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tests: improve tests for aspath exclude and bgp access list
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add some match in route map rules
add some set unset bgp access path list
add another prefix for better tests discrimination
update expected results

Signed-off-by:  Francois Dumontet <francois.dumontet@6wind.com>
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fdumontet6WIND committed Apr 29, 2024
1 parent 316fabd commit 691d05e
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Showing 3 changed files with 69 additions and 13 deletions.
9 changes: 9 additions & 0 deletions tests/topotests/bgp_set_aspath_exclude/r1/bgpd.conf
Original file line number Diff line number Diff line change
Expand Up @@ -8,10 +8,19 @@ router bgp 65001
exit-address-family
!
ip prefix-list p1 seq 5 permit 172.16.255.31/32
ip prefix-list p2 seq 5 permit 172.16.255.32/32
ip prefix-list p3 seq 5 permit 172.16.255.30/32
!
bgp as-path access-list FIRST permit ^65
bgp as-path access-list SECOND permit 2$

route-map r2 permit 6
match ip address prefix-list p2
set as-path exclude as-path-access-list SECOND
route-map r2 permit 10
match ip address prefix-list p1
set as-path exclude 65003
route-map r2 permit 20
match ip address prefix-list p3
set as-path exclude all
!
1 change: 1 addition & 0 deletions tests/topotests/bgp_set_aspath_exclude/r3/zebra.conf
Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
!
int lo
ip address 172.16.255.30/32
ip address 172.16.255.31/32
ip address 172.16.255.32/32
!
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Original file line number Diff line number Diff line change
Expand Up @@ -64,29 +64,33 @@ def teardown_module(mod):

expected_1 = {
"routes": {
"172.16.255.30/32": [{"path": ""}],
"172.16.255.31/32": [{"path": "65002"}],
"172.16.255.32/32": [{"path": ""}],
"172.16.255.32/32": [{"path": "65003"}],
}
}

expected_2 = {
"routes": {
"172.16.255.31/32": [{"path": ""}],
"172.16.255.30/32": [{"path": ""}],
"172.16.255.31/32": [{"path": "65002"}],
"172.16.255.32/32": [{"path": ""}],
}
}

expected_3 = {
"routes": {
"172.16.255.31/32": [{"path": "65003"}],
"172.16.255.32/32": [{"path": "65003"}],
"172.16.255.30/32": [{"path": ""}],
"172.16.255.31/32": [{"path": "65002"}],
"172.16.255.32/32": [{"path": "65002 65003"}],
}
}

expected_4 = {
"routes": {
"172.16.255.31/32": [{"path": "65002 65003"}],
"172.16.255.32/32": [{"path": "65002 65003"}],
"172.16.255.30/32": [{"path": ""}],
"172.16.255.31/32": [{"path": "65002"}],
"172.16.255.32/32": [{"path": "65002"}],
}
}

Expand Down Expand Up @@ -117,34 +121,42 @@ def test_bgp_set_aspath_exclude_access_list():

rname = "r1"
r1 = tgen.gears[rname]
#tgen.mininet_cli()

r1.vtysh_cmd(
"""
conf
bgp as-path access-list FIRST permit ^65
route-map r2 permit 6
no set as-path exclude as-path-access-list SECOND
set as-path exclude as-path-access-list FIRST
"""
)
#tgen.mininet_cli()
r1.vtysh_cmd(
"""
clear bgp *
"""
)

test_func = functools.partial(bgp_converge, tgen.gears["r1"], expected_2)
_, result = topotest.run_and_expect(test_func, None, count=30, wait=0.5)

assert result is None, "Failed overriding incoming AS-PATH with regex 1 route-map"
assert result is None, "Failed change of exclude rule in route map"
r1.vtysh_cmd(
"""
conf
bgp as-path access-list SECOND permit 2
route-map r2 permit 6
no set as-path exclude as-path-access-list FIRST
set as-path exclude as-path-access-list SECOND
"""
)

# tgen.mininet_cli()
test_func = functools.partial(bgp_converge, tgen.gears["r1"], expected_3)
test_func = functools.partial(bgp_converge, tgen.gears["r1"], expected_1)
_, result = topotest.run_and_expect(test_func, None, count=30, wait=0.5)

assert result is None, "Failed overriding incoming AS-PATH with regex 2 route-map"
assert result is None, "Failed reverting exclude rule in route map"


def test_no_bgp_set_aspath_exclude_access_list():
Expand All @@ -159,15 +171,28 @@ def test_no_bgp_set_aspath_exclude_access_list():
r1.vtysh_cmd(
"""
conf
no bgp as-path access-list SECOND permit 2
no bgp as-path access-list SECOND permit 2$
"""
)

r1.vtysh_cmd(
"""
clear bgp *
"""
)

test_func = functools.partial(bgp_converge, tgen.gears["r1"], expected_3)
_, result = topotest.run_and_expect(test_func, None, count=30, wait=0.5)

assert result is None, "Failed removing bgp as-path access-list"
assert result is None, "Failed to removing current accesslist"

#tgen.mininet_cli()
r1.vtysh_cmd(
"""
conf
bgp as-path access-list SECOND permit 3$
"""
)
r1.vtysh_cmd(
"""
clear bgp *
Expand All @@ -177,8 +202,29 @@ def test_no_bgp_set_aspath_exclude_access_list():
test_func = functools.partial(bgp_converge, tgen.gears["r1"], expected_4)
_, result = topotest.run_and_expect(test_func, None, count=30, wait=0.5)

assert result is None, "Failed to renegotiate with peers"
assert result is None, "Failed to renegotiate with peers 2"

r1.vtysh_cmd(
"""
conf
route-map r2 permit 6
no set as-path exclude as-path-access-list SECOND
"""
)


r1.vtysh_cmd(
"""
clear bgp *
"""
)

test_func = functools.partial(bgp_converge, tgen.gears["r1"], expected_3)
_, result = topotest.run_and_expect(test_func, None, count=30, wait=0.5)

assert result is None, "Failed to renegotiate with peers 2"



if __name__ == "__main__":
args = ["-s"] + sys.argv[1:]
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