111 lines
3.7 KiB
Python
111 lines
3.7 KiB
Python
# Copyright 2018 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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import mock
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import unittest
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import provides
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_hook_args = {}
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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 determine
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# the class we're attached to, as the decorator only gets the function.
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_hook_args[f.__name__] = dict(args=args, kwargs=kwargs)
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return f
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return inner
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class TestCinderBackupProvides(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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cls._patched_hook = mock.patch('charms.reactive.hook', mock_hook)
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cls._patched_hook_started = cls._patched_hook.start()
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# force provides 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(provides)
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except NameError:
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import importlib
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importlib.reload(provides)
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@classmethod
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def tearDownClass(cls):
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cls._patched_hook.stop()
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cls._patched_hook_started = None
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cls._patched_hook = None
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# and fix any breakage we did to the module
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try:
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reload(provides)
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except NameError:
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import importlib
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importlib.reload(provides)
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def setUp(self):
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self.cbr = provides.CinderBackupProvides('some-relation', [])
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self._patches = {}
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self._patches_start = {}
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def tearDown(self):
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self.cbr = None
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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_cinder_backup_rel(self, attr, return_value=None):
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mocked = mock.patch.object(self.cbr, 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 patch_topublish(self):
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self.patch_cinder_backup_rel('_relations')
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relation = mock.MagicMock()
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to_publish = mock.PropertyMock()
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type(relation).to_publish = to_publish
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self._relations.__iter__.return_value = [relation]
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return relation.to_publish
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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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hook_patterns = {
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'joined': ('{provides:backup-backend}-relation-joined', ),
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'changed': ('{provides:backup-backend}-relation-changed', ),
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'departed': (
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'{provides:backup-backend}-relation-{broken,departed}', ),
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}
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for k, v in _hook_args.items():
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self.assertEqual(hook_patterns[k], v['args'])
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def test_publish_backend_info(self):
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to_publish = self.patch_topublish()
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name = 'FAKENAME'
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configuration = {'a': 'A', 'b': 'B'}
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self.cbr.publish(name, configuration)
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to_publish.__setitem__.assert_has_calls([
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mock.call('backend_name', name),
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mock.call('subordinate_configuration', configuration)
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])
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