Author Anton.Afanasyev
Recipients Anton.Afanasyev, pitrou, rhettinger
Date 2014-04-28.19:47:57
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Message-id <1398714477.7.0.844701459634.issue21321@psf.upfronthosting.co.za>
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Hi Antoine,
I have no found a way to check resource usage in test infrastructure and I don't think it could be done carefully. The only method I found to test issue is straightforward: just to check source iterator is not referenced from itertools.islice() after the latter has been exhausted:

================================================
a = [random.random() for i in range(10)]
before = sys.getrefcount(a)
b = islice(a, 5)
for i in b: pass
after = sys.getrefcount(a)
self.assertEqual(before, after)
================================================

Attaching "issue21321_2.7_e3217efa6edd_3.diff" and "issue21321_3.4_8c8315bac6a8_3.diff" patches with this test included in "Lib/test/test_itertools.py".
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Date User Action Args
2014-04-28 19:47:57Anton.Afanasyevsetrecipients: + Anton.Afanasyev, rhettinger, pitrou
2014-04-28 19:47:57Anton.Afanasyevsetmessageid: <1398714477.7.0.844701459634.issue21321@psf.upfronthosting.co.za>
2014-04-28 19:47:57Anton.Afanasyevlinkissue21321 messages
2014-04-28 19:47:57Anton.Afanasyevcreate