105 lines
3.8 KiB
Python
105 lines
3.8 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright (C) 2013 Rackspace Hosting All Rights Reserved.
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#
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# 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 contextlib
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import os
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import shutil
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import tempfile
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from oslo_utils import uuidutils
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import testscenarios
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from taskflow import exceptions as exc
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from taskflow.persistence import backends
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from taskflow.persistence.backends import impl_dir
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from taskflow.persistence import models
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from taskflow import test
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from taskflow.tests.unit.persistence import base
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class DirPersistenceTest(testscenarios.TestWithScenarios,
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test.TestCase, base.PersistenceTestMixin):
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scenarios = [
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('no_cache', {'max_cache_size': None}),
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('one', {'max_cache_size': 1}),
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('tiny', {'max_cache_size': 256}),
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('medimum', {'max_cache_size': 512}),
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('large', {'max_cache_size': 1024}),
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]
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def _get_connection(self):
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return self.backend.get_connection()
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def setUp(self):
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super(DirPersistenceTest, self).setUp()
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self.path = tempfile.mkdtemp()
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self.backend = impl_dir.DirBackend({
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'path': self.path,
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'max_cache_size': self.max_cache_size,
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})
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with contextlib.closing(self._get_connection()) as conn:
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conn.upgrade()
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def tearDown(self):
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super(DirPersistenceTest, self).tearDown()
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if self.path and os.path.isdir(self.path):
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shutil.rmtree(self.path)
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self.path = None
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self.backend = None
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def _check_backend(self, conf):
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with contextlib.closing(backends.fetch(conf)) as be:
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self.assertIsInstance(be, impl_dir.DirBackend)
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def test_dir_backend_invalid_cache_size(self):
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for invalid_size in [-1024, 0, -1]:
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conf = {
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'path': self.path,
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'max_cache_size': invalid_size,
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}
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self.assertRaises(ValueError, impl_dir.DirBackend, conf)
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def test_dir_backend_cache_overfill(self):
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if self.max_cache_size is not None:
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# Ensure cache never goes past the desired max size...
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books_ids_made = []
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with contextlib.closing(self._get_connection()) as conn:
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for i in range(0, int(1.5 * self.max_cache_size)):
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lb_name = 'book-%s' % (i)
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lb_id = uuidutils.generate_uuid()
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lb = models.LogBook(name=lb_name, uuid=lb_id)
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self.assertRaises(exc.NotFound, conn.get_logbook, lb_id)
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conn.save_logbook(lb)
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books_ids_made.append(lb_id)
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self.assertLessEqual(self.backend.file_cache.currsize,
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self.max_cache_size)
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# Also ensure that we can still read all created books...
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with contextlib.closing(self._get_connection()) as conn:
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for lb_id in books_ids_made:
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lb = conn.get_logbook(lb_id)
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self.assertIsNotNone(lb)
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def test_dir_backend_entry_point(self):
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self._check_backend(dict(connection='dir:', path=self.path))
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def test_dir_backend_name(self):
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self._check_backend(dict(connection='dir', # no colon
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path=self.path))
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def test_file_backend_entry_point(self):
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self._check_backend(dict(connection='file:', path=self.path))
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