mirror of
https://github.com/psycopg/psycopg2.git
synced 2024-11-25 10:23:43 +03:00
e1eb7a71b0
All the bugfixes from psycopg 2.5 backported on 2.4. I've done this because I've noticed Ubuntu 14.04 LTS is being released with psycopg 2.4.6: if they don't plan to switch to 2.5.x better have these bugs fixed.
261 lines
7.9 KiB
Python
261 lines
7.9 KiB
Python
# 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.
|
|
|
|
import os
|
|
import sys
|
|
|
|
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
|
|
|
|
# Silence warnings caused by the stubborness of the Python unittest maintainers
|
|
# http://bugs.python.org/issue9424
|
|
if not hasattr(unittest.TestCase, 'assert_') \
|
|
or unittest.TestCase.assert_ is not unittest.TestCase.assertTrue:
|
|
# mavaff...
|
|
unittest.TestCase.assert_ = unittest.TestCase.assertTrue
|
|
unittest.TestCase.failUnless = unittest.TestCase.assertTrue
|
|
unittest.TestCase.assertEquals = unittest.TestCase.assertEqual
|
|
unittest.TestCase.failUnlessEqual = unittest.TestCase.assertEqual
|
|
|
|
|
|
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_uuid(f):
|
|
"""Decorator to skip a test if uuid is not supported by Py/PG."""
|
|
def skip_if_no_uuid_(self):
|
|
try:
|
|
import uuid
|
|
except ImportError:
|
|
return self.skipTest("uuid not available in this Python version")
|
|
|
|
try:
|
|
cur = self.conn.cursor()
|
|
cur.execute("select typname from pg_type where typname = 'uuid'")
|
|
has = cur.fetchone()
|
|
finally:
|
|
self.conn.rollback()
|
|
|
|
if has:
|
|
return f(self)
|
|
else:
|
|
return self.skipTest("uuid type not available on the server")
|
|
|
|
return skip_if_no_uuid_
|
|
|
|
|
|
def skip_if_tpc_disabled(f):
|
|
"""Skip a test if the server has tpc support disabled."""
|
|
def skip_if_tpc_disabled_(self):
|
|
from psycopg2 import ProgrammingError
|
|
cnn = self.connect()
|
|
cur = cnn.cursor()
|
|
try:
|
|
cur.execute("SHOW max_prepared_transactions;")
|
|
except ProgrammingError:
|
|
return self.skipTest(
|
|
"server too old: two phase transactions not supported.")
|
|
else:
|
|
mtp = int(cur.fetchone()[0])
|
|
cnn.close()
|
|
|
|
if not mtp:
|
|
return self.skipTest(
|
|
"server not configured for two phase transactions. "
|
|
"set max_prepared_transactions to > 0 to run the test")
|
|
return f(self)
|
|
|
|
skip_if_tpc_disabled_.__name__ = f.__name__
|
|
return skip_if_tpc_disabled_
|
|
|
|
|
|
def skip_if_no_namedtuple(f):
|
|
def skip_if_no_namedtuple_(self):
|
|
try:
|
|
from collections import namedtuple
|
|
except ImportError:
|
|
return self.skipTest("collections.namedtuple not available")
|
|
else:
|
|
return f(self)
|
|
|
|
skip_if_no_namedtuple_.__name__ = f.__name__
|
|
return skip_if_no_namedtuple_
|
|
|
|
|
|
def skip_if_no_iobase(f):
|
|
"""Skip a test if io.TextIOBase is not available."""
|
|
def skip_if_no_iobase_(self):
|
|
try:
|
|
from io import TextIOBase
|
|
except ImportError:
|
|
return self.skipTest("io.TextIOBase not found.")
|
|
else:
|
|
return f(self)
|
|
|
|
return skip_if_no_iobase_
|
|
|
|
|
|
def skip_before_postgres(*ver):
|
|
"""Skip a test on PostgreSQL before a certain version."""
|
|
ver = ver + (0,) * (3 - len(ver))
|
|
def skip_before_postgres_(f):
|
|
def skip_before_postgres__(self):
|
|
if self.conn.server_version < int("%d%02d%02d" % ver):
|
|
return self.skipTest("skipped because PostgreSQL %s"
|
|
% self.conn.server_version)
|
|
else:
|
|
return f(self)
|
|
|
|
return skip_before_postgres__
|
|
return skip_before_postgres_
|
|
|
|
def skip_after_postgres(*ver):
|
|
"""Skip a test on PostgreSQL after (including) a certain version."""
|
|
ver = ver + (0,) * (3 - len(ver))
|
|
def skip_after_postgres_(f):
|
|
def skip_after_postgres__(self):
|
|
if self.conn.server_version >= int("%d%02d%02d" % ver):
|
|
return self.skipTest("skipped because PostgreSQL %s"
|
|
% self.conn.server_version)
|
|
else:
|
|
return f(self)
|
|
|
|
return skip_after_postgres__
|
|
return skip_after_postgres_
|
|
|
|
def skip_before_python(*ver):
|
|
"""Skip a test on Python before a certain version."""
|
|
def skip_before_python_(f):
|
|
def skip_before_python__(self):
|
|
if sys.version_info[:len(ver)] < ver:
|
|
return self.skipTest("skipped because Python %s"
|
|
% ".".join(map(str, sys.version_info[:len(ver)])))
|
|
else:
|
|
return f(self)
|
|
|
|
return skip_before_python__
|
|
return skip_before_python_
|
|
|
|
def skip_from_python(*ver):
|
|
"""Skip a test on Python after (including) a certain version."""
|
|
def skip_from_python_(f):
|
|
def skip_from_python__(self):
|
|
if sys.version_info[:len(ver)] >= ver:
|
|
return self.skipTest("skipped because Python %s"
|
|
% ".".join(map(str, sys.version_info[:len(ver)])))
|
|
else:
|
|
return f(self)
|
|
|
|
return skip_from_python__
|
|
return skip_from_python_
|
|
|
|
def skip_if_no_superuser(f):
|
|
"""Skip a test if the database user running the test is not a superuser"""
|
|
def skip_if_no_superuser_(self):
|
|
from psycopg2 import ProgrammingError
|
|
try:
|
|
return f(self)
|
|
except ProgrammingError, e:
|
|
import psycopg2.errorcodes
|
|
if e.pgcode == psycopg2.errorcodes.INSUFFICIENT_PRIVILEGE:
|
|
self.skipTest("skipped because not superuser")
|
|
else:
|
|
raise
|
|
|
|
return skip_if_no_superuser_
|
|
|
|
|
|
def skip_if_no_getrefcount(f):
|
|
def skip_if_no_getrefcount_(self):
|
|
if not hasattr(sys, 'getrefcount'):
|
|
return self.skipTest('skipped, no sys.getrefcount()')
|
|
else:
|
|
return f(self)
|
|
return skip_if_no_getrefcount_
|
|
|
|
def script_to_py3(script):
|
|
"""Convert a script to Python3 syntax if required."""
|
|
if sys.version_info[0] < 3:
|
|
return script
|
|
|
|
import tempfile
|
|
f = tempfile.NamedTemporaryFile(suffix=".py", delete=False)
|
|
f.write(script.encode())
|
|
f.flush()
|
|
filename = f.name
|
|
f.close()
|
|
|
|
# 2to3 is way too chatty
|
|
import logging
|
|
logging.basicConfig(filename=os.devnull)
|
|
|
|
from lib2to3.main import main
|
|
if main("lib2to3.fixes", ['--no-diffs', '-w', '-n', filename]):
|
|
raise Exception('py3 conversion failed')
|
|
|
|
f2 = open(filename)
|
|
try:
|
|
return f2.read()
|
|
finally:
|
|
f2.close()
|
|
os.remove(filename)
|
|
|