¡@
OpenStack Study: test_cache_middleware.py**** CubicPower OpenStack Study ****
# Copyright 2011 OpenStack Foundation # All Rights Reserved. # # 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. """ Tests a Glance API server which uses the caching middleware that uses the default SQLite cache driver. We use the filesystem store, but that is really not relevant, as the image cache is transparent to the backend store. """ import hashlib import os import shutil import sys import time import httplib2 from six.moves import xrange from glance.openstack.common import jsonutils from glance.openstack.common import units from glance.tests import functional from glance.tests.utils import execute from glance.tests.utils import minimal_headers from glance.tests.utils import skip_if_disabled from glance.tests.utils import xattr_writes_supported from glance.tests.functional.store_utils import get_http_uri from glance.tests.functional.store_utils import setup_http FIVE_KB = 5 * units.Ki
**** CubicPower OpenStack Study **** class BaseCacheMiddlewareTest(object): @skip_if_disabled
**** CubicPower OpenStack Study **** def test_cache_middleware_transparent_v1(self): """ We test that putting the cache middleware into the application pipeline gives us transparent image caching """ self.cleanup() self.start_servers(**self.__dict__.copy()) # Add an image and verify a 200 OK is returned image_data = "*" * FIVE_KB headers = minimal_headers('Image1') path = "http://%s:%d/v1/images" % ("127.0.0.1", self.api_port) http = httplib2.Http() response, content = http.request(path, 'POST', headers=headers, body=image_data) self.assertEqual(response.status, 201) data = jsonutils.loads(content) self.assertEqual(data['image']['checksum'], hashlib.md5(image_data).hexdigest()) self.assertEqual(data['image']['size'], FIVE_KB) self.assertEqual(data['image']['name'], "Image1") self.assertEqual(data['image']['is_public'], True) image_id = data['image']['id'] # Verify image not in cache image_cached_path = os.path.join(self.api_server.image_cache_dir, image_id) self.assertFalse(os.path.exists(image_cached_path)) # Grab the image path = "http://%s:%d/v1/images/%s" % ("127.0.0.1", self.api_port, image_id) http = httplib2.Http() response, content = http.request(path, 'GET') self.assertEqual(response.status, 200) # Verify image now in cache image_cached_path = os.path.join(self.api_server.image_cache_dir, image_id) # You might wonder why the heck this is here... well, it's here # because it took me forever to figure out that the disk write # cache in Linux was causing random failures of the os.path.exists # assert directly below this. Basically, since the cache is writing # the image file to disk in a different process, the write buffers # don't flush the cache file during an os.rename() properly, resulting # in a false negative on the file existence check below. This little # loop pauses the execution of this process for no more than 1.5 # seconds. If after that time the cached image file still doesn't # appear on disk, something really is wrong, and the assert should # trigger... i = 0 while not os.path.exists(image_cached_path) and i < 30: time.sleep(0.05) i = i + 1 self.assertTrue(os.path.exists(image_cached_path)) # Now, we delete the image from the server and verify that # the image cache no longer contains the deleted image path = "http://%s:%d/v1/images/%s" % ("127.0.0.1", self.api_port, image_id) http = httplib2.Http() response, content = http.request(path, 'DELETE') self.assertEqual(response.status, 200) self.assertFalse(os.path.exists(image_cached_path)) self.stop_servers() @skip_if_disabled
**** CubicPower OpenStack Study **** def test_cache_middleware_transparent_v2(self): """Ensure the v2 API image transfer calls trigger caching""" self.cleanup() self.start_servers(**self.__dict__.copy()) # Add an image and verify success path = "http://%s:%d/v2/images" % ("0.0.0.0", self.api_port) http = httplib2.Http() headers = {'content-type': 'application/json'} image_entity = { 'name': 'Image1', 'visibility': 'public', 'container_format': 'bare', 'disk_format': 'raw', } response, content = http.request(path, 'POST', headers=headers, body=jsonutils.dumps(image_entity)) self.assertEqual(response.status, 201) data = jsonutils.loads(content) image_id = data['id'] path = "http://%s:%d/v2/images/%s/file" % ("0.0.0.0", self.api_port, image_id) headers = {'content-type': 'application/octet-stream'} image_data = "*" * FIVE_KB response, content = http.request(path, 'PUT', headers=headers, body=image_data) self.assertEqual(response.status, 204) # Verify image not in cache image_cached_path = os.path.join(self.api_server.image_cache_dir, image_id) self.assertFalse(os.path.exists(image_cached_path)) # Grab the image http = httplib2.Http() response, content = http.request(path, 'GET') self.assertEqual(response.status, 200) # Verify image now in cache image_cached_path = os.path.join(self.api_server.image_cache_dir, image_id) # Now, we delete the image from the server and verify that # the image cache no longer contains the deleted image path = "http://%s:%d/v2/images/%s" % ("0.0.0.0", self.api_port, image_id) http = httplib2.Http() response, content = http.request(path, 'DELETE') self.assertEqual(response.status, 204) self.assertFalse(os.path.exists(image_cached_path)) self.stop_servers() @skip_if_disabled
**** CubicPower OpenStack Study **** def test_cache_remote_image(self): """ We test that caching is no longer broken for remote images """ self.cleanup() self.start_servers(**self.__dict__.copy()) setup_http(self) # Add a remote image and verify a 201 Created is returned remote_uri = get_http_uri(self, '2') headers = {'X-Image-Meta-Name': 'Image2', 'X-Image-Meta-disk_format': 'raw', 'X-Image-Meta-container_format': 'ovf', 'X-Image-Meta-Is-Public': 'True', 'X-Image-Meta-Location': remote_uri} path = "http://%s:%d/v1/images" % ("127.0.0.1", self.api_port) http = httplib2.Http() response, content = http.request(path, 'POST', headers=headers) self.assertEqual(response.status, 201) data = jsonutils.loads(content) self.assertEqual(data['image']['size'], FIVE_KB) image_id = data['image']['id'] path = "http://%s:%d/v1/images/%s" % ("127.0.0.1", self.api_port, image_id) # Grab the image http = httplib2.Http() response, content = http.request(path, 'GET') self.assertEqual(response.status, 200) # Grab the image again to ensure it can be served out from # cache with the correct size http = httplib2.Http() response, content = http.request(path, 'GET') self.assertEqual(response.status, 200) self.assertEqual(int(response['content-length']), FIVE_KB) self.stop_servers() @skip_if_disabled
**** CubicPower OpenStack Study **** def test_cache_middleware_trans_v1_without_download_image_policy(self): """ Ensure the image v1 API image transfer applied 'download_image' policy enforcement. """ self.cleanup() self.start_servers(**self.__dict__.copy()) # Add an image and verify a 200 OK is returned image_data = "*" * FIVE_KB headers = minimal_headers('Image1') path = "http://%s:%d/v1/images" % ("127.0.0.1", self.api_port) http = httplib2.Http() response, content = http.request(path, 'POST', headers=headers, body=image_data) self.assertEqual(response.status, 201) data = jsonutils.loads(content) self.assertEqual(data['image']['checksum'], hashlib.md5(image_data).hexdigest()) self.assertEqual(data['image']['size'], FIVE_KB) self.assertEqual(data['image']['name'], "Image1") self.assertEqual(data['image']['is_public'], True) image_id = data['image']['id'] # Verify image not in cache image_cached_path = os.path.join(self.api_server.image_cache_dir, image_id) self.assertFalse(os.path.exists(image_cached_path)) rules = {"context_is_admin": "role:admin", "default": "", "download_image": "!"} self.set_policy_rules(rules) # Grab the image path = "http://%s:%d/v1/images/%s" % ("127.0.0.1", self.api_port, image_id) http = httplib2.Http() response, content = http.request(path, 'GET') self.assertEqual(response.status, 403) # Now, we delete the image from the server and verify that # the image cache no longer contains the deleted image path = "http://%s:%d/v1/images/%s" % ("127.0.0.1", self.api_port, image_id) http = httplib2.Http() response, content = http.request(path, 'DELETE') self.assertEqual(response.status, 200) self.assertFalse(os.path.exists(image_cached_path)) self.stop_servers() @skip_if_disabled
**** CubicPower OpenStack Study **** def test_cache_middleware_trans_v2_without_download_image_policy(self): """ Ensure the image v2 API image transfer applied 'download_image' policy enforcement. """ self.cleanup() self.start_servers(**self.__dict__.copy()) # Add an image and verify success path = "http://%s:%d/v2/images" % ("0.0.0.0", self.api_port) http = httplib2.Http() headers = {'content-type': 'application/json'} image_entity = { 'name': 'Image1', 'visibility': 'public', 'container_format': 'bare', 'disk_format': 'raw', } response, content = http.request(path, 'POST', headers=headers, body=jsonutils.dumps(image_entity)) self.assertEqual(response.status, 201) data = jsonutils.loads(content) image_id = data['id'] path = "http://%s:%d/v2/images/%s/file" % ("0.0.0.0", self.api_port, image_id) headers = {'content-type': 'application/octet-stream'} image_data = "*" * FIVE_KB response, content = http.request(path, 'PUT', headers=headers, body=image_data) self.assertEqual(response.status, 204) # Verify image not in cache image_cached_path = os.path.join(self.api_server.image_cache_dir, image_id) self.assertFalse(os.path.exists(image_cached_path)) rules = {"context_is_admin": "role:admin", "default": "", "download_image": "!"} self.set_policy_rules(rules) # Grab the image http = httplib2.Http() response, content = http.request(path, 'GET') self.assertEqual(response.status, 403) # Now, we delete the image from the server and verify that # the image cache no longer contains the deleted image path = "http://%s:%d/v2/images/%s" % ("0.0.0.0", self.api_port, image_id) http = httplib2.Http() response, content = http.request(path, 'DELETE') self.assertEqual(response.status, 204) self.assertFalse(os.path.exists(image_cached_path)) self.stop_servers()
**** CubicPower OpenStack Study **** class BaseCacheManageMiddlewareTest(object): """Base test class for testing cache management middleware"""
**** CubicPower OpenStack Study **** def verify_no_images(self): path = "http://%s:%d/v1/images" % ("127.0.0.1", self.api_port) http = httplib2.Http() response, content = http.request(path, 'GET') self.assertEqual(response.status, 200) data = jsonutils.loads(content) self.assertTrue('images' in data) self.assertEqual(0, len(data['images']))
**** CubicPower OpenStack Study **** def add_image(self, name): """ Adds an image and returns the newly-added image identifier """ image_data = "*" * FIVE_KB headers = minimal_headers('%s' % name) path = "http://%s:%d/v1/images" % ("127.0.0.1", self.api_port) http = httplib2.Http() response, content = http.request(path, 'POST', headers=headers, body=image_data) self.assertEqual(response.status, 201) data = jsonutils.loads(content) self.assertEqual(data['image']['checksum'], hashlib.md5(image_data).hexdigest()) self.assertEqual(data['image']['size'], FIVE_KB) self.assertEqual(data['image']['name'], name) self.assertEqual(data['image']['is_public'], True) return data['image']['id']
**** CubicPower OpenStack Study **** def verify_no_cached_images(self): """ Verify no images in the image cache """ path = "http://%s:%d/v1/cached_images" % ("127.0.0.1", self.api_port) http = httplib2.Http() response, content = http.request(path, 'GET') self.assertEqual(response.status, 200) data = jsonutils.loads(content) self.assertTrue('cached_images' in data) self.assertEqual(data['cached_images'], []) @skip_if_disabled
**** CubicPower OpenStack Study **** def test_user_not_authorized(self): self.cleanup() self.start_servers(**self.__dict__.copy()) self.verify_no_images() image_id1 = self.add_image("Image1") image_id2 = self.add_image("Image2") # Verify image does not yet show up in cache (we haven't "hit" # it yet using a GET /images/1 ... self.verify_no_cached_images() # Grab the image path = "http://%s:%d/v1/images/%s" % ("127.0.0.1", self.api_port, image_id1) http = httplib2.Http() response, content = http.request(path, 'GET') self.assertEqual(response.status, 200) # Verify image now in cache path = "http://%s:%d/v1/cached_images" % ("127.0.0.1", self.api_port) http = httplib2.Http() response, content = http.request(path, 'GET') self.assertEqual(response.status, 200) data = jsonutils.loads(content) self.assertTrue('cached_images' in data) cached_images = data['cached_images'] self.assertEqual(1, len(cached_images)) self.assertEqual(image_id1, cached_images[0]['image_id']) # Set policy to disallow access to cache management rules = {"manage_image_cache": '!'} self.set_policy_rules(rules) # Verify an unprivileged user cannot see cached images path = "http://%s:%d/v1/cached_images" % ("127.0.0.1", self.api_port) http = httplib2.Http() response, content = http.request(path, 'GET') self.assertEqual(response.status, 403) # Verify an unprivileged user cannot delete images from the cache path = "http://%s:%d/v1/cached_images/%s" % ("127.0.0.1", self.api_port, image_id1) http = httplib2.Http() response, content = http.request(path, 'DELETE') self.assertEqual(response.status, 403) # Verify an unprivileged user cannot delete all cached images path = "http://%s:%d/v1/cached_images" % ("127.0.0.1", self.api_port) http = httplib2.Http() response, content = http.request(path, 'DELETE') self.assertEqual(response.status, 403) # Verify an unprivileged user cannot queue an image path = "http://%s:%d/v1/queued_images/%s" % ("127.0.0.1", self.api_port, image_id2) http = httplib2.Http() response, content = http.request(path, 'PUT') self.assertEqual(response.status, 403) self.stop_servers() @skip_if_disabled
**** CubicPower OpenStack Study **** def test_cache_manage_get_cached_images(self): """ Tests that cached images are queryable """ self.cleanup() self.start_servers(**self.__dict__.copy()) self.verify_no_images() image_id = self.add_image("Image1") # Verify image does not yet show up in cache (we haven't "hit" # it yet using a GET /images/1 ... self.verify_no_cached_images() # Grab the image path = "http://%s:%d/v1/images/%s" % ("127.0.0.1", self.api_port, image_id) http = httplib2.Http() response, content = http.request(path, 'GET') self.assertEqual(response.status, 200) # Verify image now in cache path = "http://%s:%d/v1/cached_images" % ("127.0.0.1", self.api_port) http = httplib2.Http() response, content = http.request(path, 'GET') self.assertEqual(response.status, 200) data = jsonutils.loads(content) self.assertTrue('cached_images' in data) # Verify the last_modified/last_accessed values are valid floats for cached_image in data['cached_images']: for time_key in ('last_modified', 'last_accessed'): time_val = cached_image[time_key] try: float(time_val) except ValueError: self.fail('%s time %s for cached image %s not a valid ' 'float' % (time_key, time_val, cached_image['image_id'])) cached_images = data['cached_images'] self.assertEqual(1, len(cached_images)) self.assertEqual(image_id, cached_images[0]['image_id']) self.assertEqual(0, cached_images[0]['hits']) # Hit the image path = "http://%s:%d/v1/images/%s" % ("127.0.0.1", self.api_port, image_id) http = httplib2.Http() response, content = http.request(path, 'GET') self.assertEqual(response.status, 200) # Verify image hits increased in output of manage GET path = "http://%s:%d/v1/cached_images" % ("127.0.0.1", self.api_port) http = httplib2.Http() response, content = http.request(path, 'GET') self.assertEqual(response.status, 200) data = jsonutils.loads(content) self.assertTrue('cached_images' in data) cached_images = data['cached_images'] self.assertEqual(1, len(cached_images)) self.assertEqual(image_id, cached_images[0]['image_id']) self.assertEqual(1, cached_images[0]['hits']) self.stop_servers() @skip_if_disabled
**** CubicPower OpenStack Study **** def test_cache_manage_delete_cached_images(self): """ Tests that cached images may be deleted """ self.cleanup() self.start_servers(**self.__dict__.copy()) self.verify_no_images() ids = {} # Add a bunch of images... for x in xrange(4): ids[x] = self.add_image("Image%s" % str(x)) # Verify no images in cached_images because no image has been hit # yet using a GET /images/ self.verify_no_cached_images() # Grab the images, essentially caching them... for x in xrange(4): path = "http://%s:%d/v1/images/%s" % ("127.0.0.1", self.api_port, ids[x]) http = httplib2.Http() response, content = http.request(path, 'GET') self.assertEqual(response.status, 200, "Failed to find image %s" % ids[x]) # Verify images now in cache path = "http://%s:%d/v1/cached_images" % ("127.0.0.1", self.api_port) http = httplib2.Http() response, content = http.request(path, 'GET') self.assertEqual(response.status, 200) data = jsonutils.loads(content) self.assertTrue('cached_images' in data) cached_images = data['cached_images'] self.assertEqual(4, len(cached_images)) for x in xrange(4, 0): # Cached images returned last modified order self.assertEqual(ids[x], cached_images[x]['image_id']) self.assertEqual(0, cached_images[x]['hits']) # Delete third image of the cached images and verify no longer in cache path = "http://%s:%d/v1/cached_images/%s" % ("127.0.0.1", self.api_port, ids[2]) http = httplib2.Http() response, content = http.request(path, 'DELETE') self.assertEqual(response.status, 200) path = "http://%s:%d/v1/cached_images" % ("127.0.0.1", self.api_port) http = httplib2.Http() response, content = http.request(path, 'GET') self.assertEqual(response.status, 200) data = jsonutils.loads(content) self.assertTrue('cached_images' in data) cached_images = data['cached_images'] self.assertEqual(3, len(cached_images)) self.assertTrue(ids[2] not in [x['image_id'] for x in cached_images]) # Delete all cached images and verify nothing in cache path = "http://%s:%d/v1/cached_images" % ("127.0.0.1", self.api_port) http = httplib2.Http() response, content = http.request(path, 'DELETE') self.assertEqual(response.status, 200) path = "http://%s:%d/v1/cached_images" % ("127.0.0.1", self.api_port) http = httplib2.Http() response, content = http.request(path, 'GET') self.assertEqual(response.status, 200) data = jsonutils.loads(content) self.assertTrue('cached_images' in data) cached_images = data['cached_images'] self.assertEqual(0, len(cached_images)) self.stop_servers() @skip_if_disabled
**** CubicPower OpenStack Study **** def test_cache_manage_delete_queued_images(self): """ Tests that all queued images may be deleted at once """ self.cleanup() self.start_servers(**self.__dict__.copy()) self.verify_no_images() ids = {} NUM_IMAGES = 4 # Add and then queue some images for x in xrange(NUM_IMAGES): ids[x] = self.add_image("Image%s" % str(x)) path = "http://%s:%d/v1/queued_images/%s" % ("127.0.0.1", self.api_port, ids[x]) http = httplib2.Http() response, content = http.request(path, 'PUT') self.assertEqual(response.status, 200) # Delete all queued images path = "http://%s:%d/v1/queued_images" % ("127.0.0.1", self.api_port) http = httplib2.Http() response, content = http.request(path, 'DELETE') self.assertEqual(response.status, 200) data = jsonutils.loads(content) num_deleted = data['num_deleted'] self.assertEqual(NUM_IMAGES, num_deleted) # Verify a second delete now returns num_deleted=0 path = "http://%s:%d/v1/queued_images" % ("127.0.0.1", self.api_port) http = httplib2.Http() response, content = http.request(path, 'DELETE') self.assertEqual(response.status, 200) data = jsonutils.loads(content) num_deleted = data['num_deleted'] self.assertEqual(0, num_deleted) self.stop_servers() @skip_if_disabled
**** CubicPower OpenStack Study **** def test_queue_and_prefetch(self): """ Tests that images may be queued and prefetched """ self.cleanup() self.start_servers(**self.__dict__.copy()) cache_config_filepath = os.path.join(self.test_dir, 'etc', 'glance-cache.conf') cache_file_options = { 'image_cache_dir': self.api_server.image_cache_dir, 'image_cache_driver': self.image_cache_driver, 'registry_port': self.registry_server.bind_port, 'log_file': os.path.join(self.test_dir, 'cache.log'), 'metadata_encryption_key': "012345678901234567890123456789ab" } with open(cache_config_filepath, 'w') as cache_file: cache_file.write("""[DEFAULT] debug = True verbose = True image_cache_dir = %(image_cache_dir)s image_cache_driver = %(image_cache_driver)s registry_host = 127.0.0.1 registry_port = %(registry_port)s metadata_encryption_key = %(metadata_encryption_key)s log_file = %(log_file)s """ % cache_file_options) self.verify_no_images() ids = {} # Add a bunch of images... for x in xrange(4): ids[x] = self.add_image("Image%s" % str(x)) # Queue the first image, verify no images still in cache after queueing # then run the prefetcher and verify that the image is then in the # cache path = "http://%s:%d/v1/queued_images/%s" % ("127.0.0.1", self.api_port, ids[0]) http = httplib2.Http() response, content = http.request(path, 'PUT') self.assertEqual(response.status, 200) self.verify_no_cached_images() cmd = ("%s -m glance.cmd.cache_prefetcher --config-file %s" % (sys.executable, cache_config_filepath)) exitcode, out, err = execute(cmd) self.assertEqual(0, exitcode) self.assertEqual('', out.strip(), out) # Verify first image now in cache path = "http://%s:%d/v1/cached_images" % ("127.0.0.1", self.api_port) http = httplib2.Http() response, content = http.request(path, 'GET') self.assertEqual(response.status, 200) data = jsonutils.loads(content) self.assertTrue('cached_images' in data) cached_images = data['cached_images'] self.assertEqual(1, len(cached_images)) self.assertTrue(ids[0] in [r['image_id'] for r in data['cached_images']]) self.stop_servers()
**** CubicPower OpenStack Study **** class TestImageCacheXattr(functional.FunctionalTest,
BaseCacheMiddlewareTest): """Functional tests that exercise the image cache using the xattr driver"""
**** CubicPower OpenStack Study **** def setUp(self): """ Test to see if the pre-requisites for the image cache are working (python-xattr installed and xattr support on the filesystem) """ if getattr(self, 'disabled', False): return if not getattr(self, 'inited', False): try: import xattr # noqa except ImportError: self.inited = True self.disabled = True self.disabled_message = ("python-xattr not installed.") return self.inited = True self.disabled = False self.image_cache_driver = "xattr" super(TestImageCacheXattr, self).setUp() self.api_server.deployment_flavor = "caching" if not xattr_writes_supported(self.test_dir): self.inited = True self.disabled = True self.disabled_message = ("filesystem does not support xattr") return
**** CubicPower OpenStack Study **** def tearDown(self): super(TestImageCacheXattr, self).tearDown() if os.path.exists(self.api_server.image_cache_dir): shutil.rmtree(self.api_server.image_cache_dir)
**** CubicPower OpenStack Study **** class TestImageCacheManageXattr(functional.FunctionalTest,
BaseCacheManageMiddlewareTest): """ Functional tests that exercise the image cache management with the Xattr cache driver """
**** CubicPower OpenStack Study **** def setUp(self): """ Test to see if the pre-requisites for the image cache are working (python-xattr installed and xattr support on the filesystem) """ if getattr(self, 'disabled', False): return if not getattr(self, 'inited', False): try: import xattr # noqa except ImportError: self.inited = True self.disabled = True self.disabled_message = ("python-xattr not installed.") return self.inited = True self.disabled = False self.image_cache_driver = "xattr" super(TestImageCacheManageXattr, self).setUp() self.api_server.deployment_flavor = "cachemanagement" if not xattr_writes_supported(self.test_dir): self.inited = True self.disabled = True self.disabled_message = ("filesystem does not support xattr") return
**** CubicPower OpenStack Study **** def tearDown(self): super(TestImageCacheManageXattr, self).tearDown() if os.path.exists(self.api_server.image_cache_dir): shutil.rmtree(self.api_server.image_cache_dir)
**** CubicPower OpenStack Study **** class TestImageCacheSqlite(functional.FunctionalTest,
BaseCacheMiddlewareTest): """ Functional tests that exercise the image cache using the SQLite driver """
**** CubicPower OpenStack Study **** def setUp(self): """ Test to see if the pre-requisites for the image cache are working (python-xattr installed and xattr support on the filesystem) """ if getattr(self, 'disabled', False): return if not getattr(self, 'inited', False): try: import sqlite3 # noqa except ImportError: self.inited = True self.disabled = True self.disabled_message = ("python-sqlite3 not installed.") return self.inited = True self.disabled = False super(TestImageCacheSqlite, self).setUp() self.api_server.deployment_flavor = "caching"
**** CubicPower OpenStack Study **** def tearDown(self): super(TestImageCacheSqlite, self).tearDown() if os.path.exists(self.api_server.image_cache_dir): shutil.rmtree(self.api_server.image_cache_dir)
**** CubicPower OpenStack Study **** class TestImageCacheManageSqlite(functional.FunctionalTest,
BaseCacheManageMiddlewareTest): """ Functional tests that exercise the image cache management using the SQLite driver """
**** CubicPower OpenStack Study **** def setUp(self): """ Test to see if the pre-requisites for the image cache are working (python-xattr installed and xattr support on the filesystem) """ if getattr(self, 'disabled', False): return if not getattr(self, 'inited', False): try: import sqlite3 # noqa except ImportError: self.inited = True self.disabled = True self.disabled_message = ("python-sqlite3 not installed.") return self.inited = True self.disabled = False self.image_cache_driver = "sqlite" super(TestImageCacheManageSqlite, self).setUp() self.api_server.deployment_flavor = "cachemanagement"
**** CubicPower OpenStack Study **** def tearDown(self): super(TestImageCacheManageSqlite, self).tearDown() if os.path.exists(self.api_server.image_cache_dir): shutil.rmtree(self.api_server.image_cache_dir)
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