[Python-Dev] adding threaded tests to the test suite

[Victor Stinner]

There is @support.reap_thread which can help.

Victor

Le dim. 22 janv. 2017 à 21:04, Ethan Furman <ethan at stoneleaf.us> a écrit :

> Question:  I need to add a threaded test to the enum test module [1] -- is
> there anything extra I
>
> need to worry about besides the test itself?  Setting or resetting or
> using a tool library, etc?
>
>
>
> --
>
> ~Ethan~
>
>
>
>
>
> [1] The test to be added:
>
>
>
>      def test_unique_composite(self):
>
>          # override __eq__ to be identity only
>
>          class TestFlag(IntFlag):
>
>              one = auto()
>
>              two = auto()
>
>              three = auto()
>
>              four = auto()
>
>              five = auto()
>
>              six = auto()
>
>              seven = auto()
>
>              eight = auto()
>
>              def __eq__(self, other):
>
>                  return self is other
>
>              def __hash__(self):
>
>                  return hash(self._value_)
>
>          # have multiple threads competing to complete the composite
> members
>
>          seen = set()
>
>          failed = False
>
>          def cycle_enum():
>
>              nonlocal failed
>
>              try:
>
>                  for i in range(256):
>
>                      seen.add(TestFlag(i))
>
>              except (Exception, RuntimeError):
>
>                  failed = True
>
>          threads = []
>
>          for i in range(8):
>
>              threads.append(threading.Thread(target=cycle_enum))
>
>          for t in threads:
>
>              t.start()
>
>          for t in threads:
>
>              t.join()
>
>          # check that only 248 members were created
>
>          self.assertFalse(
>
>                  failed,
>
>                  'at least one thread failed while creating composite
> members')
>
>          self.assertEqual(256, len(seen), 'too many composite members
> created')
>
> _______________________________________________
>
> Python-Dev mailing list
>
> Python-Dev at python.org
>
> https://mail.python.org/mailman/listinfo/python-dev
>
> Unsubscribe:
> https://mail.python.org/mailman/options/python-dev/victor.stinner%40gmail.com
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/python-dev/attachments/20170122/0d51607c/attachment.html>