faiss/tests/test_oom_exception.py

35 lines
1.1 KiB
Python

# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
import sys
import faiss
import unittest
import platform
class TestOOMException(unittest.TestCase):
@unittest.skipIf(platform.system() != 'Linux',
'Test is Linux only.')
def test_outrageous_alloc(self):
import resource
# https://github.com/facebookresearch/faiss/issues/758
soft_as, hard_as = resource.getrlimit(resource.RLIMIT_AS)
# make sure that allocing more than 10G will fail
resource.setrlimit(resource.RLIMIT_AS, (10 * 1024 * 1024, hard_as))
try:
x = faiss.Int32Vector()
try:
x.resize(10**11) # 400 G of RAM
except MemoryError:
pass # good, that's what we expect
else:
assert False, "should raise exception"
finally:
resource.setrlimit(resource.RLIMIT_AS, (soft_as, hard_as))
if __name__ == '__main__':
unittest.main()