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OpenStack Study: test_brick_linuxscsi.py**** CubicPower OpenStack Study ****
# (c) Copyright 2013 Hewlett-Packard Development Company, L.P. # # 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 os.path import string from cinder.brick.initiator import linuxscsi from cinder.openstack.common import log as logging from cinder import test LOG = logging.getLogger(__name__)
**** CubicPower OpenStack Study **** class LinuxSCSITestCase(test.TestCase):
**** CubicPower OpenStack Study **** def setUp(self): super(LinuxSCSITestCase, self).setUp() self.cmds = [] self.stubs.Set(os.path, 'realpath', lambda x: '/dev/sdc') self.linuxscsi = linuxscsi.LinuxSCSI(None, execute=self.fake_execute)
**** CubicPower OpenStack Study **** def fake_execute(self, *cmd, **kwargs): self.cmds.append(string.join(cmd)) return "", None
**** CubicPower OpenStack Study **** def test_echo_scsi_command(self): self.linuxscsi.echo_scsi_command("/some/path", "1") expected_commands = ['tee -a /some/path'] self.assertEqual(expected_commands, self.cmds)
**** CubicPower OpenStack Study **** def test_get_name_from_path(self): device_name = "/dev/sdc" self.stubs.Set(os.path, 'realpath', lambda x: device_name) disk_path = ("/dev/disk/by-path/ip-10.10.220.253:3260-" "iscsi-iqn.2000-05.com.3pardata:21810002ac00383d-lun-0") name = self.linuxscsi.get_name_from_path(disk_path) self.assertEqual(name, device_name) self.stubs.Set(os.path, 'realpath', lambda x: "bogus") name = self.linuxscsi.get_name_from_path(disk_path) self.assertIsNone(name)
**** CubicPower OpenStack Study **** def test_remove_scsi_device(self): self.stubs.Set(os.path, "exists", lambda x: False) self.linuxscsi.remove_scsi_device("sdc") expected_commands = [] self.assertEqual(expected_commands, self.cmds) self.stubs.Set(os.path, "exists", lambda x: True) self.linuxscsi.remove_scsi_device("sdc") expected_commands = [('tee -a /sys/block/sdc/device/delete')] self.assertEqual(expected_commands, self.cmds)
**** CubicPower OpenStack Study **** def test_flush_multipath_device(self): self.linuxscsi.flush_multipath_device('/dev/dm-9') expected_commands = [('multipath -f /dev/dm-9')] self.assertEqual(expected_commands, self.cmds)
**** CubicPower OpenStack Study **** def test_flush_multipath_devices(self): self.linuxscsi.flush_multipath_devices() expected_commands = [('multipath -F')] self.assertEqual(expected_commands, self.cmds)
**** CubicPower OpenStack Study **** def test_remove_multipath_device(self): def fake_find_multipath_device(device): devices = [{'device': '/dev/sde', 'host': 0, 'channel': 0, 'id': 0, 'lun': 1}, {'device': '/dev/sdf', 'host': 2, 'channel': 0, 'id': 0, 'lun': 1}, ] info = {"device": "dm-3", "id": "350002ac20398383d", "devices": devices} return info self.stubs.Set(os.path, "exists", lambda x: True) self.stubs.Set(self.linuxscsi, 'find_multipath_device', fake_find_multipath_device) self.linuxscsi.remove_multipath_device('/dev/dm-3') expected_commands = [('tee -a /sys/block/sde/device/delete'), ('tee -a /sys/block/sdf/device/delete'), ('multipath -f 350002ac20398383d'), ] self.assertEqual(expected_commands, self.cmds)
**** CubicPower OpenStack Study **** def fake_find_multipath_device(device): devices = [{'device': '/dev/sde', 'host': 0, 'channel': 0, 'id': 0, 'lun': 1}, {'device': '/dev/sdf', 'host': 2, 'channel': 0, 'id': 0, 'lun': 1}, ] info = {"device": "dm-3", "id": "350002ac20398383d", "devices": devices} return info self.stubs.Set(os.path, "exists", lambda x: True) self.stubs.Set(self.linuxscsi, 'find_multipath_device', fake_find_multipath_device) self.linuxscsi.remove_multipath_device('/dev/dm-3') expected_commands = [('tee -a /sys/block/sde/device/delete'), ('tee -a /sys/block/sdf/device/delete'), ('multipath -f 350002ac20398383d'), ] self.assertEqual(expected_commands, self.cmds)
**** CubicPower OpenStack Study **** def test_find_multipath_device_3par(self): def fake_execute(*cmd, **kwargs): out = ("mpath6 (350002ac20398383d) dm-3 3PARdata,VV\n" "size=2.0G features='0' hwhandler='0' wp=rw\n" "`-+- policy='round-robin 0' prio=-1 status=active\n" " |- 0:0:0:1 sde 8:64 active undef running\n" " `- 2:0:0:1 sdf 8:80 active undef running\n" ) return out, None def fake_execute2(*cmd, **kwargs): out = ("350002ac20398383d dm-3 3PARdata,VV\n" "size=2.0G features='0' hwhandler='0' wp=rw\n" "`-+- policy='round-robin 0' prio=-1 status=active\n" " |- 0:0:0:1 sde 8:64 active undef running\n" " `- 2:0:0:1 sdf 8:80 active undef running\n" ) return out, None self.stubs.Set(self.linuxscsi, '_execute', fake_execute) info = self.linuxscsi.find_multipath_device('/dev/sde') LOG.error("info = %s" % info) self.assertEqual("/dev/dm-3", info["device"]) self.assertEqual("/dev/sde", info['devices'][0]['device']) self.assertEqual("0", info['devices'][0]['host']) self.assertEqual("0", info['devices'][0]['id']) self.assertEqual("0", info['devices'][0]['channel']) self.assertEqual("1", info['devices'][0]['lun']) self.assertEqual("/dev/sdf", info['devices'][1]['device']) self.assertEqual("2", info['devices'][1]['host']) self.assertEqual("0", info['devices'][1]['id']) self.assertEqual("0", info['devices'][1]['channel']) self.assertEqual("1", info['devices'][1]['lun'])
**** CubicPower OpenStack Study **** def fake_execute(*cmd, **kwargs): out = ("mpath6 (350002ac20398383d) dm-3 3PARdata,VV\n" "size=2.0G features='0' hwhandler='0' wp=rw\n" "`-+- policy='round-robin 0' prio=-1 status=active\n" " |- 0:0:0:1 sde 8:64 active undef running\n" " `- 2:0:0:1 sdf 8:80 active undef running\n" ) return out, None
**** CubicPower OpenStack Study **** def fake_execute2(*cmd, **kwargs): out = ("350002ac20398383d dm-3 3PARdata,VV\n" "size=2.0G features='0' hwhandler='0' wp=rw\n" "`-+- policy='round-robin 0' prio=-1 status=active\n" " |- 0:0:0:1 sde 8:64 active undef running\n" " `- 2:0:0:1 sdf 8:80 active undef running\n" ) return out, None self.stubs.Set(self.linuxscsi, '_execute', fake_execute) info = self.linuxscsi.find_multipath_device('/dev/sde') LOG.error("info = %s" % info) self.assertEqual("/dev/dm-3", info["device"]) self.assertEqual("/dev/sde", info['devices'][0]['device']) self.assertEqual("0", info['devices'][0]['host']) self.assertEqual("0", info['devices'][0]['id']) self.assertEqual("0", info['devices'][0]['channel']) self.assertEqual("1", info['devices'][0]['lun']) self.assertEqual("/dev/sdf", info['devices'][1]['device']) self.assertEqual("2", info['devices'][1]['host']) self.assertEqual("0", info['devices'][1]['id']) self.assertEqual("0", info['devices'][1]['channel']) self.assertEqual("1", info['devices'][1]['lun'])
**** CubicPower OpenStack Study **** def test_find_multipath_device_svc(self): def fake_execute(*cmd, **kwargs): out = ("36005076da00638089c000000000004d5 dm-2 IBM,2145\n" "size=954M features='1 queue_if_no_path' hwhandler='0'" " wp=rw\n" "|-+- policy='round-robin 0' prio=-1 status=active\n" "| |- 6:0:2:0 sde 8:64 active undef running\n" "| `- 6:0:4:0 sdg 8:96 active undef running\n" "`-+- policy='round-robin 0' prio=-1 status=enabled\n" " |- 6:0:3:0 sdf 8:80 active undef running\n" " `- 6:0:5:0 sdh 8:112 active undef running\n" ) return out, None self.stubs.Set(self.linuxscsi, '_execute', fake_execute) info = self.linuxscsi.find_multipath_device('/dev/sde') LOG.error("info = %s" % info) self.assertEqual("/dev/dm-2", info["device"]) self.assertEqual("/dev/sde", info['devices'][0]['device']) self.assertEqual("6", info['devices'][0]['host']) self.assertEqual("0", info['devices'][0]['channel']) self.assertEqual("2", info['devices'][0]['id']) self.assertEqual("0", info['devices'][0]['lun']) self.assertEqual("/dev/sdf", info['devices'][2]['device']) self.assertEqual("6", info['devices'][2]['host']) self.assertEqual("0", info['devices'][2]['channel']) self.assertEqual("3", info['devices'][2]['id']) self.assertEqual("0", info['devices'][2]['lun'])
**** CubicPower OpenStack Study **** def fake_execute(*cmd, **kwargs): out = ("36005076da00638089c000000000004d5 dm-2 IBM,2145\n" "size=954M features='1 queue_if_no_path' hwhandler='0'" " wp=rw\n" "|-+- policy='round-robin 0' prio=-1 status=active\n" "| |- 6:0:2:0 sde 8:64 active undef running\n" "| `- 6:0:4:0 sdg 8:96 active undef running\n" "`-+- policy='round-robin 0' prio=-1 status=enabled\n" " |- 6:0:3:0 sdf 8:80 active undef running\n" " `- 6:0:5:0 sdh 8:112 active undef running\n" ) return out, None self.stubs.Set(self.linuxscsi, '_execute', fake_execute) info = self.linuxscsi.find_multipath_device('/dev/sde') LOG.error("info = %s" % info) self.assertEqual("/dev/dm-2", info["device"]) self.assertEqual("/dev/sde", info['devices'][0]['device']) self.assertEqual("6", info['devices'][0]['host']) self.assertEqual("0", info['devices'][0]['channel']) self.assertEqual("2", info['devices'][0]['id']) self.assertEqual("0", info['devices'][0]['lun']) self.assertEqual("/dev/sdf", info['devices'][2]['device']) self.assertEqual("6", info['devices'][2]['host']) self.assertEqual("0", info['devices'][2]['channel']) self.assertEqual("3", info['devices'][2]['id']) self.assertEqual("0", info['devices'][2]['lun'])
**** CubicPower OpenStack Study **** def test_find_multipath_device_ds8000(self): def fake_execute(*cmd, **kwargs): out = ("36005076303ffc48e0000000000000101 dm-2 IBM,2107900\n" "size=1.0G features='1 queue_if_no_path' hwhandler='0'" " wp=rw\n" "`-+- policy='round-robin 0' prio=-1 status=active\n" " |- 6:0:2:0 sdd 8:64 active undef running\n" " `- 6:1:0:3 sdc 8:32 active undef running\n" ) return out, None self.stubs.Set(self.linuxscsi, '_execute', fake_execute) info = self.linuxscsi.find_multipath_device('/dev/sdd') LOG.error("info = %s" % info) self.assertEqual("/dev/dm-2", info["device"]) self.assertEqual("/dev/sdd", info['devices'][0]['device']) self.assertEqual("6", info['devices'][0]['host']) self.assertEqual("0", info['devices'][0]['channel']) self.assertEqual("2", info['devices'][0]['id']) self.assertEqual("0", info['devices'][0]['lun']) self.assertEqual("/dev/sdc", info['devices'][1]['device']) self.assertEqual("6", info['devices'][1]['host']) self.assertEqual("1", info['devices'][1]['channel']) self.assertEqual("0", info['devices'][1]['id']) self.assertEqual("3", info['devices'][1]['lun'])
**** CubicPower OpenStack Study **** def fake_execute(*cmd, **kwargs): out = ("36005076303ffc48e0000000000000101 dm-2 IBM,2107900\n" "size=1.0G features='1 queue_if_no_path' hwhandler='0'" " wp=rw\n" "`-+- policy='round-robin 0' prio=-1 status=active\n" " |- 6:0:2:0 sdd 8:64 active undef running\n" " `- 6:1:0:3 sdc 8:32 active undef running\n" ) return out, None self.stubs.Set(self.linuxscsi, '_execute', fake_execute) info = self.linuxscsi.find_multipath_device('/dev/sdd') LOG.error("info = %s" % info) self.assertEqual("/dev/dm-2", info["device"]) self.assertEqual("/dev/sdd", info['devices'][0]['device']) self.assertEqual("6", info['devices'][0]['host']) self.assertEqual("0", info['devices'][0]['channel']) self.assertEqual("2", info['devices'][0]['id']) self.assertEqual("0", info['devices'][0]['lun']) self.assertEqual("/dev/sdc", info['devices'][1]['device']) self.assertEqual("6", info['devices'][1]['host']) self.assertEqual("1", info['devices'][1]['channel']) self.assertEqual("0", info['devices'][1]['id']) self.assertEqual("3", info['devices'][1]['lun'])
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