assert res 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 json', 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_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 r1-eth0 link.
+ tgen.gears['r1'].link_enable('r1-eth0', enabled=False)
+
+ # 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_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 json', 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_memory_leak():
"Run the memory leak test and report results."
tgen = get_topogen()
projects / mirror / frr.git / commitdiff