mirror of
https://github.com/psycopg/psycopg2.git
synced 2024-11-25 18:33:44 +03:00
6933b3bece
The Windows server version of PostgreSQL uses a function called pgkill in the file kill.c in place of the UNIX kill function. This pgkill function simulates some of the SIGHUP like commands by passing signals through a named pipe. Because it is passing the signal through a pipe, the server doesn't get the kill signal immediately and therefore fails the test on test_connection.ConnectionTests.test_cleanup_on_badconn_close. Ideally, the test should check to see if the server is running on Windows, not the psycopg.
354 lines
10 KiB
Python
354 lines
10 KiB
Python
# testutils.py - utility module for psycopg2 testing.
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#
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# Copyright (C) 2010-2011 Daniele Varrazzo <daniele.varrazzo@gmail.com>
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#
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# psycopg2 is free software: you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published
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# by the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# In addition, as a special exception, the copyright holders give
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# permission to link this program with the OpenSSL library (or with
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# modified versions of OpenSSL that use the same license as OpenSSL),
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# and distribute linked combinations including the two.
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#
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# You must obey the GNU Lesser General Public License in all respects for
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# all of the code used other than OpenSSL.
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#
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# psycopg2 is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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# License for more details.
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# Use unittest2 if available. Otherwise mock a skip facility with warnings.
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import os
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import platform
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import sys
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from functools import wraps
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from testconfig import dsn
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try:
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import unittest2
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unittest = unittest2
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except ImportError:
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import unittest
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unittest2 = None
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if hasattr(unittest, 'skipIf'):
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skip = unittest.skip
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skipIf = unittest.skipIf
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else:
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import warnings
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def skipIf(cond, msg):
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def skipIf_(f):
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@wraps(f)
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def skipIf__(self):
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if cond:
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warnings.warn(msg)
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return
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else:
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return f(self)
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return skipIf__
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return skipIf_
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def skip(msg):
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return skipIf(True, msg)
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def skipTest(self, msg):
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warnings.warn(msg)
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return
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unittest.TestCase.skipTest = skipTest
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# Silence warnings caused by the stubborness of the Python unittest maintainers
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# http://bugs.python.org/issue9424
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if not hasattr(unittest.TestCase, 'assert_') \
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or unittest.TestCase.assert_ is not unittest.TestCase.assertTrue:
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# mavaff...
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unittest.TestCase.assert_ = unittest.TestCase.assertTrue
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unittest.TestCase.failUnless = unittest.TestCase.assertTrue
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unittest.TestCase.assertEquals = unittest.TestCase.assertEqual
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unittest.TestCase.failUnlessEqual = unittest.TestCase.assertEqual
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class ConnectingTestCase(unittest.TestCase):
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"""A test case providing connections for tests.
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A connection for the test is always available as `self.conn`. Others can be
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created with `self.connect()`. All are closed on tearDown.
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Subclasses needing to customize setUp and tearDown should remember to call
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the base class implementations.
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"""
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def setUp(self):
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self._conns = []
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def tearDown(self):
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# close the connections used in the test
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for conn in self._conns:
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if not conn.closed:
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conn.close()
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def connect(self, **kwargs):
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try:
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self._conns
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except AttributeError, e:
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raise AttributeError(
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"%s (did you remember calling ConnectingTestCase.setUp()?)"
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% e)
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import psycopg2
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conn = psycopg2.connect(dsn, **kwargs)
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self._conns.append(conn)
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return conn
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def _get_conn(self):
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if not hasattr(self, '_the_conn'):
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self._the_conn = self.connect()
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return self._the_conn
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def _set_conn(self, conn):
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self._the_conn = conn
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conn = property(_get_conn, _set_conn)
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def decorate_all_tests(cls, *decorators):
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"""
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Apply all the *decorators* to all the tests defined in the TestCase *cls*.
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"""
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for n in dir(cls):
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if n.startswith('test'):
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for d in decorators:
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setattr(cls, n, d(getattr(cls, n)))
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def skip_if_no_uuid(f):
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"""Decorator to skip a test if uuid is not supported by Py/PG."""
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@wraps(f)
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def skip_if_no_uuid_(self):
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try:
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import uuid
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except ImportError:
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return self.skipTest("uuid not available in this Python version")
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try:
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cur = self.conn.cursor()
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cur.execute("select typname from pg_type where typname = 'uuid'")
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has = cur.fetchone()
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finally:
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self.conn.rollback()
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if has:
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return f(self)
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else:
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return self.skipTest("uuid type not available on the server")
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return skip_if_no_uuid_
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def skip_if_tpc_disabled(f):
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"""Skip a test if the server has tpc support disabled."""
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@wraps(f)
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def skip_if_tpc_disabled_(self):
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from psycopg2 import ProgrammingError
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cnn = self.connect()
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cur = cnn.cursor()
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try:
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cur.execute("SHOW max_prepared_transactions;")
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except ProgrammingError:
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return self.skipTest(
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"server too old: two phase transactions not supported.")
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else:
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mtp = int(cur.fetchone()[0])
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cnn.close()
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if not mtp:
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return self.skipTest(
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"server not configured for two phase transactions. "
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"set max_prepared_transactions to > 0 to run the test")
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return f(self)
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return skip_if_tpc_disabled_
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def skip_if_no_namedtuple(f):
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@wraps(f)
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def skip_if_no_namedtuple_(self):
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try:
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from collections import namedtuple
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except ImportError:
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return self.skipTest("collections.namedtuple not available")
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else:
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return f(self)
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return skip_if_no_namedtuple_
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def skip_if_no_iobase(f):
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"""Skip a test if io.TextIOBase is not available."""
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@wraps(f)
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def skip_if_no_iobase_(self):
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try:
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from io import TextIOBase
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except ImportError:
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return self.skipTest("io.TextIOBase not found.")
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else:
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return f(self)
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return skip_if_no_iobase_
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def skip_before_postgres(*ver):
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"""Skip a test on PostgreSQL before a certain version."""
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ver = ver + (0,) * (3 - len(ver))
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def skip_before_postgres_(f):
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@wraps(f)
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def skip_before_postgres__(self):
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if self.conn.server_version < int("%d%02d%02d" % ver):
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return self.skipTest("skipped because PostgreSQL %s"
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% self.conn.server_version)
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else:
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return f(self)
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return skip_before_postgres__
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return skip_before_postgres_
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def skip_after_postgres(*ver):
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"""Skip a test on PostgreSQL after (including) a certain version."""
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ver = ver + (0,) * (3 - len(ver))
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def skip_after_postgres_(f):
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@wraps(f)
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def skip_after_postgres__(self):
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if self.conn.server_version >= int("%d%02d%02d" % ver):
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return self.skipTest("skipped because PostgreSQL %s"
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% self.conn.server_version)
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else:
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return f(self)
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return skip_after_postgres__
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return skip_after_postgres_
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def skip_before_python(*ver):
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"""Skip a test on Python before a certain version."""
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def skip_before_python_(f):
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@wraps(f)
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def skip_before_python__(self):
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if sys.version_info[:len(ver)] < ver:
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return self.skipTest("skipped because Python %s"
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% ".".join(map(str, sys.version_info[:len(ver)])))
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else:
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return f(self)
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return skip_before_python__
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return skip_before_python_
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def skip_from_python(*ver):
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"""Skip a test on Python after (including) a certain version."""
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def skip_from_python_(f):
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@wraps(f)
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def skip_from_python__(self):
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if sys.version_info[:len(ver)] >= ver:
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return self.skipTest("skipped because Python %s"
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% ".".join(map(str, sys.version_info[:len(ver)])))
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else:
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return f(self)
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return skip_from_python__
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return skip_from_python_
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def skip_if_no_superuser(f):
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"""Skip a test if the database user running the test is not a superuser"""
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@wraps(f)
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def skip_if_no_superuser_(self):
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from psycopg2 import ProgrammingError
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try:
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return f(self)
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except ProgrammingError, e:
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import psycopg2.errorcodes
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if e.pgcode == psycopg2.errorcodes.INSUFFICIENT_PRIVILEGE:
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self.skipTest("skipped because not superuser")
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else:
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raise
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return skip_if_no_superuser_
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def skip_if_green(reason):
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def skip_if_green_(f):
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@wraps(f)
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def skip_if_green__(self):
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from testconfig import green
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if green:
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return self.skipTest(reason)
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else:
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return f(self)
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return skip_if_green__
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return skip_if_green_
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skip_copy_if_green = skip_if_green("copy in async mode currently not supported")
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def skip_if_no_getrefcount(f):
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@wraps(f)
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def skip_if_no_getrefcount_(self):
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if not hasattr(sys, 'getrefcount'):
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return self.skipTest('skipped, no sys.getrefcount()')
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else:
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return f(self)
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return skip_if_no_getrefcount_
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def skip_if_windows(f):
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"""Skip a test if run on windows"""
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@wraps(f)
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def skip_if_windows_(self):
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if platform.system() == 'Windows':
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return self.skipTest("Not supported on Windows")
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else:
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return f(self)
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return skip_if_windows_
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def script_to_py3(script):
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"""Convert a script to Python3 syntax if required."""
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if sys.version_info[0] < 3:
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return script
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import tempfile
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f = tempfile.NamedTemporaryFile(suffix=".py", delete=False)
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f.write(script.encode())
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f.flush()
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filename = f.name
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f.close()
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# 2to3 is way too chatty
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import logging
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logging.basicConfig(filename=os.devnull)
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from lib2to3.main import main
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if main("lib2to3.fixes", ['--no-diffs', '-w', '-n', filename]):
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raise Exception('py3 conversion failed')
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f2 = open(filename)
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try:
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return f2.read()
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finally:
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f2.close()
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os.remove(filename)
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class py3_raises_typeerror(object):
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def __enter__(self):
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pass
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def __exit__(self, type, exc, tb):
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if sys.version_info[0] >= 3:
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assert type is TypeError
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return True
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