grafyaml/tests/test_cache.py
Paul Belanger af5f511cf5 Use null backend when cache is disabled
Rather then hacking up our cache object while using a file backend, we
can simply ask dogpile.cache to use a null backend. This way we keep
things simple.

Change-Id: Ibf34c4e26652629c3ee589fdcdd65188792aafef
Signed-off-by: Paul Belanger <pabelanger@redhat.com>
2015-10-22 20:12:55 -04:00

81 lines
3.2 KiB
Python

# Copyright 2015 Red Hat, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from grafana_dashboards import cache
from tests.base import TestCase
class TestCaseCache(TestCase):
dashboard = {
'hello-world': '2095312189753de6ad47dfe20cbe97ec',
}
def test_cache_has_changed(self):
storage = cache.Cache(self.config.get('cache', 'cachedir'))
res = storage.has_changed(
'hello-world', self.dashboard['hello-world'])
self.assertTrue(res)
storage.set('hello-world', self.dashboard['hello-world'])
res = storage.has_changed(
'hello-world', self.dashboard['hello-world'])
self.assertFalse(res)
def test_cache_disabled_has_changed(self):
storage = cache.Cache(self.config.get('cache', 'cachedir'), False)
res = storage.has_changed(
'hello-world', self.dashboard['hello-world'])
self.assertTrue(res)
# Set a second time and confirm cache has_changed is True.
storage.set('hello-world', self.dashboard['hello-world'])
res = storage.has_changed(
'hello-world', self.dashboard['hello-world'])
self.assertTrue(res)
def test_cache_get_empty(self):
storage = cache.Cache(self.config.get('cache', 'cachedir'))
self.assertEqual(storage.get('empty'), None)
def test_cache_disabled_get_empty(self):
storage = cache.Cache(self.config.get('cache', 'cachedir'), False)
self.assertEqual(storage.get('empty'), None)
def test_cache_set_multiple(self):
storage = cache.Cache(self.config.get('cache', 'cachedir'))
storage.set('hello-world', self.dashboard['hello-world'])
self.assertEqual(
storage.get('hello-world'), self.dashboard['hello-world'])
dashboard = {
'foobar': '14758f1afd44c09b7992073ccf00b43d'
}
dashboard['hello-world'] = self.dashboard['hello-world']
storage.set('foobar', dashboard['foobar'])
self.assertEqual(storage.get('foobar'), dashboard['foobar'])
# Make sure hello-world is still valid.
self.assertEqual(
storage.get('hello-world'), self.dashboard['hello-world'])
def test_cache_set_single(self):
storage = cache.Cache(self.config.get('cache', 'cachedir'))
storage.set('hello-world', self.dashboard['hello-world'])
self.assertEqual(
storage.get('hello-world'), self.dashboard['hello-world'])
def test_cache_disabled_set_single(self):
storage = cache.Cache(self.config.get('cache', 'cachedir'), False)
storage.set('hello-world', self.dashboard['hello-world'])
# Make sure cache is empty
self.assertEqual(storage.get('hello-world'), None)