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webvirtcloud/vrtManager/tests/test_live_nvram.py
catborise bdc8a6755c test: each test is in the tests package of the code it tests
Tests that build vrtManager objects and touch no view, form or model of
an app lived in that app; vrtManager/tests already holds such tests, so
the convention was split. They move to vrtManager/tests: the firmware,
CPU mode and PCIe port definitions of a new VM (test_create), USB and PCI
host devices, the console listener, host CPU reads, interface reads,
deletes and XML, network filters, PCI passthrough rules, node devices,
network changes, addresses and leases, pool XML, secrets, and the live
tests that use vrtManager only (disk resize, ISO, snapshots, XML, live
clone). livetest.py, the live-test helper six apps import, and the
network test driver move with them.

Others go to their app: the quota with a host down to instances, the
401/403 Logs rows (webvirtcloud's middleware) to webvirtcloud, the VM
page's tab script test to instances, novncd's own tests out of the
console views tests, the compute lock and input validation tests out of
the computes views tests, the interface views out of the forms tests.
instances/tests/test_views.py, entirely live, is test_live_views.py.

Test modules imported fixtures from each other; shared ones are now in
vrtManager/tests/fakes.py (migration fakes, node devices, IOMMU groups,
leases, a NAT network, a Ceph secret), interfaces/tests/fakes.py,
console/tests/daemons.py (novncd loaded once), livetest.wait_for and
instances/tests/create_page.BODY. Every live test checks
livetest.enabled(). The suite runs the same 2097 tests.
2026-11-06 13:48:04 +03:00

88 lines
3.6 KiB
Python

"""Live check that the NVRAM file a migrated VM leaves behind is removed,
and kept when the destination sees the same directory.
Runs only with TEST_LIBVIRT_HOST set (see vrtManager/tests/livetest.py). The
deletion needs a second host: TEST_LIBVIRT_SSH_HOST (and _LOGIN).
"""
import os
import unittest
import libvirt
from django.test import SimpleTestCase
from lxml import etree
from vrtManager.tests import livetest
from vrtManager.connection import CONN_SSH, NVRAM_DIR, connection_manager, wvmConnect
NAME = livetest.PREFIX + "nvram"
PATH = f"{NVRAM_DIR}/{NAME}_VARS.fd"
class LiveRemoveNvramTestCase(SimpleTestCase):
@classmethod
def setUpClass(cls):
if not livetest.enabled():
raise unittest.SkipTest("Set TEST_LIBVIRT_HOST to run the live libvirt tests")
cls.args = (
os.environ["TEST_LIBVIRT_HOST"],
os.environ.get("TEST_LIBVIRT_LOGIN", ""),
os.environ.get("TEST_LIBVIRT_PASSWORD", ""),
int(os.environ.get("TEST_LIBVIRT_TYPE", 4)),
)
cls.conn = connection_manager.get_connection(*cls.args)
livetest.cleanup(cls.conn)
cls.inventory = livetest.inventory(cls.conn)
cls.pools = {p.name() for p in cls.conn.listAllStoragePools()}
super().setUpClass()
@classmethod
def tearDownClass(cls):
livetest.cleanup(cls.conn)
super().tearDownClass()
if livetest.inventory(cls.conn) != cls.inventory:
raise AssertionError("Live tests changed objects outside the test namespace")
if {p.name() for p in cls.conn.listAllStoragePools()} != cls.pools:
raise AssertionError("A storage pool was left behind")
def leave_nvram(self):
"""What a migration with VIR_MIGRATE_UNDEFINE_SOURCE leaves: the file
without a domain."""
dom = self.conn.defineXML(
f"<domain type='kvm'><name>{NAME}</name><memory unit='MiB'>128</memory><vcpu>1</vcpu>"
"<os firmware='efi'><type arch='x86_64' machine='q35'>hvm</type></os>"
"<features><acpi/></features><devices/></domain>"
)
dom.createWithFlags(libvirt.VIR_DOMAIN_START_PAUSED) # creates the file
self.assertEqual(etree.fromstring(dom.XMLDesc(0)).findtext("os/nvram"), PATH)
dom.destroy()
dom.undefineFlags(libvirt.VIR_DOMAIN_UNDEFINE_KEEP_NVRAM)
def tearDown(self):
livetest.cleanup(self.conn)
host = wvmConnect(*self.args)
with host._nvram_pool() as pool:
vol = host._find_volume(pool, os.path.basename(PATH))
if vol is not None:
vol.delete(0)
def exists(self):
host = wvmConnect(*self.args)
with host._nvram_pool() as pool:
return host._find_volume(pool, os.path.basename(PATH)) is not None
def test_a_directory_both_connections_see_is_kept(self):
self.leave_nvram()
self.assertFalse(wvmConnect(*self.args).remove_nvram(PATH, wvmConnect(*self.args)))
self.assertTrue(self.exists())
def test_the_file_is_deleted_when_the_destination_is_another_host(self):
other_host = os.environ.get("TEST_LIBVIRT_SSH_HOST")
if not other_host or other_host == self.args[0]:
self.skipTest("Set TEST_LIBVIRT_SSH_HOST to a second host")
other = wvmConnect(other_host, os.environ.get("TEST_LIBVIRT_SSH_LOGIN", "root"), "", CONN_SSH)
other_pools = {p.name() for p in other.wvm.listAllStoragePools()}
self.leave_nvram()
self.assertTrue(wvmConnect(*self.args).remove_nvram(PATH, other))
self.assertFalse(self.exists())
self.assertEqual({p.name() for p in other.wvm.listAllStoragePools()}, other_pools)