Quiesce pytest warnings (#916)

* Skip doctest of deprecated format_number

* Don't return from test_compatible_classes_in_global_and_localedata

* Renovate conftest (and require pytest 6+)

1 files changed, 1 insertions, 1 deletions

diff --git a/tests/test_core.py b/tests/test_core.py
index 529a424..2de79e2 100644
--- a/tests/test_core.py
+++ b/tests/test_core.py
@@ -313,7 +313,7 @@ def test_compatible_classes_in_global_and_localedata(filename):
                                          (module, name))
 
     with open(filename, 'rb') as f:
-        return Unpickler(f).load()
+        assert Unpickler(f).load()
 
 
 def test_issue_601_no_language_name_but_has_variant():