def test_lvmsnap_shot_device_init(self):
pv = StorageDevice("pv1", fmt=blivet.formats.get_format("lvmpv"),
size=Size("1 GiB"))
vg = LVMVolumeGroupDevice("testvg", parents=[pv])
lv = LVMLogicalVolumeDevice("testlv", parents=[vg],
fmt=blivet.formats.get_format("xfs"))
with self.assertRaisesRegex(ValueError, "lvm snapshot origin must be a logical volume"):
LVMLogicalVolumeDevice("snap1", parents=[vg], origin=pv)
with self.assertRaisesRegex(ValueError, "only existing vorigin snapshots are supported"):
LVMLogicalVolumeDevice("snap1", parents=[vg], vorigin=True)
lv.exists = True
snap1 = LVMLogicalVolumeDevice("snap1", parents=[vg], origin=lv)
self.assertEqual(snap1.format.type, lv.format.type)
lv.format = blivet.formats.get_format("DM_snapshot_cow", exists=True)
self.assertEqual(snap1.format.type, lv.format.type)
self.assertEqual(snap1.isleaf, True)
self.assertEqual(snap1.direct, True)
self.assertEqual(lv.isleaf, False)
self.assertEqual(lv.direct, True)
self.assertEqual(snap1.depends_on(lv), True)
self.assertEqual(lv.depends_on(snap1), False)
def test_lvmsnap_shot_device_init(self):
pv = StorageDevice("pv1",
fmt=blivet.formats.get_format("lvmpv"),
size=Size("1 GiB"))
vg = LVMVolumeGroupDevice("testvg", parents=[pv])
lv = LVMLogicalVolumeDevice("testlv",
parents=[vg],
fmt=blivet.formats.get_format("xfs"))
with self.assertRaisesRegex(
ValueError, "lvm snapshot origin volume must already exist"):
LVMLogicalVolumeDevice("snap1", parents=[vg], origin=lv)
with self.assertRaisesRegex(
ValueError, "lvm snapshot origin must be a logical volume"):
LVMLogicalVolumeDevice("snap1", parents=[vg], origin=pv)
with self.assertRaisesRegex(
ValueError, "only existing vorigin snapshots are supported"):
LVMLogicalVolumeDevice("snap1", parents=[vg], vorigin=True)
lv.exists = True
snap1 = LVMLogicalVolumeDevice("snap1", parents=[vg], origin=lv)
self.assertEqual(snap1.format.type, lv.format.type)
lv.format = blivet.formats.get_format("DM_snapshot_cow", exists=True)
self.assertEqual(snap1.format.type, lv.format.type)
self.assertEqual(snap1.isleaf, True)
self.assertEqual(snap1.direct, True)
self.assertEqual(lv.isleaf, False)
self.assertEqual(lv.direct, True)
self.assertEqual(snap1.depends_on(lv), True)
self.assertEqual(lv.depends_on(snap1), False)
def test_lvmthin_snap_shot_device_init(self):
pv = StorageDevice("pv1", fmt=blivet.formats.get_format("lvmpv"),
size=Size("1 GiB"))
vg = LVMVolumeGroupDevice("testvg", parents=[pv])
pool = LVMLogicalVolumeDevice("pool1", parents=[vg], size=Size("500 MiB"), seg_type="thin-pool")
thinlv = LVMLogicalVolumeDevice("thinlv", parents=[pool], size=Size("200 MiB"), seg_type="thin")
with self.assertRaisesRegex(ValueError, "lvm snapshot origin volume must already exist"):
LVMLogicalVolumeDevice("snap1", parents=[pool], origin=thinlv, seg_type="thin")
with self.assertRaisesRegex(ValueError, "lvm snapshot origin must be a logical volume"):
LVMLogicalVolumeDevice("snap1", parents=[pool], origin=pv, seg_type="thin")
# now make the constructor succeed so we can test some properties
thinlv.exists = True
snap1 = LVMLogicalVolumeDevice("snap1", parents=[pool], origin=thinlv, seg_type="thin")
self.assertEqual(snap1.isleaf, True)
self.assertEqual(snap1.direct, True)
self.assertEqual(thinlv.isleaf, True)
self.assertEqual(thinlv.direct, True)
self.assertEqual(snap1.depends_on(thinlv), True)
self.assertEqual(thinlv.depends_on(snap1), False)
# existing thin snapshots do not depend on their origin
snap1.exists = True
self.assertEqual(snap1.depends_on(thinlv), False)
def test_lvmthin_snap_shot_device_init(self):
pv = StorageDevice("pv1",
fmt=blivet.formats.get_format("lvmpv"),
size=Size("1 GiB"))
vg = LVMVolumeGroupDevice("testvg", parents=[pv])
pool = LVMLogicalVolumeDevice("pool1",
parents=[vg],
size=Size("500 MiB"),
seg_type="thin-pool")
thinlv = LVMLogicalVolumeDevice("thinlv",
parents=[pool],
size=Size("200 MiB"),
seg_type="thin")
with self.assertRaisesRegex(
ValueError, "lvm snapshot origin volume must already exist"):
LVMLogicalVolumeDevice("snap1",
parents=[pool],
origin=thinlv,
seg_type="thin")
with self.assertRaisesRegex(
ValueError, "lvm snapshot origin must be a logical volume"):
LVMLogicalVolumeDevice("snap1",
parents=[pool],
origin=pv,
seg_type="thin")
# now make the constructor succeed so we can test some properties
thinlv.exists = True
snap1 = LVMLogicalVolumeDevice("snap1",
parents=[pool],
origin=thinlv,
seg_type="thin")
self.assertEqual(snap1.isleaf, True)
self.assertEqual(snap1.direct, True)
self.assertEqual(thinlv.isleaf, True)
self.assertEqual(thinlv.direct, True)
self.assertEqual(snap1.depends_on(thinlv), True)
self.assertEqual(thinlv.depends_on(snap1), False)
# existing thin snapshots do not depend on their origin
snap1.exists = True
self.assertEqual(snap1.depends_on(thinlv), False)
