qubes-installer-qubes-os/anaconda/tests/storage_test/storagetestcase.py
2013-01-24 01:45:53 +01:00

288 lines
11 KiB
Python

#!/usr/bin/python
import unittest
from mock import Mock
from mock import TestCase
import parted
import pyanaconda.anaconda_log
pyanaconda.anaconda_log.init()
import pyanaconda.iutil
import pyanaconda.storage as storage
from pyanaconda.storage.formats import getFormat
# device classes for brevity's sake -- later on, that is
from pyanaconda.storage.devices import StorageDevice
from pyanaconda.storage.devices import DiskDevice
from pyanaconda.storage.devices import PartitionDevice
from pyanaconda.storage.devices import MDRaidArrayDevice
from pyanaconda.storage.devices import DMDevice
from pyanaconda.storage.devices import LUKSDevice
from pyanaconda.storage.devices import LVMVolumeGroupDevice
from pyanaconda.storage.devices import LVMLogicalVolumeDevice
from pyanaconda.storage.devices import FileDevice
class StorageTestCase(TestCase):
""" StorageTestCase
This is a base class for storage test cases. It sets up imports of
the storage package, along with an Anaconda instance and a Storage
instance. There are lots of little patches to prevent various pieces
of code from trying to access filesystems and/or devices on the host
system, along with a couple of convenience methods.
"""
def __init__(self, *args, **kwargs):
TestCase.__init__(self, *args, **kwargs)
self.setUpAnaconda()
def setUpAnaconda(self):
pyanaconda.iutil.execWithRedirect = Mock()
pyanaconda.iutil.execWithCapture = Mock()
pyanaconda.iutil.execWithPulseProgress = Mock()
pyanaconda.baseudev = Mock()
self.anaconda = Mock()
self.setUpStorage()
def setUpStorage(self):
self.setUpDeviceLibs()
self.storage = storage.Storage(self.anaconda)
# device status
pyanaconda.storage.devices.StorageDevice.status = False
pyanaconda.storage.devices.DMDevice.status = False
pyanaconda.storage.devices.LUKSDevice.status = False
pyanaconda.storage.devices.LVMVolumeGroupDevice.status = False
pyanaconda.storage.devices.MDRaidArrayDevice.status = False
pyanaconda.storage.devices.FileDevice.status = False
# prevent PartitionDevice from trying to dig around in the partition's
# geometry
pyanaconda.storage.devices.PartitionDevice._setTargetSize = StorageDevice._setTargetSize
# prevent Ext2FS from trying to run resize2fs to get a filesystem's
# minimum size
storage.formats.fs.Ext2FS.minSize = storage.formats.DeviceFormat.minSize
storage.formats.fs.FS.migratable = storage.formats.DeviceFormat.migratable
def setUpDeviceLibs(self):
# devicelibs shouldn't be touching or looking at the host system
# lvm is easy because all calls to /sbin/lvm are via lvm()
storage.devicelibs.lvm.lvm = Mock()
# mdraid is easy because all calls to /sbin/mdadm are via mdadm()
storage.devicelibs.mdraid.mdadm = Mock()
# swap
storage.devicelibs.swap.swapstatus = Mock(return_value=False)
storage.devicelibs.swap.swapon = Mock()
storage.devicelibs.swap.swapoff = Mock()
# dm
storage.devicelibs.dm = Mock()
# crypto/luks
storage.devicelibs.crypto.luks_status = Mock(return_value=False)
storage.devicelibs.crypto.luks_uuid = Mock()
storage.devicelibs.crypto.luks_format = Mock()
storage.devicelibs.crypto.luks_open = Mock()
storage.devicelibs.crypto.luks_close = Mock()
storage.devicelibs.crypto.luks_add_key = Mock()
storage.devicelibs.crypto.luks_remove_key = Mock()
# this list would normally be obtained by parsing /proc/mdstat
storage.devicelibs.mdraid.raid_levels = \
[storage.devicelibs.mdraid.RAID10,
storage.devicelibs.mdraid.RAID0,
storage.devicelibs.mdraid.RAID1,
storage.devicelibs.mdraid.RAID4,
storage.devicelibs.mdraid.RAID5,
storage.devicelibs.mdraid.RAID6]
def newDevice(*args, **kwargs):
""" Return a new Device instance suitable for testing. """
args = args[1:] # drop self arg
device_class = kwargs.pop("device_class")
exists = kwargs.pop("exists", False)
part_type = kwargs.pop("part_type", parted.PARTITION_NORMAL)
device = device_class(*args, **kwargs)
if exists:
# set up mock parted.Device w/ correct size
device._partedDevice = Mock()
device._partedDevice.getSize = Mock(return_value=float(device.size))
device._partedDevice.sectorSize = 512
if isinstance(device, pyanaconda.storage.devices.PartitionDevice):
#if exists:
# device.parents = device.req_disks
device.parents = device.req_disks
partedPartition = Mock()
if device.disk:
part_num = device.name[len(device.disk.name):].split("p")[-1]
partedPartition.number = int(part_num)
partedPartition.type = part_type
partedPartition.path = device.path
partedPartition.getDeviceNodeName = Mock(return_value=device.name)
partedPartition.getSize = Mock(return_value=float(device.size))
device._partedPartition = partedPartition
device.exists = exists
device.format.exists = exists
if isinstance(device, pyanaconda.storage.devices.PartitionDevice):
# PartitionDevice.probe sets up data needed for resize operations
device.probe()
return device
def newFormat(*args, **kwargs):
""" Return a new DeviceFormat instance suitable for testing.
Keyword Arguments:
device_instance - StorageDevice instance this format will be
created on. This is needed for setup of
resizable formats.
All other arguments are passed directly to
pyanaconda.storage.formats.getFormat.
"""
args = args[1:] # drop self arg
exists = kwargs.pop("exists", False)
device_instance = kwargs.pop("device_instance", None)
format = getFormat(*args, **kwargs)
if isinstance(format, storage.formats.disklabel.DiskLabel):
format._partedDevice = Mock()
format._partedDisk = Mock()
format.exists = exists
if format.resizable and device_instance:
format._size = device_instance.currentSize
return format
def destroyAllDevices(self, disks=None):
""" Remove all devices from the devicetree.
Keyword Arguments:
disks - a list of names of disks to remove partitions from
Note: this is largely ripped off from partitioning.clearPartitions.
"""
partitions = self.storage.partitions
# Sort partitions by descending partition number to minimize confusing
# things like multiple "destroy sda5" actions due to parted renumbering
# partitions. This can still happen through the UI but it makes sense to
# avoid it where possible.
partitions.sort(key=lambda p: p.partedPartition.number, reverse=True)
for part in partitions:
if disks and part.disk.name not in disks:
continue
devices = self.storage.deviceDeps(part)
while devices:
leaves = [d for d in devices if d.isleaf]
for leaf in leaves:
self.storage.destroyDevice(leaf)
devices.remove(leaf)
self.storage.destroyDevice(part)
def scheduleCreateDevice(self, *args, **kwargs):
""" Schedule an action to create the specified device.
Verify that the device is not already in the tree and that the
act of scheduling/registering the action also adds the device to
the tree.
Return the DeviceAction instance.
"""
device = kwargs.pop("device")
if hasattr(device, "req_disks") and \
len(device.req_disks) == 1 and \
not device.parents:
device.parents = device.req_disks
devicetree = self.storage.devicetree
self.assertEqual(devicetree.getDeviceByName(device.name), None)
action = storage.deviceaction.ActionCreateDevice(device)
devicetree.registerAction(action)
self.assertEqual(devicetree.getDeviceByName(device.name), device)
return action
def scheduleDestroyDevice(self, *args, **kwargs):
""" Schedule an action to destroy the specified device.
Verify that the device exists initially and that the act of
scheduling/registering the action also removes the device from
the tree.
Return the DeviceAction instance.
"""
device = kwargs.pop("device")
devicetree = self.storage.devicetree
self.assertEqual(devicetree.getDeviceByName(device.name), device)
action = storage.deviceaction.ActionDestroyDevice(device)
devicetree.registerAction(action)
self.assertEqual(devicetree.getDeviceByName(device.name), None)
return action
def scheduleCreateFormat(self, *args, **kwargs):
""" Schedule an action to write a new format to a device.
Verify that the device is already in the tree, that it is not
already set up to contain the specified format, and that the act
of registering/scheduling the action causes the new format to be
reflected in the tree.
Return the DeviceAction instance.
"""
device = kwargs.pop("device")
format = kwargs.pop("format")
devicetree = self.storage.devicetree
self.assertNotEqual(device.format, format)
self.assertEqual(devicetree.getDeviceByName(device.name), device)
action = storage.deviceaction.ActionCreateFormat(device, format)
devicetree.registerAction(action)
_device = devicetree.getDeviceByName(device.name)
self.assertEqual(_device.format, format)
return action
def scheduleDestroyFormat(self, *args, **kwargs):
""" Schedule an action to remove a format from a device.
Verify that the device is already in the tree and that the act
of registering/scheduling the action causes the new format to be
reflected in the tree.
Return the DeviceAction instance.
"""
device = kwargs.pop("device")
devicetree = self.storage.devicetree
self.assertEqual(devicetree.getDeviceByName(device.name), device)
action = storage.deviceaction.ActionDestroyFormat(device)
devicetree.registerAction(action)
_device = devicetree.getDeviceByName(device.name)
self.assertEqual(_device.format.type, None)
return action