[Python-Dev] r86570 - in python/branches/py3k: Lib/unittest/case.py Lib/unittest/test/test_case.py Misc/NEWS (original) (raw)

Michael Foord fuzzyman at voidspace.org.uk
Sat Nov 20 16:48:59 CET 2010

On 20/11/2010 15:42, Antoine Pitrou wrote:

On Sat, 20 Nov 2010 16:34:26 +0100 (CET) michael.foord<python-checkins at python.org> wrote:

+ + def testPickle(self): + # Issue 10326 + + # Can't use TestCase classes defined in Test class as + # pickle does not work with inner classes + test = unittest.TestCase('run') + for protocol in range(pickle.HIGHESTPROTOCOL + 1): + + # blew up prior to fix + pickledtest = pickle.dumps(test, protocol=protocol) You must also check that the object can be unpickled, otherwise making TestCase picklable is not only pointless, but misleading the user. Other classes which claim to be picklable (such as e.g. io.BytesIO) are careful to check that unpickling works fine and produces an usable object.

Well, given the particular bug it is fixing, ensuring that the TestCase instances can be pickled is enough. If they fail to unpickle that is a bug in pickle and not in unittest. However, the test is very easy to extend to what you suggest so I have done it.

All the best,

Michael

Regards

Antoine.

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