103 lines
3.6 KiB
Python
103 lines
3.6 KiB
Python
# Copyright (c) 2013 Hewlett-Packard Development Company, L.P.
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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
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# 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 json
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import os
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import fixtures
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import testtools
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from testtools import matchers
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from os_collect_config import cache
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class DummyConf(object):
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def __init__(self, cachedir):
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class CONFobj(object):
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def __init__(self, cachedir):
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self.cachedir = cachedir
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self.CONF = CONFobj(cachedir)
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class TestCache(testtools.TestCase):
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def setUp(self):
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super(TestCache, self).setUp()
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cache_root = self.useFixture(fixtures.TempDir())
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self.cache_dir = os.path.join(cache_root.path, 'cache')
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self.useFixture(fixtures.MonkeyPatch('os_collect_config.cache.cfg',
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DummyConf(self.cache_dir)))
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def tearDown(self):
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super(TestCache, self).tearDown()
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def test_cache(self):
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# Never seen, so changed is expected.
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(changed, path) = cache.store('foo', {'a': 1})
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self.assertTrue(changed)
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self.assertTrue(os.path.exists(self.cache_dir))
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self.assertTrue(os.path.exists(path))
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orig_path = '%s.orig' % path
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self.assertTrue(os.path.exists(orig_path))
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last_path = '%s.last' % path
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self.assertFalse(os.path.exists(last_path))
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# .orig exists now but not .last so this will shortcut to changed
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(changed, path) = cache.store('foo', {'a': 2})
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self.assertTrue(changed)
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orig_path = '%s.orig' % path
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with open(path) as now:
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with open(orig_path) as then:
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self.assertNotEqual(now.read(), then.read())
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# Saves the current copy as .last
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cache.commit('foo')
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last_path = '%s.last' % path
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self.assertTrue(os.path.exists(last_path))
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# We committed this already, so we should have no changes
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(changed, path) = cache.store('foo', {'a': 2})
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self.assertFalse(changed)
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cache.commit('foo')
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# Fully exercising the line-by-line matching now that a .last exists
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(changed, path) = cache.store('foo', {'a': 3})
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self.assertTrue(changed)
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self.assertTrue(os.path.exists(path))
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# And the meta list
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list_path = cache.store_meta_list('foo_list', ['foo'])
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self.assertTrue(os.path.exists(list_path))
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with open(list_path) as list_file:
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list_list = json.loads(list_file.read())
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self.assertThat(list_list, matchers.IsInstance(list))
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self.assertIn(path, list_list)
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def test_cache_ignores_json_inequality(self):
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content1 = u'{"a": "value-a", "b": "value-b"}'
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content2 = u'{"b": "value-b", "a": "value-a"}'
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value1 = json.loads(content1)
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value2 = json.loads(content2)
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self.assertEqual(value1, value2)
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(changed, path) = cache.store('content', value1)
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self.assertTrue(changed)
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cache.commit('content')
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(changed, path) = cache.store('content', value1)
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self.assertFalse(changed)
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(changed, path) = cache.store('content', value2)
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self.assertFalse(changed)
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def test_commit_no_cache(self):
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self.assertIsNone(cache.commit('neversaved'))
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