cinder/cinder/tests/test_sheepdog.py
Chang Bo Guo f709c9d3db clean up numeric expressions in test
Replace numeric expressions with constants in tests
to make code more readable.

Change-Id: I42469cdbe3cafd36f8d9855c8284f885ffa7f465
2013-10-30 04:40:08 -07:00

146 lines
4.8 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright (c) 2013 Zelin.io
# 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.
import contextlib
import os
import tempfile
from cinder import exception
from cinder.image import image_utils
from cinder.openstack.common import processutils
from cinder import test
from cinder import units
from cinder.volume.drivers.sheepdog import SheepdogDriver
COLLIE_NODE_INFO = """
0 107287605248 3623897354 3%
Total 107287605248 3623897354 3% 54760833024
"""
COLLIE_CLUSTER_INFO_0_5 = """
Cluster status: running
Cluster created at Tue Jun 25 19:51:41 2013
Epoch Time Version
2013-06-25 19:51:41 1 [127.0.0.1:7000, 127.0.0.1:7001, 127.0.0.1:7002]
"""
COLLIE_CLUSTER_INFO_0_6 = """
Cluster status: running, auto-recovery enabled
Cluster created at Tue Jun 25 19:51:41 2013
Epoch Time Version
2013-06-25 19:51:41 1 [127.0.0.1:7000, 127.0.0.1:7001, 127.0.0.1:7002]
"""
class FakeImageService:
def download(self, context, image_id, path):
pass
class SheepdogTestCase(test.TestCase):
def setUp(self):
super(SheepdogTestCase, self).setUp()
self.driver = SheepdogDriver()
def test_update_volume_stats(self):
def fake_stats(*args):
return COLLIE_NODE_INFO, ''
self.stubs.Set(self.driver, '_execute', fake_stats)
expected = dict(
volume_backend_name='sheepdog',
vendor_name='Open Source',
dirver_version=self.driver.VERSION,
storage_protocol='sheepdog',
total_capacity_gb=float(107287605248) / units.GiB,
free_capacity_gb=float(107287605248 - 3623897354) / units.GiB,
reserved_percentage=0,
QoS_support=False)
actual = self.driver.get_volume_stats(True)
self.assertDictMatch(expected, actual)
def test_update_volume_stats_error(self):
def fake_stats(*args):
raise processutils.ProcessExecutionError()
self.stubs.Set(self.driver, '_execute', fake_stats)
expected = dict(
volume_backend_name='sheepdog',
vendor_name='Open Source',
dirver_version=self.driver.VERSION,
storage_protocol='sheepdog',
total_capacity_gb='unknown',
free_capacity_gb='unknown',
reserved_percentage=0,
QoS_support=False)
actual = self.driver.get_volume_stats(True)
self.assertDictMatch(expected, actual)
def test_check_for_setup_error_0_5(self):
def fake_stats(*args):
return COLLIE_CLUSTER_INFO_0_5, ''
self.stubs.Set(self.driver, '_execute', fake_stats)
self.driver.check_for_setup_error()
def test_check_for_setup_error_0_6(self):
def fake_stats(*args):
return COLLIE_CLUSTER_INFO_0_6, ''
self.stubs.Set(self.driver, '_execute', fake_stats)
self.driver.check_for_setup_error()
def test_copy_image_to_volume(self):
@contextlib.contextmanager
def fake_temp_file(dir):
class FakeTmp:
def __init__(self, name):
self.name = name
yield FakeTmp('test')
def fake_try_execute(obj, *command, **kwargs):
return True
self.stubs.Set(tempfile, 'NamedTemporaryFile', fake_temp_file)
self.stubs.Set(os.path, 'exists', lambda x: True)
self.stubs.Set(image_utils, 'fetch_verify_image',
lambda w, x, y, z: None)
self.stubs.Set(image_utils, 'convert_image',
lambda x, y, z: None)
self.stubs.Set(SheepdogDriver, '_try_execute', fake_try_execute)
self.driver.copy_image_to_volume(None, {'name': 'test',
'size': 1},
FakeImageService(), None)
def test_extend_volume(self):
fake_name = u'volume-00000001'
fake_size = '20'
fake_vol = {'project_id': 'testprjid', 'name': fake_name,
'size': fake_size,
'id': 'a720b3c0-d1f0-11e1-9b23-0800200c9a66'}
self.mox.StubOutWithMock(self.driver, '_resize')
size = int(fake_size) * units.GiB
self.driver._resize(fake_vol, size=size)
self.mox.ReplayAll()
self.driver.extend_volume(fake_vol, fake_size)
self.mox.VerifyAll()