121 lines
4.7 KiB
Python
121 lines
4.7 KiB
Python
# Copyright 2018 AT&T Intellectual Property. All other rights reserved.
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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 unittest import mock
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import testtools
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from deckhand.barbican import cache
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from deckhand.tests import test_utils
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from deckhand.tests.unit import base as test_base
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class BarbicanCacheTest(test_base.DeckhandTestCase):
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def setUp(self):
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super(BarbicanCacheTest, self).setUp()
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self.secret_ref = test_utils.rand_barbican_ref()
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self.secret_payload = 'very-secret-payload'
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# Clear the cache between tests.
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cache.invalidate()
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def _mock_barbicanclient(self):
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def call_barbican(action, *args, **kwargs):
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if action == "secrets.create":
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return mock.Mock(**{'store.return_value': self.secret_ref})
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elif action == "secrets.get":
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return mock.Mock(payload=self.secret_payload)
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mock_barbicanclient = mock.Mock()
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mock_barbicanclient.call.side_effect = call_barbican
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return mock_barbicanclient
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@property
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def barbicanclient(self):
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return self._mock_barbicanclient()
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def test_lookup_by_ref_cache(self):
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"""Validate ``lookup_by_ref`` caching works.
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Passing in None in lieu of an actual barbican client (or mock object)
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proves that:
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* if the payload is in the cache, then no error is thrown since the
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cache is hit so no further processing is performed, where otherwise a
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method would be called on `None`
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* if the payload is not in the cache, then following logic above,
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method is called on `None`, raising AttributeError
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"""
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# Validate that caching the ref returns expected payload.
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secret = cache.lookup_by_ref(self.barbicanclient, self.secret_ref)
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self.assertEqual(self.secret_payload, secret.payload)
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# Validate that the cache actually works.
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next_secret = cache.lookup_by_ref(None, self.secret_ref)
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self.assertEqual(secret.payload, next_secret.payload)
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# Validate that the reverse cache works.
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kwargs = {'payload': secret.payload}
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secret_ref = cache.lookup_by_payload(self.barbicanclient, **kwargs)
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self.assertEqual(self.secret_ref, secret_ref)
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# Different ref isn't in cache - expect AttributeError.
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with testtools.ExpectedException(AttributeError):
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cache.lookup_by_ref(None, secret_ref='uh-oh')
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# Invalidate the cache and ensure the original data isn't there.
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cache.invalidate()
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# The cache won't be hit this time - expect AttributeError.
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with testtools.ExpectedException(AttributeError):
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cache.lookup_by_ref(None, self.secret_ref)
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def test_lookup_by_payload_cache(self):
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"""Validate ``lookup_by_payload`` caching works.
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Passing in None in lieu of an actual barbican client (or mock object)
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proves that:
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* if the payload is in the cache, then no error is thrown since the
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cache is hit so no further processing is performed, where otherwise a
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method would be called on `None`
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* if the payload is not in the cache, then following logic above,
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method is called on `None`, raising AttributeError
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"""
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# Validate that caching the payload returns expected ref.
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kwargs = {'payload': self.secret_payload}
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secret_ref = cache.lookup_by_payload(self.barbicanclient, **kwargs)
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self.assertEqual(self.secret_ref, secret_ref)
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# Validate that the cache actually works.
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next_secret_ref = cache.lookup_by_payload(None, **kwargs)
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self.assertEqual(secret_ref, next_secret_ref)
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# Validate that the reverse cache works.
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secret = cache.lookup_by_ref(self.barbicanclient, secret_ref)
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self.assertEqual(self.secret_payload, secret.payload)
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# Different payload isn't in cache - expect AttributeError.
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with testtools.ExpectedException(AttributeError):
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cache.lookup_by_payload(None, payload='uh-oh')
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# Invalidate the cache and ensure the original data isn't there.
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cache.invalidate()
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# The cache won't be hit this time - expect AttributeError.
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with testtools.ExpectedException(AttributeError):
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cache.lookup_by_payload(None, **kwargs)
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