37d9591f7e
To support this, I've added a fake libvirt implementation. It's supposed to expose an API and behaviour identical to that of libvirt itself except without actually running any VM's or setting up any firewall or anything, but still responding correctly when asked for a domain's XML, a list of defined domains, running domains, etc. I've also split out everything from libvirt.connection that is potentially destructive or otherwise undesirable to run during testing, and moved it to a new nova.virt.libvirt.utils. I added tests for those things separately as well as stub version of it for testing. I hope eventually to make it similar to fakelibvirt in style (e.g. keep track of files created and deleted and attempts to open a file that it doesn't know about, you'll get proper exceptions with proper errnos set and whatnot). Change-Id: Id90b260933e3443b4ffb3b29e4bc0cbc82c19ba6
467 lines
18 KiB
Python
467 lines
18 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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#
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# Copyright 2010 OpenStack LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import base64
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import netaddr
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import sys
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import traceback
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from nova import exception
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from nova import flags
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from nova import image
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from nova import log as logging
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from nova import test
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from nova.tests import utils as test_utils
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libvirt = None
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FLAGS = flags.FLAGS
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LOG = logging.getLogger('nova.tests.test_virt_drivers')
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def catch_notimplementederror(f):
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"""Decorator to simplify catching drivers raising NotImplementedError
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If a particular call makes a driver raise NotImplementedError, we
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log it so that we can extract this information afterwards to
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automatically generate a hypervisor/feature support matrix."""
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def wrapped_func(self, *args, **kwargs):
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try:
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return f(self, *args, **kwargs)
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except NotImplementedError:
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frame = traceback.extract_tb(sys.exc_info()[2])[-1]
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LOG.error('%(driver)s does not implement %(method)s' % {
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'driver': type(self.connection),
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'method': frame[2]})
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wrapped_func.__name__ = f.__name__
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wrapped_func.__doc__ = f.__doc__
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return wrapped_func
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class _VirtDriverTestCase(test.TestCase):
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def setUp(self):
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super(_VirtDriverTestCase, self).setUp()
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self.connection = self.driver_module.get_connection('')
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self.ctxt = test_utils.get_test_admin_context()
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self.image_service = image.get_default_image_service()
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def _get_running_instance(self):
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instance_ref = test_utils.get_test_instance()
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network_info = test_utils.get_test_network_info()
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image_info = test_utils.get_test_image_info(None, instance_ref)
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self.connection.spawn(self.ctxt, instance=instance_ref,
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image_meta=image_info,
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network_info=network_info)
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return instance_ref, network_info
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@catch_notimplementederror
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def test_init_host(self):
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self.connection.init_host('myhostname')
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@catch_notimplementederror
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def test_list_instances(self):
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self.connection.list_instances()
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@catch_notimplementederror
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def test_list_instances_detail(self):
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self.connection.list_instances_detail()
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@catch_notimplementederror
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def test_spawn(self):
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instance_ref, network_info = self._get_running_instance()
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domains = self.connection.list_instances()
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self.assertIn(instance_ref['name'], domains)
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domains_details = self.connection.list_instances_detail()
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self.assertIn(instance_ref['name'], [i.name for i in domains_details])
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@catch_notimplementederror
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def test_snapshot_not_running(self):
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instance_ref = test_utils.get_test_instance()
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img_ref = self.image_service.create(self.ctxt, {'name': 'snap-1'})
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self.assertRaises(exception.InstanceNotRunning,
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self.connection.snapshot,
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self.ctxt, instance_ref, img_ref['id'])
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@catch_notimplementederror
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def test_snapshot_running(self):
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img_ref = self.image_service.create(self.ctxt, {'name': 'snap-1'})
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instance_ref, network_info = self._get_running_instance()
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self.connection.snapshot(self.ctxt, instance_ref, img_ref['id'])
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@catch_notimplementederror
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def test_reboot(self):
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reboot_type = "SOFT"
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instance_ref, network_info = self._get_running_instance()
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self.connection.reboot(instance_ref, network_info, reboot_type)
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@catch_notimplementederror
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def test_get_host_ip_addr(self):
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host_ip = self.connection.get_host_ip_addr()
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# Will raise an exception if it's not a valid IP at all
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ip = netaddr.IPAddress(host_ip)
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# For now, assume IPv4.
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self.assertEquals(ip.version, 4)
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@catch_notimplementederror
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def test_resize_running(self):
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instance_ref, network_info = self._get_running_instance()
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self.connection.resize(instance_ref, 7)
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@catch_notimplementederror
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def test_set_admin_password(self):
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instance_ref, network_info = self._get_running_instance()
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self.connection.set_admin_password(instance_ref, 'p4ssw0rd')
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@catch_notimplementederror
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def test_inject_file(self):
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instance_ref, network_info = self._get_running_instance()
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self.connection.inject_file(instance_ref,
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base64.b64encode('/testfile'),
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base64.b64encode('testcontents'))
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@catch_notimplementederror
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def test_agent_update(self):
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instance_ref, network_info = self._get_running_instance()
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self.connection.agent_update(instance_ref, 'http://www.openstack.org/',
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'd41d8cd98f00b204e9800998ecf8427e')
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@catch_notimplementederror
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def test_rescue(self):
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instance_ref, network_info = self._get_running_instance()
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self.connection.rescue(self.ctxt, instance_ref, network_info)
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@catch_notimplementederror
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def test_unrescue_unrescued_instance(self):
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instance_ref, network_info = self._get_running_instance()
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self.connection.unrescue(instance_ref, network_info)
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@catch_notimplementederror
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def test_unrescue_rescued_instance(self):
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instance_ref, network_info = self._get_running_instance()
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self.connection.rescue(self.ctxt, instance_ref, network_info)
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self.connection.unrescue(instance_ref, network_info)
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@catch_notimplementederror
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def test_poll_rebooting_instances(self):
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self.connection.poll_rebooting_instances(10)
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@catch_notimplementederror
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def test_poll_rescued_instances(self):
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self.connection.poll_rescued_instances(10)
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@catch_notimplementederror
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def test_poll_unconfirmed_resizes(self):
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self.connection.poll_unconfirmed_resizes(10)
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@catch_notimplementederror
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def test_migrate_disk_and_power_off(self):
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instance_ref, network_info = self._get_running_instance()
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self.connection.migrate_disk_and_power_off(
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self.ctxt, instance_ref, 'dest_host')
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@catch_notimplementederror
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def test_pause(self):
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instance_ref, network_info = self._get_running_instance()
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self.connection.pause(instance_ref)
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@catch_notimplementederror
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def test_unpause_unpaused_instance(self):
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instance_ref, network_info = self._get_running_instance()
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self.connection.unpause(instance_ref)
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@catch_notimplementederror
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def test_unpause_paused_instance(self):
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instance_ref, network_info = self._get_running_instance()
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self.connection.pause(instance_ref)
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self.connection.unpause(instance_ref)
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@catch_notimplementederror
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def test_suspend(self):
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instance_ref, network_info = self._get_running_instance()
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self.connection.suspend(instance_ref)
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@catch_notimplementederror
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def test_resume_unsuspended_instance(self):
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instance_ref, network_info = self._get_running_instance()
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self.connection.resume(instance_ref)
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@catch_notimplementederror
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def test_resume_suspended_instance(self):
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instance_ref, network_info = self._get_running_instance()
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self.connection.suspend(instance_ref)
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self.connection.resume(instance_ref)
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@catch_notimplementederror
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def test_destroy_instance_nonexistant(self):
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fake_instance = {'id': 42, 'name': 'I just made this up!'}
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network_info = test_utils.get_test_network_info()
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self.connection.destroy(fake_instance, network_info)
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@catch_notimplementederror
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def test_destroy_instance(self):
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instance_ref, network_info = self._get_running_instance()
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self.assertIn(instance_ref['name'],
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self.connection.list_instances())
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self.connection.destroy(instance_ref, network_info)
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self.assertNotIn(instance_ref['name'],
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self.connection.list_instances())
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@catch_notimplementederror
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def test_attach_detach_volume(self):
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instance_ref, network_info = self._get_running_instance()
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self.connection.attach_volume({'driver_volume_type': 'fake'},
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instance_ref['name'],
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'/mnt/nova/something')
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self.connection.detach_volume({'driver_volume_type': 'fake'},
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instance_ref['name'],
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'/mnt/nova/something')
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@catch_notimplementederror
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def test_get_info(self):
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instance_ref, network_info = self._get_running_instance()
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info = self.connection.get_info(instance_ref['name'])
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self.assertIn('state', info)
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self.assertIn('max_mem', info)
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self.assertIn('mem', info)
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self.assertIn('num_cpu', info)
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self.assertIn('cpu_time', info)
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@catch_notimplementederror
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def test_get_info_for_unknown_instance(self):
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self.assertRaises(exception.NotFound,
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self.connection.get_info, 'I just made this name up')
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@catch_notimplementederror
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def test_get_diagnostics(self):
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instance_ref, network_info = self._get_running_instance()
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self.connection.get_diagnostics(instance_ref['name'])
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@catch_notimplementederror
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def test_list_disks(self):
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instance_ref, network_info = self._get_running_instance()
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self.connection.list_disks(instance_ref['name'])
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@catch_notimplementederror
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def test_list_interfaces(self):
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instance_ref, network_info = self._get_running_instance()
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self.connection.list_interfaces(instance_ref['name'])
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@catch_notimplementederror
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def test_block_stats(self):
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instance_ref, network_info = self._get_running_instance()
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stats = self.connection.block_stats(instance_ref['name'], 'someid')
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self.assertEquals(len(stats), 5)
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@catch_notimplementederror
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def test_interface_stats(self):
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instance_ref, network_info = self._get_running_instance()
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stats = self.connection.interface_stats(instance_ref['name'], 'someid')
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self.assertEquals(len(stats), 8)
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@catch_notimplementederror
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def test_get_console_output(self):
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instance_ref, network_info = self._get_running_instance()
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console_output = self.connection.get_console_output(instance_ref)
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self.assertTrue(isinstance(console_output, basestring))
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@catch_notimplementederror
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def test_get_ajax_console(self):
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instance_ref, network_info = self._get_running_instance()
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ajax_console = self.connection.get_ajax_console(instance_ref)
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self.assertIn('token', ajax_console)
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self.assertIn('host', ajax_console)
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self.assertIn('port', ajax_console)
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@catch_notimplementederror
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def test_get_vnc_console(self):
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instance_ref, network_info = self._get_running_instance()
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vnc_console = self.connection.get_vnc_console(instance_ref)
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self.assertIn('token', vnc_console)
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self.assertIn('host', vnc_console)
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self.assertIn('port', vnc_console)
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@catch_notimplementederror
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def test_get_console_pool_info(self):
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instance_ref, network_info = self._get_running_instance()
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console_pool = self.connection.get_console_pool_info(instance_ref)
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self.assertIn('address', console_pool)
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self.assertIn('username', console_pool)
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self.assertIn('password', console_pool)
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@catch_notimplementederror
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def test_refresh_security_group_rules(self):
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# FIXME: Create security group and add the instance to it
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instance_ref, network_info = self._get_running_instance()
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self.connection.refresh_security_group_rules(1)
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@catch_notimplementederror
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def test_refresh_security_group_members(self):
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# FIXME: Create security group and add the instance to it
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instance_ref, network_info = self._get_running_instance()
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self.connection.refresh_security_group_members(1)
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@catch_notimplementederror
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def test_refresh_provider_fw_rules(self):
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instance_ref, network_info = self._get_running_instance()
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self.connection.refresh_provider_fw_rules()
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@catch_notimplementederror
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def test_update_available_resource(self):
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self.compute = self.start_service('compute', host='dummy')
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self.connection.update_available_resource(self.ctxt, 'dummy')
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@catch_notimplementederror
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def test_compare_cpu(self):
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cpu_info = '''{ "topology": {
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"sockets": 1,
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"cores": 2,
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"threads": 1 },
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"features": [
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"xtpr",
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"tm2",
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"est",
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"vmx",
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"ds_cpl",
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"monitor",
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"pbe",
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"tm",
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"ht",
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"ss",
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"acpi",
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"ds",
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"vme"],
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"arch": "x86_64",
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"model": "Penryn",
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"vendor": "Intel" }'''
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self.connection.compare_cpu(cpu_info)
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@catch_notimplementederror
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def test_ensure_filtering_for_instance(self):
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instance_ref = test_utils.get_test_instance()
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network_info = test_utils.get_test_network_info()
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self.connection.ensure_filtering_rules_for_instance(instance_ref,
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network_info)
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@catch_notimplementederror
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def test_unfilter_instance(self):
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instance_ref = test_utils.get_test_instance()
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network_info = test_utils.get_test_network_info()
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self.connection.unfilter_instance(instance_ref, network_info)
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@catch_notimplementederror
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def test_live_migration(self):
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instance_ref, network_info = self._get_running_instance()
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self.connection.live_migration(self.ctxt, instance_ref, 'otherhost',
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None, None)
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@catch_notimplementederror
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def _check_host_status_fields(self, host_status):
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self.assertIn('disk_total', host_status)
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self.assertIn('disk_used', host_status)
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self.assertIn('host_memory_total', host_status)
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self.assertIn('host_memory_free', host_status)
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@catch_notimplementederror
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def test_update_host_status(self):
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host_status = self.connection.update_host_status()
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self._check_host_status_fields(host_status)
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@catch_notimplementederror
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def test_get_host_stats(self):
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host_status = self.connection.get_host_stats()
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self._check_host_status_fields(host_status)
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@catch_notimplementederror
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def test_set_host_enabled(self):
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self.connection.set_host_enabled('a useless argument?', True)
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@catch_notimplementederror
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def test_host_power_action_reboot(self):
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self.connection.host_power_action('a useless argument?', 'reboot')
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@catch_notimplementederror
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def test_host_power_action_shutdown(self):
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self.connection.host_power_action('a useless argument?', 'shutdown')
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@catch_notimplementederror
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def test_host_power_action_startup(self):
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self.connection.host_power_action('a useless argument?', 'startup')
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class AbstractDriverTestCase(_VirtDriverTestCase):
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def setUp(self):
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import nova.virt.driver
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self.driver_module = nova.virt.driver
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def get_driver_connection(_):
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return nova.virt.driver.ComputeDriver()
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self.driver_module.get_connection = get_driver_connection
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super(AbstractDriverTestCase, self).setUp()
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class FakeConnectionTestCase(_VirtDriverTestCase):
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def setUp(self):
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import nova.virt.fake
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self.driver_module = nova.virt.fake
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super(FakeConnectionTestCase, self).setUp()
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class LibvirtConnTestCase(_VirtDriverTestCase):
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def setUp(self):
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# Put fakelibvirt in place
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if 'libvirt' in sys.modules:
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self.saved_libvirt = sys.modules['libvirt']
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else:
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self.saved_libvirt = None
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import fakelibvirt
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import fake_libvirt_utils
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sys.modules['libvirt'] = fakelibvirt
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import nova.virt.libvirt.connection
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import nova.virt.libvirt.firewall
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nova.virt.libvirt.connection.libvirt = fakelibvirt
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nova.virt.libvirt.connection.libvirt_utils = fake_libvirt_utils
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nova.virt.libvirt.firewall.libvirt = fakelibvirt
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# Point _VirtDriverTestCase at the right module
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self.driver_module = nova.virt.libvirt.connection
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super(LibvirtConnTestCase, self).setUp()
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FLAGS.rescue_image_id = "2"
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FLAGS.rescue_kernel_id = "3"
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FLAGS.rescue_ramdisk_id = None
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def tearDown(self):
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super(LibvirtConnTestCase, self).setUp()
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# Restore libvirt
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import nova.virt.libvirt.connection
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import nova.virt.libvirt.firewall
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if self.saved_libvirt:
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sys.modules['libvirt'] = self.saved_libvirt
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nova.virt.libvirt.connection.libvirt = self.saved_libvirt
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nova.virt.libvirt.connection.libvirt_utils = self.saved_libvirt
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nova.virt.libvirt.firewall.libvirt = self.saved_libvirt
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