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bpo-41344: Raise ValueError when creating shared memory of size 0 (GH-21556)

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Vinay Sharma 2020-08-31 00:33:11 +05:30 • committed by GitHub
parent 582f13786b
commit 475a5fbb56
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12
Lib/test/_test_multiprocessing.py
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@ -3880,6 +3880,18 @@ class _TestSharedMemory(BaseTestCase):
sms.close()
# Test creating a shared memory segment with negative size
with self.assertRaises(ValueError):
sms_invalid = shared_memory.SharedMemory(create=True, size=-1)
# Test creating a shared memory segment with size 0
with self.assertRaises(ValueError):
sms_invalid = shared_memory.SharedMemory(create=True, size=0)
# Test creating a shared memory segment without size argument
with self.assertRaises(ValueError):
sms_invalid = shared_memory.SharedMemory(create=True)
def test_shared_memory_across_processes(self):
# bpo-40135: don't define shared memory block's name in case of
# the failure when we run multiprocessing tests in parallel.