44     router_list = tgen.routers()
  45
  46     for i, (rname, router) in enumerate(router_list.items(), 1):
  47         router.load_config(
  48             TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
  49         )
  50         router.load_config(
  51             TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname))
  52         )
  53
  54     tgen.start_router()
  55
  56
  57 def teardown_module(mod):
  58     tgen = get_topogen()
  59     tgen.stop_topology()
  60
  61
  62 def test_bgp_peer_group():
  63     tgen = get_topogen()
  64
  65     if tgen.routers_have_failure():
  66         pytest.skip(tgen.errors)
  67
  68     def _bgp_peer_group_configured():
  69         output = json.loads(tgen.gears["r1"].vtysh_cmd("show ip bgp neighbor json"))
  70         expected = {
  71             "r1-eth0": {"peerGroup": "PG", "bgpState": "Established"},
  72             "192.168.255.3": {"peerGroup": "PG", "bgpState": "Established"},
  73         }
  74         return topotest.json_cmp(output, expected)
  75
  76     test_func = functools.partial(_bgp_peer_group_configured)
  77     success, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5)
  78
  79     assert result is None, 'Failed bgp convergence in "{}"'.format(tgen.gears["r1"])
  80
  81
  82 if __name__ == "__main__":
  83     args = ["-s"] + sys.argv[1:]
  84     sys.exit(pytest.main(args))