mirror of
https://github.com/psycopg/psycopg2.git
synced 2024-09-21 11:18:49 +03:00
141 lines
4.1 KiB
Python
141 lines
4.1 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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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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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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def decorate_all_tests(cls, decorator):
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"""Apply *decorator* to all the tests defined in the TestCase *cls*."""
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for n in dir(cls):
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if n.startswith('test'):
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setattr(cls, n, decorator(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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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_no_pg_sleep(name):
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"""Decorator to skip a test if pg_sleep is not supported by the server.
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Pass it the name of an attribute containing a connection or of a method
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returning a connection.
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"""
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def skip_if_no_pg_sleep_(f):
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def skip_if_no_pg_sleep__(self):
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cnn = getattr(self, name)
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if callable(cnn):
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cnn = cnn()
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if cnn.server_version < 80200:
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return self.skipTest(
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"server version %s doesn't support pg_sleep"
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% cnn.server_version)
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return f(self)
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skip_if_no_pg_sleep__.__name__ = f.__name__
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return skip_if_no_pg_sleep__
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return skip_if_no_pg_sleep_
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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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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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skip_if_tpc_disabled_.__name__ = f.__name__
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return skip_if_tpc_disabled_
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