pythongh-113027: Fix test_variable_tzname in test_email (pythonGH-113821)

serhiy-storchaka · miss-islington · commit 065be55abaa7 · 2024-01-08T22:34:05.000Z
Determine the support of the Kyiv timezone by checking the result of astimezone() which uses the system tz database and not the one populated by zoneinfo. (cherry picked from commit 931d7e0) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
diff --git a/Lib/test/test_email/test_utils.py b/Lib/test/test_email/test_utils.py
@@ -143,12 +143,12 @@ def test_localtime_epoch_notz_daylight_false(self):
         t2 = utils.localtime(t0.replace(tzinfo=None))
         self.assertEqual(t1, t2)
 
-    @unittest.skipUnless("Europe/Kyiv" in zoneinfo.available_timezones(),
-                         "Can't find a Kyiv timezone database")
     @test.support.run_with_tz('Europe/Kyiv')
     def test_variable_tzname(self):
         t0 = datetime.datetime(1984, 1, 1, tzinfo=datetime.timezone.utc)
         t1 = utils.localtime(t0)
+        if t1.tzname() == 'Europe':
+            self.skipTest("Can't find a Kyiv timezone database")
         self.assertEqual(t1.tzname(), 'MSK')
         t0 = datetime.datetime(1994, 1, 1, tzinfo=datetime.timezone.utc)
         t1 = utils.localtime(t0)
