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# Copyright (c) 2013 The Johns Hopkins University/Applied Physics Laboratory
# 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.
from unittest import mock
from oslo_concurrency import processutils as putils
from os_brick.caches import opencas
from os_brick import exception
from os_brick.tests import base
class OpenCASEngineTestCase(base.TestCase):
def setUp(self):
super(OpenCASEngineTestCase, self).setUp()
self.connection_info = {
"data": {
"device_path": "/dev/disk/by-path/"
"ip-192.0.2.0:3260-iscsi-iqn.2010-10.org.openstack"
":volume-fake_uuid-lun-1",
},
}
self.root_helper = None
@mock.patch('os_brick.executor.Executor._execute')
def test_os_execute_exception(self, mock_execute):
raise_err = [
putils.ProcessExecutionError(exit_code=1),
mock.DEFAULT,
]
engine = opencas.OpenCASEngine(root_helper=None, opencas_cache_id=1)
mock_execute.side_effect = raise_err
self.assertRaises(putils.ProcessExecutionError,
engine.os_execute, 'cmd', 'param')
mock_execute.side_effect = raise_err
self.assertRaises(putils.ProcessExecutionError,
engine.is_engine_ready)
mock_execute.side_effect = raise_err
self.assertRaises(putils.ProcessExecutionError,
engine._get_mapped_casdev, 'path')
mock_execute.side_effect = raise_err
self.assertRaises(putils.ProcessExecutionError,
engine._get_mapped_coredev, 'path')
mock_execute.side_effect = raise_err
self.assertRaises(putils.ProcessExecutionError,
engine._map_casdisk, 'path')
mock_execute.side_effect = raise_err
self.assertRaises(putils.ProcessExecutionError,
engine._unmap_casdisk, 'path')
@mock.patch('os_brick.executor.Executor._execute')
def test_is_engine_ready(self, moc_exec):
out_ready = """type id disk status write policy device
cache 1 /dev/nvme0n1 Running wt -"""
out_not_ready = 'type id disk status write policy device'
err = ''
engine = opencas.OpenCASEngine(root_helper=None, opencas_cache_id=1)
moc_exec.return_value = (out_ready, err)
ret = engine.is_engine_ready()
self.assertTrue(ret)
moc_exec.return_value = (out_not_ready, err)
ret = engine.is_engine_ready()
self.assertFalse(ret)
moc_exec.assert_has_calls([
mock.call('casadm', '-L', run_as_root=True, root_helper=None)
])
@mock.patch('os_brick.executor.Executor._execute')
def test_get_mapped_casdev(self, moc_exec):
out_ready = """type id disk status write policy device
cache 1 /dev/nvme0n1 Running wt -
└core 1 /dev/sdd Active - /dev/cas1-1"""
err = ''
engine = opencas.OpenCASEngine(root_helper=None, opencas_cache_id=1)
moc_exec.return_value = (out_ready, err)
ret1 = engine._get_mapped_casdev('/dev/sdd')
self.assertEqual('/dev/cas1-1', ret1)
@mock.patch('os_brick.executor.Executor._execute')
def test_get_mapped_coredev(self, moc_exec):
out_ready = """type id disk status write policy device
cache 1 /dev/nvme0n1 Running wt -
└core 1 /dev/sdd Active - /dev/cas1-1"""
err = ''
engine = opencas.OpenCASEngine(root_helper=None, opencas_cache_id=1)
moc_exec.return_value = (out_ready, err)
ret1, ret2 = engine._get_mapped_coredev('/dev/cas1-1')
self.assertEqual('1', ret1)
self.assertEqual('/dev/sdd', ret2)
@mock.patch('os_brick.executor.Executor._execute')
@mock.patch('os_brick.caches.opencas.OpenCASEngine._get_mapped_casdev')
def test_map_casdisk(self, moc_get_mapped_casdev, moc_exec):
engine = opencas.OpenCASEngine(root_helper=None, opencas_cache_id=1)
moc_get_mapped_casdev.return_value = ''
moc_exec.return_value = ('', '')
engine._map_casdisk('/dev/sdd')
moc_exec.assert_has_calls([
mock.call('casadm', '-A', '-i', 1, '-d', '/dev/sdd',
run_as_root=True, root_helper=None)
])
@mock.patch('os_brick.executor.Executor._execute')
def test_unmap_casdisk(self, moc_exec):
engine = opencas.OpenCASEngine(root_helper=None, opencas_cache_id=1)
moc_exec.return_value = ('', '')
engine._unmap_casdisk('1')
moc_exec.assert_has_calls([
mock.call('casadm', '-R', '-f', '-i', 1, '-j', '1',
run_as_root=True, root_helper=None)
])
@mock.patch('os_brick.caches.opencas.OpenCASEngine._map_casdisk')
def test_attach_volume(self, moc_map):
engine = opencas.OpenCASEngine(root_helper=None, opencas_cache_id=1)
moc_map.return_value = ''
args = {'no_dev_path': 'path'}
self.assertRaises(exception.VolumePathsNotFound,
engine.attach_volume, **args)
self.assertRaises(exception.VolumePathsNotFound, engine.attach_volume)
# No exception if dev_path set correctly
args = {'dev_path': 'path'}
engine.attach_volume(**args)
@mock.patch('os_brick.executor.Executor._execute')
def test_detach_volume(self, moc_exec):
out_ready = """type id disk status write policy device
cache 1 /dev/nvme0n1 Running wt -
└core 1 /dev/sdd Active - /dev/cas1-1"""
err = ''
engine = opencas.OpenCASEngine(root_helper=None, opencas_cache_id=1)
moc_exec.return_value = (out_ready, err)
args = {'no_dev_path': 'path'}
self.assertRaises(exception.VolumePathsNotFound,
engine.detach_volume, **args)
self.assertRaises(exception.VolumePathsNotFound, engine.detach_volume)
# No exception if dev_path set correctly
args = {'dev_path': '/dev/cas1-1'}
engine.detach_volume(**args)
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