deb-manila/manila/test.py
Julia Varlamova b6ab3167dc Use entry_points for manila scripts
Manila scripts located in bin/* should be covered with unit tests.
In order to add unit tests for bin/* scripts:
- all
- api
- manage
- scheduler
- share
we move them into manila/cmd and use pbr to setup console scripts
which will call the respective main function of each script under manila/cmd.
It will allow us to import from manila.cmd and individually test each 'main' function.

Add unit tests for manila/cmd/* scripts.

Implements bp unit-tests-for-manila-scripts

Change-Id: I9be6b948a6de7ba76405411e98d7531cf225b57e
2015-04-14 21:04:01 +03:00

342 lines
12 KiB
Python

# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# 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.
"""Base classes for our unit tests.
Allows overriding of flags for use of fakes, and some black magic for
inline callbacks.
"""
import os
import shutil
import uuid
import fixtures
import mock
from oslo_concurrency import lockutils
from oslo_config import cfg
from oslo_config import fixture as config_fixture
import oslo_i18n
from oslo_log import log
from oslo_messaging import conffixture as messaging_conffixture
import oslotest.base as base_test
import six
from manila.db import migration
from manila.db.sqlalchemy import api as db_api
from manila.db.sqlalchemy import models as db_models
from manila import rpc
from manila import service
from manila.tests import conf_fixture
from manila.tests import fake_notifier
test_opts = [
cfg.StrOpt('sqlite_clean_db',
default='clean.sqlite',
help='File name of clean sqlite database.'),
]
CONF = cfg.CONF
CONF.register_opts(test_opts)
LOG = log.getLogger(__name__)
_DB_CACHE = None
class Database(fixtures.Fixture):
def __init__(self, db_session, db_migrate, sql_connection, sqlite_db,
sqlite_clean_db):
self.sql_connection = sql_connection
self.sqlite_db = sqlite_db
self.sqlite_clean_db = sqlite_clean_db
self.engine = db_session.get_engine()
self.engine.dispose()
conn = self.engine.connect()
if sql_connection == "sqlite://":
self.setup_sqlite(db_migrate)
else:
testdb = os.path.join(CONF.state_path, sqlite_db)
db_migrate.upgrade('head')
if os.path.exists(testdb):
return
if sql_connection == "sqlite://":
conn = self.engine.connect()
self._DB = "".join(line for line in conn.connection.iterdump())
self.engine.dispose()
else:
cleandb = os.path.join(CONF.state_path, sqlite_clean_db)
shutil.copyfile(testdb, cleandb)
def setUp(self):
super(Database, self).setUp()
if self.sql_connection == "sqlite://":
conn = self.engine.connect()
conn.connection.executescript(self._DB)
self.addCleanup(self.engine.dispose) # pylint: disable=E1101
else:
shutil.copyfile(
os.path.join(CONF.state_path, self.sqlite_clean_db),
os.path.join(CONF.state_path, self.sqlite_db),
)
def setup_sqlite(self, db_migrate):
if db_migrate.version():
return
db_models.BASE.metadata.create_all(self.engine)
db_migrate.stamp('head')
class TestCase(base_test.BaseTestCase):
"""Test case base class for all unit tests."""
def setUp(self):
"""Run before each test method to initialize test environment."""
super(TestCase, self).setUp()
oslo_i18n.enable_lazy(enable=False)
conf_fixture.set_defaults(CONF)
CONF([], default_config_files=[])
global _DB_CACHE
if not _DB_CACHE:
_DB_CACHE = Database(
db_api,
migration,
sql_connection=CONF.database.connection,
sqlite_db=CONF.sqlite_db,
sqlite_clean_db=CONF.sqlite_clean_db,
)
self.useFixture(_DB_CACHE)
self.injected = []
self._services = []
self.flags(fatal_exception_format_errors=True)
# This will be cleaned up by the NestedTempfile fixture
lock_path = self.useFixture(fixtures.TempDir()).path
self.fixture = self.useFixture(config_fixture.Config(lockutils.CONF))
self.fixture.config(lock_path=lock_path, group='oslo_concurrency')
self.fixture.config(
disable_process_locking=True, group='oslo_concurrency')
rpc.add_extra_exmods('manila.tests')
self.addCleanup(rpc.clear_extra_exmods)
self.addCleanup(rpc.cleanup)
self.messaging_conf = messaging_conffixture.ConfFixture(CONF)
self.messaging_conf.transport_driver = 'fake'
self.messaging_conf.response_timeout = 15
self.useFixture(self.messaging_conf)
rpc.init(CONF)
fake_notifier.stub_notifier(self)
def tearDown(self):
"""Runs after each test method to tear down test environment."""
super(TestCase, self).tearDown()
# Reset any overridden flags
CONF.reset()
# Stop any timers
for x in self.injected:
try:
x.stop()
except AssertionError:
pass
# Kill any services
for x in self._services:
try:
x.kill()
except Exception:
pass
# Delete attributes that don't start with _ so they don't pin
# memory around unnecessarily for the duration of the test
# suite
for key in [k for k in self.__dict__.keys() if k[0] != '_']:
del self.__dict__[key]
def flags(self, **kw):
"""Override flag variables for a test."""
for k, v in six.iteritems(kw):
CONF.set_override(k, v)
def start_service(self, name, host=None, **kwargs):
host = host and host or uuid.uuid4().hex
kwargs.setdefault('host', host)
kwargs.setdefault('binary', 'manila-%s' % name)
svc = service.Service.create(**kwargs)
svc.start()
self._services.append(svc)
return svc
def mock_object(self, obj, attr_name, new_attr=None, **kwargs):
"""Use python mock to mock an object attribute
Mocks the specified objects attribute with the given value.
Automatically performs 'addCleanup' for the mock.
"""
if not new_attr:
new_attr = mock.Mock()
patcher = mock.patch.object(obj, attr_name, new_attr, **kwargs)
patcher.start()
self.addCleanup(patcher.stop)
return new_attr
# Useful assertions
def assertDictMatch(self, d1, d2, approx_equal=False, tolerance=0.001):
"""Assert two dicts are equivalent.
This is a 'deep' match in the sense that it handles nested
dictionaries appropriately.
NOTE:
If you don't care (or don't know) a given value, you can specify
the string DONTCARE as the value. This will cause that dict-item
to be skipped.
"""
def raise_assertion(msg):
d1str = str(d1)
d2str = str(d2)
base_msg = ('Dictionaries do not match. %(msg)s d1: %(d1str)s '
'd2: %(d2str)s' %
{"msg": msg, "d1str": d1str, "d2str": d2str})
raise AssertionError(base_msg)
d1keys = set(d1.keys())
d2keys = set(d2.keys())
if d1keys != d2keys:
d1only = d1keys - d2keys
d2only = d2keys - d1keys
raise_assertion('Keys in d1 and not d2: %(d1only)s. '
'Keys in d2 and not d1: %(d2only)s' %
{"d1only": d1only, "d2only": d2only})
for key in d1keys:
d1value = d1[key]
d2value = d2[key]
try:
error = abs(float(d1value) - float(d2value))
within_tolerance = error <= tolerance
except (ValueError, TypeError):
# If both values aren't convertable to float, just ignore
# ValueError if arg is a str, TypeError if it's something else
# (like None)
within_tolerance = False
if hasattr(d1value, 'keys') and hasattr(d2value, 'keys'):
self.assertDictMatch(d1value, d2value)
elif 'DONTCARE' in (d1value, d2value):
continue
elif approx_equal and within_tolerance:
continue
elif d1value != d2value:
raise_assertion("d1['%(key)s']=%(d1value)s != "
"d2['%(key)s']=%(d2value)s" %
{
"key": key,
"d1value": d1value,
"d2value": d2value
})
def assertDictListMatch(self, L1, L2, approx_equal=False, tolerance=0.001):
"""Assert a list of dicts are equivalent."""
def raise_assertion(msg):
L1str = str(L1)
L2str = str(L2)
base_msg = ('List of dictionaries do not match: %(msg)s '
'L1: %(L1str)s L2: %(L2str)s' %
{"msg": msg, "L1str": L1str, "L2str": L2str})
raise AssertionError(base_msg)
L1count = len(L1)
L2count = len(L2)
if L1count != L2count:
raise_assertion('Length mismatch: len(L1)=%(L1count)d != '
'len(L2)=%(L2count)d' %
{"L1count": L1count, "L2count": L2count})
for d1, d2 in zip(L1, L2):
self.assertDictMatch(d1, d2, approx_equal=approx_equal,
tolerance=tolerance)
def assertSubDictMatch(self, sub_dict, super_dict):
"""Assert a sub_dict is subset of super_dict."""
self.assertTrue(set(sub_dict.keys()).issubset(set(super_dict.keys())))
for k, sub_value in sub_dict.items():
super_value = super_dict[k]
if isinstance(sub_value, dict):
self.assertSubDictMatch(sub_value, super_value)
elif 'DONTCARE' in (sub_value, super_value):
continue
else:
self.assertEqual(sub_value, super_value)
def assertIn(self, a, b, *args, **kwargs):
"""Python < v2.7 compatibility. Assert 'a' in 'b'."""
try:
f = super(TestCase, self).assertIn
except AttributeError:
self.assertTrue(a in b, *args, **kwargs)
else:
f(a, b, *args, **kwargs)
def assertNotIn(self, a, b, *args, **kwargs):
"""Python < v2.7 compatibility. Assert 'a' NOT in 'b'."""
try:
f = super(TestCase, self).assertNotIn
except AttributeError:
self.assertFalse(a in b, *args, **kwargs)
else:
f(a, b, *args, **kwargs)
def assertIsInstance(self, a, b, *args, **kwargs):
"""Python < v2.7 compatibility."""
try:
f = super(TestCase, self).assertIsInstance
except AttributeError:
self.assertTrue(isinstance(a, b))
else:
f(a, b, *args, **kwargs)
def assertIsNone(self, a, *args, **kwargs):
"""Python < v2.7 compatibility."""
try:
f = super(TestCase, self).assertIsNone
except AttributeError:
self.assertTrue(a is None)
else:
f(a, *args, **kwargs)
def _dict_from_object(self, obj, ignored_keys):
if ignored_keys is None:
ignored_keys = []
return dict([(k, v) for k, v in obj.iteritems()
if k not in ignored_keys])
def _assertEqualListsOfObjects(self, objs1, objs2, ignored_keys=None):
obj_to_dict = lambda o: self._dict_from_object(o, ignored_keys)
sort_key = lambda d: [d[k] for k in sorted(d)]
conv_and_sort = lambda obj: sorted(map(obj_to_dict, obj), key=sort_key)
self.assertEqual(conv_and_sort(objs1), conv_and_sort(objs2))