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#!/usr/bin/env python
# test_errcodes.py - unit test for psycopg2.errcodes module
#
# Copyright (C) 2015 Daniele Varrazzo <daniele.varrazzo@gmail.com>
#
# 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.
from .testutils import unittest, ConnectingTestCase
import importlib
try:
reload
except NameError:
from imp import reload
from threading import Thread
from psycopg2 import errorcodes
class ErrocodeTests(ConnectingTestCase):
def test_lookup_threadsafe(self):
# Increase if it does not fail with KeyError
MAX_CYCLES = 2000
errs = []
def f(pg_code='40001'):
try:
errorcodes.lookup(pg_code)
except Exception as e:
errs.append(e)
for __ in range(MAX_CYCLES):
importlib.reload(errorcodes)
(t1, t2) = (Thread(target=f), Thread(target=f))
(t1.start(), t2.start())
(t1.join(), t2.join())
if errs:
self.fail(
"raised %s errors in %s cycles (first is %s %s)" % (
len(errs), MAX_CYCLES,
errs[0].__class__.__name__, errs[0]))
def test_suite():
return unittest.TestLoader().loadTestsFromName(__name__)
if __name__ == "__main__":
unittest.main()
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