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tests: add topotest for NHG Proto APIs

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Add a topotest for basic NHG Proto Add/Del/Replace.

Signed-off-by: Stephen Worley <sworley@cumulusnetworks.com>
This commit is contained in:
Stephen Worley 2020-08-03 14:43:01 -04:00
parent 70f3cda6c1
commit 8f4d7212f5
1 changed files with 46 additions and 8 deletions
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50
tests/topotests/all-protocol-startup/test_all_protocol_startup.py
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@ -374,26 +374,36 @@ def route_get_nhg_id(route_str):
nhg_id = int(match.group(1))
return nhg_id
def verify_nexthop_group(nhg_id, recursive=False):
def verify_nexthop_group(nhg_id, recursive=False, ecmp=0):
# Verify NHG is valid/installed
output = net["r1"].cmd('vtysh -c "show nexthop-group rib %d"' % nhg_id)
match = re.search(r"Valid", output)
assert match is not None, "Nexthop Group ID=%d not marked Valid" % nhg_id
if ecmp or recursive:
match = re.search(r"Depends:.*\n", output)
assert match is not None, "Nexthop Group ID=%d has no depends" % nhg_id
# list of IDs in group
depends = re.findall(r"\((\d+)\)", match.group(0))
if ecmp:
assert (len(depends) == ecmp), "Nexthop Group ID=%d doesn't match ecmp size" % nhg_id
else:
# If recursive, we need to look at its resolved group
if recursive:
match = re.search(r"Depends: \((\d+)\)", output)
resolved_id = int(match.group(1))
assert (len(depends) == 1), "Nexthop Group ID=%d should only have one recursive depend" % nhg_id
resolved_id = int(depends[0])
verify_nexthop_group(resolved_id, False)
else:
match = re.search(r"Installed", output)
assert match is not None, "Nexthop Group ID=%d not marked Installed" % nhg_id
def verify_route_nexthop_group(route_str, recursive=False):
def verify_route_nexthop_group(route_str, recursive=False, ecmp=0):
# Verify route and that zebra created NHGs for and they are valid/installed
nhg_id = route_get_nhg_id(route_str)
verify_nexthop_group(nhg_id, recursive)
verify_nexthop_group(nhg_id, recursive, ecmp)
def test_nexthop_groups():
global fatal_error
@ -1101,6 +1111,34 @@ def test_nexthop_groups_with_route_maps():
net["r1"].cmd('vtysh -c "c t" -c "no route-map NOPE"')
net["r1"].cmd('vtysh -c "c t" -c "no ip prefix-list NOPE seq 5 permit %s/32"' % permit_route_str)
def test_nexthop_group_replace():
global fatal_error
global net
# Skip if previous fatal error condition is raised
if (fatal_error != ""):
pytest.skip(fatal_error)
print("\n\n** Verifying Nexthop Groups")
print("******************************************\n")
### Nexthop Group Tests
## 2-Way ECMP Directly Connected
net["r1"].cmd('vtysh -c "c t" -c "nexthop-group replace" -c "nexthop 1.1.1.1 r1-eth1 onlink" -c "nexthop 1.1.1.2 r1-eth2 onlink"')
# Create with sharpd using nexthop-group
net["r1"].cmd('vtysh -c "sharp install routes 3.3.3.1 nexthop-group replace 1"')
verify_route_nexthop_group("3.3.3.1/32")
# Change the nexthop group
net["r1"].cmd('vtysh -c "c t" -c "nexthop-group replace" -c "no nexthop 1.1.1.1 r1-eth1 onlink" -c "nexthop 1.1.1.3 r1-eth1 onlink" -c "nexthop 1.1.1.4 r1-eth4 onlink"')
# Verify it updated. We can just check install and ecmp count here.
verify_route_nexthop_group("3.3.3.1/32", False, 3)
def test_mpls_interfaces():
global fatal_error
global net