diff options
Diffstat (limited to 'Lib/test/test_list.py')
| -rw-r--r-- | Lib/test/test_list.py | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/Lib/test/test_list.py b/Lib/test/test_list.py index 84b8afe3a4..5df27d30ad 100644 --- a/Lib/test/test_list.py +++ b/Lib/test/test_list.py @@ -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_no_comdat_folding(self): # Issue 8847: In the PGO build, the MSVC linker's COMDAT folding |