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# Copyright (C) 2013, 2014 Red Hat, Inc.
#
# This work is licensed under the GNU GPLv2 or later.
# See the COPYING file in the top-level directory.
import difflib
import os
import sys
import unittest
import libvirt
import virtinst
import virtinst.cli
import virtinst.uri
# pylint: disable=protected-access
# Access to protected member, needed to unittest stuff
class _CLIState(object):
"""
Class containing any bits passed in from setup.py
"""
def __init__(self):
self.regenerate_output = False
self.use_coverage = False
self.debug = False
clistate = _CLIState()
def has_old_osinfo():
# Some tests rely on newer osinfo data. Check for a new condition
# here, and older tests will be skipped
osname = "win7"
if not virtinst.OSDB.lookup_os(osname):
return True
return not virtinst.OSDB.lookup_os(osname).supports_chipset_q35()
class _URIs(object):
def __init__(self):
self._conn_cache = {}
self._testdriver_cache = None
self._testdriver_error = None
self._testdriver_default = None
_capspath = "%s/tests/capabilities-xml/" % os.getcwd()
def _domcaps(path):
return ",domcaps=" + _capspath + path
def _caps(path):
return ",caps=" + _capspath + path
_testtmpl = "__virtinst_test__test://%s,predictable"
self.test_default = _testtmpl % "/default"
self.test_full = _testtmpl % (os.getcwd() + "/tests/testdriver.xml")
self.test_suite = _testtmpl % (os.getcwd() + "/tests/testsuite.xml")
self.test_remote = self.test_full + ",remote"
self.xen = self.test_full + _caps("xen-rhel5.4.xml") + ",xen"
self.lxc = self.test_full + _caps("lxc.xml") + ",lxc"
self.vz = self.test_full + _caps("vz.xml") + ",vz"
_uri_qemu = "%s,qemu" % self.test_full
_uri_kvm = _uri_qemu + _domcaps("kvm-x86_64-domcaps.xml")
_uri_kvm_q35 = _uri_qemu + _domcaps("kvm-x86_64-domcaps-q35.xml")
_uri_kvm_aarch64 = _uri_qemu + _domcaps("kvm-aarch64-domcaps.xml")
self.kvm = _uri_kvm + _caps("kvm-x86_64.xml")
self.kvm_remote = _uri_kvm + _caps("kvm-x86_64.xml") + ",remote"
self.kvm_nodomcaps = _uri_qemu + _caps("kvm-x86_64.xml")
self.kvm_rhel = _uri_kvm + _caps("kvm-x86_64-rhel7.xml")
self.kvm_q35 = _uri_kvm_q35 + _caps("kvm-x86_64.xml")
self.kvm_session = self.kvm + ",session"
self.kvm_armv7l = _uri_kvm + _caps("kvm-armv7l.xml")
self.kvm_armv7l_nodomcaps = _uri_qemu + _caps("kvm-armv7l.xml")
self.kvm_aarch64 = _uri_kvm_aarch64 + _caps("kvm-aarch64.xml")
self.kvm_ppc64le = _uri_kvm + _caps("kvm-ppc64le.xml")
self.kvm_s390x = _uri_kvm + _caps("kvm-s390x.xml")
self.kvm_s390x_KVMIBM = _uri_kvm + _caps("kvm-s390x-KVMIBM.xml")
def openconn(self, uri):
"""
Extra super caching to speed up the test suite. We basically
cache the first guest/pool/vol poll attempt for each URI, and save it
across multiple reopenings of that connection. We aren't caching
libvirt objects, just parsed XML objects. This works fine since
generally every test uses a fresh virConnect, or undoes the
persistent changes it makes.
"""
virtinst.util.register_libvirt_error_handler()
is_testdriver_xml = "/testdriver.xml" in uri
if not (is_testdriver_xml and self._testdriver_error):
try:
conn = virtinst.cli.getConnection(uri)
except libvirt.libvirtError as e:
if not is_testdriver_xml:
raise
self._testdriver_error = (
"error opening testdriver.xml: %s\n"
"libvirt is probably too old" % str(e))
print(self._testdriver_error, file=sys.stderr)
if is_testdriver_xml and self._testdriver_error:
raise unittest.SkipTest(self._testdriver_error)
uri = conn._open_uri
# For the basic test:///default URI, skip this caching, so we have
# an option to test the stock code
if uri == self.test_default:
return conn
if uri not in self._conn_cache:
conn.fetch_all_domains()
conn.fetch_all_pools()
conn.fetch_all_vols()
conn.fetch_all_nodedevs()
self._conn_cache[uri] = {}
for key, value in conn._fetch_cache.items():
self._conn_cache[uri][key] = value[:]
# Prime the internal connection cache
for key, value in self._conn_cache[uri].items():
conn._fetch_cache[key] = value[:]
def cb_cache_new_pool(poolobj):
# Used by clonetest.py nvram-newpool test
if poolobj.name() == "nvram-newpool":
from virtinst import StorageVolume
vol = StorageVolume(conn)
vol.pool = poolobj
vol.name = "clone-orig-vars.fd"
vol.capacity = 1024 * 1024
vol.install()
conn._cache_new_pool_raw(poolobj)
conn.cb_cache_new_pool = cb_cache_new_pool
return conn
def open_testdriver_cached(self):
"""
Open plain testdriver.xml and cache the instance. Tests that
use this are expected to clean up after themselves so driver
state doesn't become polluted.
"""
if not self._testdriver_cache:
self._testdriver_cache = self.openconn(self.test_full)
return self._testdriver_cache
def open_testdefault_cached(self):
if not self._testdriver_default:
self._testdriver_default = self.openconn(self.test_default)
return self._testdriver_default
def _make_uri(self, base, connver=None, libver=None):
if connver:
base += ",connver=%s" % connver
if libver:
base += ",libver=%s" % libver
return base
def open_kvm(self, connver=None, libver=None):
return self.openconn(self._make_uri(self.kvm, connver, libver))
def open_kvm_rhel(self, connver=None):
return self.openconn(self._make_uri(self.kvm_rhel, connver))
def open_test_remote(self):
return self.openconn(self.test_remote)
URIs = _URIs()
def test_create(testconn, xml, define_func="defineXML"):
xml = virtinst.uri.sanitize_xml_for_test_define(xml)
try:
func = getattr(testconn, define_func)
obj = func(xml)
except Exception as e:
raise RuntimeError(str(e) + "\n" + xml)
try:
obj.create()
obj.destroy()
obj.undefine()
except Exception:
try:
obj.destroy()
except Exception:
pass
try:
obj.undefine()
except Exception:
pass
def diff_compare(actual_out, filename=None, expect_out=None):
"""Compare passed string output to contents of filename"""
if not expect_out:
if not os.path.exists(filename) or clistate.regenerate_output:
open(filename, "w").write(actual_out)
expect_out = open(filename).read()
diff = "".join(difflib.unified_diff(expect_out.splitlines(1),
actual_out.splitlines(1),
fromfile=filename or '',
tofile="Generated Output"))
if diff:
raise AssertionError("Conversion outputs did not match.\n%s" % diff)
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