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authorAntoine Pitrou <solipsis@pitrou.net>2015-03-10 21:35:24 (GMT)
committerAntoine Pitrou <solipsis@pitrou.net>2015-03-10 21:35:24 (GMT)
commit63afdaa1105de24e87658e82de314a37d341f02b (patch)
treef9795c023e2737feb82f974f351beff0b665d87d /Lib/test/test_buffer.py
parent12541dc22ef3bbc2469b910eeb8daa4cd5675873 (diff)
parenta654510150cb738b61033c32e30bd4be9f0ed6ed (diff)
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Issue #23629: Fix the default __sizeof__ implementation for variable-sized objects.
Diffstat (limited to 'Lib/test/test_buffer.py')
-rw-r--r--Lib/test/test_buffer.py15
1 files changed, 15 insertions, 0 deletions
diff --git a/Lib/test/test_buffer.py b/Lib/test/test_buffer.py
index 0976fa9..d921a5a 100644
--- a/Lib/test/test_buffer.py
+++ b/Lib/test/test_buffer.py
@@ -2462,6 +2462,21 @@ class TestBufferProtocol(unittest.TestCase):
self.assertEqual(m.tobytes(), b'')
self.assertEqual(m.tolist(), [])
+ check_sizeof = support.check_sizeof
+
+ def test_memoryview_sizeof(self):
+ check = self.check_sizeof
+ vsize = support.calcvobjsize
+ base_struct = 'Pnin 2P2n2i5P P'
+ per_dim = '3n'
+
+ items = list(range(8))
+ check(memoryview(b''), vsize(base_struct + 1 * per_dim))
+ a = ndarray(items, shape=[2, 4], format="b")
+ check(memoryview(a), vsize(base_struct + 2 * per_dim))
+ a = ndarray(items, shape=[2, 2, 2], format="b")
+ check(memoryview(a), vsize(base_struct + 3 * per_dim))
+
def test_memoryview_struct_module(self):
class INT(object):