virt-manager/tests/test_cloner.py

212 lines
7.3 KiB
Python

# Copyright (C) 2013, 2015 Red Hat, Inc.
#
# This work is licensed under the GNU GPLv2 or later.
# See the COPYING file in the top-level directory.
import unittest
import os
from tests import utils
from virtinst import Cloner
from virtinst import log
ORIG_NAME = "clone-orig"
CLONE_NAME = "clone-new"
# Create some files to use as test images
FILE1 = "/tmp/virtinst-test1.img"
FILE2 = "/tmp/virtinst-test2.img"
P1_VOL1 = "/dev/default-pool/testvol1.img"
P1_VOL2 = "/dev/default-pool/testvol2.img"
P2_VOL1 = "/dev/cross-pool/testvol1.img"
P2_VOL2 = "/dev/cross-pool/testvol2.img"
POOL1 = "/dev/default-pool"
POOL2 = "/dev/cross-pool"
DISKPOOL = "/dev/disk-pool"
local_files = [FILE1, FILE2]
clonexml_dir = os.path.join(os.getcwd(), "tests/data/clone")
class TestClone(unittest.TestCase):
def setUp(self):
for f in local_files:
open(f, "w").write("")
def tearDown(self):
for f in local_files:
os.unlink(f)
def _clone(self, filebase, disks=None, force_list=None,
skip_list=None, compare=True, conn=None,
clone_disks_file=None):
"""Helper for comparing clone input/output from 2 xml files"""
infile = os.path.join(clonexml_dir, filebase + "-in.xml")
in_content = open(infile).read()
if not conn:
conn = utils.URIs.open_testdriver_cached()
cloneobj = Cloner(conn)
cloneobj.original_xml = in_content
force_list = force_list or []
for force in force_list:
cloneobj.force_target = force
self.assertEqual(cloneobj.force_target, force_list)
cloneobj.force_target = force_list
self.assertEqual(cloneobj.force_target, force_list)
skip_list = skip_list or []
for skip in skip_list:
cloneobj.skip_target = skip
self.assertEqual(cloneobj.skip_target, skip_list)
cloneobj.skip_target = skip_list
self.assertEqual(cloneobj.skip_target, skip_list)
cloneobj = self._default_clone_values(cloneobj, disks)
if compare:
self._clone_compare(cloneobj, filebase,
clone_disks_file=clone_disks_file)
self._clone_define(filebase)
else:
cloneobj.setup_original()
cloneobj.setup_clone()
def _default_clone_values(self, cloneobj, disks=None):
"""Sets default values for the cloned VM."""
cloneobj.clone_name = "clone-new"
uuid = "12345678-1234-1234-1234-123456789012"
cloneobj.clone_uuid = uuid
self.assertEqual(cloneobj.clone_uuid, uuid)
macs = ["22:23:45:67:89:00", "22:23:45:67:89:01"]
cloneobj.clone_macs = macs
self.assertEqual(cloneobj.clone_macs, macs)
if disks is None:
disks = ["/dev/disk-pool/disk-vol1", "/tmp/clone2.img",
"/clone3", "/tmp/clone4.img",
"/tmp/clone5.img", None]
cloneobj.clone_paths = disks
self.assertEqual(cloneobj.clone_paths, disks)
return cloneobj
def _clone_compare(self, cloneobj, outbase, clone_disks_file=None):
"""Helps compare output from passed clone instance with an xml file"""
outfile = os.path.join(clonexml_dir, outbase + "-out.xml")
cloneobj.setup_original()
cloneobj.setup_clone()
utils.diff_compare(cloneobj.clone_xml, outfile)
if clone_disks_file:
xml_clone_disks = ""
for i in cloneobj.clone_disks:
xml_clone_disks += i.get_vol_install().get_xml()
utils.diff_compare(xml_clone_disks, clone_disks_file)
def _clone_define(self, filebase):
"""Take the valid output xml and attempt to define it on the
connection to ensure we don't get any errors"""
outfile = os.path.join(clonexml_dir, filebase + "-out.xml")
outxml = open(outfile).read()
conn = utils.URIs.open_testdriver_cached()
utils.test_create(conn, outxml)
def testRemoteNoStorage(self):
"""Test remote clone where VM has no storage that needs cloning"""
conn = utils.URIs.open_test_remote()
self._clone("nostorage", conn=conn)
self._clone("noclone-storage", conn=conn)
def testRemoteWithStorage(self):
"""
Test remote clone with storage needing cloning. Should fail,
since libvirt has no storage clone api.
"""
conn = utils.URIs.open_test_remote()
disks = ["%s/1.img" % POOL1, "%s/2.img" % POOL1]
try:
self._clone("general-cfg", disks=disks, conn=conn)
# We shouldn't succeed, so test fails
raise AssertionError("Remote clone with storage passed "
"when it shouldn't.")
except (ValueError, RuntimeError) as e:
# Exception expected
log.debug("Received expected exception: %s", str(e))
def testCloneStorageManaged(self):
disks = ["%s/new1.img" % POOL1, "%s/new2.img" % DISKPOOL]
self._clone("managed-storage", disks=disks)
def testCloneStorageCrossPool(self):
conn = utils.URIs.open_test_remote()
clone_disks_file = os.path.join(
clonexml_dir, "cross-pool-disks-out.xml")
disks = ["%s/new1.img" % POOL2, "%s/new2.img" % POOL1]
self._clone("cross-pool", disks=disks,
clone_disks_file=clone_disks_file, conn=conn)
def testCloneStorageForce(self):
disks = ["/dev/default-pool/1234.img", None, "/clone2.img"]
self._clone("force", disks=disks, force_list=["hda", "fdb", "sdb"])
def testCloneStorageSkip(self):
disks = ["/dev/default-pool/1234.img", None, "/tmp/clone2.img"]
skip_list = ["hda", "fdb"]
self._clone("skip", disks=disks, skip_list=skip_list)
def testCloneFullPool(self):
with self.assertRaises(Exception):
self._clone("fullpool",
disks=["/full-pool/test.img"], compare=False)
def testCloneNvramAuto(self):
self._clone("nvram-auto")
def testCloneNvramNewpool(self):
self._clone("nvram-newpool")
def testCloneNvramMissing(self):
self._clone("nvram-missing")
def testCloneGraphicsPassword(self):
self._clone("graphics-password")
def testCloneChannelSource(self):
self._clone("channel-source")
def testCloneMisc(self):
conn = utils.URIs.open_testdriver_cached()
with self.assertRaises(RuntimeError) as err:
cloner = Cloner(conn)
# Add this bit here for coverage testing
cloner.clone_xml = None
cloner.setup_original()
self.assertTrue("Original guest name or XML" in str(err.exception))
with self.assertRaises(RuntimeError) as err:
cloner = Cloner(conn)
cloner.original_guest = "test-snapshots"
cloner.setup_original()
self.assertTrue("must be shutoff" in str(err.exception))
with self.assertRaises(ValueError) as err:
cloner = Cloner(conn)
cloner.original_guest = "test-clone-simple"
cloner.setup_original()
cloner.setup_clone()
self.assertTrue("More disks to clone" in str(err.exception))
cloner = Cloner(conn)
self.assertEqual(
cloner.generate_clone_name("test-clone5"), "test-clone6")