tempest/tempest/tests/base.py

59 lines
2.1 KiB
Python

# Copyright 2013 IBM Corp.
#
# 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 os
import fixtures
import mock
import testtools
from tempest.openstack.common.fixture import moxstubout
class TestCase(testtools.TestCase):
def setUp(self):
super(TestCase, self).setUp()
if (os.environ.get('OS_STDOUT_CAPTURE') == 'True' or
os.environ.get('OS_STDOUT_CAPTURE') == '1'):
stdout = self.useFixture(fixtures.StringStream('stdout')).stream
self.useFixture(fixtures.MonkeyPatch('sys.stdout', stdout))
if (os.environ.get('OS_STDERR_CAPTURE') == 'True' or
os.environ.get('OS_STDERR_CAPTURE') == '1'):
stderr = self.useFixture(fixtures.StringStream('stderr')).stream
self.useFixture(fixtures.MonkeyPatch('sys.stderr', stderr))
mox_fixture = self.useFixture(moxstubout.MoxStubout())
self.mox = mox_fixture.mox
self.stubs = mox_fixture.stubs
def patch(self, target, **kwargs):
"""
Returns a started `mock.patch` object for the supplied target.
The caller may then call the returned patcher to create a mock object.
The caller does not need to call stop() on the returned
patcher object, as this method automatically adds a cleanup
to the test class to stop the patcher.
:param target: String module.class or module.object expression to patch
:param **kwargs: Passed as-is to `mock.patch`. See mock documentation
for details.
"""
p = mock.patch(target, **kwargs)
m = p.start()
self.addCleanup(p.stop)
return m