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Issue #26492: Exhausted iterator of array.array now conforms with the behavior

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of iterators of other mutable sequences: it lefts exhausted even if iterated
array is extended.
This commit is contained in:
Serhiy Storchaka 2016-03-30 21:11:16 +03:00
parent f39c0ac62f
commit ab0d198c7a
3 changed files with 41 additions and 6 deletions
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21
Lib/test/test_array.py
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@ -318,8 +318,19 @@ def test_iterator_pickle(self):
d = pickle.dumps((itorig, orig), proto)
it, a = pickle.loads(d)
a.fromlist(data2)
self.assertEqual(type(it), type(itorig))
self.assertEqual(list(it), data2)
self.assertEqual(list(it), [])
def test_exhausted_iterator(self):
a = array.array(self.typecode, self.example)
self.assertEqual(list(a), list(self.example))
exhit = iter(a)
empit = iter(a)
for x in exhit: # exhaust the iterator
next(empit) # not exhausted
a.append(self.outside)
self.assertEqual(list(exhit), [])
self.assertEqual(list(empit), [self.outside])
self.assertEqual(list(a), list(self.example) + [self.outside])
def test_insert(self):
a = array.array(self.typecode, self.example)
@ -1070,6 +1081,12 @@ def test_obsolete_write_lock(self):
a = array.array('B', b"")
self.assertRaises(BufferError, getbuffer_with_null_view, a)
def test_free_after_iterating(self):
support.check_free_after_iterating(self, iter, array.array,
(self.typecode,))
support.check_free_after_iterating(self, reversed, array.array,
(self.typecode,))
class StringTest(BaseTest):
def test_setitem(self):