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Closes #15469: Correct __sizeof__ support for deque

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Jesus Cea 2012-08-03 14:49:42 +02:00
parent e9c5318967
commit 16e2fca47e
3 changed files with 39 additions and 1 deletions
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16
Lib/test/test_deque.py
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@ -7,6 +7,7 @@ import copy
import pickle
from io import StringIO
import random
import struct
BIG = 100000
@ -518,6 +519,21 @@ class TestBasic(unittest.TestCase):
gc.collect()
self.assertTrue(ref() is None, "Cycle was not collected")
check_sizeof = support.check_sizeof
@support.cpython_only
def test_sizeof(self):
BLOCKLEN = 62
basesize = support.calcobjsize('2P4PlP')
blocksize = struct.calcsize('2P%dP' % BLOCKLEN)
self.assertEqual(object.__sizeof__(deque()), basesize)
check = self.check_sizeof
check(deque(), basesize + blocksize)
check(deque('a'), basesize + blocksize)
check(deque('a' * (BLOCKLEN // 2)), basesize + blocksize)
check(deque('a' * (BLOCKLEN // 2 + 1)), basesize + 2 * blocksize)
check(deque('a' * (42 * BLOCKLEN)), basesize + 43 * blocksize)
class TestVariousIteratorArgs(unittest.TestCase):
def test_constructor(self):