116 lines
3.7 KiB
Python
116 lines
3.7 KiB
Python
# Copyright 2019 Canonical Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import absolute_import
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from __future__ import print_function
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import unittest
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import mock
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import reactive.cinder_backup_swift_handlers as handlers
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_when_args = {}
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_when_not_args = {}
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def mock_hook_factory(d):
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def mock_hook(*args, **kwargs):
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def inner(f):
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# remember what we were passed. Note that we can't actually
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# determine the class we're attached to, as the decorator only gets
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# the function.
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try:
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d[f.__name__].append(dict(args=args, kwargs=kwargs))
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except KeyError:
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d[f.__name__] = [dict(args=args, kwargs=kwargs)]
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return f
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return inner
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return mock_hook
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class TestCinderBackupSwiftHandlers(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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cls._patched_when = mock.patch('charms.reactive.when',
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mock_hook_factory(_when_args))
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cls._patched_when_started = cls._patched_when.start()
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cls._patched_when_not = mock.patch('charms.reactive.when_not',
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mock_hook_factory(_when_not_args))
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cls._patched_when_not_started = cls._patched_when_not.start()
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# force requires to rerun the mock_hook decorator:
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# try except is Python2/Python3 compatibility as Python3 has moved
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# reload to importlib.
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try:
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reload(handlers)
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except NameError:
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import importlib
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importlib.reload(handlers)
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@classmethod
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def tearDownClass(cls):
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cls._patched_when.stop()
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cls._patched_when_started = None
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cls._patched_when = None
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cls._patched_when_not.stop()
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cls._patched_when_not_started = None
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cls._patched_when_not = None
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# and fix any breakage we did to the module
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try:
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reload(handlers)
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except NameError:
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import importlib
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importlib.reload(handlers)
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def setUp(self):
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self._patches = {}
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self._patches_start = {}
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def tearDown(self):
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for k, v in self._patches.items():
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v.stop()
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setattr(self, k, None)
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self._patches = None
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self._patches_start = None
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def patch(self, obj, attr, return_value=None):
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mocked = mock.patch.object(obj, attr)
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self._patches[attr] = mocked
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started = mocked.start()
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started.return_value = return_value
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self._patches_start[attr] = started
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setattr(self, attr, started)
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def test_registered_hooks(self):
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# test that the hooks actually registered the relation expressions that
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# are meaningful for this interface: this is to handle regressions.
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# The keys are the function names that the hook attaches to.
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when_patterns = {
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'configure_cinder_backup': [
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('backup-backend.available', )],
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}
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# check the when hooks are attached to the expected functions
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for t, p in [(_when_args, when_patterns),
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]:
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for f, args in t.items():
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# check that function is in patterns
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self.assertTrue(f in p.keys())
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