oslo.messaging/tests/test_warning.py
Doug Hellmann e55a83e832 Move files out of the namespace package
Move the public API out of oslo.messaging to oslo_messaging. Retain
the ability to import from the old namespace package for backwards
compatibility for this release cycle.

bp/drop-namespace-packages

Co-authored-by: Mehdi Abaakouk <mehdi.abaakouk@enovance.com>
Change-Id: Ia562010c152a214f1c0fed767c82022c7c2c52e7
2015-01-12 12:50:41 -05:00

62 lines
2.5 KiB
Python

# 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 imp
import os
import warnings
import mock
from oslotest import base as test_base
import six
class DeprecationWarningTest(test_base.BaseTestCase):
@mock.patch('warnings.warn')
def test_warning(self, mock_warn):
import oslo.messaging
imp.reload(oslo.messaging)
self.assertTrue(mock_warn.called)
args = mock_warn.call_args
self.assertIn('oslo_messaging', args[0][0])
self.assertIn('deprecated', args[0][0])
self.assertTrue(issubclass(args[0][1], DeprecationWarning))
def test_real_warning(self):
with warnings.catch_warnings(record=True) as warning_msgs:
warnings.resetwarnings()
warnings.simplefilter('always', DeprecationWarning)
import oslo.messaging
# Use a separate function to get the stack level correct
# so we know the message points back to this file. This
# corresponds to an import or reload, which isn't working
# inside the test under Python 3.3. That may be due to a
# difference in the import implementation not triggering
# warnings properly when the module is reloaded, or
# because the warnings module is mostly implemented in C
# and something isn't cleanly resetting the global state
# used to track whether a warning needs to be
# emitted. Whatever the cause, we definitely see the
# warnings.warn() being invoked on a reload (see the test
# above) and warnings are reported on the console when we
# run the tests. A simpler test script run outside of
# testr does correctly report the warnings.
def foo():
oslo.messaging.deprecated()
foo()
self.assertEqual(1, len(warning_msgs))
msg = warning_msgs[0]
self.assertIn('oslo_messaging', six.text_type(msg.message))
self.assertEqual('test_warning.py', os.path.basename(msg.filename))