def test_unget_dev(self, mock_loopremove):
tempdir = self.useFixture(fixtures.TempDir()).path
mount = loop.LoopMount(self.file, tempdir)
# This just checks that a free of something we don't have doesn't
# throw an exception
mount.unget_dev()
def test_unget_dev(self):
tempdir = self.useFixture(fixtures.TempDir()).path
l = loop.LoopMount(self.file, tempdir)
self.useFixture(fixtures.MonkeyPatch('nova.utils.execute', _fake_noop))
# This just checks that a free of something we don't have doesn't
# throw an exception
l.unget_dev()
def test_inner_get_dev_fails(self, mock_loopsetup):
tempdir = self.useFixture(fixtures.TempDir()).path
mount = loop.LoopMount(self.file, tempdir)
# No error logged, device consumed
self.assertFalse(mount._inner_get_dev())
self.assertFalse(mount.linked)
self.assertNotEqual('', mount.error)
self.assertIsNone(mount.device)
# Free
mount.unget_dev()
self.assertFalse(mount.linked)
self.assertIsNone(mount.device)
def test_get_dev_timeout(self):
tempdir = self.useFixture(fixtures.TempDir()).path
l = loop.LoopMount(None, tempdir)
self.useFixture(fixtures.MonkeyPatch('time.sleep', _fake_noop))
self.useFixture(fixtures.MonkeyPatch('nova.utils.trycmd',
_fake_trycmd_losetup_fails))
self.useFixture(fixtures.MonkeyPatch(('nova.virt.disk.mount.api.'
'MAX_DEVICE_WAIT'), -10))
# Always fail to get a device
def fake_get_dev_fails():
return False
l._inner_get_dev = fake_get_dev_fails
# Fail to get a device
self.assertFalse(l.get_dev())
def test_inner_get_dev_fails(self):
tempdir = self.useFixture(fixtures.TempDir()).path
l = loop.LoopMount(None, tempdir)
self.useFixture(fixtures.MonkeyPatch('nova.utils.trycmd',
_fake_trycmd_losetup_fails))
# No error logged, device consumed
self.assertFalse(l._inner_get_dev())
self.assertFalse(l.linked)
self.assertNotEqual('', l.error)
self.assertIsNone(l.device)
# Free
l.unget_dev()
self.assertFalse(l.linked)
self.assertIsNone(l.device)
def test_get_dev_timeout(self, mock_loopsetup):
tempdir = self.useFixture(fixtures.TempDir()).path
mount = loop.LoopMount(self.file, tempdir)
self.useFixture(fixtures.MonkeyPatch('time.sleep', _fake_noop))
self.useFixture(
fixtures.MonkeyPatch(('nova.virt.disk.mount.api.'
'MAX_DEVICE_WAIT'), -10))
# Always fail to get a device
def fake_get_dev_fails():
return False
mount._inner_get_dev = fake_get_dev_fails
# Fail to get a device
self.assertFalse(mount.get_dev())
def setup(self):
self.imgdir = tempfile.mkdtemp(prefix="openstack-vfs-localfs")
try:
if self.imgfmt == "raw":
LOG.debug(_("Using LoopMount"))
mount = loop.LoopMount(self.imgfile, self.imgdir,
self.partition)
else:
LOG.debug(_("Using NbdMount"))
mount = nbd.NbdMount(self.imgfile, self.imgdir, self.partition)
if not mount.do_mount():
raise exception.NovaException(mount.error)
self.mount = mount
except Exception as e:
with excutils.save_and_reraise_exception():
LOG.debug(_("Failed to mount image %(ex)s)"), {'ex': str(e)})
self.teardown()
def test_get_dev(self):
tempdir = self.useFixture(fixtures.TempDir()).path
l = loop.LoopMount(self.file, tempdir)
self.useFixture(
fixtures.MonkeyPatch('nova.utils.trycmd',
_fake_trycmd_losetup_works))
self.useFixture(fixtures.MonkeyPatch('nova.utils.execute', _fake_noop))
# No error logged, device consumed
self.assertTrue(l.get_dev())
self.assertTrue(l.linked)
self.assertEqual('', l.error)
self.assertEqual('/dev/loop0', l.device)
# Free
l.unget_dev()
self.assertFalse(l.linked)
self.assertEqual('', l.error)
self.assertIsNone(l.device)
