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import unittest
import os
import overrides_hack
import shutil
from utils import create_sparse_tempfile, create_lio_device, delete_lio_device, fake_utils, fake_path, get_version, TestTags, tag_test, required_plugins
import gi
gi.require_version('GLib', '2.0')
gi.require_version('BlockDev', '3.0')
from gi.repository import GLib, BlockDev
@required_plugins(("mpath",))
class MpathTest(unittest.TestCase):
requested_plugins = BlockDev.plugin_specs_from_names(("mpath",))
@classmethod
def setUpClass(cls):
if not BlockDev.is_initialized():
BlockDev.init(cls.requested_plugins, None)
else:
BlockDev.reinit(cls.requested_plugins, True, None)
class MpathTestCase(MpathTest):
def setUp(self):
self.addCleanup(self._clean_up)
self.dev_file = create_sparse_tempfile("mpath_test", 1024**3)
try:
self.loop_dev = create_lio_device(self.dev_file)
except RuntimeError as e:
raise RuntimeError("Failed to setup loop device for testing: %s" % e)
def _clean_up(self):
try:
delete_lio_device(self.loop_dev)
except RuntimeError:
# just move on, we can do no better here
pass
os.unlink(self.dev_file)
def test_is_mpath_member(self):
"""Verify that is_mpath_member works as expected"""
# just test that some non-mpath is not reported as a multipath member
# device and no error is reported
self.assertFalse(BlockDev.mpath_is_mpath_member("/dev/loop0"))
class MpathNoDevTestCase(MpathTest):
@tag_test(TestTags.NOSTORAGE)
def test_plugin_version(self):
self.assertEqual(BlockDev.get_plugin_soname(BlockDev.Plugin.MPATH), "libbd_mpath.so.3")
@tag_test(TestTags.NOSTORAGE)
def test_get_mpath_members(self):
"""Verify that get_mpath_members works as expected"""
ret = BlockDev.mpath_get_mpath_members()
self.assertIsNotNone(ret)
@tag_test(TestTags.NOSTORAGE)
def test_set_friendly_names(self):
"""Verify that set_friendly_names works as expected"""
if not shutil.which('mpathconf'):
self.skipTest("skipping The 'mpathconf' utility is not available")
else:
succ = BlockDev.mpath_set_friendly_names(True)
self.assertTrue(succ)
class MpathDepsTest(MpathTest):
@tag_test(TestTags.NOSTORAGE)
def test_missing_dependencies(self):
"""Verify that checking for technology support works as expected"""
with fake_utils("tests/fake_utils/mpath_low_version/"):
with self.assertRaisesRegex(GLib.GError, "Too low version of multipath"):
BlockDev.mpath_is_tech_avail(BlockDev.MpathTech.BASE, BlockDev.MpathTechMode.QUERY)
with fake_path(all_but="multipath"):
with self.assertRaisesRegex(GLib.GError, "The 'multipath' utility is not available"):
BlockDev.mpath_is_tech_avail(BlockDev.MpathTech.BASE, BlockDev.MpathTechMode.QUERY)
with fake_path(all_but="mpathconf"):
# "base" should be available without mpathconf
avail = BlockDev.mpath_is_tech_avail(BlockDev.MpathTech.BASE, BlockDev.MpathTechMode.QUERY)
self.assertTrue(avail)
with self.assertRaisesRegex(GLib.GError, "The 'mpathconf' utility is not available"):
BlockDev.mpath_is_tech_avail(BlockDev.MpathTech.FRIENDLY_NAMES, BlockDev.MpathTechMode.MODIFY)
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