commit 3892799668dbf2b123a52780fd1d78f8880fdeb7
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Fri Sep 08 15:44:33 2017 -0700
committer Victor Stinner <victor.stinner@gmail.com> Fri Sep 08 15:44:33 2017 -0700
tree 4cc75a3cba7a47de82d147e321444ca0f132ef8f
parent ef18b0dab94b00ee233d672d89776539ef236207

[3.6] bpo-30822: Deduplicate ZoneInfoTest classes in test_datetime. (GH-2534) (#3405)

(cherry picked from commit 34b54873b51a1ebee2a3c57b7205537b4f33128d)

Lib/test/test_datetime.py

diff --git a/Lib/test/test_datetime.py b/Lib/test/test_datetime.py
index 2d00b56..d659f36 100644
--- a/Lib/test/test_datetime.py
+++ b/Lib/test/test_datetime.py
@@ -32,6 +32,7 @@
         elif issubclass(cls, unittest.TestSuite):
             suit = cls()
             test_classes.extend(type(test) for test in suit)
+    test_classes = sorted(set(test_classes), key=lambda cls: cls.__qualname__)
     for cls in test_classes:
         cls.__name__ += suffix
         cls.__qualname__ += suffix