diff options
Diffstat (limited to 'Lib/test')
| -rw-r--r-- | Lib/test/test_deque.py | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/Lib/test/test_deque.py b/Lib/test/test_deque.py index 0dcadeb..f0afe1d 100644 --- a/Lib/test/test_deque.py +++ b/Lib/test/test_deque.py @@ -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): |