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Issue 11004: Fix edge case for deque.count().

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This commit is contained in:
Raymond Hettinger 2011-01-25 21:43:29 +00:00
parent 51581de168
commit 57a8689b55
3 changed files with 18 additions and 4 deletions
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9
Lib/test/test_deque.py
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@ -137,6 +137,15 @@ class TestBasic(unittest.TestCase):
m.d = d
self.assertRaises(RuntimeError, d.count, 3)
# test issue11004
# block advance failed after rotation aligned elements on right side of block
d = deque([None]*16)
for i in range(len(d)):
d.rotate(-1)
d.rotate(1)
self.assertEqual(d.count(1), 0)
self.assertEqual(d.count(None), 16)
def test_comparisons(self):
d = deque('xabc'); d.popleft()
for e in [d, deque('abc'), deque('ab'), deque(), list(d)]: