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# Copyright (c) 2013 OpenStack Foundation
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import functools
from oslo_utils import reflection
ALLOWED_DIALECTS = ['sqlite', 'mysql', 'postgresql']
def backend_specific(*dialects):
"""Decorator to skip backend specific tests on inappropriate engines.
::dialects: list of dialects names under which the test will be launched.
"""
def wrap(f):
@functools.wraps(f)
def ins_wrap(self):
if not set(dialects).issubset(ALLOWED_DIALECTS):
raise ValueError(
"Please use allowed dialects: %s" % ALLOWED_DIALECTS)
if self.engine.name not in dialects:
msg = ('The test "%s" can be run '
'only on %s. Current engine is %s.')
args = (reflection.get_callable_name(f), ', '.join(dialects),
self.engine.name)
self.skipTest(msg % args)
else:
return f(self)
return ins_wrap
return wrap
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