Skip to content
Merged
Changes from 1 commit
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
Next Next commit
gh-124722: Fix leak in test_detach_materialized_dict_no_memory
  • Loading branch information
sobolevn committed Sep 29, 2024
commit d42f6c052863595ebfaedd076893ef57f84b9d2f
45 changes: 31 additions & 14 deletions Lib/test/test_class.py
Original file line number Diff line number Diff line change
@@ -1,7 +1,8 @@
"Test the functionality of Python classes implementing operators."

import unittest
import test.support
from test.support import cpython_only
from test.support import import_helper, script_helper

testmeths = [

Expand Down Expand Up @@ -933,20 +934,36 @@ class C:
C.a = X()
C.a = X()

@cpython_only
def test_detach_materialized_dict_no_memory(self):
import _testcapi
class A:
def __init__(self):
self.a = 1
self.b = 2
a = A()
d = a.__dict__
with test.support.catch_unraisable_exception() as ex:
_testcapi.set_nomemory(0, 1)
del a
self.assertEqual(ex.unraisable.exc_type, MemoryError)
with self.assertRaises(KeyError):
d["a"]
# Skip test if _testcapi is not available:
import_helper.import_module('_testcapi')

code = """if 1:
import test.support
import _testcapi

class A:
def __init__(self):
self.a = 1
self.b = 2
a = A()
d = a.__dict__
with test.support.catch_unraisable_exception() as ex:
_testcapi.set_nomemory(0, 1)
del a
assert ex.unraisable.exc_type is MemoryError
try:
d["a"]
except KeyError:
pass
else:
assert False, "KeyError not raised"
"""
rc, out, err = script_helper.assert_python_ok("-c", code)
self.assertEqual(rc, 0)
self.assertFalse(out, msg=out.decode('utf-8'))
self.assertFalse(err, msg=err.decode('utf-8'))

if __name__ == '__main__':
unittest.main()