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# testutils.py - utility module for psycopg2 testing.
#
# Copyright (C) 2010-2011 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.
# Use unittest2 if available. Otherwise mock a skip facility with warnings.
try:
import unittest2
unittest = unittest2
except ImportError:
import unittest
unittest2 = None
if hasattr(unittest, 'skipIf'):
skip = unittest.skip
skipIf = unittest.skipIf
else:
import warnings
def skipIf(cond, msg):
def skipIf_(f):
def skipIf__(self):
if cond:
warnings.warn(msg)
return
else:
return f(self)
return skipIf__
return skipIf_
def skip(msg):
return skipIf(True, msg)
def skipTest(self, msg):
warnings.warn(msg)
return
unittest.TestCase.skipTest = skipTest
def decorate_all_tests(cls, decorator):
"""Apply *decorator* to all the tests defined in the TestCase *cls*."""
for n in dir(cls):
if n.startswith('test'):
setattr(cls, n, decorator(getattr(cls, n)))
def skip_if_no_pg_sleep(name):
"""Decorator to skip a test if pg_sleep is not supported by the server.
Pass it the name of an attribute containing a connection or of a method
returning a connection.
"""
def skip_if_no_pg_sleep_(f):
def skip_if_no_pg_sleep__(self):
cnn = getattr(self, name)
if callable(cnn):
cnn = cnn()
if cnn.server_version < 80100:
return self.skipTest(
"server version %s doesn't support pg_sleep"
% cnn.server_version)
return f(self)
skip_if_no_pg_sleep__.__name__ = f.__name__
return skip_if_no_pg_sleep__
return skip_if_no_pg_sleep_
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