Merge pull request #3136 from anarkiwi/errflake

Don't require errors always (test code doesn't always cause them).

tests/integration/mininet_tests.py

@@ -7999,11 +7999,10 @@ def send_flow_mod(self, flow_mod, timeout=5):
     def tearDown(self, ignore_oferrors=True):
         """Ignore OF errors on teardown"""
         oferrors = super().tearDown(ignore_oferrors)
-        # We expect some OF errors from the bad flow mods
         oferrors = re.findall(r'type: (\w+)', oferrors)
         counter = collections.Counter(oferrors)
-        error('Ignored OF error count:  %s\n' % dict(counter))
-        self.assertTrue(oferrors)
+        error('Ignored OF error count: %s\n' % dict(counter))
+        # TODO: ensure at least one error is always generated.
 
     # pylint: disable=arguments-differ
     def test_untagged(self, count=10):