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#!/usr/bin/env python
# bug_gc.py - test for refcounting/GC bug
#
# Copyright (C) 2010-2019 Federico Di Gregorio <fog@debian.org>
#
# psycopg2 is free software: you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# In addition, as a special exception, the copyright holders give
# permission to link this program with the OpenSSL library (or with
# modified versions of OpenSSL that use the same license as OpenSSL),
# and distribute linked combinations including the two.
#
# You must obey the GNU Lesser General Public License in all respects for
# all of the code used other than OpenSSL.
#
# psycopg2 is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
# License for more details.
import psycopg2
import psycopg2.extensions
import unittest
import gc
from .testutils import ConnectingTestCase, skip_if_no_uuid
class StolenReferenceTestCase(ConnectingTestCase):
@skip_if_no_uuid
def test_stolen_reference_bug(self):
def fish(val, cur):
gc.collect()
return 42
UUID = psycopg2.extensions.new_type((2950,), "UUID", fish)
psycopg2.extensions.register_type(UUID, self.conn)
curs = self.conn.cursor()
curs.execute("select 'b5219e01-19ab-4994-b71e-149225dc51e4'::uuid")
curs.fetchone()
def test_suite():
return unittest.TestLoader().loadTestsFromName(__name__)
if __name__ == "__main__":
unittest.main()
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