diff options
Diffstat (limited to 'Lib/test/test_tuple.py')
| -rw-r--r-- | Lib/test/test_tuple.py | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/Lib/test/test_tuple.py b/Lib/test/test_tuple.py index 6e934fb882..e41711c8e6 100644 --- a/Lib/test/test_tuple.py +++ b/Lib/test/test_tuple.py @@ -1,6 +1,7 @@ from test import support, seq_tests import gc +import pickle class TupleTest(seq_tests.CommonTest): type2test = tuple @@ -164,6 +165,34 @@ class TupleTest(seq_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]) + itorg = iter(data) + d = pickle.dumps(itorg) + 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]) + itorg = reversed(data) + d = pickle.dumps(itorg) + 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 # optimization causes failures in code that relies on distinct |