62 lines
2.5 KiB
Python
62 lines
2.5 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import imp
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import os
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import warnings
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import mock
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from oslotest import base as test_base
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import six
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class DeprecationWarningTest(test_base.BaseTestCase):
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@mock.patch('warnings.warn')
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def test_warning(self, mock_warn):
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import oslo.messaging
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imp.reload(oslo.messaging)
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self.assertTrue(mock_warn.called)
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args = mock_warn.call_args
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self.assertIn('oslo_messaging', args[0][0])
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self.assertIn('deprecated', args[0][0])
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self.assertTrue(issubclass(args[0][1], DeprecationWarning))
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def test_real_warning(self):
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with warnings.catch_warnings(record=True) as warning_msgs:
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warnings.resetwarnings()
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warnings.simplefilter('always', DeprecationWarning)
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import oslo.messaging
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# Use a separate function to get the stack level correct
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# so we know the message points back to this file. This
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# corresponds to an import or reload, which isn't working
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# inside the test under Python 3.3. That may be due to a
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# difference in the import implementation not triggering
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# warnings properly when the module is reloaded, or
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# because the warnings module is mostly implemented in C
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# and something isn't cleanly resetting the global state
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# used to track whether a warning needs to be
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# emitted. Whatever the cause, we definitely see the
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# warnings.warn() being invoked on a reload (see the test
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# above) and warnings are reported on the console when we
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# run the tests. A simpler test script run outside of
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# testr does correctly report the warnings.
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def foo():
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oslo.messaging.deprecated()
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foo()
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self.assertEqual(1, len(warning_msgs))
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msg = warning_msgs[0]
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self.assertIn('oslo_messaging', six.text_type(msg.message))
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self.assertEqual('test_warning.py', os.path.basename(msg.filename))
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