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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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28
Lib/test/test_list.py
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@ -1,5 +1,6 @@
import sys
from test import support, list_tests
import pickle
class ListTest(list_tests.CommonTest):
type2test = list
@ -69,6 +70,33 @@ class ListTest(list_tests.CommonTest):
check(10) # check our checking code
check(1000000)
def test_iterator_pickle(self):
# Userlist iterators don't support pickling yet since
# they are based on generators.
data = self.type2test([4, 5, 6, 7])
it = itorg = iter(data)
d = pickle.dumps(it)
it = pickle.loads(d)
self.assertEqual(type(itorg), type(it))
self.assertEqual(self.type2test(it), self.type2test(data))
it = pickle.loads(d)
next(it)
d = pickle.dumps(it)
self.assertEqual(self.type2test(it), self.type2test(data)[1:])
def test_reversed_pickle(self):
data = self.type2test([4, 5, 6, 7])
it = itorg = reversed(data)
d = pickle.dumps(it)
it = pickle.loads(d)
self.assertEqual(type(itorg), type(it))
self.assertEqual(self.type2test(it), self.type2test(reversed(data)))
it = pickle.loads(d)
next(it)
d = pickle.dumps(it)
self.assertEqual(self.type2test(it), self.type2test(reversed(data))[1:])
def test_main(verbose=None):
support.run_unittest(ListTest)