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Diffstat (limited to 'tests/topotests/pim_basic/test_pim.py')
-rw-r--r-- | tests/topotests/pim_basic/test_pim.py | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/tests/topotests/pim_basic/test_pim.py b/tests/topotests/pim_basic/test_pim.py new file mode 100644 index 0000000..6cea521 --- /dev/null +++ b/tests/topotests/pim_basic/test_pim.py @@ -0,0 +1,248 @@ +#!/usr/bin/env python + +# +# test_pim.py +# +# Copyright (c) 2018 Cumulus Networks, Inc. +# Donald Sharp +# +# Permission to use, copy, modify, and/or distribute this software +# for any purpose with or without fee is hereby granted, provided +# that the above copyright notice and this permission notice appear +# in all copies. +# +# THE SOFTWARE IS PROVIDED "AS IS" AND Cumulus Networks DISCLAIMS ALL WARRANTIES +# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NETDEF BE LIABLE FOR +# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY +# DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, +# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS +# ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE +# OF THIS SOFTWARE. +# + +""" +test_pim.py: Test pim +""" + +import os +import sys +import pytest +import json +from functools import partial + +pytestmark = pytest.mark.pimd + +CWD = os.path.dirname(os.path.realpath(__file__)) +sys.path.append(os.path.join(CWD, "../")) + +# pylint: disable=C0413 +from lib import topotest +from lib.topogen import Topogen, TopoRouter, get_topogen +from lib.topolog import logger + + +pytestmark = [pytest.mark.pimd] + + +def build_topo(tgen): + "Build function" + + for routern in range(1, 4): + tgen.add_router("r{}".format(routern)) + + tgen.add_router("rp") + + # rp ------ r1 -------- r2 + # \ + # --------- r3 + # r1 -> .1 + # r2 -> .2 + # rp -> .3 + # r3 -> .4 + # loopback network is 10.254.0.X/32 + # + # r1 <- sw1 -> r2 + # r1-eth0 <-> r2-eth0 + # 10.0.20.0/24 + sw = tgen.add_switch("sw1") + sw.add_link(tgen.gears["r1"]) + sw.add_link(tgen.gears["r2"]) + + # r1 <- sw2 -> rp + # r1-eth1 <-> rp-eth0 + # 10.0.30.0/24 + sw = tgen.add_switch("sw2") + sw.add_link(tgen.gears["r1"]) + sw.add_link(tgen.gears["rp"]) + + # 10.0.40.0/24 + sw = tgen.add_switch("sw3") + sw.add_link(tgen.gears["r1"]) + sw.add_link(tgen.gears["r3"]) + + +def setup_module(mod): + "Sets up the pytest environment" + tgen = Topogen(build_topo, mod.__name__) + tgen.start_topology() + + # For all registered routers, load the zebra configuration file + for rname, router in tgen.routers().items(): + router.load_config( + TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname)) + ) + router.load_config( + TopoRouter.RD_PIM, os.path.join(CWD, "{}/pimd.conf".format(rname)) + ) + router.load_config( + TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname)) + ) + + # After loading the configurations, this function loads configured daemons. + tgen.start_router() + # tgen.mininet_cli() + + +def teardown_module(mod): + "Teardown the pytest environment" + tgen = get_topogen() + + # This function tears down the whole topology. + tgen.stop_topology() + + +def test_pim_rp_setup(): + "Ensure basic routing has come up and the rp has an outgoing interface" + # Ensure rp and r1 establish pim neighbor ship and bgp has come up + # Finally ensure that the rp has an outgoing interface on r1 + tgen = get_topogen() + + r1 = tgen.gears["r1"] + json_file = "{}/{}/rp-info.json".format(CWD, r1.name) + expected = json.loads(open(json_file).read()) + + test_func = partial( + topotest.router_json_cmp, r1, "show ip pim rp-info json", expected + ) + _, result = topotest.run_and_expect(test_func, None, count=15, wait=5) + assertmsg = '"{}" JSON output mismatches'.format(r1.name) + assert result is None, assertmsg + # tgen.mininet_cli() + + +def test_pim_send_mcast_stream(): + "Establish a Multicast stream from r2 -> r1 and then ensure S,G is created as appropriate" + logger.info("Establish a Mcast stream from r2->r1 and then ensure S,G created") + + tgen = get_topogen() + + if tgen.routers_have_failure(): + pytest.skip(tgen.errors) + + rp = tgen.gears["rp"] + r3 = tgen.gears["r3"] + r2 = tgen.gears["r2"] + r1 = tgen.gears["r1"] + + # Let's establish a S,G stream from r2 -> r1 + CWD = os.path.dirname(os.path.realpath(__file__)) + r2.run( + "{}/mcast-tx.py --ttl 5 --count 5 --interval 10 229.1.1.1 r2-eth0 > /tmp/bar".format( + CWD + ) + ) + # And from r3 -> r1 + r3.run( + "{}/mcast-tx.py --ttl 5 --count 5 --interval 10 229.1.1.1 r3-eth0 > /tmp/bar".format( + CWD + ) + ) + + # Let's see that it shows up and we have established some basic state + out = r1.vtysh_cmd("show ip pim upstream json", isjson=True) + expected = { + "229.1.1.1": { + "10.0.20.2": { + "firstHopRouter": 1, + "joinState": "NotJoined", + "regState": "RegPrune", + "inboundInterface": "r1-eth0", + } + } + } + + test_func = partial( + topotest.router_json_cmp, r1, "show ip pim upstream json", expected + ) + _, result = topotest.run_and_expect(test_func, None, count=20, wait=1) + assert result is None, "failed to converge pim" + # tgen.mininet_cli() + + +def test_pim_rp_sees_stream(): + "Ensure that the RP sees the stream and has acted accordingly" + tgen = get_topogen() + + rp = tgen.gears["rp"] + json_file = "{}/{}/upstream.json".format(CWD, rp.name) + expected = json.loads(open(json_file).read()) + + test_func = partial( + topotest.router_json_cmp, rp, "show ip pim upstream json", expected + ) + _, result = topotest.run_and_expect(test_func, None, count=20, wait=0.5) + assertmsg = '"{}" JSON output mismatches'.format(rp.name) + assert result is None, assertmsg + + +def test_pim_igmp_report(): + "Send a igmp report from r2->r1 and ensure that the *,G state is created on r1" + logger.info("Send a igmp report from r2-r1 and ensure *,G created") + + tgen = get_topogen() + + if tgen.routers_have_failure(): + pytest.skip(tgen.errors) + + r2 = tgen.gears["r2"] + r1 = tgen.gears["r1"] + + # Let's send a igmp report from r2->r1 + cmd = [os.path.join(CWD, "mcast-rx.py"), "229.1.1.2", "r2-eth0"] + p = r2.popen(cmd) + try: + expected = { + "229.1.1.2": { + "*": { + "sourceIgmp": 1, + "joinState": "Joined", + "regState": "RegNoInfo", + "sptBit": 0, + } + } + } + test_func = partial( + topotest.router_json_cmp, r1, "show ip pim upstream json", expected + ) + _, result = topotest.run_and_expect(test_func, None, count=5, wait=0.5) + assertmsg = '"{}" JSON output mismatches'.format(r1.name) + assert result is None, assertmsg + finally: + if p: + p.terminate() + p.wait() + + +def test_memory_leak(): + "Run the memory leak test and report results." + tgen = get_topogen() + if not tgen.is_memleak_enabled(): + pytest.skip("Memory leak test/report is disabled") + + tgen.report_memory_leaks() + + +if __name__ == "__main__": + args = ["-s"] + sys.argv[1:] + sys.exit(pytest.main(args)) |