tests: improve tests for aspath exclude and bgp access list

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>
(cherry picked from commit 0df2e14997)

tests/topotests/bgp_set_aspath_exclude/r1/bgpd.conf

@@ -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
 !

tests/topotests/bgp_set_aspath_exclude/r3/zebra.conf

@@ -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
 !

tests/topotests/bgp_set_aspath_exclude/test_bgp_set_aspath_exclude.py

@@ -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"}],
+        "172.16.255.30/32": [{"path": ""}],
-        "172.16.255.32/32": [{"path": "65003"}],
+        "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"}],
+        "172.16.255.30/32": [{"path": ""}],
-        "172.16.255.32/32": [{"path": "65002 65003"}],
+        "172.16.255.31/32": [{"path": "65002"}],
+        "172.16.255.32/32": [{"path": "65002"}],
     }
 }
 
@@ -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():
@@ -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 *
@@ -177,7 +202,26 @@ clear bgp *
     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__":