# 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 os import sys import libvirt import pytest import virtinst import virtinst.uri from virtinst import cli from virtinst import xmlutil # pylint: disable=protected-access class _TestConfig(object): """ Class containing any bits passed in from setup.py """ def __init__(self): self.regenerate_output = False self.debug = False self.skip_checkprops = False self.url_only = False self.url_iso_only = False self.url_skip_libosinfo = False self.url_force_libosinfo = False TESTCONFIG = _TestConfig() TESTDIR = os.path.abspath(os.path.dirname(__file__)) TOPDIR = os.path.dirname(TESTDIR) DATADIR = os.path.join(TESTDIR, "data") UITESTDIR = os.path.join(TESTDIR, "uitests") UITESTDATADIR = os.path.join(UITESTDIR, "data") def has_old_osinfo(): # Some tests rely on newer osinfo data. Check for a new condition # here, and older tests will be skipped osname = "centos7.0" 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 = DATADIR + "/capabilities/" def _domcaps(path): return ",domcaps=" + _capspath + path def _caps(path): return ",caps=" + _capspath + path _testtmpl = "__virtinst_test__test://%s,predictable" _testdriverdir = DATADIR + "/testdriver/" # We don't use actual test:///default, which saves state # for the lifetime of the process which can cause weird # trickling effects for the testsuite. We use our own # test XML which roughly matches test:///default, and then # fake the URI self.test_default = _testtmpl % (_testdriverdir + "testdefault.xml") + ",fakeuri=test:///default" self.test_full = _testtmpl % (_testdriverdir + "testdriver.xml") self.test_suite = _testtmpl % (_testdriverdir + "testsuite.xml") self.test_defaultpool_collision = _testtmpl % ( _testdriverdir + "defaultpool-collision.xml") self.test_empty = _testtmpl % (_testdriverdir + "empty.xml") def _m(fakeuri): return self.test_full + ",fakeuri=%s" % fakeuri self.test_remote = _m("test+tls://fakeuri.example.com/") self.xen = _m("xen:///") + _caps("xen-rhel5.4.xml") self.lxc = _m("lxc:///") + _caps("lxc.xml") self.vz = _m("vz:///") + _caps("vz.xml") self.bhyve = _m("bhyve:///") + _caps("bhyve.xml") + _domcaps("bhyve-domcaps.xml") _uri_qemu = _m("qemu:///system") # KVM x86 URIs _kvm_x86_caps = _caps("kvm-x86_64.xml") + _domcaps("kvm-x86_64-domcaps-latest.xml") self.kvm_x86_session = _m("qemu:///session") + _kvm_x86_caps self.kvm_x86 = _uri_qemu + _kvm_x86_caps self.kvm_x86_remote = _m("qemu+tls://fakeuri.example.com/system") + _kvm_x86_caps self.kvm_x86_nodomcaps = _uri_qemu + _caps("kvm-x86_64.xml") self.kvm_x86_cpu_insecure = self.kvm_x86_nodomcaps + _domcaps("kvm-x86_64-domcaps-insecure.xml") self.kvm_x86_oldfirmware = self.kvm_x86_nodomcaps + _domcaps("kvm-x86_64-domcaps-oldfirmware.xml") self.kvm_amd_sev = self.kvm_x86_nodomcaps + _domcaps("kvm-x86_64-domcaps-amd-sev.xml") # Non-x86 arch URIs self.kvm_armv7l_nodomcaps = _uri_qemu + _caps("kvm-armv7l.xml") self.kvm_armv7l = self.kvm_armv7l_nodomcaps + _domcaps("kvm-armv7l-domcaps.xml") self.kvm_aarch64 = _uri_qemu + _caps("kvm-aarch64.xml") + _domcaps("kvm-aarch64-domcaps.xml") self.kvm_ppc64le = _uri_qemu + _caps("kvm-ppc64le.xml") + _domcaps("kvm-ppc64le-domcaps.xml") self.kvm_s390x = _uri_qemu + _caps("kvm-s390x.xml") + _domcaps("kvm-s390x-domcaps.xml") self.qemu_riscv64 = _uri_qemu + _caps("qemu-riscv64.xml") + _domcaps("qemu-riscv64-domcaps.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. """ is_testdriver_xml = "/testdriver.xml" in uri if not (is_testdriver_xml and self._testdriver_error): try: conn = 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: pytest.skip(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 open_kvm(self): return self.openconn(self.kvm_x86) 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: # pylint: disable=raise-missing-from 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): """ Test suite helper for comparing two strings If filename is passed, but the file doesn't exist, we write actual_out to it. This makes it easy to populate output for new testcases If the --regenerate-output pytest flag was passed, we re-write every specified filename. @actual_out: Output we generated @filename: filename where expected good test output is stored @expect_out: expected string to compare against """ # Make sure all test output has trailing newline, simplifies diffing if not actual_out.endswith("\n"): actual_out += "\n" if not expect_out: if not os.path.exists(filename) or TESTCONFIG.regenerate_output: open(filename, "w").write(actual_out) expect_out = open(filename).read() if not expect_out.endswith("\n"): expect_out += "\n" diff = xmlutil.diff(expect_out, actual_out, filename or '', "Generated output") if diff: raise AssertionError("Conversion outputs did not match.\n%s" % diff) def run_without_testsuite_hacks(cb): """ Decorator for unsetting the test suite env variable """ def wrapper_cb(*args, **kwargs): origval = os.environ.pop("VIRTINST_TEST_SUITE", None) try: return cb(*args, **kwargs) finally: if origval: os.environ["VIRTINST_TEST_SUITE"] = origval return wrapper_cb