def testActionCreation(self):
""" Verify correct operation of action class constructors. """
# instantiation of device resize action for non-existent device should
# fail
# XXX resizable depends on existence, so this is covered implicitly
sdd = self.storage.devicetree.getDeviceByName("sdd")
p = self.newDevice(device_class=PartitionDevice, name="sdd1", size=Size("32 GiB"), parents=[sdd])
with self.assertRaises(ValueError):
ActionResizeDevice(p, p.size + Size("7232 MiB"))
# instantiation of device resize action for non-resizable device
# should fail
vg = self.storage.devicetree.getDeviceByName("VolGroup")
self.assertNotEqual(vg, None)
with self.assertRaises(ValueError):
ActionResizeDevice(vg, vg.size + Size("32 MiB"))
# instantiation of format resize action for non-resizable format type
# should fail
lv_swap = self.storage.devicetree.getDeviceByName("VolGroup-lv_swap")
self.assertNotEqual(lv_swap, None)
with self.assertRaises(ValueError):
ActionResizeFormat(lv_swap, lv_swap.size + Size("32 MiB"))
# instantiation of format resize action for non-existent format
# should fail
lv_root = self.storage.devicetree.getDeviceByName("VolGroup-lv_root")
self.assertNotEqual(lv_root, None)
lv_root.format.exists = False
with self.assertRaises(ValueError):
ActionResizeFormat(lv_root, lv_root.size - Size("1000 MiB"))
lv_root.format.exists = True
# instantiation of device create action for existing device should
# fail
lv_swap = self.storage.devicetree.getDeviceByName("VolGroup-lv_swap")
self.assertNotEqual(lv_swap, None)
self.assertEqual(lv_swap.exists, True)
with self.assertRaises(ValueError):
ActionCreateDevice(lv_swap)
# instantiation of format destroy action for device causes device's
# format attribute to be a DeviceFormat instance
lv_swap = self.storage.devicetree.getDeviceByName("VolGroup-lv_swap")
self.assertNotEqual(lv_swap, None)
orig_format = lv_swap.format
self.assertEqual(lv_swap.format.type, "swap")
destroy_swap = ActionDestroyFormat(lv_swap)
self.assertEqual(lv_swap.format.type, "swap")
destroy_swap.apply()
self.assertEqual(lv_swap.format.type, None)
# instantiation of format create action for device causes new format
# to be accessible via device's format attribute
new_format = getFormat("vfat", device=lv_swap.path)
create_swap = ActionCreateFormat(lv_swap, new_format)
self.assertEqual(lv_swap.format.type, None)
create_swap.apply()
self.assertEqual(lv_swap.format, new_format)
lv_swap.format = orig_format
def testActionObsoletes(self):
""" Verify correct operation of DeviceAction.obsoletes. """
self.destroyAllDevices(disks=["sdc"])
sdc = self.storage.devicetree.getDeviceByName("sdc")
self.assertNotEqual(sdc, None)
sdc1 = self.newDevice(device_class=PartitionDevice, name="sdc1", parents=[sdc], size=Size("40 GiB"))
# ActionCreateDevice
#
# - obsoletes other ActionCreateDevice instances w/ lower id and same
# device
create_device_1 = ActionCreateDevice(sdc1)
create_device_1.apply()
create_device_2 = ActionCreateDevice(sdc1)
create_device_2.apply()
self.assertEqual(create_device_2.obsoletes(create_device_1), True)
self.assertEqual(create_device_1.obsoletes(create_device_2), False)
# ActionCreateFormat
#
# - obsoletes other ActionCreateFormat instances w/ lower id and same
# device
format_1 = self.newFormat("ext3", mountpoint="/home", device=sdc1.path)
format_2 = self.newFormat("ext3", mountpoint="/opt", device=sdc1.path)
create_format_1 = ActionCreateFormat(sdc1, format_1)
create_format_1.apply()
create_format_2 = ActionCreateFormat(sdc1, format_2)
create_format_2.apply()
self.assertEqual(create_format_2.obsoletes(create_format_1), True)
self.assertEqual(create_format_1.obsoletes(create_format_2), False)
# ActionResizeFormat
#
# - obsoletes other ActionResizeFormat instances w/ lower id and same
# device
sdc1.exists = True
sdc1.format.exists = True
sdc1.format._resizable = True
resize_format_1 = ActionResizeFormat(sdc1, sdc1.size - Size("1000 MiB"))
resize_format_1.apply()
resize_format_2 = ActionResizeFormat(sdc1, sdc1.size - Size("5000 MiB"))
resize_format_2.apply()
self.assertEqual(resize_format_2.obsoletes(resize_format_1), True)
self.assertEqual(resize_format_1.obsoletes(resize_format_2), False)
sdc1.exists = False
sdc1.format.exists = False
# ActionCreateFormat
#
# - obsoletes resize format actions w/ lower id on same device
new_format = self.newFormat("ext4", mountpoint="/foo", device=sdc1.path)
create_format_3 = ActionCreateFormat(sdc1, new_format)
create_format_3.apply()
self.assertEqual(create_format_3.obsoletes(resize_format_1), True)
self.assertEqual(create_format_3.obsoletes(resize_format_2), True)
# ActionResizeDevice
#
# - obsoletes other ActionResizeDevice instances w/ lower id and same
# device
sdc1.exists = True
sdc1.format.exists = True
sdc1.format._resizable = True
resize_device_1 = ActionResizeDevice(sdc1, sdc1.size + Size("10 GiB"))
resize_device_1.apply()
resize_device_2 = ActionResizeDevice(sdc1, sdc1.size - Size("10 GiB"))
resize_device_2.apply()
self.assertEqual(resize_device_2.obsoletes(resize_device_1), True)
self.assertEqual(resize_device_1.obsoletes(resize_device_2), False)
sdc1.exists = False
sdc1.format.exists = False
# ActionDestroyFormat
#
# - obsoletes all format actions w/ higher id on same device (including
# self if format does not exist)
destroy_format_1 = ActionDestroyFormat(sdc1)
destroy_format_1.apply()
destroy_format_2 = ActionDestroyFormat(sdc1)
destroy_format_2.apply()
self.assertEqual(destroy_format_1.obsoletes(create_format_1), True)
self.assertEqual(destroy_format_1.obsoletes(resize_format_1), True)
self.assertEqual(destroy_format_1.obsoletes(destroy_format_1), True)
self.assertEqual(destroy_format_2.obsoletes(destroy_format_1), False)
self.assertEqual(destroy_format_1.obsoletes(destroy_format_2), True)
# ActionDestroyDevice
#
# - obsoletes all actions w/ lower id that act on the same non-existent
# device (including self)
# sdc1 does not exist
destroy_sdc1 = ActionDestroyDevice(sdc1)
destroy_sdc1.apply()
self.assertEqual(destroy_sdc1.obsoletes(create_format_2), True)
self.assertEqual(destroy_sdc1.obsoletes(resize_format_2), True)
self.assertEqual(destroy_sdc1.obsoletes(create_device_1), True)
self.assertEqual(destroy_sdc1.obsoletes(resize_device_1), True)
self.assertEqual(destroy_sdc1.obsoletes(destroy_sdc1), True)
# ActionDestroyDevice
#
# - obsoletes all but ActionDestroyFormat actions w/ lower id on the
# same existing device
# sda1 exists
sda1 = self.storage.devicetree.getDeviceByName("sda1")
self.assertNotEqual(sda1, None)
# sda1.format._resizable = True
resize_sda1_format = ActionResizeFormat(sda1, sda1.size - Size("50 MiB"))
resize_sda1_format.apply()
resize_sda1 = ActionResizeDevice(sda1, sda1.size - Size("50 MiB"))
resize_sda1.apply()
destroy_sda1_format = ActionDestroyFormat(sda1)
destroy_sda1_format.apply()
destroy_sda1 = ActionDestroyDevice(sda1)
destroy_sda1.apply()
self.assertEqual(destroy_sda1.obsoletes(resize_sda1_format), True)
self.assertEqual(destroy_sda1.obsoletes(resize_sda1), True)
self.assertEqual(destroy_sda1.obsoletes(destroy_sda1), False)
self.assertEqual(destroy_sda1.obsoletes(destroy_sda1_format), False)
def testActionRegistration(self):
""" Verify correct operation of action registration and cancelling. """
# self.setUp has just been run, so we should have something like
# a preexisting autopart config in the devicetree.
# registering a destroy action for a non-leaf device should fail
vg = self.storage.devicetree.getDeviceByName("VolGroup")
self.assertNotEqual(vg, None)
self.assertEqual(vg.isleaf, False)
a = ActionDestroyDevice(vg)
with self.assertRaises(ValueError):
self.storage.devicetree.registerAction(a)
# registering any action other than create for a device that's not in
# the devicetree should fail
sdc = self.storage.devicetree.getDeviceByName("sdc")
self.assertNotEqual(sdc, None)
sdc1 = self.newDevice(
device_class=PartitionDevice, name="sdc1", size=Size("100 GiB"), parents=[sdc], exists=True
)
sdc1_format = self.newFormat("ext2", device=sdc1.path, mountpoint="/")
create_sdc1_format = ActionCreateFormat(sdc1, sdc1_format)
create_sdc1_format.apply()
with self.assertRaises(blivet.errors.DeviceTreeError):
self.storage.devicetree.registerAction(create_sdc1_format)
sdc1_format.exists = True
sdc1_format._resizable = True
resize_sdc1_format = ActionResizeFormat(sdc1, sdc1.size - Size("10 GiB"))
resize_sdc1_format.apply()
with self.assertRaises(blivet.errors.DeviceTreeError):
self.storage.devicetree.registerAction(resize_sdc1_format)
resize_sdc1 = ActionResizeDevice(sdc1, sdc1.size - Size("10 GiB"))
resize_sdc1.apply()
with self.assertRaises(blivet.errors.DeviceTreeError):
self.storage.devicetree.registerAction(resize_sdc1)
resize_sdc1.cancel()
resize_sdc1_format.cancel()
destroy_sdc1_format = ActionDestroyFormat(sdc1)
with self.assertRaises(blivet.errors.DeviceTreeError):
self.storage.devicetree.registerAction(destroy_sdc1_format)
destroy_sdc1 = ActionDestroyDevice(sdc1)
with self.assertRaises(blivet.errors.DeviceTreeError):
self.storage.devicetree.registerAction(destroy_sdc1)
# registering a device destroy action should cause the device to be
# removed from the devicetree
lv_root = self.storage.devicetree.getDeviceByName("VolGroup-lv_root")
self.assertNotEqual(lv_root, None)
a = ActionDestroyDevice(lv_root)
self.storage.devicetree.registerAction(a)
lv_root = self.storage.devicetree.getDeviceByName("VolGroup-lv_root")
self.assertEqual(lv_root, None)
self.storage.devicetree.cancelAction(a)
# registering a device create action should cause the device to be
# added to the devicetree
sdd = self.storage.devicetree.getDeviceByName("sdd")
self.assertNotEqual(sdd, None)
sdd1 = self.storage.devicetree.getDeviceByName("sdd1")
self.assertEqual(sdd1, None)
sdd1 = self.newDevice(device_class=PartitionDevice, name="sdd1", size=Size("100 GiB"), parents=[sdd])
a = ActionCreateDevice(sdd1)
self.storage.devicetree.registerAction(a)
sdd1 = self.storage.devicetree.getDeviceByName("sdd1")
self.assertNotEqual(sdd1, None)