tests: Add ip6_route_zebra lib function

Add a common function to retrieve and canonicalize
'show ipv6 route' output for use in topotests. Use that in
the test_ospf6_topo1 test; update the corresponding 'expected'
results files to match the lib function.

Replace some 'print' with 'logger' statements in that test also.

Signed-off-by: Mark Stapp <mjs@voltanet.io>

diff --git a/tests/topotests/lib/topotest.py b/tests/topotests/lib/topotest.py
index e0da20e07f506d95d37479b422f7b497f3665c4c..2acb04fb0ed8a9d3e0c0fc596960dbc20abfb360 100644 (file)
--- a/tests/topotests/lib/topotest.py
+++ b/tests/topotests/lib/topotest.py
@@ -429,6 +429,33 @@ def ip4_route_zebra(node, vrf_name=None):
         lines = lines[1:]
     return '\n'.join(lines)
 
+def ip6_route_zebra(node, vrf_name=None):
+    """
+    Retrieves the output of 'show ipv6 route [vrf vrf_name]', then
+    canonicalizes it by eliding link-locals.
+    """
+
+    if vrf_name == None:
+        tmp = node.vtysh_cmd('show ipv6 route')
+    else:
+        tmp = node.vtysh_cmd('show ipv6 route vrf {0}'.format(vrf_name))
+
+    # Mask out timestamp
+    output = re.sub(r" [0-2][0-9]:[0-5][0-9]:[0-5][0-9]", " XX:XX:XX", tmp)
+
+    # Mask out the link-local addresses
+    output = re.sub(r'fe80::[^ ]+,', 'fe80::XXXX:XXXX:XXXX:XXXX,', output)
+
+    lines = output.splitlines()
+    header_found = False
+    while lines and (not lines[0].strip() or not header_found):
+        if '> - selected route' in lines[0]:
+            header_found = True
+        lines = lines[1:]
+
+    return '\n'.join(lines)
+
+
 def proto_name_to_number(protocol):
     return {
         'bgp':    '186',

diff --git a/tests/topotests/ospf6-topo1/r1/ospf6d.conf-pre-v4 b/tests/topotests/ospf6-topo1/r1/ospf6d.conf-pre-v4
deleted file mode 100644 (file)
index c4b3821..0000000
--- a/tests/topotests/ospf6-topo1/r1/ospf6d.conf-pre-v4
+++ /dev/null
@@ -1,27 +0,0 @@
-hostname r1
-log file ospf6d.log
-!
-debug ospf6 message all
-debug ospf6 lsa unknown
-debug ospf6 zebra
-debug ospf6 interface
-debug ospf6 neighbor
-debug ospf6 route table
-debug ospf6 flooding
-!
-interface r1-stubnet
- ipv6 ospf6 network broadcast
-!
-interface r1-sw5
- ipv6 ospf6 network broadcast
-!
-router ospf6
- router-id 10.0.0.1
- log-adjacency-changes detail
- redistribute static
- interface r1-stubnet area 0.0.0.0
- interface r1-sw5 area 0.0.0.0
-!
-line vty
- exec-timeout 0 0
-!

diff --git a/tests/topotests/ospf6-topo1/r1/show_ipv6_route.ref b/tests/topotests/ospf6-topo1/r1/show_ipv6_route.ref
index c961512bd9f1aadf14f823c547802d005c0f3a3a..2db6f620f974b02be011ee60eb658652eaa25602 100644 (file)
--- a/tests/topotests/ospf6-topo1/r1/show_ipv6_route.ref
+++ b/tests/topotests/ospf6-topo1/r1/show_ipv6_route.ref
@@ -1,9 +1,9 @@
-O   fc00:1:1:1::/64 [110/10] is directly connected, r1-stubnet
-O>* fc00:2:2:2::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r1-sw5
-O>* fc00:3:3:3::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r1-sw5
-O>* fc00:4:4:4::/64 [110/30] via fe80::XXXX:XXXX:XXXX:XXXX, r1-sw5
-O   fc00:a:a:a::/64 [110/10] is directly connected, r1-sw5
-O>* fc00:b:b:b::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r1-sw5
-O>* fc00:2222:2222:2222::/64 [110/10] via fe80::XXXX:XXXX:XXXX:XXXX, r1-sw5
-O>* fc00:3333:3333:3333::/64 [110/10] via fe80::XXXX:XXXX:XXXX:XXXX, r1-sw5
-O>* fc00:4444:4444:4444::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r1-sw5
+O   fc00:1:1:1::/64 [110/10] is directly connected, r1-stubnet, XX:XX:XX
+O>* fc00:2:2:2::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r1-sw5, XX:XX:XX
+O>* fc00:3:3:3::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r1-sw5, XX:XX:XX
+O>* fc00:4:4:4::/64 [110/30] via fe80::XXXX:XXXX:XXXX:XXXX, r1-sw5, XX:XX:XX
+O   fc00:a:a:a::/64 [110/10] is directly connected, r1-sw5, XX:XX:XX
+O>* fc00:b:b:b::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r1-sw5, XX:XX:XX
+O>* fc00:2222:2222:2222::/64 [110/10] via fe80::XXXX:XXXX:XXXX:XXXX, r1-sw5, XX:XX:XX
+O>* fc00:3333:3333:3333::/64 [110/10] via fe80::XXXX:XXXX:XXXX:XXXX, r1-sw5, XX:XX:XX
+O>* fc00:4444:4444:4444::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r1-sw5, XX:XX:XX

diff --git a/tests/topotests/ospf6-topo1/r2/ospf6d.conf-pre-v4 b/tests/topotests/ospf6-topo1/r2/ospf6d.conf-pre-v4
deleted file mode 100644 (file)
index bb9958d..0000000
--- a/tests/topotests/ospf6-topo1/r2/ospf6d.conf-pre-v4
+++ /dev/null
@@ -1,27 +0,0 @@
-hostname r2
-log file ospf6d.log
-!
-debug ospf6 message all
-debug ospf6 lsa unknown
-debug ospf6 zebra
-debug ospf6 interface
-debug ospf6 neighbor
-debug ospf6 route table
-debug ospf6 flooding
-!
-interface r2-stubnet
- ipv6 ospf6 network broadcast
-!
-interface r2-sw5
- ipv6 ospf6 network broadcast
-!
-router ospf6
- router-id 10.0.0.2
- log-adjacency-changes detail
- redistribute static
- interface r2-stubnet area 0.0.0.0
- interface r2-sw5 area 0.0.0.0
-!
-line vty
- exec-timeout 0 0
-!

diff --git a/tests/topotests/ospf6-topo1/r2/show_ipv6_route.ref b/tests/topotests/ospf6-topo1/r2/show_ipv6_route.ref
index 014eddbcb69eb7461e12c97a4717912a80393ba4..9060b0739f0dfad886e46774793cf13d40de6796 100644 (file)
--- a/tests/topotests/ospf6-topo1/r2/show_ipv6_route.ref
+++ b/tests/topotests/ospf6-topo1/r2/show_ipv6_route.ref
@@ -1,10 +1,10 @@
-O>* fc00:1:1:1::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r2-sw5
-O   fc00:2:2:2::/64 [110/10] is directly connected, r2-stubnet
-O>* fc00:3:3:3::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r2-sw5
-O>* fc00:4:4:4::/64 [110/30] via fe80::XXXX:XXXX:XXXX:XXXX, r2-sw5
-O   fc00:a:a:a::/64 [110/10] is directly connected, r2-sw5
-O>* fc00:b:b:b::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r2-sw5
-O>* fc00:1111:1111:1111::/64 [110/10] via fe80::XXXX:XXXX:XXXX:XXXX, r2-sw5
-O>* fc00:3333:3333:3333::/64 [110/10] via fe80::XXXX:XXXX:XXXX:XXXX, r2-sw5
-O>* fc00:4444:4444:4444::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r2-sw5
+O>* fc00:1:1:1::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r2-sw5, XX:XX:XX
+O   fc00:2:2:2::/64 [110/10] is directly connected, r2-stubnet, XX:XX:XX
+O>* fc00:3:3:3::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r2-sw5, XX:XX:XX
+O>* fc00:4:4:4::/64 [110/30] via fe80::XXXX:XXXX:XXXX:XXXX, r2-sw5, XX:XX:XX
+O   fc00:a:a:a::/64 [110/10] is directly connected, r2-sw5, XX:XX:XX
+O>* fc00:b:b:b::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r2-sw5, XX:XX:XX
+O>* fc00:1111:1111:1111::/64 [110/10] via fe80::XXXX:XXXX:XXXX:XXXX, r2-sw5, XX:XX:XX
+O>* fc00:3333:3333:3333::/64 [110/10] via fe80::XXXX:XXXX:XXXX:XXXX, r2-sw5, XX:XX:XX
+O>* fc00:4444:4444:4444::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r2-sw5, XX:XX:XX
 

diff --git a/tests/topotests/ospf6-topo1/r3/ospf6d.conf-pre-v4 b/tests/topotests/ospf6-topo1/r3/ospf6d.conf-pre-v4
deleted file mode 100644 (file)
index d2dbc4a..0000000
--- a/tests/topotests/ospf6-topo1/r3/ospf6d.conf-pre-v4
+++ /dev/null
@@ -1,31 +0,0 @@
-hostname r3
-log file ospf6d.log
-!
-debug ospf6 message all
-debug ospf6 lsa unknown
-debug ospf6 zebra
-debug ospf6 interface
-debug ospf6 neighbor
-debug ospf6 route table
-debug ospf6 flooding
-!
-interface r3-stubnet
- ipv6 ospf6 network broadcast
-!
-interface r3-sw5
- ipv6 ospf6 network broadcast
-!
-interface r3-sw6
- ipv6 ospf6 network broadcast
-!
-router ospf6
- router-id 10.0.0.3
- log-adjacency-changes detail
- redistribute static
- interface r3-stubnet area 0.0.0.0
- interface r3-sw5 area 0.0.0.0
- interface r3-sw6 area 0.0.0.1
-!
-line vty
- exec-timeout 0 0
-!

diff --git a/tests/topotests/ospf6-topo1/r3/show_ipv6_route.ref b/tests/topotests/ospf6-topo1/r3/show_ipv6_route.ref
index 1ac7cbd6b4a2fb58d3d9090bc8135b24c951bc5a..9406f41e94339962ba83ba5ed20d01c592292881 100644 (file)
--- a/tests/topotests/ospf6-topo1/r3/show_ipv6_route.ref
+++ b/tests/topotests/ospf6-topo1/r3/show_ipv6_route.ref
@@ -1,10 +1,10 @@
-O>* fc00:1:1:1::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r3-sw5
-O>* fc00:2:2:2::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r3-sw5
-O   fc00:3:3:3::/64 [110/10] is directly connected, r3-stubnet
-O>* fc00:4:4:4::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r3-sw6
-O   fc00:a:a:a::/64 [110/10] is directly connected, r3-sw5
-O   fc00:b:b:b::/64 [110/10] is directly connected, r3-sw6
-O>* fc00:1111:1111:1111::/64 [110/10] via fe80::XXXX:XXXX:XXXX:XXXX, r3-sw5
-O>* fc00:2222:2222:2222::/64 [110/10] via fe80::XXXX:XXXX:XXXX:XXXX, r3-sw5
-O>* fc00:4444:4444:4444::/64 [110/10] via fe80::XXXX:XXXX:XXXX:XXXX, r3-sw6
+O>* fc00:1:1:1::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r3-sw5, XX:XX:XX
+O>* fc00:2:2:2::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r3-sw5, XX:XX:XX
+O   fc00:3:3:3::/64 [110/10] is directly connected, r3-stubnet, XX:XX:XX
+O>* fc00:4:4:4::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r3-sw6, XX:XX:XX
+O   fc00:a:a:a::/64 [110/10] is directly connected, r3-sw5, XX:XX:XX
+O   fc00:b:b:b::/64 [110/10] is directly connected, r3-sw6, XX:XX:XX
+O>* fc00:1111:1111:1111::/64 [110/10] via fe80::XXXX:XXXX:XXXX:XXXX, r3-sw5, XX:XX:XX
+O>* fc00:2222:2222:2222::/64 [110/10] via fe80::XXXX:XXXX:XXXX:XXXX, r3-sw5, XX:XX:XX
+O>* fc00:4444:4444:4444::/64 [110/10] via fe80::XXXX:XXXX:XXXX:XXXX, r3-sw6, XX:XX:XX
 

diff --git a/tests/topotests/ospf6-topo1/r4/ospf6d.conf-pre-v4 b/tests/topotests/ospf6-topo1/r4/ospf6d.conf-pre-v4
deleted file mode 100644 (file)
index 6f9c30d..0000000
--- a/tests/topotests/ospf6-topo1/r4/ospf6d.conf-pre-v4
+++ /dev/null
@@ -1,27 +0,0 @@
-hostname r4
-log file ospf6d.log
-!
-debug ospf6 message all
-debug ospf6 lsa unknown
-debug ospf6 zebra
-debug ospf6 interface
-debug ospf6 neighbor
-debug ospf6 route table
-debug ospf6 flooding
-!
-interface r4-stubnet
- ipv6 ospf6 network broadcast
-!
-interface r4-sw6
- ipv6 ospf6 network broadcast
-!
-router ospf6
- router-id 10.0.0.4
- log-adjacency-changes detail
- redistribute static
- interface r4-stubnet area 0.0.0.1
- interface r4-sw6 area 0.0.0.1
-!
-line vty
- exec-timeout 0 0
-!

diff --git a/tests/topotests/ospf6-topo1/r4/show_ipv6_route.ref b/tests/topotests/ospf6-topo1/r4/show_ipv6_route.ref
index 698dea6c7be39b75c7c81a4dd0d22ab0ecee5f2a..9bf032b5e78d6f36400c028e6ed43c5fb63e0053 100644 (file)
--- a/tests/topotests/ospf6-topo1/r4/show_ipv6_route.ref
+++ b/tests/topotests/ospf6-topo1/r4/show_ipv6_route.ref
@@ -1,9 +1,9 @@
-O>* fc00:1:1:1::/64 [110/30] via fe80::XXXX:XXXX:XXXX:XXXX, r4-sw6
-O>* fc00:2:2:2::/64 [110/30] via fe80::XXXX:XXXX:XXXX:XXXX, r4-sw6
-O>* fc00:3:3:3::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r4-sw6
-O   fc00:4:4:4::/64 [110/10] is directly connected, r4-stubnet
-O>* fc00:a:a:a::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r4-sw6
-O   fc00:b:b:b::/64 [110/10] is directly connected, r4-sw6
-O>* fc00:1111:1111:1111::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r4-sw6
-O>* fc00:2222:2222:2222::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r4-sw6
-O>* fc00:3333:3333:3333::/64 [110/10] via fe80::XXXX:XXXX:XXXX:XXXX, r4-sw6
+O>* fc00:1:1:1::/64 [110/30] via fe80::XXXX:XXXX:XXXX:XXXX, r4-sw6, XX:XX:XX
+O>* fc00:2:2:2::/64 [110/30] via fe80::XXXX:XXXX:XXXX:XXXX, r4-sw6, XX:XX:XX
+O>* fc00:3:3:3::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r4-sw6, XX:XX:XX
+O   fc00:4:4:4::/64 [110/10] is directly connected, r4-stubnet, XX:XX:XX
+O>* fc00:a:a:a::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r4-sw6, XX:XX:XX
+O   fc00:b:b:b::/64 [110/10] is directly connected, r4-sw6, XX:XX:XX
+O>* fc00:1111:1111:1111::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r4-sw6, XX:XX:XX
+O>* fc00:2222:2222:2222::/64 [110/20] via fe80::XXXX:XXXX:XXXX:XXXX, r4-sw6, XX:XX:XX
+O>* fc00:3333:3333:3333::/64 [110/10] via fe80::XXXX:XXXX:XXXX:XXXX, r4-sw6, XX:XX:XX

diff --git a/tests/topotests/ospf6-topo1/test_ospf6_topo1.py b/tests/topotests/ospf6-topo1/test_ospf6_topo1.py
index 150ba19ae4b543b5e7e1e51353fad5df176b7876..b70ae02266f433923d9a52848f6a1b95a318cb8e 100755 (executable)
--- a/tests/topotests/ospf6-topo1/test_ospf6_topo1.py
+++ b/tests/topotests/ospf6-topo1/test_ospf6_topo1.py
@@ -154,17 +154,13 @@ def setup_module(mod):
     tgen = Topogen(NetworkTopo, mod.__name__)
     tgen.start_topology()
 
-    print("\n\n** %s: Setup Topology" % mod.__name__)
-    print("******************************************\n")
+    logger.info("** %s: Setup Topology" % mod.__name__)
+    logger.info("******************************************")
 
     # For debugging after starting net, but before starting FRR,
     # uncomment the next line
     # tgen.mininet_cli()
 
-    ospf_config = 'ospf6d.conf'
-    if tgen.gears['r1'].has_version('<', '4.0'):
-        ospf_config = 'ospf6d.conf-pre-v4'
-
     router_list = tgen.routers()
     for rname, router in router_list.iteritems():
         router.load_config(
@@ -173,7 +169,7 @@ def setup_module(mod):
         )
         router.load_config(
             TopoRouter.RD_OSPF6,
-            os.path.join(CWD, '{}/{}'.format(rname, ospf_config))
+            os.path.join(CWD, '{}/ospf6d.conf'.format(rname))
         )
 
     # Initialize all routers.
@@ -201,8 +197,7 @@ def test_ospf6_converged():
     #tgen.mininet_cli()
 
     # Wait for OSPF6 to converge  (All Neighbors in either Full or TwoWay State)
-    print("\n\n** Verify OSPF6 daemons' convergence")
-    print("******************************************\n")
+    logger.info("Waiting for OSPF6 convergence")
 
     # Set up for regex
     pat1 = re.compile('^[0-9]')
@@ -210,7 +205,7 @@ def test_ospf6_converged():
 
     timeout = 60
     while timeout > 0:
-        print("Timeout in %s: " % timeout),
+        logger.info("Timeout in %s: " % timeout),
         sys.stdout.flush()
 
         # Look for any node not yet converged
@@ -230,12 +225,12 @@ def test_ospf6_converged():
                         break
 
             if isConverged == False:
-                print('Waiting for {}'.format(router))
+                logger.info('Waiting for {}'.format(router))
                 sys.stdout.flush()
                 break
 
         if isConverged:
-            print('Done\n')
+            logger.info('Done')
             break
         else:
             sleep(5)
@@ -246,12 +241,7 @@ def test_ospf6_converged():
         ospfStatus = rnode.vtysh_cmd('show ipv6 ospf neigh')
         assert False, "OSPFv6 did not converge:\n{}".format(ospfStatus)
 
-    print("OSPFv3 converged.")
-
-    if timeout < 60:
-        # Only wait if we actually went through a convergence
-        print("\nwaiting 15s for routes to populate")
-        sleep(15)
+    logger.info("OSPFv3 converged.")
 
     # For debugging, uncomment the next line
     # tgen.mininet_cli()
@@ -266,7 +256,9 @@ def compare_show_ipv6(rname, expected):
     result with the expected output.
     """
     tgen = get_topogen()
-    current = tgen.gears[rname].vtysh_cmd('show ipv6 route')
+
+    # Use the vtysh output, with some masking to make comparison easy
+    current = topotest.ip6_route_zebra(tgen.gears[rname])
 
     # Use just the 'O'spf lines of the output
     linearr = []
@@ -276,14 +268,6 @@ def compare_show_ipv6(rname, expected):
 
     current = '\n'.join(linearr)
 
-    # Remove the link addresses
-    current = re.sub(r'fe80::[^ ]+', 'fe80::xxxx:xxxx:xxxx:xxxx', current)
-    expected = re.sub(r'fe80::[^ ]+', 'fe80::xxxx:xxxx:xxxx:xxxx', expected)
-
-    # Remove the time
-    current = re.sub(r', \d+:\d{2}:\d{2}', '', current)
-    expected = re.sub(r'\d+:\d{2}:\d{2}', '', expected)
-
     return topotest.difflines(topotest.normalize_text(current),
                               topotest.normalize_text(expected),
                               title1="Current output",
@@ -322,8 +306,8 @@ def test_linux_ipv6_kernel_routingTable():
         pytest.skip('skipped because of router(s) failure')
 
     # Verify Linux Kernel Routing Table
-    print("\n\n** Verifying Linux IPv6 Kernel Routing Table")
-    print("******************************************\n")
+    logger.info("Verifying Linux IPv6 Kernel Routing Table")
+
     failures = 0
 
     # Get a list of all current link-local addresses first as they change for
@@ -332,7 +316,8 @@ def test_linux_ipv6_kernel_routingTable():
     for i in range(1, 5):
         linklocals += tgen.net['r{}'.format(i)].get_ipv6_linklocal()
 
-    # Now compare the routing tables (after substituting link-local addresses)        
+    # Now compare the routing tables (after substituting link-local addresses)
+
     for i in range(1, 5):
         refTableFile = os.path.join(CWD, 'r{}/ip_6_address.ref'.format(i))
         if os.path.isfile(refTableFile):
@@ -365,9 +350,9 @@ def test_linux_ipv6_kernel_routingTable():
             actual = '\n'.join(filtered_lines).splitlines(1)
 
             # Print Actual table
-            # print("Router r%s table" % i)
+            # logger.info("Router r%s table" % i)
             # for line in actual:
-            #     print(line.rstrip())
+            #     logger.info(line.rstrip())
 
             # Generate Diff
             diff = topotest.get_textdiff(actual, expected,
@@ -379,7 +364,7 @@ def test_linux_ipv6_kernel_routingTable():
                 sys.stderr.write('r%s failed Linux IPv6 Kernel Routing Table Check:\n%s\n' % (i, diff))
                 failures += 1
             else:
-                print("r%s ok" % i)
+                logger.info("r%s ok" % i)
 
             assert failures == 0, "Linux Kernel IPv6 Routing Table verification failed for router r%s:\n%s" % (i, diff)
 
@@ -392,29 +377,29 @@ def test_shutdown_check_stderr():
         pytest.skip('skipped because of router(s) failure')
 
     if os.environ.get('TOPOTESTS_CHECK_STDERR') is None:
-        print("SKIPPED final check on StdErr output: Disabled (TOPOTESTS_CHECK_STDERR undefined)\n")
+        logger.info("SKIPPED final check on StdErr output: Disabled (TOPOTESTS_CHECK_STDERR undefined)\n")
         pytest.skip('Skipping test for Stderr output')
 
     net = tgen.net
 
-    print("\n\n** Verifying unexpected STDERR output from daemons")
-    print("******************************************\n")
+    logger.info("\n\n** Verifying unexpected STDERR output from daemons")
+    logger.info("******************************************")
 
     for i in range(1, 5):
         net['r%s' % i].stopRouter()
         log = net['r%s' % i].getStdErr('ospf6d')
         if log:
-            print("\nRouter r%s OSPF6d StdErr Log:\n%s" % (i, log))
+            logger.info("\nRouter r%s OSPF6d StdErr Log:\n%s" % (i, log))
         log = net['r%s' % i].getStdErr('zebra')
         if log:
-            print("\nRouter r%s Zebra StdErr Log:\n%s" % (i, log))
+            logger.info("\nRouter r%s Zebra StdErr Log:\n%s" % (i, log))
 
 
 def test_shutdown_check_memleak():
     "Run the memory leak test and report results."
 
     if os.environ.get('TOPOTESTS_CHECK_MEMLEAK') is None:
-        print("SKIPPED final check on Memory leaks: Disabled (TOPOTESTS_CHECK_MEMLEAK undefined)\n")
+        logger.info("SKIPPED final check on Memory leaks: Disabled (TOPOTESTS_CHECK_MEMLEAK undefined)")
         pytest.skip('Skipping test for memory leaks')
 
     tgen = get_topogen()
@@ -430,7 +415,9 @@ def test_shutdown_check_memleak():
 
 if __name__ == '__main__':
 
-    # To suppress tracebacks, either use the following pytest call or add "--tb=no" to cli
+    # To suppress tracebacks, either use the following pytest call or
+    # add "--tb=no" to cli
     # retval = pytest.main(["-s", "--tb=no"])
+
     retval = pytest.main(["-s"])
     sys.exit(retval)