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# 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
from ironic_python_agent import errors
from ironic_python_agent import hardware
from ironic_python_agent import raid_utils
from ironic_python_agent.tests.unit import base
from ironic_python_agent.tests.unit.samples import hardware_samples as hws
from ironic_python_agent.tests.unit import test_hardware
from ironic_python_agent import utils
class TestRaidUtils(base.IronicAgentTest):
@mock.patch.object(utils, 'execute', autospec=True)
def test__get_actual_component_devices(self, mock_execute):
mock_execute.side_effect = [(hws.MDADM_DETAIL_OUTPUT, '')]
component_devices = raid_utils._get_actual_component_devices(
'/dev/md0')
self.assertEqual(['/dev/vde1', '/dev/vdf1'], component_devices)
@mock.patch.object(utils, 'execute', autospec=True)
def test__get_actual_component_devices_broken_raid0(self, mock_execute):
mock_execute.side_effect = [(hws.MDADM_DETAIL_OUTPUT_BROKEN_RAID0, '')]
component_devices = raid_utils._get_actual_component_devices(
'/dev/md126')
self.assertEqual(['/dev/sda2'], component_devices)
@mock.patch.object(raid_utils, '_get_actual_component_devices',
autospec=True)
@mock.patch.object(utils, 'execute', autospec=True)
def test_create_raid_device(self, mock_execute, mocked_components):
logical_disk = {
"block_devices": ['/dev/sda', '/dev/sdb', '/dev/sdc'],
"raid_level": "1",
}
mocked_components.return_value = ['/dev/sda1',
'/dev/sdb1',
'/dev/sdc1']
raid_utils.create_raid_device(0, logical_disk)
mock_execute.assert_called_once_with(
'mdadm', '--create', '/dev/md0', '--force', '--run',
'--metadata=1', '--level', '1', '--raid-devices', 3,
'/dev/sda1', '/dev/sdb1', '/dev/sdc1')
@mock.patch.object(raid_utils, '_get_actual_component_devices',
autospec=True)
@mock.patch.object(utils, 'execute', autospec=True)
def test_create_raid_device_missing_device(self, mock_execute,
mocked_components):
logical_disk = {
"block_devices": ['/dev/sda', '/dev/sdb', '/dev/sdc'],
"raid_level": "1",
}
mocked_components.return_value = ['/dev/sda1',
'/dev/sdc1']
raid_utils.create_raid_device(0, logical_disk)
expected_calls = [
mock.call('mdadm', '--create', '/dev/md0', '--force', '--run',
'--metadata=1', '--level', '1', '--raid-devices', 3,
'/dev/sda1', '/dev/sdb1', '/dev/sdc1'),
mock.call('mdadm', '--add', '/dev/md0', '/dev/sdb1',
attempts=3, delay_on_retry=True)
]
self.assertEqual(mock_execute.call_count, 2)
mock_execute.assert_has_calls(expected_calls)
@mock.patch.object(utils, 'execute', autospec=True)
def test_create_raid_device_fail_create_device(self, mock_execute):
logical_disk = {
"block_devices": ['/dev/sda', '/dev/sdb', '/dev/sdc'],
"raid_level": "1",
}
mock_execute.side_effect = processutils.ProcessExecutionError()
self.assertRaisesRegex(errors.SoftwareRAIDError,
"Failed to create md device /dev/md0",
raid_utils.create_raid_device, 0,
logical_disk)
@mock.patch.object(raid_utils, '_get_actual_component_devices',
autospec=True)
@mock.patch.object(utils, 'execute', autospec=True)
def test_create_raid_device_fail_read_device(self, mock_execute,
mocked_components):
logical_disk = {
"block_devices": ['/dev/sda', '/dev/sdb', '/dev/sdc'],
"raid_level": "1",
}
mock_execute.side_effect = [mock.Mock,
processutils.ProcessExecutionError()]
mocked_components.return_value = ['/dev/sda1',
'/dev/sdc1']
self.assertRaisesRegex(errors.SoftwareRAIDError,
"Failed re-add /dev/sdb1 to /dev/md0",
raid_utils.create_raid_device, 0,
logical_disk)
@mock.patch.object(hardware, 'dispatch_to_managers', autospec=True)
class TestGetNextFreeRaidDevice(base.IronicAgentTest):
def test_ok(self, mock_dispatch):
mock_dispatch.return_value = \
test_hardware.RAID_BLK_DEVICE_TEMPLATE_DEVICES
result = raid_utils.get_next_free_raid_device()
self.assertEqual('/dev/md2', result)
mock_dispatch.assert_called_once_with('list_block_devices')
def test_no_device(self, mock_dispatch):
mock_dispatch.return_value = [
hardware.BlockDevice(name=f'/dev/md{idx}', model='RAID',
size=1765517033470, rotational=False,
vendor="FooTastic", uuid="")
for idx in range(128)
]
self.assertRaises(errors.SoftwareRAIDError,
raid_utils.get_next_free_raid_device)
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