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# Copyright (c) 2010-2018 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 unittest
from unittest import mock
import time
import os
import random
from tempfile import mkdtemp
from shutil import rmtree
from eventlet import Timeout
from swift.common.db_auditor import DatabaseAuditor
from test.debug_logger import debug_logger
class FakeDatabaseBroker(object):
def __init__(self, path, logger):
self.path = path
self.db_file = path
self.file = os.path.basename(path)
def is_deleted(self):
return False
def get_info(self):
if self.file.startswith('fail'):
raise ValueError
if self.file.startswith('true'):
return 'ok'
class FakeDatabaseAuditor(DatabaseAuditor):
server_type = "container"
broker_class = FakeDatabaseBroker
def _audit(self, info, broker):
return None
class TestAuditor(unittest.TestCase):
def setUp(self):
self.testdir = os.path.join(mkdtemp(), 'tmp_test_database_auditor')
self.logger = debug_logger()
rmtree(self.testdir, ignore_errors=1)
os.mkdir(self.testdir)
fnames = ['true1.db', 'true2.db', 'true3.db',
'fail1.db', 'fail2.db']
for fn in fnames:
with open(os.path.join(self.testdir, fn), 'w+') as f:
f.write(' ')
def tearDown(self):
rmtree(os.path.dirname(self.testdir), ignore_errors=1)
def test_run_forever(self):
sleep_times = random.randint(5, 10)
call_times = sleep_times - 1
class FakeTime(object):
def __init__(self):
self.times = 0
def sleep(self, sec):
self.times += 1
if self.times < sleep_times:
time.sleep(0.1)
else:
# stop forever by an error
raise ValueError()
def time(self):
return time.time()
conf = {}
test_auditor = FakeDatabaseAuditor(conf, logger=self.logger)
with mock.patch('swift.common.db_auditor.time', FakeTime()):
def fake_audit_location_generator(*args, **kwargs):
files = os.listdir(self.testdir)
return [(os.path.join(self.testdir, f), '', '') for f in files]
with mock.patch('swift.common.db_auditor.audit_location_generator',
fake_audit_location_generator):
self.assertRaises(ValueError, test_auditor.run_forever)
self.assertEqual(test_auditor.failures, 2 * call_times)
self.assertEqual(test_auditor.passes, 3 * call_times)
# now force timeout path code coverage
with mock.patch('swift.common.db_auditor.DatabaseAuditor.'
'_one_audit_pass', side_effect=Timeout()):
with mock.patch('swift.common.db_auditor.time', FakeTime()):
self.assertRaises(ValueError, test_auditor.run_forever)
def test_run_once(self):
conf = {}
test_auditor = FakeDatabaseAuditor(conf, logger=self.logger)
def fake_audit_location_generator(*args, **kwargs):
files = os.listdir(self.testdir)
return [(os.path.join(self.testdir, f), '', '') for f in files]
with mock.patch('swift.common.db_auditor.audit_location_generator',
fake_audit_location_generator):
test_auditor.run_once()
self.assertEqual(test_auditor.failures, 2)
self.assertEqual(test_auditor.passes, 3)
def test_one_audit_pass(self):
conf = {}
test_auditor = FakeDatabaseAuditor(conf, logger=self.logger)
def fake_audit_location_generator(*args, **kwargs):
files = sorted(os.listdir(self.testdir))
return [(os.path.join(self.testdir, f), '', '') for f in files]
# force code coverage for logging path
with mock.patch('swift.common.db_auditor.audit_location_generator',
fake_audit_location_generator), \
mock.patch('time.time',
return_value=(test_auditor.logging_interval * 2)):
test_auditor._one_audit_pass(0)
self.assertEqual(test_auditor.failures, 1)
self.assertEqual(test_auditor.passes, 3)
def test_database_auditor(self):
conf = {}
test_auditor = FakeDatabaseAuditor(conf, logger=self.logger)
files = os.listdir(self.testdir)
for f in files:
path = os.path.join(self.testdir, f)
test_auditor.audit(path)
self.assertEqual(test_auditor.failures, 2)
self.assertEqual(test_auditor.passes, 3)
if __name__ == '__main__':
unittest.main()
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