tests: add generalized tags for tests, use them for run-solo tests

We have accumulated several scenarios in prod or wishlists
where it would be useful to have a general infra to say yes/no
about a certain test, and potentially make decisions based on that,
for example:

- runs solo (aka 'time-dependent')
- (wishlist) part of quick smoke-test set
- (wishlist) intermittent failure unrelated to timing
- (wishlist) test broken with a multi-worker config in vpp

Refactor the current "run-solo" code to allow for this extension.

Type: test

Change-Id: Ia5b3810e57c0543753c8e0dc4dc0cfb4a30b36ac
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
Signed-off-by: Klement Sekera <ksekera@cisco.com>

1 files changed, 2 insertions, 4 deletions

diff --git a/src/plugins/memif/test/test_memif.py b/src/plugins/memif/test/test_memif.py
index f2bbded320b..caaab87f1e8 100644
--- a/src/plugins/memif/test/test_memif.py
+++ b/src/plugins/memif/test/test_memif.py
@@ -5,6 +5,7 @@ from scapy.layers.l2 import Ether
 from scapy.layers.inet import IP, ICMP
 
 from framework import VppTestCase, VppTestRunner, running_extended_tests
+from framework import tag_run_solo
 from remote_test import RemoteClass, RemoteVppTestCase
 from vpp_memif import remove_all_memif_vpp_config, \
     VppSocketFilename, VppMemif
@@ -12,14 +13,11 @@ from vpp_ip_route import VppIpRoute, VppRoutePath
 from vpp_papi import VppEnum
 
 
+@tag_run_solo
 class TestMemif(VppTestCase):
     """ Memif Test Case """
 
     @classmethod
-    def force_solo(cls):
-        return True
-
-    @classmethod
     def setUpClass(cls):
         # fork new process before client connects to VPP
         cls.remote_test = RemoteClass(RemoteVppTestCase)