def test_bfd_loss_intermediate():
"""
Assert that BFD notices the bfd link down failure.
but BGP entries should still be present
"""
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
logger.info('removing IPv6 address from r2 to simulate loss of connectivity')
# Disable r2-eth0 ipv6 address
cmd = 'vtysh -c \"configure terminal\" -c \"interface r2-eth1\" -c "no ipv6 address 2001:db8:4::2/64\"'
tgen.net['r2'].cmd(cmd)
# Wait the minimum time we can before checking that BGP/BFD
# converged.
logger.info('waiting for BFD converge down')
# Check that BGP converged quickly.
for router in tgen.routers().values():
if router.name == 'r2':
continue
json_file = '{}/{}/peers_down.json'.format(CWD, router.name)
expected = json.loads(open(json_file).read())
test_func = partial(topotest.router_json_cmp,
router, 'show bfd peers json', expected)
_, result = topotest.run_and_expect(test_func, None, count=8, wait=0.5)
assertmsg = '"{}" JSON output mismatches'.format(router.name)
assert result is None, assertmsg
logger.info('waiting for BGP entries to become stale')
for router in tgen.routers().values():
if router.name == 'r2':
continue
json_file = '{}/{}/bgp_ipv6_routes_down.json'.format(CWD, router.name)
expected = json.loads(open(json_file).read())
test_func = partial(topotest.router_json_cmp,
router, 'show bgp ipv6 json', expected)
_, result = topotest.run_and_expect(test_func, None, count=50, wait=1)
assertmsg = '"{}" JSON output mismatches'.format(router.name)
assert result is None, assertmsg
logger.info("Checking IPv6 routes on r1 should still be present")
for router in tgen.routers().values():
if router.name == 'r2':
continue
if router.name == 'r3':
continue
json_file = '{}/r1/ipv6_routes.json'.format(CWD)
expected = json.loads(open(json_file).read())
test_func = partial(topotest.router_json_cmp,
router, 'show ipv6 route json', expected)
_, result = topotest.run_and_expect(test_func, None, count=30,
wait=0.5)
assertmsg = '"{}" JSON output mismatches'.format(router.name)
assert result is None, assertmsg
def test_ospf_link_down():
"Test OSPF convergence after a link goes down"
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip('skipped because of router(s) failure')
# Simulate a network down event on router3 switch3 interface.
router3 = tgen.gears['r3']
topotest.interface_set_status(router3, 'r3-eth0', ifaceaction=False, vrf_name='r3-cust1')
# Expect convergence on all routers
for rname, router in tgen.routers().iteritems():
logger.info('Waiting for router "%s" convergence after link failure', rname)
# Load expected results from the command
reffile = os.path.join(CWD, '{}/ospfroute_down.txt'.format(rname))
expected = open(reffile).read()
# Run test function until we get an result. Wait at most 60 seconds.
test_func = partial(topotest.router_output_cmp,
router,
'show ip ospf vrf {0}-cust1 route'.format(rname),
expected)
result, diff = topotest.run_and_expect(test_func, '',
count=140, wait=0.5)
assertmsg = 'OSPF did not converge on {}:\n{}'.format(rname, diff)
assert result, assertmsg
def test_bgp_convergence():
"Test for BGP topology convergence"
tgen = get_topogen()
# uncomment if you want to troubleshoot
# tgen.mininet_cli()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
logger.info('waiting for bgp convergence')
# Expected result
router = tgen.gears['r1']
if router.has_version('<', '3.0'):
reffile = os.path.join(CWD, 'r1/summary20.txt')
else:
reffile = os.path.join(CWD, 'r1/summary.txt')
expected = json.loads(open(reffile).read())
test_func = functools.partial(topotest.router_json_cmp,
router, 'show bgp vrf r1-cust1 summary json', expected)
_, res = topotest.run_and_expect(test_func, None, count=90, wait=0.5)
assertmsg = 'BGP router network did not converge'
assert res is None, assertmsg
def test_bgp_fast_reconvergence():
"Assert that BGP is converging after setting a link down."
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
logger.info('waiting for BGP re convergence')
# Check that BGP converged quickly.
for router in tgen.routers().values():
ref_file = '{}/{}/bgp_prefixes.json'.format(CWD, router.name)
expected = json.loads(open(ref_file).read())
# Load the same file as previous test, but set networks to None
# to test absence.
if router.name == 'r1':
expected['routes']['10.254.254.2/32'] = None
expected['routes']['10.254.254.3/32'] = None
expected['routes']['10.254.254.4/32'] = None
else:
expected['routes']['10.254.254.1/32'] = None
test_func = partial(topotest.router_json_cmp,
router, 'show ip bgp vrf {}-cust1 json'.format(router.name), expected)
_, res = topotest.run_and_expect(
test_func,
None,
count=3,
wait=1
)
assertmsg = '{}: bgp did not converge'.format(router.name)
assert res is None, assertmsg
def test_protocols_convergence():
"""
Assert that all protocols have converged before checking for the BFD
statuses as they depend on it.
"""
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
# Check IPv6 routing tables.
logger.info("Checking IPv6 routes for convergence")
for router in tgen.routers().values():
if router.name == 'r2':
continue
json_file = '{}/{}/ipv6_routes.json'.format(CWD, router.name)
if not os.path.isfile(json_file):
logger.info('skipping file {}'.format(json_file))
continue
expected = json.loads(open(json_file).read())
test_func = partial(topotest.router_json_cmp,
router, 'show ipv6 route json', expected)
_, result = topotest.run_and_expect(test_func, None, count=40,
wait=0.5)
assertmsg = '"{}" JSON output mismatches'.format(router.name)
assert result is None, assertmsg
def test_bgp_ecmp():
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
expect = {
'routerId': '10.0.255.1',
'routes': {
},
}
for net in range(1, 5):
for subnet in range(0, 10):
netkey = '10.20{}.{}.0/24'.format(net, subnet)
expect['routes'][netkey] = []
for _ in range(0, 10):
peer = {'multipath': True, 'valid': True}
expect['routes'][netkey].append(peer)
test_func = functools.partial(topotest.router_json_cmp,
tgen.gears['r1'], 'show ip bgp json', expect)
_, res = topotest.run_and_expect(test_func, None, count=10, wait=0.5)
assertmsg = 'expected multipath routes in "show ip bgp" output'
assert res is None, assertmsg
def test_bfd_comes_back_again():
"""
Assert that BFD notices the bfd link up
and that ipv6 entries appear back
"""
tgen = get_topogen()
logger.info('re-adding IPv6 address from r2 to simulate connectivity is back')
# adds back r2-eth0 ipv6 address
cmd = 'vtysh -c \"configure terminal\" -c \"interface r2-eth1\" -c "ipv6 address 2001:db8:4::2/64\"'
tgen.net['r2'].cmd(cmd)
# Wait the minimum time we can before checking that BGP/BFD
# converged.
logger.info('waiting for BFD to converge up')
# Check that BGP converged quickly.
for router in tgen.routers().values():
if router.name == 'r2':
continue
json_file = '{}/{}/peers.json'.format(CWD, router.name)
expected = json.loads(open(json_file).read())
test_func = partial(topotest.router_json_cmp,
router, 'show bfd peers json', expected)
_, result = topotest.run_and_expect(test_func, None, count=8, wait=0.5)
assertmsg = '"{}" JSON output mismatches'.format(router.name)
assert result is None, assertmsg
def test_isis_convergence():
"Wait for the protocol to converge before starting to test"
tgen = get_topogen()
# Don't run this test if we have any failure.
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
logger.info("waiting for ISIS protocol to converge")
# Code to generate the json files.
# for rname, router in tgen.routers().iteritems():
# open('/tmp/{}_topology.json'.format(rname), 'w').write(
# json.dumps(show_isis_topology(router), indent=2, sort_keys=True)
# )
for rname, router in tgen.routers().iteritems():
filename = '{0}/{1}/{1}_topology.json'.format(CWD, rname)
expected = json.loads(open(filename).read())
def compare_isis_topology(router, expected):
"Helper function to test ISIS topology convergence."
actual = show_isis_topology(router)
return topotest.json_cmp(actual, expected)
test_func = functools.partial(compare_isis_topology, router, expected)
(result, diff) = topotest.run_and_expect(test_func, None,
wait=0.5, count=120)
assert result, 'ISIS did not converge on {}:\n{}'.format(rname, diff)
def test_evpn_df():
"""
1. Check the DF role on all the PEs on rack-1.
2. Increase the DF preference on the non-DF and check if it becomes
the DF winner.
"""
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
# We will run the tests on just one ES
esi = host_es_map.get("hostd11")
intf = "hostbond1"
tors = []
tors.append(tgen.gears["torm11"])
tors.append(tgen.gears["torm12"])
df_node = "torm11"
# check roles on rack-1
for tor in tors:
role = "DF" if tor.name == df_node else "nonDF"
test_fn = partial(check_df_role, tor, esi, role)
_, result = topotest.run_and_expect(test_fn, None, count=20, wait=3)
assertmsg = '"{}" DF role incorrect'.format(tor.name)
assert result is None, assertmsg
# change df preference on the nonDF to make it the df
torm12 = tgen.gears["torm12"]
torm12.vtysh_cmd("conf\ninterface %s\nevpn mh es-df-pref %d" % (intf, 60000))
df_node = "torm12"
# re-check roles on rack-1; we should have a new winner
for tor in tors:
role = "DF" if tor.name == df_node else "nonDF"
test_fn = partial(check_df_role, tor, esi, role)
_, result = topotest.run_and_expect(test_fn, None, count=20, wait=3)
assertmsg = '"{}" DF role incorrect'.format(tor.name)
assert result is None, assertmsg
def check_mcast_entry(entry, mcastaddr, pimrp):
"Helper function to check RP"
tgen = get_topogen()
logger.info(
"Testing PIM RP selection for ACL {} entry using {}".format(entry, mcastaddr)
)
with McastTesterHelper(tgen) as helper:
helper.run("h2", ["--send=0.7", mcastaddr, "h2-eth0"])
helper.run("h1", [mcastaddr, "h1-eth0"])
logger.info("mcast join and source for {} started".format(mcastaddr))
# tgen.mininet_cli()
router = tgen.gears["r1"]
reffile = os.path.join(CWD, "r1/acl_{}_pim_join.json".format(entry))
expected = json.loads(open(reffile).read())
logger.info("verifying pim join on r1 for {}".format(mcastaddr))
test_func = functools.partial(
topotest.router_json_cmp, router, "show ip pim join json", expected
)
_, res = topotest.run_and_expect(test_func, None, count=60, wait=2)
assertmsg = "PIM router r1 did not show join status"
assert res is None, assertmsg
logger.info("verifying pim join on PIM RP {} for {}".format(pimrp, mcastaddr))
router = tgen.gears[pimrp]
reffile = os.path.join(CWD, "{}/acl_{}_pim_join.json".format(pimrp, entry))
expected = json.loads(open(reffile).read())
test_func = functools.partial(
topotest.router_json_cmp, router, "show ip pim join json", expected
)
_, res = topotest.run_and_expect(test_func, None, count=60, wait=2)
assertmsg = "PIM router {} did not get selected as the PIM RP".format(pimrp)
assert res is None, assertmsg
return
def test_protocols_convergence():
"""
Assert that all protocols have converged
statuses as they depend on it.
"""
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
# Check IPv4 routing tables.
logger.info("Checking IPv4 routes for convergence")
for router in tgen.routers().values():
json_file = '{}/{}/ipv4_routes.json'.format(CWD, router.name)
if not os.path.isfile(json_file):
logger.info('skipping file {}'.format(json_file))
continue
expected = json.loads(open(json_file).read())
test_func = partial(topotest.router_json_cmp,
router, 'show ip route vrf {}-cust1 json'.format(router.name), expected)
_, result = topotest.run_and_expect(test_func, None, count=160,
wait=0.5)
assertmsg = '"{}" JSON output mismatches'.format(router.name)
assert result is None, assertmsg
# Check IPv6 routing tables.
logger.info("Checking IPv6 routes for convergence")
for router in tgen.routers().values():
json_file = '{}/{}/ipv6_routes.json'.format(CWD, router.name)
if not os.path.isfile(json_file):
logger.info('skipping file {}'.format(json_file))
continue
expected = json.loads(open(json_file).read())
test_func = partial(topotest.router_json_cmp,
router, 'show ipv6 route vrf {}-cust1 json'.format(router.name), expected)
_, result = topotest.run_and_expect(test_func, None, count=160,
wait=0.5)
assertmsg = '"{}" JSON output mismatches'.format(router.name)
assert result is None, assertmsg
def expect_loopback_route(router, iptype, route, proto):
"Wait until route is present on RIB for protocol."
logger.info('waiting route {} in {}'.format(route, router))
test_func = partial(
topotest.router_json_cmp,
tgen.gears[router],
'show {} route json'.format(iptype),
{ route: [{ 'protocol': proto }] }
)
_, result = topotest.run_and_expect(test_func, None, count=130, wait=1)
assertmsg = '"{}" OSPF convergence failure'.format(router)
assert result is None, assertmsg
def expect_neighbor_down(router, interface, peer):
"Wait until peer is present on interface."
logger.info("waiting peer {} in {} to disappear".format(
peer, interface))
test_func = partial(topotest.router_json_cmp, tgen.gears[router],
"show ip pim neighbor json",
{interface: {
peer: None
}})
_, result = topotest.run_and_expect(test_func, None, count=4, wait=1)
assertmsg = '"{}" PIM convergence failure'.format(router)
assert result is None, assertmsg
def expect_route(router, route, metric):
"Test OSPF6 route existence."
logger.info("waiting OSPFv3 router '{}' routes".format(router))
test_func = partial(
topotest.router_json_cmp,
tgen.gears[router],
"show ipv6 route json",
{route: [{"metric": metric}]},
)
_, result = topotest.run_and_expect(test_func, None, count=4, wait=1)
assertmsg = '"{}" convergence failure'.format(router)
assert result is None, assertmsg
def test_ospf_json():
"Test 'show ip ospf json' output for coherency."
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip('skipped because of router(s) failure')
for rname, router in tgen.routers().iteritems():
logger.info('Comparing router "%s" "show ip ospf vrf %s-cust1 json" output', router.name, router.name)
expected = {
'{}-cust1'.format(router.name) : {
'vrfName': '{}-cust1'.format(router.name),
'routerId': '10.0.255.{}'.format(rname[1:]),
'tosRoutesOnly': True,
'rfc2328Conform': True,
'spfScheduleDelayMsecs': 0,
'holdtimeMinMsecs': 50,
'holdtimeMaxMsecs': 5000,
'lsaMinIntervalMsecs': 5000,
'lsaMinArrivalMsecs': 1000,
'writeMultiplier': 20,
'refreshTimerMsecs': 10000,
'asbrRouter': 'injectingExternalRoutingInformation',
'attachedAreaCounter': 1,
'areas': {}
}
}
# Area specific additional checks
if router.name == 'r1' or router.name == 'r2' or router.name == 'r3':
expected['{}-cust1'.format(router.name)]['areas']['0.0.0.0'] = {
'areaIfActiveCounter': 2,
'areaIfTotalCounter': 2,
'authentication': 'authenticationNone',
'backbone': True,
'lsaAsbrNumber': 0,
'lsaNetworkNumber': 1,
'lsaNssaNumber': 0,
'lsaNumber': 4,
'lsaOpaqueAreaNumber': 0,
'lsaOpaqueLinkNumber': 0,
'lsaRouterNumber': 3,
'lsaSummaryNumber': 0,
'nbrFullAdjacentCounter': 2,
}
test_func = partial(topotest.router_json_cmp,
router,
'show ip ospf vrf {0}-cust1 json'.format(rname),
expected)
_, diff = topotest.run_and_expect(test_func, None,
count=10, wait=0.5)
assertmsg = '"{}" JSON output mismatches'.format(rname)
assert diff is None, assertmsg
def expect_ospf6_route_types(router, expected_summary):
"Expect the correct route types."
logger.info("waiting OSPFv3 router '{}'".format(router))
test_func = partial(
topotest.router_json_cmp,
tgen.gears[router],
"show ipv6 ospf6 route summary json",
expected_summary,
)
_, result = topotest.run_and_expect(test_func, None, count=10, wait=1)
assertmsg = '"{}" convergence failure'.format(router)
assert result is None, assertmsg
def test_ospf_json():
"Test 'show ip ospf json' output for coherency."
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip('skipped because of router(s) failure')
for rname, router in tgen.routers().iteritems():
logger.info(
'Comparing router "%s" "show ip ospf vrf %s-cust1 json" output',
router.name, router.name)
expected = {
'{}-cust1'.format(router.name): {
'vrfName': '{}-cust1'.format(router.name),
'routerId': '10.0.255.{}'.format(rname[1:]),
'tosRoutesOnly': True,
'rfc2328Conform': True,
'spfScheduleDelayMsecs': 0,
'holdtimeMinMsecs': 50,
'holdtimeMaxMsecs': 5000,
'lsaMinIntervalMsecs': 5000,
'lsaMinArrivalMsecs': 1000,
'writeMultiplier': 20,
'refreshTimerMsecs': 10000,
'asbrRouter': 'injectingExternalRoutingInformation',
'attachedAreaCounter': 1,
'areas': {}
}
}
# Area specific additional checks
if router.name == 'r1' or router.name == 'r2' or router.name == 'r3':
expected['{}-cust1'.format(router.name)]['areas']['0.0.0.0'] = {
'areaIfActiveCounter': 2,
'areaIfTotalCounter': 2,
'authentication': 'authenticationNone',
'backbone': True,
'lsaAsbrNumber': 0,
'lsaNetworkNumber': 1,
'lsaNssaNumber': 0,
'lsaNumber': 4,
'lsaOpaqueAreaNumber': 0,
'lsaOpaqueLinkNumber': 0,
'lsaRouterNumber': 3,
'lsaSummaryNumber': 0,
'nbrFullAdjacentCounter': 2,
}
test_func = partial(topotest.router_json_cmp, router,
'show ip ospf vrf {0}-cust1 json'.format(rname),
expected)
_, diff = topotest.run_and_expect(test_func, None, count=10, wait=0.5)
assertmsg = '"{}" JSON output mismatches'.format(rname)
assert diff is None, assertmsg
def expect_neighbor_full(router, neighbor):
"Wait until OSPFv3 convergence."
logger.info("waiting OSPFv3 router '{}'".format(router))
test_func = partial(
topotest.router_json_cmp,
tgen.gears[router],
"show ipv6 ospf6 vrf {0}-cust1 neighbor json".format(router),
{"neighbors": [{"neighborId": neighbor, "state": "Full"}]},
)
_, result = topotest.run_and_expect(test_func, None, count=130, wait=1)
assertmsg = '"{}" convergence failure'.format(router)
assert result is None, assertmsg
def expect_route(router_name, routes_expected):
"Helper function to avoid repeated code."
tgen = get_topogen()
test_func = functools.partial(
topotest.router_json_cmp,
tgen.gears[router_name],
"show ip route json",
routes_expected,
)
_, result = topotest.run_and_expect(test_func, None, count=120, wait=1)
assertmsg = '"{}" BGP convergence failure'.format(router_name)
assert result is None, assertmsg
def run_one_setup(r1, s):
"Run one ecmp config"
# Extract params
expected_installed = s["expect_in"]
expected_removed = s["expect_rem"]
retries = s["retries"]
wait = s["wait"]
for d in expected_installed["routes"]:
if d["type"] == "sharp":
count = d["rib"]
break
logger.info("Testing {} routes X {} ecmp".format(count, s["ecmp"]))
r1.vtysh_cmd(
"sharp install route 1.0.0.0 \
nexthop-group {} {}".format(s["nhg"], count),
isjson=False,
)
test_func = partial(topotest.router_json_cmp, r1,
"show ip route summary json", expected_installed)
success, result = topotest.run_and_expect(test_func, None, retries, wait)
assert success, "Route scale test install failed:\n{}".format(result)
output = r1.vtysh_cmd("sharp data route", isjson=False)
logger.info("{} routes X {} ecmp installed".format(count, s["ecmp"]))
logger.info(output)
r1.vtysh_cmd("sharp remove route 1.0.0.0 {}".format(count), isjson=False)
test_func = partial(topotest.router_json_cmp, r1,
"show ip route summary json", expected_removed)
success, result = topotest.run_and_expect(test_func, None, retries, wait)
assert success, "Route scale test remove failed:\n{}".format(result)
output = r1.vtysh_cmd("sharp data route", isjson=False)
logger.info("{} routes x {} ecmp removed".format(count, s["ecmp"]))
logger.info(output)
def test_bgp_delayopen_without():
"Optional test of BGP functionality and behaviour without DelayOpenTimer enabled to establish a reference for following tests"
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
# part 1: no delay r1 <=> no delay r4
logger.info("Starting optional test of BGP functionality without DelayOpenTimer enabled to establish a reference for following tests")
# 1.1 enable peering shutdown
logger.info("Enable shutdown of peering between r1 and r4")
tgen.net["r1"].cmd('vtysh -c "conf t" -c "router bgp 65000" -c "neighbor 192.168.101.2 shutdown"')
tgen.net["r4"].cmd('vtysh -c "conf t" -c "router bgp 65100" -c "neighbor 192.168.101.1 shutdown"')
# 1.2 wait for peers to shut down (poll output)
for router_num in [1, 4]:
logger.info("Checking BGP summary after enabling shutdown of peering on r{}".format(router_num))
router = tgen.gears["r{}".format(router_num)]
reffile = os.path.join(CWD, "r{}/bgp_delayopen_summary_shutdown.json".format(router_num))
expected = json.loads(open(reffile).read())
test_func = functools.partial(topotest.router_json_cmp, router, "show ip bgp summary json", expected)
_, res = topotest.run_and_expect(test_func, None, count=3, wait=1)
assertmsg = "BGP session on r{} did not shut down peer".format(router_num)
assert res is None, assertmsg
# 1.3 disable peering shutdown
logger.info("Disable shutdown of peering between r1 and r4")
tgen.net["r1"].cmd('vtysh -c "conf t" -c "router bgp 65000" -c "no neighbor 192.168.101.2 shutdown"')
tgen.net["r4"].cmd('vtysh -c "conf t" -c "router bgp 65100" -c "no neighbor 192.168.101.1 shutdown"')
# 1.4 wait for peers to establish connection (poll output)
for router_num in [1, 4]:
logger.info("Checking BGP summary after disabling shutdown of peering on r{}".format(router_num))
router = tgen.gears["r{}".format(router_num)]
reffile = os.path.join(CWD, "r{}/bgp_delayopen_summary_established.json".format(router_num))
expected = json.loads(open(reffile).read())
test_func = functools.partial(topotest.router_json_cmp, router, "show ip bgp summary json", expected)
_, res = topotest.run_and_expect(test_func, None, count=5, wait=1)
assertmsg = "BGP session on r{} did not establish a connection with peer".format(router_num)
assert res is None, assertmsg
def router_compare_json_output(rname, command, reference, tries):
"Compare router JSON output"
logger.info('Comparing router "%s" "%s" output', rname, command)
tgen = get_topogen()
filename = "{}/{}/{}".format(CWD, rname, reference)
expected = json.loads(open(filename).read())
test_func = partial(topotest.router_json_cmp, tgen.gears[rname], command, expected)
_, diff = topotest.run_and_expect(test_func, None, count=tries, wait=0.5)
assertmsg = '"{}" JSON output mismatches the expected result'.format(rname)
assert diff is None, assertmsg
def test_bgp_disable_norib_routes():
"Test Routes in Zebra and BGP with the 'bgp-norib' configuration"
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
# Checking local BGP routes - they need to be gone from Zebra
logger.info(
"Checking Zebra routes after removing bgp shutdown on router r1")
router = tgen.gears["r1"]
reffile = os.path.join(CWD, "r1/ip_route.json")
expected = json.loads(open(reffile).read())
test_func = functools.partial(topotest.router_json_cmp, router,
"show ip route json", expected)
_, res = topotest.run_and_expect(test_func, None, count=30, wait=2)
assertmsg = "Zebra IPv4 Routes wrong after removing the 'bgp no-rib'"
assert res is None, assertmsg
# Check BGP Summary on local and remote routers
for rtrNum in [1, 2, 4]:
logger.info(
"Checking BGP Summary after removing the 'bgp no-rib' on router r1 on router r{}"
.format(rtrNum))
router = tgen.gears["r{}".format(rtrNum)]
reffile = os.path.join(CWD, "r{}/bgp_summary.json".format(rtrNum))
expected = json.loads(open(reffile).read())
test_func = functools.partial(topotest.router_json_cmp, router,
"show ip bgp summary json", expected)
_, res = topotest.run_and_expect(test_func, None, count=30, wait=2)
assertmsg = "BGP sessions on router R{} has incorrect routes after removing 'bgp no-rib on r1'".format(
rtrNum)
assert res is None, assertmsg
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 check_ping(name, dest_addr, expect_connected):
def _check(name, dest_addr, match):
tgen = get_topogen()
output = tgen.gears[name].run("ping {} -c 1 -w 1".format(dest_addr))
logger.info(output)
assert match in output, "ping fail"
match = "{} packet loss".format("0%" if expect_connected else "100%")
logger.info("[+] check {} {} {}".format(name, dest_addr, match))
tgen = get_topogen()
func = functools.partial(_check, name, dest_addr, match)
success, result = topotest.run_and_expect(func, None, count=10, wait=0.5)
assert result is None, "Failed"
def test_bgp_as_wide_bgp_identifier():
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
def _bgp_converge(router):
output = json.loads(
router.vtysh_cmd("show ip bgp neighbor 192.168.255.1 json"))
expected = {"192.168.255.1": {"bgpState": "Established"}}
return topotest.json_cmp(output, expected)
def _bgp_failed(router):
output = json.loads(
router.vtysh_cmd("show ip bgp neighbor 192.168.255.1 json"))
expected = {
"192.168.255.1": {
"lastNotificationReason":
"OPEN Message Error/Bad BGP Identifier"
}
}
return topotest.json_cmp(output, expected)
test_func = functools.partial(_bgp_converge, tgen.gears["r1"])
success, result = topotest.run_and_expect(test_func,
None,
count=260,
wait=0.5)
assert result is None, 'Failed to converge: "{}"'.format(tgen.gears["r1"])
test_func = functools.partial(_bgp_failed, tgen.gears["r3"])
success, result = topotest.run_and_expect(test_func,
None,
count=260,
wait=0.5)
assert result is None, 'Bad BGP Identifier notification not sent: "{}"'.format(
tgen.gears["r3"])
def expect_bfd_peer_settings(router, settings):
"Expect the following BFD configuration"
logger.info("Verifying BFD peer {} in {}".format(
settings["peer"], router))
test_func = partial(
topotest.router_json_cmp,
tgen.gears[router],
"show bfd peers json",
[settings],
)
_, result = topotest.run_and_expect(test_func, None, count=4, wait=1)
assertmsg = '"{}" BFD convergence failure'.format(router)
assert result is None, assertmsg
def router_compare_json_output(rname, command, reference):
"Compare router JSON output"
logger.info('Comparing router "%s" "%s" output', rname, command)
tgen = get_topogen()
expected = json.loads(reference)
# Run test function until we get an result. Wait at most 60 seconds.
test_func = partial(topotest.router_json_cmp, tgen.gears[rname], command, expected)
_, diff = topotest.run_and_expect(test_func, None, count=120, wait=0.5)
assertmsg = '"{}" JSON output mismatches the expected result'.format(rname)
assert diff is None, assertmsg
def expect_bfd_configuration(router):
"Load JSON file and compare with 'show bfd peer json'"
logger.info('waiting BFD configuration on router {}'.format(router))
bfd_config = json.loads(open('{}/{}/bfd-peers.json'.format(CWD, router)).read())
test_func = partial(
topotest.router_json_cmp,
tgen.gears[router],
'show bfd peers json',
bfd_config
)
_, result = topotest.run_and_expect(test_func, None, count=130, wait=1)
assertmsg = '"{}" BFD configuration failure'.format(router)
assert result is None, assertmsg
def test_bgp_aggregator_zero():
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
def _bgp_converge():
output = json.loads(
tgen.gears["r1"].vtysh_cmd("show ip bgp neighbor 10.0.0.2 json"))
expected = {
"10.0.0.2": {
"bgpState": "Established",
"addressFamilyInfo": {
"ipv4Unicast": {
"acceptedPrefixCounter": 1
}
},
}
}
return topotest.json_cmp(output, expected)
test_func = functools.partial(_bgp_converge)
success, result = topotest.run_and_expect(test_func,
None,
count=60,
wait=0.5)
assert result is None, "More than one prefix seen at r1, SHOULD be only one."
def _bgp_has_correct_routes_without_asn_0():
output = json.loads(tgen.gears["r1"].vtysh_cmd("show ip bgp json"))
expected = {"routes": {"192.168.100.101/32": [{"valid": True}]}}
return topotest.json_cmp(output, expected)
test_func = functools.partial(_bgp_has_correct_routes_without_asn_0)
success, result = topotest.run_and_expect(test_func,
None,
count=60,
wait=0.5)
assert result is None, "Failed listing 192.168.100.101/32, SHOULD be accepted."
def test_ospf_kernel_route():
"Test OSPF Segment Routing MPLS route installation"
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
logger.info("--- test OSPF Segment Routing MPLS tables ---")
def show_mpls_table_json_cmp(rt, expected):
"""
Reformat MPLS table output to use a list of labels instead of dict.
Original:
{
"X": {
inLabel: "X",
# ...
}
}
List format:
[
{
inLabel: "X",
}
]
"""
out = rt.vtysh_cmd("show mpls table json", isjson=True)
outlist = []
for key in out.keys():
outlist.append(out[key])
return topotest.json_cmp(outlist, expected)
for rnum in range(1, 5):
router = "r{}".format(rnum)
logger.info('\tRouter "%s"', router)
# Load expected results from the command
reffile = os.path.join(CWD, "{}/zebra_mpls.json".format(router))
expected = json.loads(open(reffile).read())
# Run test function until we get an result. Wait at most 60 seconds.
rt = tgen.gears[router]
test_func = partial(show_mpls_table_json_cmp, rt, expected)
rv, diff = topotest.run_and_expect(test_func, None, count=25, wait=3)
assert rv, "OSPF did not properly instal MPLS table on {}:\n{}".format(
router, diff
)
def test_bgp_aggregate_address_match_and_suppress():
"Test that the command matching-MED-only with suppression works."
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
tgen.gears["r1"].vtysh_multicmd("""
configure terminal
router bgp 65000
address-family ipv4 unicast
no aggregate-address 192.168.0.0/24 matching-MED-only
no aggregate-address 192.168.1.0/24 matching-MED-only
aggregate-address 192.168.0.0/24 matching-MED-only summary-only
aggregate-address 192.168.1.0/24 matching-MED-only summary-only
""")
routes_expected = {
# All MED matches, aggregation must exist.
"192.168.0.0/24": [{
"protocol": "bgp",
"metric": 0
}],
"192.168.0.1/32": None,
"192.168.0.2/32": None,
"192.168.0.3/32": None,
# Non matching MED: aggregation must not exist.
"192.168.1.0/24": None,
"192.168.1.1/32": [{
"protocol": "bgp",
"metric": 10
}],
"192.168.1.2/32": [{
"protocol": "bgp",
"metric": 10
}],
"192.168.1.3/32": [{
"protocol": "bgp",
"metric": 20
}],
}
test_func = functools.partial(
topotest.router_json_cmp,
tgen.gears["r2"],
"show ip route json",
routes_expected,
)
_, result = topotest.run_and_expect(test_func, None, count=120, wait=1)
assertmsg = '"r2" BGP convergence failure'
assert result is None, assertmsg
def test_evpn_uplink_tracking():
'''
1. Wait for access ports to come out of startup-delay
2. disable uplinks and check if access ports have been protodowned
3. enable uplinks and check if access ports have been moved out
of protodown
'''
tgen = get_topogen()
dut_name = "torm11"
dut = tgen.gears[dut_name]
# wait for protodown rc to clear after startup
test_fn = partial(check_protodown_rc, dut, None)
_, result = topotest.run_and_expect(test_fn, None, count=20, wait=3)
assertmsg = '"{}" protodown rc incorrect'.format(dut_name)
assert result is None, assertmsg
# disable the uplinks
dut.run("ip link set %s-eth0 down" % dut_name)
dut.run("ip link set %s-eth1 down" % dut_name)
# check if the access ports have been protodowned
test_fn = partial(check_protodown_rc, dut, "uplinkDown")
_, result = topotest.run_and_expect(test_fn, None, count=20, wait=3)
assertmsg = '"{}" protodown rc incorrect'.format(dut_name)
assert result is None, assertmsg
# enable the uplinks
dut.run("ip link set %s-eth0 up" % dut_name)
dut.run("ip link set %s-eth1 up" % dut_name)
# check if the access ports have been moved out of protodown
test_fn = partial(check_protodown_rc, dut, None)
_, result = topotest.run_and_expect(test_fn, None, count=20, wait=3)
assertmsg = '"{}" protodown rc incorrect'.format(dut_name)
assert result is None, assertmsg
def test_r1_receive_and_advertise_prefix_sid_type1():
tgen = get_topogen()
router = tgen.gears["r1"]
def _check_type1_r1(router, prefix, remoteLabel, labelIndex):
output = router.vtysh_cmd(
"show bgp ipv4 labeled-unicast {} json".format(prefix))
output = json.loads(output)
expected = {
"prefix":
prefix,
"advertisedTo": {
"10.0.0.101": {},
"10.0.0.102": {}
},
"paths": [{
"valid": True,
"remoteLabel": remoteLabel,
"labelIndex": labelIndex,
}],
}
return topotest.json_cmp(output, expected)
test_func = functools.partial(_check_type1_r1, router, "3.0.0.1/32",
800001, 1)
success, result = topotest.run_and_expect(test_func,
None,
count=10,
wait=0.5)
assert result is None, 'Failed _check_type1_r1 in "{}"'.format(router)
test_func = functools.partial(_check_type1_r1, router, "3.0.0.2/32",
800002, 2)
success, result = topotest.run_and_expect(test_func,
None,
count=10,
wait=0.5)
assert result is None, 'Failed _check_type1_r1 in "{}"'.format(router)
def test_vrf_pimreg_interfaces():
"Adding PIM RP in VRF information and verify pimreg interfaces"
tgen = get_topogen()
r1 = tgen.gears["r1"]
r1.vtysh_cmd("conf\ninterface blue\nip pim")
r1.vtysh_cmd(
"conf\nvrf blue\nip pim rp 192.168.0.11 239.100.0.1/32\nexit-vrf")
# Check pimreg11 interface on R1, VRF blue
reffile = os.path.join(CWD, "r1/pim_blue_pimreg11.json")
expected = json.loads(open(reffile).read())
test_func = functools.partial(
topotest.router_json_cmp,
r1,
"show ip pim vrf blue inter pimreg11 json",
expected,
)
_, res = topotest.run_and_expect(test_func, None, count=5, wait=2)
assertmsg = "PIM router R1, VRF blue (table 11) pimreg11 interface missing or incorrect status"
assert res is None, assertmsg
r1.vtysh_cmd("conf\ninterface red\nip pim")
r1.vtysh_cmd(
"conf\nvrf red\nip pim rp 192.168.0.12 239.100.0.1/32\nexit-vrf")
# Check pimreg12 interface on R1, VRF red
reffile = os.path.join(CWD, "r1/pim_red_pimreg12.json")
expected = json.loads(open(reffile).read())
test_func = functools.partial(
topotest.router_json_cmp,
r1,
"show ip pim vrf red inter pimreg12 json",
expected,
)
_, res = topotest.run_and_expect(test_func, None, count=5, wait=2)
assertmsg = "PIM router R1, VRF red (table 12) pimreg12 interface missing or incorrect status"
assert res is None, assertmsg
def compare_ted_json_output(tgen, rname, fileref):
"Compare TED JSON output"
logger.info('Comparing router "%s" TED output', rname)
filename = "{}/reference/{}".format(CWD, fileref)
expected = json.loads(open(filename).read())
command = "show isis mpls-te database json"
# Run test function until we get an result. Wait at most 60 seconds.
test_func = partial(topotest.router_json_cmp, tgen.gears[rname], command, expected)
_, diff = topotest.run_and_expect(test_func, None, count=60, wait=2)
assertmsg = '"{}" TED JSON output mismatches the expected result'.format(rname)
assert diff is None, assertmsg
def check_rib(name, cmd, expected_file):
def _check(name, cmd, expected_file):
logger.info("polling")
tgen = get_topogen()
router = tgen.gears[name]
output = json.loads(router.vtysh_cmd(cmd))
expected = open_json_file("{}/{}".format(CWD, expected_file))
return topotest.json_cmp(output, expected)
logger.info('[+] check {} "{}" {}'.format(name, cmd, expected_file))
tgen = get_topogen()
func = functools.partial(_check, name, cmd, expected_file)
success, result = topotest.run_and_expect(func, None, count=10, wait=0.5)
assert result is None, "Failed"
def cmp_json_output(rname, command, reference, exact=False):
"Compare router JSON output"
logger.info('Comparing router "%s" "%s" output', rname, command)
tgen = get_topogen()
filename = "{}/{}/{}".format(CWD, rname, reference)
expected = json.loads(open(filename).read())
# Run test function until we get an result. Wait at most 60 seconds.
test_func = partial(compare_json_test, tgen.gears[rname], command, expected, exact)
_, diff = topotest.run_and_expect(test_func, None, count=120, wait=0.5)
assertmsg = '"{}" JSON output mismatches the expected result'.format(rname)
assert diff is None, assertmsg
def test_bgp_aggregate_address_matching_med_only():
"Test that the command matching-MED-only works."
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
routes_expected = {
# All MED matches, aggregation must exist.
"192.168.0.0/24": [{
"protocol": "bgp",
"metric": 0
}],
"192.168.0.1/32": [{
"protocol": "bgp",
"metric": 10
}],
"192.168.0.2/32": [{
"protocol": "bgp",
"metric": 10
}],
"192.168.0.3/32": [{
"protocol": "bgp",
"metric": 10
}],
# Non matching MED: aggregation must not exist.
"192.168.1.0/24": None,
"192.168.1.1/32": [{
"protocol": "bgp",
"metric": 10
}],
"192.168.1.2/32": [{
"protocol": "bgp",
"metric": 10
}],
"192.168.1.3/32": [{
"protocol": "bgp",
"metric": 20
}],
}
test_func = functools.partial(
topotest.router_json_cmp,
tgen.gears["r2"],
"show ip route json",
routes_expected,
)
_, result = topotest.run_and_expect(test_func, None, count=20, wait=1)
assertmsg = '"r2" BGP convergence failure'
assert result is None, assertmsg
def router_compare_json_output(rname, command, reference):
"Compare router JSON output"
logger.info('Comparing router "%s" "%s" output', rname, command)
tgen = get_topogen()
filename = '{}/{}/{}'.format(CWD, rname, reference)
expected = json.loads(open(filename).read())
# Run test function until we get an result. Wait at most 80 seconds.
test_func = partial(topotest.router_json_cmp,
tgen.gears[rname], command, expected)
_, diff = topotest.run_and_expect(test_func, None, count=160, wait=0.5)
assertmsg = '"{}" JSON output mismatches the expected result'.format(rname)
assert diff is None, assertmsg
def test_bgp_fast_convergence():
"Assert that BGP is converging before setting a link down."
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
logger.info('waiting for bgp peers converge')
for router in tgen.routers().values():
ref_file = '{}/{}/bgp_prefixes.json'.format(CWD, router.name)
expected = json.loads(open(ref_file).read())
test_func = partial(topotest.router_json_cmp,
router, 'show ip bgp vrf {}-cust1 json'.format(router.name), expected)
_, res = topotest.run_and_expect(test_func, None, count=40, wait=0.5)
assertmsg = '{}: bgp did not converge'.format(router.name)
assert res is None, assertmsg
def test_bgp_convergence():
"Assert that BGP is converging."
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
logger.info('waiting for bgp peers to go up')
for router in tgen.routers().values():
ref_file = '{}/{}/bgp_summary.json'.format(CWD, router.name)
expected = json.loads(open(ref_file).read())
test_func = partial(topotest.router_json_cmp,
router, 'show ip bgp summary json', expected)
_, res = topotest.run_and_expect(test_func, None, count=125, wait=1.0)
assertmsg = '{}: bgp did not converge'.format(router.name)
assert res is None, assertmsg
def test_bfd_connection():
"Assert that the BFD peers can find themselves."
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
logger.info('waiting for bfd peers to go up')
for router in tgen.routers().values():
json_file = '{}/{}/peers.json'.format(CWD, router.name)
expected = json.loads(open(json_file).read())
test_func = partial(topotest.router_json_cmp,
router, 'show bfd peers json', expected)
_, result = topotest.run_and_expect(test_func, None, count=8, wait=0.5)
assertmsg = '"{}" JSON output mismatches'.format(router.name)
assert result is None, assertmsg
def test_ospf_kernel_route():
"Test OSPF kernel route installation"
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip('skipped because of router(s) failure')
rlist = tgen.routers().values()
for router in rlist:
logger.info('Checking OSPF IPv4 kernel routes in "%s"', router.name)
reffile = os.path.join(CWD, '{}/zebraroute.txt'.format(router.name))
expected = open(reffile).read()
# Run test function until we get an result. Wait at most 60 seconds.
test_func = partial(compare_show_ip_route_vrf, router.name, expected)
result, diff = topotest.run_and_expect(test_func, '',
count=140, wait=0.5)
assertmsg = 'OSPF IPv4 route mismatch in router "{}": {}'.format(
router.name, diff)
assert result, assertmsg
def test_lm_proxy():
logger.info('Test: label manager (LDP and BGP)')
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
cmd = 'show mpls ldp binding'
router = tgen.gears['p1']
def check_labels(router, cmd):
output = router.vtysh_cmd(cmd, isjson=False)
logger.info('chk_labels [' + cmd + ']: ' + output)
return output.count('\n')
test_func = partial(check_labels, router, cmd)
result, diff = topotest.run_and_expect(test_func, 12, count=6, wait=30)
assert result, 'wrong labels'
def test_ospf_convergence():
"Test OSPF daemon convergence"
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip('skipped because of router(s) failure')
for rname, router in tgen.routers().iteritems():
logger.info('Waiting for router "%s" convergence', rname)
# Load expected results from the command
reffile = os.path.join(CWD, '{}/ospfroute.txt'.format(rname))
expected = open(reffile).read()
# Run test function until we get an result. Wait at most 60 seconds.
test_func = partial(topotest.router_output_cmp,
router,
'show ip ospf vrf {0}-cust1 route'.format(rname),
expected)
result, diff = topotest.run_and_expect(test_func, '',
count=160, wait=0.5)
assertmsg = 'OSPF did not converge on {}:\n{}'.format(rname, diff)
assert result, assertmsg
def test_bfd_fast_convergence():
"""
Assert that BFD notices the link down after simulating network
failure.
"""
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
# Disable r2-eth0 link
router2 = tgen.gears['r2']
topotest.interface_set_status(router2, 'r2-eth0', ifaceaction=False, vrf_name='r2-cust1')
# Wait the minimum time we can before checking that BGP/BFD
# converged.
logger.info('waiting for BFD converge')
# Check that BGP converged quickly.
for router in tgen.routers().values():
json_file = '{}/{}/peers.json'.format(CWD, router.name)
expected = json.loads(open(json_file).read())
# Load the same file as previous test, but expect R1 to be down.
if router.name == 'r1':
for peer in expected:
if peer['peer'] == '192.168.0.2':
peer['status'] = 'down'
else:
for peer in expected:
if peer['peer'] == '192.168.0.1':
peer['status'] = 'down'
test_func = partial(topotest.router_json_cmp,
router, 'show bfd peers json', expected)
_, res = topotest.run_and_expect(test_func, None, count=20, wait=0.5)
assertmsg = '"{}" JSON output mismatches'.format(router.name)
assert res is None, assertmsg
def test_ospf_kernel_route():
"Test OSPF Segment Routing MPLS route installation"
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
logger.info('--- test OSPF Segment Routing MPLS tables ---')
for rnum in range(1, 5):
router = 'r{}'.format(rnum)
logger.info('\tRouter "%s"', router)
# Load expected results from the command
reffile = os.path.join(CWD, '{}/zebra_mpls.json'.format(router))
expected = open(reffile).read()
# Run test function until we get an result. Wait at most 60 seconds.
test_func = partial(compare_mpls_table, router, expected)
result, diff = topotest.run_and_expect(test_func, '',
count=25, wait=3)
assert result, (
'OSPF did not properly instal MPLS table on {}:\n{}'
).format(router, diff)
def test_bgp_vrf_netns():
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
expect = {
'routerId': '10.0.1.1',
'routes': {
},
}
for subnet in range(0, 10):
netkey = '10.201.{}.0/24'.format(subnet)
expect['routes'][netkey] = []
peer = {'valid': True}
expect['routes'][netkey].append(peer)
test_func = functools.partial(topotest.router_json_cmp,
tgen.gears['r1'], 'show ip bgp vrf r1-cust1 ipv4 json', expect)
_, res = topotest.run_and_expect(test_func, None, count=12, wait=0.5)
assertmsg = 'expected routes in "show ip bgp vrf r1-cust1 ipv4" output'
assert res is None, assertmsg
def test_ospf_sr():
"Test OSPF daemon Segment Routing"
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
logger.info('--- test OSPF Segment Routing Data Base ---')
for rnum in range(1, 5):
router = 'r{}'.format(rnum)
logger.info('\tRouter "%s"', router)
# Load expected results from the command
reffile = os.path.join(CWD, '{}/ospf_srdb.json'.format(router))
expected = open(reffile).read()
# Run test function until we get an result. Wait at most 60 seconds.
test_func = partial(compare_ospf_srdb, router, expected)
result, diff = topotest.run_and_expect(test_func, '',
count=25, wait=3)
assert result, (
'OSPF did not start Segment Routing on {}:\n{}'
).format(router, diff)
def test_bgp_convergence():
"Test for BGP topology convergence"
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
# Expected result
router = tgen.gears['r1']
if router.has_version('<', '3.0'):
reffile = os.path.join(CWD, 'r1/summary20.txt')
else:
reffile = os.path.join(CWD, 'r1/summary.txt')
expected = json.loads(open(reffile).read())
def _output_summary_cmp(router, cmd, data):
"""
Runs `cmd` that returns JSON data (normally the command ends
with 'json') and compare with `data` contents.
"""
output = router.vtysh_cmd(cmd, isjson=True)
if 'ipv4Unicast' in output:
output['ipv4Unicast']['vrfName'] = \
output['ipv4Unicast']['vrfName'].replace(
'default', 'Default')
elif 'vrfName' in output:
output['vrfName'] = output['vrfName'].replace('default', 'Default')
return topotest.json_cmp(output, data)
test_func = functools.partial(
_output_summary_cmp, router, 'show ip bgp summary json', expected)
_, res = topotest.run_and_expect(test_func, None, count=60, wait=0.5)
assertmsg = 'BGP router network did not converge'
assert res is None, assertmsg