def test_farmfs_mkfs(tmp):
farmfs_ui(['mkfs'], tmp)
meta = Path(".farmfs", tmp)
assert meta.isdir()
userdata = Path("userdata", meta)
assert userdata.isdir()
snaps = Path("snaps", meta)
assert snaps.isdir()
keys = Path("keys", meta)
assert keys.isdir()
def test_create_dir(tmp_path):
a = Path(str(tmp_path)).join('a')
b = a.join('b')
assert a.isdir() == False
assert b.isdir() == False
# Cannot create with missing parents.
with pytest.raises(OSError) as e_info:
b.mkdir()
assert e_info.value.errno == FileDoesNotExist
assert a.isdir() == False
assert b.isdir() == False
# Create a
a.mkdir()
assert a.isdir() == True
assert b.isdir() == False
# idempotent
a.mkdir()
assert a.isdir() == True
assert b.isdir() == False
def test_farmfs_freeze_snap_thaw(tmp_path, parent, child, snap, content, read,
write):
root = Path(str(tmp_path))
r1 = farmfs_ui(['mkfs'], root)
assert r1 == 0
parent_path = Path(parent, root)
child_path = Path(child, parent_path)
parent_path.mkdir()
with child_path.open(write) as child_fd:
child_fd.write(content)
assert parent_path.isdir()
assert child_path.isfile()
r2 = farmfs_ui(['freeze'], root)
assert r2 == 0
assert parent_path.isdir()
assert child_path.islink()
blob = child_path.readlink()
assert blob.isfile()
userdata = Path('.farmfs/userdata', root)
assert userdata in list(blob.parents())
with blob.open(read) as check_fd:
check_content = check_fd.read()
assert check_content == content
r3 = farmfs_ui(['snap', 'make', snap], root)
assert r3 == 0
snap_path = root.join(".farmfs/snap").join(snap)
snap_path.exists()
child_path.unlink()
assert not child_path.exists()
assert blob.isfile()
r4 = farmfs_ui(['snap', 'restore', snap], root)
assert r4 == 0
assert child_path.islink()
assert blob.isfile()
assert child_path.readlink() == blob
r5 = farmfs_ui(['thaw', parent], root)
assert r5 == 0
assert child_path.isfile()
r6 = farmfs_ui(['freeze', child], parent_path)
assert r6 == 0
child_path.islink()
def test_farmfs_freeze_snap_thaw(vol, parent, child, snap, content, read,
write):
parent_path = Path(parent, vol)
child_path = Path(child, parent_path)
parent_path.mkdir()
with child_path.open(write) as child_fd:
child_fd.write(content)
assert parent_path.isdir()
assert child_path.isfile()
r = farmfs_ui(['freeze'], vol)
assert r == 0
assert parent_path.isdir()
assert child_path.islink()
blob = child_path.readlink()
assert blob.isfile()
userdata = Path('.farmfs/userdata', vol)
assert userdata in list(blob.parents())
with blob.open(read) as check_fd:
check_content = check_fd.read()
assert check_content == content
r = farmfs_ui(['snap', 'make', snap], vol)
assert r == 0
snap_path = vol.join(".farmfs/snap").join(snap)
snap_path.exists()
child_path.unlink()
assert not child_path.exists()
assert blob.isfile()
r = farmfs_ui(['snap', 'restore', snap], vol)
assert r == 0
assert child_path.islink()
assert blob.isfile()
assert child_path.readlink() == blob
r = farmfs_ui(['thaw', parent], vol)
assert r == 0
assert child_path.isfile()
r = farmfs_ui(['freeze', child], parent_path)
assert r == 0
child_path.islink()
