184 lines
5.8 KiB
Python
184 lines
5.8 KiB
Python
# Copyright 2015 - Mirantis, Inc.
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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 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 sys
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import time
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from oslo_config import cfg
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from oslo_log import log as logging
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from oslotest import base
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import six
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import testtools.matchers as ttm
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from lbaas import config
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from lbaas.db.sqlalchemy import base as db_sa_base
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from lbaas.db.v1 import api as db_api_v2
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LOG = logging.getLogger(__name__)
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CONF = config.CONF
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class BaseTest(base.BaseTestCase):
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def assertListEqual(self, l1, l2):
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if tuple(sys.version_info)[0:2] < (2, 7):
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# for python 2.6 compatibility
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self.assertEqual(l1, l2)
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else:
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super(BaseTest, self).assertListEqual(l1, l2)
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def assertDictEqual(self, cmp1, cmp2):
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if tuple(sys.version_info)[0:2] < (2, 7):
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# for python 2.6 compatibility
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self.assertThat(cmp1, ttm.Equals(cmp2))
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else:
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super(BaseTest, self).assertDictEqual(cmp1, cmp2)
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def _assert_single_item(self, items, **props):
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return self._assert_multiple_items(items, 1, **props)[0]
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def _assert_multiple_items(self, items, count, **props):
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def _matches(item, **props):
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for prop_name, prop_val in six.iteritems(props):
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v = item[prop_name] if isinstance(
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item, dict) else getattr(item, prop_name)
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if v != prop_val:
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return False
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return True
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filtered_items = list(
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filter(lambda item: _matches(item, **props), items)
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)
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found = len(filtered_items)
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if found != count:
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LOG.info("[failed test ctx] items=%s, expected_props=%s" % (str(
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items), props))
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self.fail("Wrong number of items found [props=%s, "
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"expected=%s, found=%s]" % (props, count, found))
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return filtered_items
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def _assert_dict_contains_subset(self, expected, actual, msg=None):
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"""Checks whether actual is a superset of expected.
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Note: This is almost the exact copy of the standard method
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assertDictContainsSubset() that appeared in Python 2.7, it was
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added to use it with Python 2.6.
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"""
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missing = []
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mismatched = []
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for key, value in six.iteritems(expected):
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if key not in actual:
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missing.append(key)
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elif value != actual[key]:
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mismatched.append('%s, expected: %s, actual: %s' %
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(key, value,
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actual[key]))
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if not (missing or mismatched):
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return
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standardMsg = ''
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if missing:
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standardMsg = 'Missing: %s' % ','.join(m for m in missing)
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if mismatched:
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if standardMsg:
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standardMsg += '; '
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standardMsg += 'Mismatched values: %s' % ','.join(mismatched)
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self.fail(self._formatMessage(msg, standardMsg))
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def _await(self, predicate, delay=1, timeout=60):
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"""Awaits for predicate function to evaluate to True.
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If within a configured timeout predicate function hasn't evaluated
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to True then an exception is raised.
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:param predicate: Predication function.
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:param delay: Delay in seconds between predicate function calls.
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:param timeout: Maximum amount of time to wait for predication
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function to evaluate to True.
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:return:
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"""
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end_time = time.time() + timeout
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while True:
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if predicate():
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break
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if time.time() + delay > end_time:
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raise AssertionError("Failed to wait for expected result.")
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time.sleep(delay)
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def _sleep(self, seconds):
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time.sleep(seconds)
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class DbTestCase(BaseTest):
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is_heavy_init_called = False
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@classmethod
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def __heavy_init(cls):
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"""Method that runs heavy_init().
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Make this method private to prevent extending this one.
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It runs heavy_init() only once.
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Note: setUpClass() can be used, but it magically is not invoked
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from child class in another module.
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"""
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if not cls.is_heavy_init_called:
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cls.heavy_init()
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cls.is_heavy_init_called = True
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@classmethod
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def heavy_init(cls):
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"""Runs a long initialization.
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This method runs long initialization once by class
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and can be extended by child classes.
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"""
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# If using sqlite, change to memory. The default is file based.
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if cfg.CONF.database.connection.startswith('sqlite'):
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cfg.CONF.set_default('connection', 'sqlite://', group='database')
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cfg.CONF.set_default('max_overflow', -1, group='database')
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cfg.CONF.set_default('max_pool_size', 1000, group='database')
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db_api_v2.setup_db()
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def _clean_db(self):
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with db_api_v2.transaction():
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db_api_v2.delete_members()
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db_api_v2.delete_listeners()
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if not cfg.CONF.database.connection.startswith('sqlite'):
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db_sa_base.get_engine().dispose()
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def setUp(self):
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super(DbTestCase, self).setUp()
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self.__heavy_init()
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self.addCleanup(self._clean_db)
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def is_db_session_open(self):
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return db_sa_base._get_thread_local_session() is not None
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