/usr/lib/python3/dist-packages/psycopg2/tests/testutils.py is in python3-psycopg2 2.6.1-1build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 | # 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 platform
import sys
from functools import wraps
from .testconfig import dsn
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):
@wraps(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 stubbornness of the Python unittest
# maintainers
# http://bugs.python.org/issue9424
if not hasattr(unittest.TestCase, 'assert_') \
or unittest.TestCase.assertTrue is not unittest.TestCase.assertTrue:
# mavaff...
unittest.TestCase.assertTrue = unittest.TestCase.assertTrue
unittest.TestCase.assertTrue = unittest.TestCase.assertTrue
unittest.TestCase.assertEqual = unittest.TestCase.assertEqual
unittest.TestCase.assertEqual = unittest.TestCase.assertEqual
class ConnectingTestCase(unittest.TestCase):
"""A test case providing connections for tests.
A connection for the test is always available as `self.conn`. Others can be
created with `self.connect()`. All are closed on tearDown.
Subclasses needing to customize setUp and tearDown should remember to call
the base class implementations.
"""
def setUp(self):
self._conns = []
def tearDown(self):
# close the connections used in the test
for conn in self._conns:
if not conn.closed:
conn.close()
def connect(self, **kwargs):
try:
self._conns
except AttributeError as e:
raise AttributeError(
"%s (did you remember calling ConnectingTestCase.setUp()?)"
% e)
import psycopg2
conn = psycopg2.connect(dsn, **kwargs)
self._conns.append(conn)
return conn
def _get_conn(self):
if not hasattr(self, '_the_conn'):
self._the_conn = self.connect()
return self._the_conn
def _set_conn(self, conn):
self._the_conn = conn
conn = property(_get_conn, _set_conn)
def decorate_all_tests(cls, *decorators):
"""
Apply all the *decorators* to all the tests defined in the TestCase *cls*.
"""
for n in dir(cls):
if n.startswith('test'):
for d in decorators:
setattr(cls, n, d(getattr(cls, n)))
def skip_if_no_uuid(f):
"""Decorator to skip a test if uuid is not supported by Py/PG."""
@wraps(f)
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."""
@wraps(f)
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)
return skip_if_tpc_disabled_
def skip_if_no_namedtuple(f):
@wraps(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)
return skip_if_no_namedtuple_
def skip_if_no_iobase(f):
"""Skip a test if io.TextIOBase is not available."""
@wraps(f)
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):
@wraps(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):
@wraps(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):
@wraps(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):
@wraps(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"""
@wraps(f)
def skip_if_no_superuser_(self):
from psycopg2 import ProgrammingError
try:
return f(self)
except ProgrammingError as 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_green(reason):
def skip_if_green_(f):
@wraps(f)
def skip_if_green__(self):
from .testconfig import green
if green:
return self.skipTest(reason)
else:
return f(self)
return skip_if_green__
return skip_if_green_
skip_copy_if_green = skip_if_green("copy in async mode currently not supported")
def skip_if_no_getrefcount(f):
@wraps(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 skip_if_windows(f):
"""Skip a test if run on windows"""
@wraps(f)
def skip_if_windows_(self):
if platform.system() == 'Windows':
return self.skipTest("Not supported on Windows")
else:
return f(self)
return skip_if_windows_
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)
class py3_raises_typeerror(object):
def __enter__(self):
pass
def __exit__(self, type, exc, tb):
if sys.version_info[0] >= 3:
assert type is TypeError
return True
|