[tests] Exclude wikidata from some tests

Bug: T274735
Change-Id: Ic0741c513a48eadfdfc9ee450e8bd823080a34a6
---
M tests/site_tests.py
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tests/site_tests.py b/tests/site_tests.py
index 077fa1a..39274a5 100644
--- a/tests/site_tests.py
+++ b/tests/site_tests.py
@@ -248,7 +248,8 @@
         with self.subTest(messages='months', lang1=lang1, lang2=lang2):
             self.assertLength(mysite.mediawiki_messages(months, lang1), 12)
             self.assertLength(mysite.mediawiki_messages(months, lang2), 12)
-            if lang1 != lang2:
+            familyname = mysite.family.name
+            if lang1 != lang2 and lang1 != familyname and lang2 != familyname:
                 self.assertNotEqual(mysite.mediawiki_messages(months, lang1),
                                     mysite.mediawiki_messages(months, lang2))
 

