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Code Issues Projects Releases Packages Wiki Activity Actions 11

Issue #14288: Serialization support for builtin iterators.

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This commit is contained in:
Kristján Valur Jónsson 2012-04-03 10:49:41 +00:00
parent 283b96b6bd
commit 31668b8f7a
28 changed files with 2190 additions and 104 deletions
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21
Lib/test/test_set.py
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@ -9,6 +9,7 @@ from random import randrange, shuffle
import sys
import warnings
import collections
import collections.abc
class PassThru(Exception):
pass
@ -234,6 +235,26 @@ class TestJointOps(unittest.TestCase):
dup = pickle.loads(p)
self.assertEqual(self.s.x, dup.x)
def test_iterator_pickling(self):
itorg = iter(self.s)
data = self.thetype(self.s)
d = pickle.dumps(itorg)
it = pickle.loads(d)
# Set iterators unpickle as list iterators due to the
# undefined order of set items.
# self.assertEqual(type(itorg), type(it))
self.assertTrue(isinstance(it, collections.abc.Iterator))
self.assertEqual(self.thetype(it), data)
it = pickle.loads(d)
try:
drop = next(it)
except StopIteration:
return
d = pickle.dumps(it)
it = pickle.loads(d)
self.assertEqual(self.thetype(it), data - self.thetype((drop,)))
def test_deepcopy(self):
class Tracer:
def __init__(self, value):