openstack/swift
Code Issues Proposed changes
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c9f824637845f342b6996058e0fea8338bd1305d
swift/test/functional/__init__.py
Alistair Coles c9f8246378 Make in process functional tests use sample proxy-server.conf 
This patch was first motivated by noticing that the proxy
server pipeline used for in process functional tests was
out of date with respect to the pipeline in
/etc/proxy-server.conf.sample. Rather than cut and paste
the current pipeline into the in process setup, it seems
like a better idea would be to have the in process tests
always use the sample config.

A further benefit is that in process functional tests will
pick up changes to the sample config introduced by patches -
previously test/functional/__init__.py would need to be
manually modified to run in process functional tests
on new middleware for example.

Note: because the pipeline is now loaded using entry points,
'python setup.py [develop|install]' will now be needed
before running the tests.

Obvious next steps would be to do the same for the backend
servers, and to allow alternative config files and dir's
to be specified, but this patch is the first step.

Also drive-by fixes some typos in proxy-server.conf.sample

Change-Id: If442bd7c2b1721ec92839c4490924ba33e1545d8
2014-11-14 10:44:41 +00:00

750 lines
27 KiB
Python
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# Copyright (c) 2014 OpenStack Foundation
#
# 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.
import mock
import os
import sys
import pickle
import socket
import locale
import eventlet
import eventlet.debug
import functools
import random
from time import time, sleep
from httplib import HTTPException
from urlparse import urlparse
from nose import SkipTest
from contextlib import closing
from gzip import GzipFile
from shutil import rmtree
from tempfile import mkdtemp
from swift.common.memcached import MemcacheConnectionError
from swift.common.middleware.memcache import MemcacheMiddleware
from test import get_config
from test.functional.swift_test_client import Account, Connection, \
ResponseError
# This has the side effect of mocking out the xattr module so that unit tests
# (and in this case, when in-process functional tests are called for) can run
# on file systems that don't support extended attributes.
from test.unit import debug_logger, FakeMemcache
from swift.common import constraints, utils, ring, storage_policy
from swift.common.ring import Ring
from swift.common.wsgi import monkey_patch_mimetools, loadapp
from swift.common.utils import config_true_value
from swift.account import server as account_server
from swift.container import server as container_server
from swift.obj import server as object_server, mem_server as mem_object_server
import swift.proxy.controllers.obj
# In order to get the proper blocking behavior of sockets without using
# threads, where we can set an arbitrary timeout for some piece of code under
# test, we use eventlet with the standard socket library patched. We have to
# perform this setup at module import time, since all the socket module
# bindings in the swiftclient code will have been made by the time nose
# invokes the package or class setup methods.
eventlet.hubs.use_hub(utils.get_hub())
eventlet.patcher.monkey_patch(all=False, socket=True)
eventlet.debug.hub_exceptions(False)
from swiftclient import get_auth, http_connection
has_insecure = False
try:
from swiftclient import __version__ as client_version
# Prevent a ValueError in StrictVersion with '2.0.3.68.ga99c2ff'
client_version = '.'.join(client_version.split('.')[:3])
except ImportError:
# Pre-PBR we had version, not __version__. Anyhow...
client_version = '1.2'
from distutils.version import StrictVersion
if StrictVersion(client_version) >= StrictVersion('2.0'):
has_insecure = True
config = {}
web_front_end = None
normalized_urls = None
# If no config was read, we will fall back to old school env vars
swift_test_auth_version = None
swift_test_auth = os.environ.get('SWIFT_TEST_AUTH')
swift_test_user = [os.environ.get('SWIFT_TEST_USER'), None, None, '']
swift_test_key = [os.environ.get('SWIFT_TEST_KEY'), None, None, '']
swift_test_tenant = ['', '', '', '']
swift_test_perm = ['', '', '', '']
swift_test_domain = ['', '', '', '']
swift_test_user_id = ['', '', '', '']
swift_test_tenant_id = ['', '', '', '']
skip, skip2, skip3 = False, False, False
orig_collate = ''
insecure = False
orig_hash_path_suff_pref = ('', '')
orig_swift_conf_name = None
in_process = False
_testdir = _test_servers = _test_sockets = _test_coros = None
class FakeMemcacheMiddleware(MemcacheMiddleware):
"""
Caching middleware that fakes out caching in swift if memcached
does not appear to be running.
"""
def __init__(self, app, conf):
super(FakeMemcacheMiddleware, self).__init__(app, conf)
try:
self.memcache.incr('test_for_memcached_running')
except MemcacheConnectionError as e:
print >>sys.stderr, 'Using FakeMemcache: %s' % e.message
self.memcache = FakeMemcache()
# swift.conf contents for in-process functional test runs
functests_swift_conf = '''
[swift-hash]
swift_hash_path_suffix = inprocfunctests
swift_hash_path_prefix = inprocfunctests
[swift-constraints]
max_file_size = %d
''' % ((8 * 1024 * 1024) + 2) # 8 MB + 2
def in_process_setup(the_object_server=object_server):
print >>sys.stderr, 'IN-PROCESS SERVERS IN USE FOR FUNCTIONAL TESTS'
print >>sys.stderr, 'Using object_server: %s' % the_object_server.__name__
_dir = os.path.normpath(os.path.join(os.path.abspath(__file__),
os.pardir, os.pardir, os.pardir))
proxy_conf = os.path.join(_dir, 'etc', 'proxy-server.conf-sample')
if os.path.exists(proxy_conf):
print >>sys.stderr, 'Using proxy-server config from %s' % proxy_conf
else:
print >>sys.stderr, 'Failed to find conf file %s' % proxy_conf
return
monkey_patch_mimetools()
global _testdir
_testdir = os.path.join(mkdtemp(), 'tmp_functional')
utils.mkdirs(_testdir)
rmtree(_testdir)
utils.mkdirs(os.path.join(_testdir, 'sda1'))
utils.mkdirs(os.path.join(_testdir, 'sda1', 'tmp'))
utils.mkdirs(os.path.join(_testdir, 'sdb1'))
utils.mkdirs(os.path.join(_testdir, 'sdb1', 'tmp'))
swift_conf = os.path.join(_testdir, "swift.conf")
with open(swift_conf, "w") as scfp:
scfp.write(functests_swift_conf)
global orig_swift_conf_name
orig_swift_conf_name = utils.SWIFT_CONF_FILE
utils.SWIFT_CONF_FILE = swift_conf
constraints.reload_constraints()
storage_policy.SWIFT_CONF_FILE = swift_conf
storage_policy.reload_storage_policies()
global config
if constraints.SWIFT_CONSTRAINTS_LOADED:
# Use the swift constraints that are loaded for the test framework
# configuration
_c = dict((k, str(v))
for k, v in constraints.EFFECTIVE_CONSTRAINTS.items())
config.update(_c)
else:
# In-process swift constraints were not loaded, somethings wrong
raise SkipTest
global orig_hash_path_suff_pref
orig_hash_path_suff_pref = utils.HASH_PATH_PREFIX, utils.HASH_PATH_SUFFIX
utils.validate_hash_conf()
# We create the proxy server listening socket to get its port number so
# that we can add it as the "auth_port" value for the functional test
# clients.
prolis = eventlet.listen(('localhost', 0))
# The following set of configuration values is used both for the
# functional test frame work and for the various proxy, account, container
# and object servers.
config.update({
# Values needed by the various in-process swift servers
'devices': _testdir,
'swift_dir': _testdir,
'mount_check': 'false',
'client_timeout': '4',
'allow_account_management': 'true',
'account_autocreate': 'true',
'allow_versions': 'True',
# Below are values used by the functional test framework, as well as
# by the various in-process swift servers
'auth_host': '127.0.0.1',
'auth_port': str(prolis.getsockname()[1]),
'auth_ssl': 'no',
'auth_prefix': '/auth/',
# Primary functional test account (needs admin access to the
# account)
'account': 'test',
'username': 'tester',
'password': 'testing',
# User on a second account (needs admin access to the account)
'account2': 'test2',
'username2': 'tester2',
'password2': 'testing2',
# User on same account as first, but without admin access
'username3': 'tester3',
'password3': 'testing3',
# For tempauth middleware
'user_admin_admin': 'admin .admin .reseller_admin',
'user_test_tester': 'testing .admin',
'user_test2_tester2': 'testing2 .admin',
'user_test_tester3': 'testing3'
})
acc1lis = eventlet.listen(('localhost', 0))
acc2lis = eventlet.listen(('localhost', 0))
con1lis = eventlet.listen(('localhost', 0))
con2lis = eventlet.listen(('localhost', 0))
obj1lis = eventlet.listen(('localhost', 0))
obj2lis = eventlet.listen(('localhost', 0))
global _test_sockets
_test_sockets = \
(prolis, acc1lis, acc2lis, con1lis, con2lis, obj1lis, obj2lis)
account_ring_path = os.path.join(_testdir, 'account.ring.gz')
with closing(GzipFile(account_ring_path, 'wb')) as f:
pickle.dump(ring.RingData([[0, 1, 0, 1], [1, 0, 1, 0]],
[{'id': 0, 'zone': 0, 'device': 'sda1', 'ip': '127.0.0.1',
'port': acc1lis.getsockname()[1]},
{'id': 1, 'zone': 1, 'device': 'sdb1', 'ip': '127.0.0.1',
'port': acc2lis.getsockname()[1]}], 30),
f)
container_ring_path = os.path.join(_testdir, 'container.ring.gz')
with closing(GzipFile(container_ring_path, 'wb')) as f:
pickle.dump(ring.RingData([[0, 1, 0, 1], [1, 0, 1, 0]],
[{'id': 0, 'zone': 0, 'device': 'sda1', 'ip': '127.0.0.1',
'port': con1lis.getsockname()[1]},
{'id': 1, 'zone': 1, 'device': 'sdb1', 'ip': '127.0.0.1',
'port': con2lis.getsockname()[1]}], 30),
f)
object_ring_path = os.path.join(_testdir, 'object.ring.gz')
with closing(GzipFile(object_ring_path, 'wb')) as f:
pickle.dump(ring.RingData([[0, 1, 0, 1], [1, 0, 1, 0]],
[{'id': 0, 'zone': 0, 'device': 'sda1', 'ip': '127.0.0.1',
'port': obj1lis.getsockname()[1]},
{'id': 1, 'zone': 1, 'device': 'sdb1', 'ip': '127.0.0.1',
'port': obj2lis.getsockname()[1]}], 30),
f)
eventlet.wsgi.HttpProtocol.default_request_version = "HTTP/1.0"
# Turn off logging requests by the underlying WSGI software.
eventlet.wsgi.HttpProtocol.log_request = lambda *a: None
logger = utils.get_logger(config, 'wsgi-server', log_route='wsgi')
# Redirect logging other messages by the underlying WSGI software.
eventlet.wsgi.HttpProtocol.log_message = \
lambda s, f, *a: logger.error('ERROR WSGI: ' + f % a)
# Default to only 4 seconds for in-process functional test runs
eventlet.wsgi.WRITE_TIMEOUT = 4
acc1srv = account_server.AccountController(
config, logger=debug_logger('acct1'))
acc2srv = account_server.AccountController(
config, logger=debug_logger('acct2'))
con1srv = container_server.ContainerController(
config, logger=debug_logger('cont1'))
con2srv = container_server.ContainerController(
config, logger=debug_logger('cont2'))
obj1srv = the_object_server.ObjectController(
config, logger=debug_logger('obj1'))
obj2srv = the_object_server.ObjectController(
config, logger=debug_logger('obj2'))
logger = debug_logger('proxy')
def get_logger(name, *args, **kwargs):
return logger
with mock.patch('swift.common.utils.get_logger', get_logger):
with mock.patch('swift.common.middleware.memcache.MemcacheMiddleware',
FakeMemcacheMiddleware):
app = loadapp(proxy_conf, global_conf=config)
nl = utils.NullLogger()
prospa = eventlet.spawn(eventlet.wsgi.server, prolis, app, nl)
acc1spa = eventlet.spawn(eventlet.wsgi.server, acc1lis, acc1srv, nl)
acc2spa = eventlet.spawn(eventlet.wsgi.server, acc2lis, acc2srv, nl)
con1spa = eventlet.spawn(eventlet.wsgi.server, con1lis, con1srv, nl)
con2spa = eventlet.spawn(eventlet.wsgi.server, con2lis, con2srv, nl)
obj1spa = eventlet.spawn(eventlet.wsgi.server, obj1lis, obj1srv, nl)
obj2spa = eventlet.spawn(eventlet.wsgi.server, obj2lis, obj2srv, nl)
global _test_coros
_test_coros = \
(prospa, acc1spa, acc2spa, con1spa, con2spa, obj1spa, obj2spa)
# Create accounts "test" and "test2"
def create_account(act):
ts = utils.normalize_timestamp(time())
account_ring = Ring(_testdir, ring_name='account')
partition, nodes = account_ring.get_nodes(act)
for node in nodes:
# Note: we are just using the http_connect method in the object
# controller here to talk to the account server nodes.
conn = swift.proxy.controllers.obj.http_connect(
node['ip'], node['port'], node['device'], partition, 'PUT',
'/' + act, {'X-Timestamp': ts, 'x-trans-id': act})
resp = conn.getresponse()
assert(resp.status == 201)
create_account('AUTH_test')
create_account('AUTH_test2')
cluster_info = {}
def get_cluster_info():
# The fallback constraints used for testing will come from the current
# effective constraints.
eff_constraints = dict(constraints.EFFECTIVE_CONSTRAINTS)
# We'll update those constraints based on what the /info API provides, if
# anything.
global cluster_info
try:
conn = Connection(config)
conn.authenticate()
cluster_info.update(conn.cluster_info())
except (ResponseError, socket.error):
# Failed to get cluster_information via /info API, so fall back on
# test.conf data
pass
else:
try:
eff_constraints.update(cluster_info['swift'])
except KeyError:
# Most likely the swift cluster has "expose_info = false" set
# in its proxy-server.conf file, so we'll just do the best we
# can.
print >>sys.stderr, "** Swift Cluster not exposing /info **"
# Finally, we'll allow any constraint present in the swift-constraints
# section of test.conf to override everything. Note that only those
# constraints defined in the constraints module are converted to integers.
test_constraints = get_config('swift-constraints')
for k in constraints.DEFAULT_CONSTRAINTS:
try:
test_constraints[k] = int(test_constraints[k])
except KeyError:
pass
except ValueError:
print >>sys.stderr, "Invalid constraint value: %s = %s" % (
k, test_constraints[k])
eff_constraints.update(test_constraints)
# Just make it look like these constraints were loaded from a /info call,
# even if the /info call failed, or when they are overridden by values
# from the swift-constraints section of test.conf
cluster_info['swift'] = eff_constraints
def setup_package():
in_process_env = os.environ.get('SWIFT_TEST_IN_PROCESS')
if in_process_env is not None:
use_in_process = utils.config_true_value(in_process_env)
else:
use_in_process = None
global in_process
if use_in_process:
# Explicitly set to True, so barrel on ahead with in-process
# functional test setup.
in_process = True
# NOTE: No attempt is made to a read local test.conf file.
else:
if use_in_process is None:
# Not explicitly set, default to using in-process functional tests
# if the test.conf file is not found, or does not provide a usable
# configuration.
config.update(get_config('func_test'))
if config:
in_process = False
else:
in_process = True
else:
# Explicitly set to False, do not attempt to use in-process
# functional tests, be sure we attempt to read from local
# test.conf file.
in_process = False
config.update(get_config('func_test'))
if in_process:
in_mem_obj_env = os.environ.get('SWIFT_TEST_IN_MEMORY_OBJ')
in_mem_obj = utils.config_true_value(in_mem_obj_env)
in_process_setup(the_object_server=(
mem_object_server if in_mem_obj else object_server))
global web_front_end
web_front_end = config.get('web_front_end', 'integral')
global normalized_urls
normalized_urls = config.get('normalized_urls', False)
global orig_collate
orig_collate = locale.setlocale(locale.LC_COLLATE)
locale.setlocale(locale.LC_COLLATE, config.get('collate', 'C'))
global insecure
insecure = config_true_value(config.get('insecure', False))
global swift_test_auth_version
global swift_test_auth
global swift_test_user
global swift_test_key
global swift_test_tenant
global swift_test_perm
global swift_test_domain
if config:
swift_test_auth_version = str(config.get('auth_version', '1'))
swift_test_auth = 'http'
if config_true_value(config.get('auth_ssl', 'no')):
swift_test_auth = 'https'
if 'auth_prefix' not in config:
config['auth_prefix'] = '/'
try:
suffix = '://%(auth_host)s:%(auth_port)s%(auth_prefix)s' % config
swift_test_auth += suffix
except KeyError:
pass # skip
if swift_test_auth_version == "1":
swift_test_auth += 'v1.0'
try:
if 'account' in config:
swift_test_user[0] = '%(account)s:%(username)s' % config
else:
swift_test_user[0] = '%(username)s' % config
swift_test_key[0] = config['password']
except KeyError:
# bad config, no account/username configured, tests cannot be
# run
pass
try:
swift_test_user[1] = '%s%s' % (
'%s:' % config['account2'] if 'account2' in config else '',
config['username2'])
swift_test_key[1] = config['password2']
except KeyError:
pass # old config, no second account tests can be run
try:
swift_test_user[2] = '%s%s' % (
'%s:' % config['account'] if 'account'
in config else '', config['username3'])
swift_test_key[2] = config['password3']
except KeyError:
pass # old config, no third account tests can be run
for _ in range(3):
swift_test_perm[_] = swift_test_user[_]
else:
swift_test_user[0] = config['username']
swift_test_tenant[0] = config['account']
swift_test_key[0] = config['password']
swift_test_user[1] = config['username2']
swift_test_tenant[1] = config['account2']
swift_test_key[1] = config['password2']
swift_test_user[2] = config['username3']
swift_test_tenant[2] = config['account']
swift_test_key[2] = config['password3']
if 'username4' in config:
swift_test_user[3] = config['username4']
swift_test_tenant[3] = config['account4']
swift_test_key[3] = config['password4']
swift_test_domain[3] = config['domain4']
for _ in range(4):
swift_test_perm[_] = swift_test_tenant[_] + ':' \
+ swift_test_user[_]
global skip
skip = not all([swift_test_auth, swift_test_user[0], swift_test_key[0]])
if skip:
print >>sys.stderr, 'SKIPPING FUNCTIONAL TESTS DUE TO NO CONFIG'
global skip2
skip2 = not all([not skip, swift_test_user[1], swift_test_key[1]])
if not skip and skip2:
print >>sys.stderr, \
'SKIPPING SECOND ACCOUNT FUNCTIONAL TESTS' \
' DUE TO NO CONFIG FOR THEM'
global skip3
skip3 = not all([not skip, swift_test_user[2], swift_test_key[2]])
if not skip and skip3:
print >>sys.stderr, \
'SKIPPING THIRD ACCOUNT FUNCTIONAL TESTS DUE TO NO CONFIG FOR THEM'
global skip_if_not_v3
skip_if_not_v3 = (swift_test_auth_version != '3'
or not all([not skip,
swift_test_user[3],
swift_test_key[3]]))
if not skip and skip_if_not_v3:
print >>sys.stderr, \
'SKIPPING FUNCTIONAL TESTS SPECIFIC TO AUTH VERSION 3'
get_cluster_info()
def teardown_package():
global orig_collate
locale.setlocale(locale.LC_COLLATE, orig_collate)
# clean up containers and objects left behind after running tests
conn = Connection(config)
conn.authenticate()
account = Account(conn, config.get('account', config['username']))
account.delete_containers()
global in_process
if in_process:
try:
for server in _test_coros:
server.kill()
except Exception:
pass
try:
rmtree(os.path.dirname(_testdir))
except Exception:
pass
utils.HASH_PATH_PREFIX, utils.HASH_PATH_SUFFIX = \
orig_hash_path_suff_pref
utils.SWIFT_CONF_FILE = orig_swift_conf_name
constraints.reload_constraints()
class AuthError(Exception):
pass
class InternalServerError(Exception):
pass
url = [None, None, None, None]
token = [None, None, None, None]
parsed = [None, None, None, None]
conn = [None, None, None, None]
def connection(url):
if has_insecure:
return http_connection(url, insecure=insecure)
return http_connection(url)
def retry(func, *args, **kwargs):
"""
You can use the kwargs to override:
'retries' (default: 5)
'use_account' (default: 1) - which user's token to pass
'url_account' (default: matches 'use_account') - which user's storage URL
'resource' (default: url[url_account] - URL to connect to; retry()
will interpolate the variable :storage_url: if present
"""
global url, token, parsed, conn
retries = kwargs.get('retries', 5)
attempts, backoff = 0, 1
# use account #1 by default; turn user's 1-indexed account into 0-indexed
use_account = kwargs.pop('use_account', 1) - 1
# access our own account by default
url_account = kwargs.pop('url_account', use_account + 1) - 1
os_options = {'user_domain_name': swift_test_domain[use_account],
'project_domain_name': swift_test_domain[use_account]}
while attempts <= retries:
attempts += 1
try:
if not url[use_account] or not token[use_account]:
url[use_account], token[use_account] = \
get_auth(swift_test_auth, swift_test_user[use_account],
swift_test_key[use_account],
snet=False,
tenant_name=swift_test_tenant[use_account],
auth_version=swift_test_auth_version,
os_options=os_options)
parsed[use_account] = conn[use_account] = None
if not parsed[use_account] or not conn[use_account]:
parsed[use_account], conn[use_account] = \
connection(url[use_account])
# default resource is the account url[url_account]
resource = kwargs.pop('resource', '%(storage_url)s')
template_vars = {'storage_url': url[url_account]}
parsed_result = urlparse(resource % template_vars)
return func(url[url_account], token[use_account],
parsed_result, conn[url_account],
*args, **kwargs)
except (socket.error, HTTPException):
if attempts > retries:
raise
parsed[use_account] = conn[use_account] = None
except AuthError:
url[use_account] = token[use_account] = None
continue
except InternalServerError:
pass
if attempts <= retries:
sleep(backoff)
backoff *= 2
raise Exception('No result after %s retries.' % retries)
def check_response(conn):
resp = conn.getresponse()
if resp.status == 401:
resp.read()
raise AuthError()
elif resp.status // 100 == 5:
resp.read()
raise InternalServerError()
return resp
def load_constraint(name):
global cluster_info
try:
c = cluster_info['swift'][name]
except KeyError:
raise SkipTest("Missing constraint: %s" % name)
if not isinstance(c, int):
raise SkipTest("Bad value, %r, for constraint: %s" % (c, name))
return c
def get_storage_policy_from_cluster_info(info):
policies = info['swift'].get('policies', {})
default_policy = []
non_default_policies = []
for p in policies:
if p.get('default', {}):
default_policy.append(p)
else:
non_default_policies.append(p)
return default_policy, non_default_policies
def reset_acl():
def post(url, token, parsed, conn):
conn.request('POST', parsed.path, '', {
'X-Auth-Token': token,
'X-Account-Access-Control': '{}'
})
return check_response(conn)
resp = retry(post, use_account=1)
resp.read()
def requires_acls(f):
@functools.wraps(f)
def wrapper(*args, **kwargs):
global skip, cluster_info
if skip or not cluster_info:
raise SkipTest
# Determine whether this cluster has account ACLs; if not, skip test
if not cluster_info.get('tempauth', {}).get('account_acls'):
raise SkipTest
if 'keystoneauth' in cluster_info:
# remove when keystoneauth supports account acls
raise SkipTest
reset_acl()
try:
rv = f(*args, **kwargs)
finally:
reset_acl()
return rv
return wrapper
class FunctionalStoragePolicyCollection(object):
def __init__(self, policies):
self._all = policies
self.default = None
for p in self:
if p.get('default', False):
assert self.default is None, 'Found multiple default ' \
'policies %r and %r' % (self.default, p)
self.default = p
@classmethod
def from_info(cls, info=None):
if not (info or cluster_info):
get_cluster_info()
info = info or cluster_info
try:
policy_info = info['swift']['policies']
except KeyError:
raise AssertionError('Did not find any policy info in %r' % info)
policies = cls(policy_info)
assert policies.default, \
'Did not find default policy in %r' % policy_info
return policies
def __len__(self):
return len(self._all)
def __iter__(self):
return iter(self._all)
def __getitem__(self, index):
return self._all[index]
def filter(self, **kwargs):
return self.__class__([p for p in self if all(
p.get(k) == v for k, v in kwargs.items())])
def exclude(self, **kwargs):
return self.__class__([p for p in self if all(
p.get(k) != v for k, v in kwargs.items())])
def select(self):
return random.choice(self)
def requires_policies(f):
@functools.wraps(f)
def wrapper(self, *args, **kwargs):
if skip:
raise SkipTest
try:
self.policies = FunctionalStoragePolicyCollection.from_info()
except AssertionError:
raise SkipTest("Unable to determine available policies")
if len(self.policies) < 2:
raise SkipTest("Multiple policies not enabled")
return f(self, *args, **kwargs)
return wrapper
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