From dfb56806afa7732b7e8474cef351cb155b7cc675 Mon Sep 17 00:00:00 2001 From: Philippe Guibert Date: Mon, 2 Oct 2023 21:17:20 +0200 Subject: [PATCH] topotests: fix bgp_vpnv[4,6]_per_nexthop prefix not updated The bgp_vpnv[4,6]_table_check() functions analyze the expected label value of VPN prefixes present in the BGP table. However, it doesn't verify if the prefixes exist before doing this. Consequently, the tests will fail if the prefixes do not show up immediately. Ensure that all expected VPN prefixes are present before executing the function. Fixes: ae5a6bc1f6ba ("topotests: add bgp mpls allocation per next-hop test") Fixes: 37a02a8dcb0d ("topotests: add bgp_vpnv6 test allocation") Signed-off-by: Philippe Guibert --- .../test_bgp_vpnv4_per_nexthop_label.py | 16 ++++++++++++++ .../test_bgp_vpnv6_per_nexthop_label.py | 22 +++++++++++++++++-- 2 files changed, 36 insertions(+), 2 deletions(-) diff --git a/tests/topotests/bgp_vpnv4_per_nexthop_label/test_bgp_vpnv4_per_nexthop_label.py b/tests/topotests/bgp_vpnv4_per_nexthop_label/test_bgp_vpnv4_per_nexthop_label.py index ce278ed7a7..d4c355a44a 100644 --- a/tests/topotests/bgp_vpnv4_per_nexthop_label/test_bgp_vpnv4_per_nexthop_label.py +++ b/tests/topotests/bgp_vpnv4_per_nexthop_label/test_bgp_vpnv4_per_nexthop_label.py @@ -151,6 +151,16 @@ def teardown_module(_mod): tgen.stop_topology() +def check_bgp_vpnv4_prefix_presence(router, prefix): + "Check the presence of a prefix" + tgen = get_topogen() + + dump = router.vtysh_cmd("show bgp ipv4 vpn {} json".format(prefix), isjson=True) + if not dump: + return "{}, prefix ipv4 vpn {} is not installed yet".format(router.name, prefix) + return None + + def bgp_vpnv4_table_check(router, group, label_list=None, label_value_expected=None): """ Dump and check that vpnv4 entries have the same MPLS label value @@ -163,6 +173,12 @@ def bgp_vpnv4_table_check(router, group, label_list=None, label_value_expected=N stored_label_inited = False for prefix in group: + test_func = functools.partial(check_bgp_vpnv4_prefix_presence, router, prefix) + success, result = topotest.run_and_expect(test_func, None, count=10, wait=0.5) + assert success, "{}, prefix ipv4 vpn {} is not installed yet".format( + router.name, prefix + ) + dump = router.vtysh_cmd("show bgp ipv4 vpn {} json".format(prefix), isjson=True) assert dump, "{0}, {1}, route distinguisher not present".format( router.name, prefix diff --git a/tests/topotests/bgp_vpnv6_per_nexthop_label/test_bgp_vpnv6_per_nexthop_label.py b/tests/topotests/bgp_vpnv6_per_nexthop_label/test_bgp_vpnv6_per_nexthop_label.py index e936ccc1e4..3d5f8f643b 100644 --- a/tests/topotests/bgp_vpnv6_per_nexthop_label/test_bgp_vpnv6_per_nexthop_label.py +++ b/tests/topotests/bgp_vpnv6_per_nexthop_label/test_bgp_vpnv6_per_nexthop_label.py @@ -54,7 +54,7 @@ pytestmark = [pytest.mark.bgpd] PREFIXES_R11 = ["172:31::11/128", "172:31::20/128", "172:31::111/128"] PREFIXES_R12 = ["172:31::12/128", "172:31::15/128"] PREFIXES_REDIST_R14 = ["172:31::14/128"] -PREFIXES_CONNECTED = ["192:168::255/112", "192:2::/64"] +PREFIXES_CONNECTED = ["192:168::255:0/112", "192:2::/64"] def build_topo(tgen): @@ -150,6 +150,16 @@ def teardown_module(_mod): tgen.stop_topology() +def check_bgp_vpnv6_prefix_presence(router, prefix): + "Check the presence of a prefix" + tgen = get_topogen() + + dump = router.vtysh_cmd("show bgp ipv6 vpn {} json".format(prefix), isjson=True) + if not dump: + return "{}, prefix ipv6 vpn {} is not installed yet".format(router.name, prefix) + return None + + def bgp_vpnv6_table_check(router, group, label_list=None, label_value_expected=None): """ Dump and check that vpnv6 entries have the same MPLS label value @@ -162,6 +172,12 @@ def bgp_vpnv6_table_check(router, group, label_list=None, label_value_expected=N stored_label_inited = False for prefix in group: + test_func = functools.partial(check_bgp_vpnv6_prefix_presence, router, prefix) + success, result = topotest.run_and_expect(test_func, None, count=10, wait=0.5) + assert success, "{}, prefix ipv6 vpn {} is not installed yet".format( + router.name, prefix + ) + dump = router.vtysh_cmd("show bgp ipv6 vpn {} json".format(prefix), isjson=True) for rd, pathes in dump.items(): for path in pathes["paths"]: @@ -237,7 +253,9 @@ def check_show_mpls_table(router, blacklist=None, label_list=None, whitelist=Non label_list.add(in_label) for nh in label_info["nexthops"]: if "installed" not in nh.keys(): - return "{} {} is not installed yet on {}".format(in_label, label_info, router.name) + return "{} {} is not installed yet on {}".format( + in_label, label_info, router.name + ) if nh["installed"] != True or nh["type"] != "BGP": return "{}, show mpls table, nexthop is not installed".format( router.name