def test_get_related_disks(self):
tree = DeviceTree()
sda = DiskDevice("sda", size=Size('300g'))
sdb = DiskDevice("sdb", size=Size('300g'))
sdc = DiskDevice("sdc", size=Size('300G'))
tree._add_device(sda)
tree._add_device(sdb)
tree._add_device(sdc)
self.assertTrue(sda in tree.devices)
self.assertTrue(sdb in tree.devices)
self.assertTrue(sdc in tree.devices)
sda.format = get_format("lvmpv", device=sda.path)
sdb.format = get_format("lvmpv", device=sdb.path)
vg = LVMVolumeGroupDevice("relvg", parents=[sda, sdb])
tree._add_device(vg)
self.assertEqual(tree.get_related_disks(sda), set([sda, sdb]))
self.assertEqual(tree.get_related_disks(sdb), set([sda, sdb]))
self.assertEqual(tree.get_related_disks(sdc), set())
tree.hide(sda)
self.assertEqual(tree.get_related_disks(sda), set([sda, sdb]))
self.assertEqual(tree.get_related_disks(sdb), set([sda, sdb]))
tree.hide(sdb)
self.assertEqual(tree.get_related_disks(sda), set([sda, sdb]))
self.assertEqual(tree.get_related_disks(sdb), set([sda, sdb]))
tree.unhide(sda)
self.assertEqual(tree.get_related_disks(sda), set([sda, sdb]))
self.assertEqual(tree.get_related_disks(sdb), set([sda, sdb]))
def test_get_related_disks(self):
tree = DeviceTree()
sda = DiskDevice("sda", size=Size('300g'))
sdb = DiskDevice("sdb", size=Size('300g'))
sdc = DiskDevice("sdc", size=Size('300G'))
tree._add_device(sda)
tree._add_device(sdb)
tree._add_device(sdc)
self.assertTrue(sda in tree.devices)
self.assertTrue(sdb in tree.devices)
self.assertTrue(sdc in tree.devices)
sda.format = get_format("lvmpv", device=sda.path)
sdb.format = get_format("lvmpv", device=sdb.path)
vg = LVMVolumeGroupDevice("relvg", parents=[sda, sdb])
tree._add_device(vg)
self.assertEqual(tree.get_related_disks(sda), set([sda, sdb]))
self.assertEqual(tree.get_related_disks(sdb), set([sda, sdb]))
self.assertEqual(tree.get_related_disks(sdc), set())
tree.hide(sda)
self.assertEqual(tree.get_related_disks(sda), set([sda, sdb]))
self.assertEqual(tree.get_related_disks(sdb), set([sda, sdb]))
tree.hide(sdb)
self.assertEqual(tree.get_related_disks(sda), set([sda, sdb]))
self.assertEqual(tree.get_related_disks(sdb), set([sda, sdb]))
tree.unhide(sda)
self.assertEqual(tree.get_related_disks(sda), set([sda, sdb]))
self.assertEqual(tree.get_related_disks(sdb), set([sda, sdb]))
def test_device_name(self):
# check that devicetree.names property contains all device's names
# mock lvs_info to avoid blockdev call allowing run as non-root
with patch.object(LVsInfo, 'cache',
new_callable=PropertyMock) as mock_lvs_cache:
mock_lvs_cache.return_value = {"sdmock": "dummy"}
tree = DeviceTree()
dev_names = ["sda", "sdb", "sdc"]
for dev_name in dev_names:
dev = DiskDevice(dev_name)
tree._add_device(dev)
self.assertTrue(dev in tree.devices)
# frobnicate a bit with the hidden status of the devices:
# * hide sda
# * hide and unhide again sdb
# * leave sdc unchanged
tree.hide(tree.get_device_by_name("sda"))
tree.hide(tree.get_device_by_name("sdb"))
tree.unhide(tree.get_device_by_name("sdb", hidden=True))
# some lvs names may be already present in the system (mocked)
lv_info = list(lvs_info.cache.keys())
# all devices should still be present in the tree.names
self.assertEqual(sorted(tree.names), sorted(lv_info + dev_names))
def test_device_name(self):
# check that devicetree.names property contains all device's names
# mock lvs_info to avoid blockdev call allowing run as non-root
with patch.object(LVsInfo, 'cache',
new_callable=PropertyMock) as mock_lvs_cache:
mock_lvs_cache.return_value = {
"sdmock": "dummy",
"testvg-testlv": "dummy"
}
tree = DeviceTree()
dev_names = ["sda", "sdb", "sdc"]
for dev_name in dev_names:
dev = DiskDevice(dev_name, size=Size("1 GiB"))
tree._add_device(dev)
self.assertTrue(dev in tree.devices)
self.assertTrue(dev.name in tree.names)
dev.format = get_format("lvmpv", device=dev.path)
vg = LVMVolumeGroupDevice("testvg", parents=[dev])
tree._add_device(vg)
dev_names.append(vg.name)
lv = LVMLogicalVolumeDevice("testlv", parents=[vg])
tree._add_device(lv)
dev_names.append(lv.name)
# frobnicate a bit with the hidden status of the devices:
# * hide sda
# * hide and unhide again sdb
# * leave sdc unchanged
tree.hide(tree.get_device_by_name("sda"))
tree.hide(tree.get_device_by_name("sdb"))
tree.unhide(tree.get_device_by_name("sdb", hidden=True))
# some lvs names may be already present in the system (mocked)
lv_info = list(lvs_info.cache.keys())
# all devices should still be present in the tree.names
self.assertEqual(set(tree.names), set(lv_info + dev_names))
# "remove" the LV, it should no longer be in the list
tree.actions._actions.append(
Mock(device=lv,
type=ACTION_TYPE_DESTROY,
obj=ACTION_OBJECT_DEVICE))
tree._remove_device(lv)
self.assertFalse(lv.name in tree.names)
def test_get_device_by_name(self):
dt = DeviceTree()
dev1 = StorageDevice("dev1", exists=False, parents=[])
dev2 = StorageDevice("dev2", exists=False, parents=[dev1])
dt._add_device(dev1)
dt._add_device(dev2)
self.assertIsNone(dt.get_device_by_name("dev3"))
self.assertEqual(dt.get_device_by_name("dev2"), dev2)
self.assertEqual(dt.get_device_by_name("dev1"), dev1)
dev2.complete = False
self.assertEqual(dt.get_device_by_name("dev2"), None)
self.assertEqual(dt.get_device_by_name("dev2", incomplete=True), dev2)
dev3 = StorageDevice("dev3", exists=True, parents=[])
dt._add_device(dev3)
dt.hide(dev3)
self.assertIsNone(dt.get_device_by_name("dev3"))
self.assertEqual(dt.get_device_by_name("dev3", hidden=True), dev3)
def test_get_device_by_name(self):
dt = DeviceTree()
dev1 = StorageDevice("dev1", exists=False, parents=[])
dev2 = StorageDevice("dev2", exists=False, parents=[dev1])
dt._add_device(dev1)
dt._add_device(dev2)
self.assertIsNone(dt.get_device_by_name("dev3"))
self.assertEqual(dt.get_device_by_name("dev2"), dev2)
self.assertEqual(dt.get_device_by_name("dev1"), dev1)
dev2.complete = False
self.assertEqual(dt.get_device_by_name("dev2"), None)
self.assertEqual(dt.get_device_by_name("dev2", incomplete=True), dev2)
dev3 = StorageDevice("dev3", exists=True, parents=[])
dt._add_device(dev3)
dt.hide(dev3)
self.assertIsNone(dt.get_device_by_name("dev3"))
self.assertEqual(dt.get_device_by_name("dev3", hidden=True), dev3)
