def test_create_snapshot(self):
succ = BlockDev.btrfs_create_volume([self.loop_dev], "myShinyBtrfs",
None, None, None)
self.assertTrue(succ)
mount(self.loop_dev, TEST_MNT)
subvols = BlockDev.btrfs_list_subvolumes(TEST_MNT, True)
self.assertEqual(len(subvols), 0)
# R/W snapshot
succ = BlockDev.btrfs_create_snapshot(TEST_MNT, TEST_MNT + "/snap1",
False, None)
self.assertTrue(succ)
subvols = BlockDev.btrfs_list_subvolumes(TEST_MNT, True)
self.assertEqual(len(subvols), 1)
# RO snapshot
succ = BlockDev.btrfs_create_snapshot(TEST_MNT, TEST_MNT + "/snap2",
True, None)
self.assertTrue(succ)
subvols = BlockDev.btrfs_list_subvolumes(TEST_MNT, True)
self.assertEqual(len(subvols), 2)
def test_create_delete_subvolume(self):
"""Verify that it is possible to create/delete subvolume"""
btrfs_version = self._get_btrfs_version()
if btrfs_version >= LooseVersion('4.13.2'):
self.skipTest('subvolumes list is broken with btrfs-progs v4.13.2')
succ = BlockDev.btrfs_create_volume([self.loop_dev], "myShinyBtrfs",
None, None, None)
self.assertTrue(succ)
mount(self.loop_dev, TEST_MNT)
subvols = BlockDev.btrfs_list_subvolumes(TEST_MNT, False)
self.assertEqual(len(subvols), 0)
succ = BlockDev.btrfs_create_subvolume(TEST_MNT, "subvol1", None)
self.assertTrue(succ)
subvols = BlockDev.btrfs_list_subvolumes(TEST_MNT, False)
self.assertEqual(len(subvols), 1)
# already there
with self.assertRaises(GLib.GError):
BlockDev.btrfs_create_subvolume(TEST_MNT, "subvol1", None)
succ = BlockDev.btrfs_delete_subvolume(TEST_MNT, "subvol1", None)
self.assertTrue(succ)
subvols = BlockDev.btrfs_list_subvolumes(TEST_MNT, False)
self.assertEqual(len(subvols), 0)
# already removed
with self.assertRaises(GLib.GError):
BlockDev.btrfs_delete_subvolume(TEST_MNT, "subvol1", None)
succ = BlockDev.btrfs_create_subvolume(TEST_MNT, "subvol1", None)
self.assertTrue(succ)
# add it back
subvols = BlockDev.btrfs_list_subvolumes(TEST_MNT, False)
self.assertEqual(len(subvols), 1)
# and create another subvolume in it
succ = BlockDev.btrfs_create_subvolume(
os.path.join(TEST_MNT, "subvol1"), "subvol1.1", None)
self.assertTrue(succ)
subvols = BlockDev.btrfs_list_subvolumes(TEST_MNT, False)
self.assertEqual(len(subvols), 2)
# make sure subvolumes are sorted properly (parents before children)
seen = set()
for subvol in subvols:
seen.add(subvol)
self.assertTrue(subvol.parent_id == BlockDev.BTRFS_MAIN_VOLUME_ID
or any(subvol.parent_id == other.id
for other in seen))
def test_create_delete_subvolume(self):
"""Verify that it is possible to create/delete subvolume"""
btrfs_version = self._get_btrfs_version()
if btrfs_version >= LooseVersion('4.13.2'):
self.skipTest('subvolumes list is broken with btrfs-progs v4.13.2')
succ = BlockDev.btrfs_create_volume([self.loop_dev], "myShinyBtrfs", None, None, None)
self.assertTrue(succ)
mount(self.loop_dev, TEST_MNT)
subvols = BlockDev.btrfs_list_subvolumes(TEST_MNT, False)
self.assertEqual(len(subvols), 0)
succ = BlockDev.btrfs_create_subvolume(TEST_MNT, "subvol1", None)
self.assertTrue(succ)
subvols = BlockDev.btrfs_list_subvolumes(TEST_MNT, False)
self.assertEqual(len(subvols), 1)
# already there
with self.assertRaises(GLib.GError):
BlockDev.btrfs_create_subvolume(TEST_MNT, "subvol1", None)
succ = BlockDev.btrfs_delete_subvolume(TEST_MNT, "subvol1", None)
self.assertTrue(succ)
subvols = BlockDev.btrfs_list_subvolumes(TEST_MNT, False)
self.assertEqual(len(subvols), 0)
# already removed
with self.assertRaises(GLib.GError):
BlockDev.btrfs_delete_subvolume(TEST_MNT, "subvol1", None)
succ = BlockDev.btrfs_create_subvolume(TEST_MNT, "subvol1", None)
self.assertTrue(succ)
# add it back
subvols = BlockDev.btrfs_list_subvolumes(TEST_MNT, False)
self.assertEqual(len(subvols), 1)
# and create another subvolume in it
succ = BlockDev.btrfs_create_subvolume(os.path.join(TEST_MNT, "subvol1"), "subvol1.1", None)
self.assertTrue(succ)
subvols = BlockDev.btrfs_list_subvolumes(TEST_MNT, False)
self.assertEqual(len(subvols), 2)
# make sure subvolumes are sorted properly (parents before children)
seen = set()
for subvol in subvols:
seen.add(subvol)
self.assertTrue(subvol.parent_id == BlockDev.BTRFS_MAIN_VOLUME_ID or any(subvol.parent_id == other.id for other in seen))
def test_set_default_subvolume(self):
"""Verify that setting default subvolume works as expected"""
succ = BlockDev.btrfs_create_volume([self.loop_dev], "myShinyBtrfs", None, None)
self.assertTrue(succ)
mount(self.loop_dev, TEST_MNT)
ret = BlockDev.btrfs_get_default_subvolume_id(TEST_MNT)
self.assertEqual(ret, 5)
succ = BlockDev.btrfs_create_subvolume(TEST_MNT, "subvol1")
self.assertTrue(succ)
subvols = BlockDev.btrfs_list_subvolumes(TEST_MNT, False)
self.assertEqual(len(subvols), 1)
new_id = next((subvol.id for subvol in subvols), None)
self.assertIsNot(new_id, None)
succ = BlockDev.btrfs_set_default_subvolume(TEST_MNT, new_id)
self.assertTrue(succ)
ret = BlockDev.btrfs_get_default_subvolume_id(TEST_MNT)
self.assertEquals(ret, new_id)
succ = BlockDev.btrfs_set_default_subvolume(TEST_MNT, 5)
self.assertTrue(succ)
ret = BlockDev.btrfs_get_default_subvolume_id(TEST_MNT)
self.assertEquals(ret, 5)
def test_set_default_subvolume(self):
"""Verify that setting default subvolume works as expected"""
succ = BlockDev.btrfs_create_volume([self.loop_dev], "myShinyBtrfs",
None, None, None)
self.assertTrue(succ)
mount(self.loop_dev, TEST_MNT)
ret = BlockDev.btrfs_get_default_subvolume_id(TEST_MNT)
self.assertEqual(ret, 5)
succ = BlockDev.btrfs_create_subvolume(TEST_MNT, "subvol1", None)
self.assertTrue(succ)
subvols = BlockDev.btrfs_list_subvolumes(TEST_MNT, False)
self.assertEqual(len(subvols), 1)
new_id = next((subvol.id for subvol in subvols), None)
self.assertIsNot(new_id, None)
succ = BlockDev.btrfs_set_default_subvolume(TEST_MNT, new_id, None)
self.assertTrue(succ)
ret = BlockDev.btrfs_get_default_subvolume_id(TEST_MNT)
self.assertEqual(ret, new_id)
succ = BlockDev.btrfs_set_default_subvolume(TEST_MNT, 5, None)
self.assertTrue(succ)
ret = BlockDev.btrfs_get_default_subvolume_id(TEST_MNT)
self.assertEqual(ret, 5)
def test_list_subvolumes(self):
"""Verify that it is possible to get info about subvolumes"""
succ = BlockDev.btrfs_create_volume([self.loop_dev], "myShinyBtrfs", None, None)
self.assertTrue(succ)
mount(self.loop_dev, TEST_MNT)
subvols = BlockDev.btrfs_list_subvolumes(TEST_MNT, True)
self.assertEqual(len(subvols), 0)
succ = BlockDev.btrfs_create_subvolume(TEST_MNT, "subvol1")
self.assertTrue(succ)
subvols = BlockDev.btrfs_list_subvolumes(TEST_MNT, False)
self.assertEqual(len(subvols), 1)
self.assertEqual(subvols[0].parent_id, 5)
self.assertEqual(subvols[0].path, "subvol1")
def test_list_subvolumes(self):
"""Verify that it is possible to get info about subvolumes"""
succ = BlockDev.btrfs_create_volume([self.loop_dev], "myShinyBtrfs", None, None, None)
self.assertTrue(succ)
mount(self.loop_dev, TEST_MNT)
subvols = BlockDev.btrfs_list_subvolumes(TEST_MNT, True)
self.assertEqual(len(subvols), 0)
succ = BlockDev.btrfs_create_subvolume(TEST_MNT, "subvol1", None)
self.assertTrue(succ)
subvols = BlockDev.btrfs_list_subvolumes(TEST_MNT, False)
self.assertEqual(len(subvols), 1)
self.assertEqual(subvols[0].parent_id, 5)
self.assertEqual(subvols[0].path, "subvol1")
def test_create_snapshot(self):
succ = BlockDev.btrfs_create_volume([self.loop_dev], "myShinyBtrfs", None, None)
self.assertTrue(succ)
mount(self.loop_dev, TEST_MNT)
subvols = BlockDev.btrfs_list_subvolumes(TEST_MNT, True)
self.assertEqual(len(subvols), 0)
# R/W snapshot
succ = BlockDev.btrfs_create_snapshot(TEST_MNT, TEST_MNT + "/snap1", False)
self.assertTrue(succ)
subvols = BlockDev.btrfs_list_subvolumes(TEST_MNT, True)
self.assertEqual(len(subvols), 1)
# RO snapshot
succ = BlockDev.btrfs_create_snapshot(TEST_MNT, TEST_MNT + "/snap2", True)
self.assertTrue(succ)
subvols = BlockDev.btrfs_list_subvolumes(TEST_MNT, True)
self.assertEqual(len(subvols), 2)
def test_list_subvols_weird_docker_data(self):
"""Verify that list_subvolumes works as expected on weird data from one Docker use case"""
with fake_utils("tests/btrfs_subvols_docker"):
subvols = BlockDev.btrfs_list_subvolumes("fake_dev", False)
# make sure subvolumes are sorted properly (parents before children)
seen = set()
for subvol in subvols:
seen.add(subvol)
self.assertTrue(subvol.parent_id == BlockDev.BTRFS_MAIN_VOLUME_ID or any(subvol.parent_id == other.id for other in seen))
# check that one of the weird subvols is in the list of subvolumes
self.assertTrue(any(subvol for subvol in subvols if subvol.path == "docker/btrfs/subvolumes/f2062b736fbabbe4da752632ac4deae87fcb916add6d7d8f5cecee4cbdc41fd9"))
def test_list_subvols_weird_docker_data(self):
"""Verify that list_subvolumes works as expected on weird data from one Docker use case"""
with fake_utils("tests/btrfs_subvols_docker"):
subvols = BlockDev.btrfs_list_subvolumes("fake_dev", False)
# make sure subvolumes are sorted properly (parents before children)
seen = set()
for subvol in subvols:
seen.add(subvol)
self.assertTrue(subvol.parent_id == BlockDev.BTRFS_MAIN_VOLUME_ID or any(subvol.parent_id == other.id for other in seen))
# check that one of the weird subvols is in the list of subvolumes
self.assertTrue(any(subvol for subvol in subvols if subvol.path == "docker/btrfs/subvolumes/f2062b736fbabbe4da752632ac4deae87fcb916add6d7d8f5cecee4cbdc41fd9"))
