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import os
import re
import subprocess
import unittest
from contextlib import contextmanager
from packaging.version import Version
import utils
import overrides_hack
from gi.repository import BlockDev
@contextmanager
def mounted(device, where, ro=False):
utils.mount(device, where, ro)
try:
yield
finally:
utils.umount(where)
def check_output(args, ignore_retcode=True):
"""Just like subprocess.check_output(), but allows the return code of the process to be ignored"""
try:
return subprocess.check_output(args)
except subprocess.CalledProcessError as e:
if ignore_retcode:
return e.output
else:
raise
@utils.required_plugins(("fs", "loop"))
class FSNoDevTestCase(unittest.TestCase):
requested_plugins = BlockDev.plugin_specs_from_names(("fs", "loop"))
@classmethod
def setUpClass(cls):
if not BlockDev.is_initialized():
BlockDev.init(cls.requested_plugins, None)
else:
BlockDev.reinit(cls.requested_plugins, True, None)
try:
cls.ntfs_avail = BlockDev.fs_is_tech_avail(BlockDev.FSTech.NTFS,
BlockDev.FSTechMode.MKFS |
BlockDev.FSTechMode.RESIZE |
BlockDev.FSTechMode.REPAIR |
BlockDev.FSTechMode.CHECK |
BlockDev.FSTechMode.SET_LABEL)
except:
cls.ntfs_avail = False
try:
# check only for mkfs, we have special checks for resize and check
cls.f2fs_avail = BlockDev.fs_is_tech_avail(BlockDev.FSTech.F2FS, BlockDev.FSTechMode.MKFS)
except:
cls.f2fs_avail = False
if not BlockDev.utils_have_kernel_module("f2fs"):
cls.f2fs_avail = False
try:
cls.nilfs2_avail = BlockDev.fs_is_tech_avail(BlockDev.FSTech.NILFS2,
BlockDev.FSTechMode.MKFS |
BlockDev.FSTechMode.RESIZE |
BlockDev.FSTechMode.SET_LABEL)
except:
cls.nilfs2_avail = False
if not BlockDev.utils_have_kernel_module("nilfs2"):
cls.nilfs2_avail = False
try:
cls.exfat_avail = BlockDev.fs_is_tech_avail(BlockDev.FSTech.EXFAT,
BlockDev.FSTechMode.MKFS |
BlockDev.FSTechMode.REPAIR |
BlockDev.FSTechMode.CHECK |
BlockDev.FSTechMode.SET_LABEL)
except:
cls.exfat_avail = False
try:
cls.btrfs_avail = BlockDev.fs_is_tech_avail(BlockDev.FSTech.BTRFS,
BlockDev.FSTechMode.MKFS |
BlockDev.FSTechMode.RESIZE |
BlockDev.FSTechMode.REPAIR |
BlockDev.FSTechMode.CHECK |
BlockDev.FSTechMode.SET_LABEL)
except:
cls.btrfs_avail = False
if not BlockDev.utils_have_kernel_module("btrfs"):
cls.btrfs_avail = False
try:
cls.udf_avail = BlockDev.fs_is_tech_avail(BlockDev.FSTech.UDF,
BlockDev.FSTechMode.MKFS |
BlockDev.FSTechMode.SET_LABEL)
except Exception :
cls.udf_avail = False
class FSTestCase(FSNoDevTestCase):
loop_size = 150 * 1024**2
def setUp(self):
self.addCleanup(self._clean_up)
self.dev_file = utils.create_sparse_tempfile("fs_test", self.loop_size)
self.dev_file2 = utils.create_sparse_tempfile("fs_test", self.loop_size)
try:
self.loop_dev = utils.create_lio_device(self.dev_file)
except RuntimeError as e:
raise RuntimeError("Failed to setup loop device for testing: %s" % e)
try:
self.loop_dev2 = utils.create_lio_device(self.dev_file2)
except RuntimeError as e:
raise RuntimeError("Failed to setup loop device for testing: %s" % e)
def _clean_up(self):
try:
utils.delete_lio_device(self.loop_dev)
except RuntimeError:
# just move on, we can do no better here
pass
os.unlink(self.dev_file)
try:
utils.delete_lio_device(self.loop_dev2)
except RuntimeError:
# just move on, we can do no better here
pass
os.unlink(self.dev_file2)
try:
utils.umount(self.mount_dir)
except:
pass
def setro(self, device):
ret, _out, _err = utils.run_command("blockdev --setro %s" % device)
if ret != 0:
self.fail("Failed to set %s read-only" % device)
def setrw(self, device):
ret, _out, _err = utils.run_command("blockdev --setrw %s" % device)
if ret != 0:
self.fail("Failed to set %s read-write" % device)
def _get_xfs_version(self):
_ret, out, _err = utils.run_command("mkfs.xfs -V")
m = re.search(r"mkfs\.xfs version ([\d\.]+)", out)
if not m or len(m.groups()) != 1:
raise RuntimeError("Failed to determine xfsprogs version from: %s" % out)
return Version(m.groups()[0])
def _destroy_lvm(self, vgname):
utils.run("vgremove --yes %s --config \"devices {use_devicesfile = 0}\" >/dev/null 2>&1" % vgname)
utils.run("pvremove --yes %s --config \"devices {use_devicesfile = 0}\" >/dev/null 2>&1" % self.loop_dev)
def _setup_lvm(self, vgname, lvname, lvsize="50M"):
ret, _out, err = utils.run_command("pvcreate -ff -y %s --config \"devices {use_devicesfile = 0}\"" % self.loop_dev)
if ret != 0:
raise RuntimeError("Failed to create PV for fs tests: %s" % err)
ret, _out, err = utils.run_command("vgcreate -s10M %s %s --config \"devices {use_devicesfile = 0}\"" % (vgname, self.loop_dev))
if ret != 0:
raise RuntimeError("Failed to create VG for fs tests: %s" % err)
self.addCleanup(self._destroy_lvm, vgname)
ret, _out, err = utils.run_command("lvcreate -n %s -L%s %s --config \"devices {use_devicesfile = 0}\"" % (lvname, lvsize, vgname))
if ret != 0:
import pdb; pdb.set_trace()
raise RuntimeError("Failed to create LV for fs tests: %s" % err)
return "/dev/%s/%s" % (vgname, lvname)
def _lvresize(self, vgname, lvname, size):
ret, _out, err = utils.run_command("lvresize -L%s %s/%s --config \"devices {use_devicesfile = 0}\"" % (size, vgname, lvname))
if ret != 0:
raise RuntimeError("Failed to resize LV for fs tests: %s" % err)
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