435 lines
17 KiB
Python
435 lines
17 KiB
Python
# Copyright (c) 2011 OpenStack Foundation
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# All Rights Reserved.
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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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from lxml import etree
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import testtools
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import webob.exc
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from nova.api.openstack.compute.contrib import hosts as os_hosts
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from nova.compute import power_state
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from nova.compute import vm_states
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from nova import context as context_maker
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from nova import db
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from nova import exception
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from nova import test
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from nova.tests import fake_hosts
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from nova.tests import utils
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def stub_service_get_all(context, disabled=None):
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return fake_hosts.SERVICES_LIST
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def stub_service_get_by_host_and_topic(context, host_name, topic):
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for service in stub_service_get_all(context):
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if service['host'] == host_name and service['topic'] == topic:
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return service
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def stub_set_host_enabled(context, host_name, enabled):
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"""
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Simulates three possible behaviours for VM drivers or compute drivers when
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enabling or disabling a host.
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'enabled' means new instances can go to this host
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'disabled' means they can't
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"""
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results = {True: "enabled", False: "disabled"}
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if host_name == "notimplemented":
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# The vm driver for this host doesn't support this feature
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raise NotImplementedError()
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elif host_name == "dummydest":
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# The host does not exist
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raise exception.ComputeHostNotFound(host=host_name)
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elif host_name == "host_c2":
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# Simulate a failure
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return results[not enabled]
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else:
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# Do the right thing
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return results[enabled]
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def stub_set_host_maintenance(context, host_name, mode):
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# We'll simulate success and failure by assuming
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# that 'host_c1' always succeeds, and 'host_c2'
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# always fails
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results = {True: "on_maintenance", False: "off_maintenance"}
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if host_name == "notimplemented":
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# The vm driver for this host doesn't support this feature
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raise NotImplementedError()
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elif host_name == "dummydest":
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# The host does not exist
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raise exception.ComputeHostNotFound(host=host_name)
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elif host_name == "host_c2":
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# Simulate a failure
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return results[not mode]
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else:
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# Do the right thing
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return results[mode]
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def stub_host_power_action(context, host_name, action):
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if host_name == "notimplemented":
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raise NotImplementedError()
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elif host_name == "dummydest":
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# The host does not exist
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raise exception.ComputeHostNotFound(host=host_name)
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return action
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def _create_instance(**kwargs):
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"""Create a test instance."""
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ctxt = context_maker.get_admin_context()
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return db.instance_create(ctxt, _create_instance_dict(**kwargs))
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def _create_instance_dict(**kwargs):
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"""Create a dictionary for a test instance."""
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inst = {}
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inst['image_ref'] = 'cedef40a-ed67-4d10-800e-17455edce175'
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inst['reservation_id'] = 'r-fakeres'
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inst['user_id'] = kwargs.get('user_id', 'admin')
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inst['project_id'] = kwargs.get('project_id', 'fake')
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inst['instance_type_id'] = '1'
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if 'host' in kwargs:
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inst['host'] = kwargs.get('host')
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inst['vcpus'] = kwargs.get('vcpus', 1)
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inst['memory_mb'] = kwargs.get('memory_mb', 20)
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inst['root_gb'] = kwargs.get('root_gb', 30)
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inst['ephemeral_gb'] = kwargs.get('ephemeral_gb', 30)
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inst['vm_state'] = kwargs.get('vm_state', vm_states.ACTIVE)
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inst['power_state'] = kwargs.get('power_state', power_state.RUNNING)
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inst['task_state'] = kwargs.get('task_state', None)
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inst['availability_zone'] = kwargs.get('availability_zone', None)
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inst['ami_launch_index'] = 0
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inst['launched_on'] = kwargs.get('launched_on', 'dummy')
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return inst
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class FakeRequest(object):
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environ = {"nova.context": context_maker.get_admin_context()}
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GET = {}
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class FakeRequestWithNovaZone(object):
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environ = {"nova.context": context_maker.get_admin_context()}
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GET = {"zone": "nova"}
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class HostTestCase(test.TestCase):
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"""Test Case for hosts."""
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def setUp(self):
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super(HostTestCase, self).setUp()
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self.controller = os_hosts.HostController()
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self.hosts_api = self.controller.api
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self.req = FakeRequest()
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# Pretend we have fake_hosts.HOST_LIST in the DB
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self.stubs.Set(db, 'service_get_all',
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stub_service_get_all)
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# Only hosts in our fake DB exist
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self.stubs.Set(db, 'service_get_by_host_and_topic',
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stub_service_get_by_host_and_topic)
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# 'host_c1' always succeeds, and 'host_c2'
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self.stubs.Set(self.hosts_api, 'set_host_enabled',
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stub_set_host_enabled)
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# 'host_c1' always succeeds, and 'host_c2'
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self.stubs.Set(self.hosts_api, 'set_host_maintenance',
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stub_set_host_maintenance)
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self.stubs.Set(self.hosts_api, 'host_power_action',
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stub_host_power_action)
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def _test_host_update(self, host, key, val, expected_value):
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body = {key: val}
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result = self.controller.update(self.req, host, body)
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self.assertEqual(result[key], expected_value)
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def test_list_hosts(self):
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"""Verify that the compute hosts are returned."""
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result = self.controller.index(self.req)
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self.assert_('hosts' in result)
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hosts = result['hosts']
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self.assertEqual(fake_hosts.HOST_LIST, hosts)
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def test_list_hosts_with_zone(self):
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result = self.controller.index(FakeRequestWithNovaZone())
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self.assert_('hosts' in result)
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hosts = result['hosts']
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self.assertEqual(fake_hosts.HOST_LIST_NOVA_ZONE, hosts)
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def test_disable_host(self):
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self._test_host_update('host_c1', 'status', 'disable', 'disabled')
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self._test_host_update('host_c2', 'status', 'disable', 'enabled')
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def test_enable_host(self):
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self._test_host_update('host_c1', 'status', 'enable', 'enabled')
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self._test_host_update('host_c2', 'status', 'enable', 'disabled')
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def test_enable_maintenance(self):
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self._test_host_update('host_c1', 'maintenance_mode',
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'enable', 'on_maintenance')
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def test_disable_maintenance(self):
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self._test_host_update('host_c1', 'maintenance_mode',
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'disable', 'off_maintenance')
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def _test_host_update_notimpl(self, key, val):
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def stub_service_get_all_notimpl(self, req):
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return [{'host': 'notimplemented', 'topic': None,
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'availability_zone': None}]
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self.stubs.Set(db, 'service_get_all',
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stub_service_get_all_notimpl)
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body = {key: val}
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self.assertRaises(webob.exc.HTTPNotImplemented,
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self.controller.update,
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self.req, 'notimplemented', body=body)
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def test_disable_host_notimpl(self):
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self._test_host_update_notimpl('status', 'disable')
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def test_enable_maintenance_notimpl(self):
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self._test_host_update_notimpl('maintenance_mode', 'enable')
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def test_host_startup(self):
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result = self.controller.startup(self.req, "host_c1")
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self.assertEqual(result["power_action"], "startup")
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def test_host_shutdown(self):
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result = self.controller.shutdown(self.req, "host_c1")
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self.assertEqual(result["power_action"], "shutdown")
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def test_host_reboot(self):
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result = self.controller.reboot(self.req, "host_c1")
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self.assertEqual(result["power_action"], "reboot")
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def _test_host_power_action_notimpl(self, method):
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self.assertRaises(webob.exc.HTTPNotImplemented,
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method, self.req, "notimplemented")
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def test_host_startup_notimpl(self):
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self._test_host_power_action_notimpl(self.controller.startup)
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def test_host_shutdown_notimpl(self):
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self._test_host_power_action_notimpl(self.controller.shutdown)
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def test_host_reboot_notimpl(self):
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self._test_host_power_action_notimpl(self.controller.reboot)
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def test_host_status_bad_host(self):
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# A host given as an argument does not exist.
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self.req.environ["nova.context"].is_admin = True
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dest = 'dummydest'
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with testtools.ExpectedException(webob.exc.HTTPNotFound,
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".*%s.*" % dest):
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self.controller.update(self.req, dest, body={'status': 'enable'})
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def test_host_maintenance_bad_host(self):
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# A host given as an argument does not exist.
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self.req.environ["nova.context"].is_admin = True
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dest = 'dummydest'
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with testtools.ExpectedException(webob.exc.HTTPNotFound,
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".*%s.*" % dest):
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self.controller.update(self.req, dest,
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body={'maintenance_mode': 'enable'})
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def test_host_power_action_bad_host(self):
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# A host given as an argument does not exist.
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self.req.environ["nova.context"].is_admin = True
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dest = 'dummydest'
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with testtools.ExpectedException(webob.exc.HTTPNotFound,
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".*%s.*" % dest):
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self.controller.reboot(self.req, dest)
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def test_bad_status_value(self):
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bad_body = {"status": "bad"}
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self.assertRaises(webob.exc.HTTPBadRequest, self.controller.update,
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self.req, "host_c1", bad_body)
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bad_body2 = {"status": "disablabc"}
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self.assertRaises(webob.exc.HTTPBadRequest, self.controller.update,
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self.req, "host_c1", bad_body2)
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def test_bad_update_key(self):
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bad_body = {"crazy": "bad"}
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self.assertRaises(webob.exc.HTTPBadRequest, self.controller.update,
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self.req, "host_c1", bad_body)
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def test_bad_update_key_and_correct_update_key(self):
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bad_body = {"status": "disable", "crazy": "bad"}
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self.assertRaises(webob.exc.HTTPBadRequest, self.controller.update,
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self.req, "host_c1", bad_body)
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def test_good_update_keys(self):
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body = {"status": "disable", "maintenance_mode": "enable"}
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result = self.controller.update(self.req, 'host_c1', body)
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self.assertEqual(result["host"], "host_c1")
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self.assertEqual(result["status"], "disabled")
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self.assertEqual(result["maintenance_mode"], "on_maintenance")
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def test_show_forbidden(self):
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self.req.environ["nova.context"].is_admin = False
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dest = 'dummydest'
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self.assertRaises(webob.exc.HTTPForbidden,
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self.controller.show,
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self.req, dest)
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self.req.environ["nova.context"].is_admin = True
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def test_show_host_not_exist(self):
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# A host given as an argument does not exist.
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self.req.environ["nova.context"].is_admin = True
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dest = 'dummydest'
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with testtools.ExpectedException(webob.exc.HTTPNotFound,
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".*%s.*" % dest):
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self.controller.show(self.req, dest)
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def _create_compute_service(self):
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"""Create compute-manager(ComputeNode and Service record)."""
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ctxt = self.req.environ["nova.context"]
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dic = {'host': 'dummy', 'binary': 'nova-compute', 'topic': 'compute',
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'report_count': 0}
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s_ref = db.service_create(ctxt, dic)
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dic = {'service_id': s_ref['id'],
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'vcpus': 16, 'memory_mb': 32, 'local_gb': 100,
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'vcpus_used': 16, 'memory_mb_used': 32, 'local_gb_used': 10,
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'hypervisor_type': 'qemu', 'hypervisor_version': 12003,
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'cpu_info': '', 'stats': {}}
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db.compute_node_create(ctxt, dic)
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return db.service_get(ctxt, s_ref['id'])
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def test_show_no_project(self):
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"""No instances are running on the given host."""
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ctxt = context_maker.get_admin_context()
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s_ref = self._create_compute_service()
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result = self.controller.show(self.req, s_ref['host'])
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proj = ['(total)', '(used_now)', '(used_max)']
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column = ['host', 'project', 'cpu', 'memory_mb', 'disk_gb']
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self.assertEqual(len(result['host']), 3)
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for resource in result['host']:
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self.assertTrue(resource['resource']['project'] in proj)
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self.assertEqual(len(resource['resource']), 5)
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self.assertTrue(set(resource['resource'].keys()) == set(column))
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db.service_destroy(ctxt, s_ref['id'])
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def test_show_works_correctly(self):
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"""show() works correctly as expected."""
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ctxt = context_maker.get_admin_context()
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s_ref = self._create_compute_service()
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i_ref1 = _create_instance(project_id='p-01', host=s_ref['host'])
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i_ref2 = _create_instance(project_id='p-02', vcpus=3,
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host=s_ref['host'])
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result = self.controller.show(self.req, s_ref['host'])
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proj = ['(total)', '(used_now)', '(used_max)', 'p-01', 'p-02']
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column = ['host', 'project', 'cpu', 'memory_mb', 'disk_gb']
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self.assertEqual(len(result['host']), 5)
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for resource in result['host']:
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self.assertTrue(resource['resource']['project'] in proj)
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self.assertEqual(len(resource['resource']), 5)
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self.assertTrue(set(resource['resource'].keys()) == set(column))
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db.service_destroy(ctxt, s_ref['id'])
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db.instance_destroy(ctxt, i_ref1['uuid'])
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db.instance_destroy(ctxt, i_ref2['uuid'])
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class HostSerializerTest(test.TestCase):
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def setUp(self):
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super(HostSerializerTest, self).setUp()
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self.deserializer = os_hosts.HostUpdateDeserializer()
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def test_index_serializer(self):
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serializer = os_hosts.HostIndexTemplate()
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text = serializer.serialize(fake_hosts.OS_API_HOST_LIST)
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tree = etree.fromstring(text)
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self.assertEqual('hosts', tree.tag)
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self.assertEqual(len(fake_hosts.HOST_LIST), len(tree))
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for i in range(len(fake_hosts.HOST_LIST)):
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self.assertEqual('host', tree[i].tag)
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self.assertEqual(fake_hosts.HOST_LIST[i]['host_name'],
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tree[i].get('host_name'))
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self.assertEqual(fake_hosts.HOST_LIST[i]['service'],
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tree[i].get('service'))
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self.assertEqual(fake_hosts.HOST_LIST[i]['zone'],
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tree[i].get('zone'))
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def test_update_serializer_with_status(self):
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exemplar = dict(host='host_c1', status='enabled')
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serializer = os_hosts.HostUpdateTemplate()
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text = serializer.serialize(exemplar)
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tree = etree.fromstring(text)
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self.assertEqual('host', tree.tag)
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for key, value in exemplar.items():
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self.assertEqual(value, tree.get(key))
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def test_update_serializer_with_maintainance_mode(self):
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exemplar = dict(host='host_c1', maintenance_mode='enabled')
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serializer = os_hosts.HostUpdateTemplate()
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text = serializer.serialize(exemplar)
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tree = etree.fromstring(text)
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self.assertEqual('host', tree.tag)
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for key, value in exemplar.items():
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self.assertEqual(value, tree.get(key))
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def test_update_serializer_with_maintainance_mode_and_status(self):
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exemplar = dict(host='host_c1',
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maintenance_mode='enabled',
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status='enabled')
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serializer = os_hosts.HostUpdateTemplate()
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text = serializer.serialize(exemplar)
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tree = etree.fromstring(text)
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self.assertEqual('host', tree.tag)
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for key, value in exemplar.items():
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self.assertEqual(value, tree.get(key))
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def test_action_serializer(self):
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exemplar = dict(host='host_c1', power_action='reboot')
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serializer = os_hosts.HostActionTemplate()
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text = serializer.serialize(exemplar)
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tree = etree.fromstring(text)
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self.assertEqual('host', tree.tag)
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for key, value in exemplar.items():
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self.assertEqual(value, tree.get(key))
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def test_update_deserializer(self):
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exemplar = dict(status='enabled', maintenance_mode='disable')
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intext = """<?xml version='1.0' encoding='UTF-8'?>
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<updates>
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<status>enabled</status>
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<maintenance_mode>disable</maintenance_mode>
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</updates>"""
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result = self.deserializer.deserialize(intext)
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self.assertEqual(dict(body=exemplar), result)
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def test_corrupt_xml(self):
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self.assertRaises(
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exception.MalformedRequestBody,
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self.deserializer.deserialize,
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utils.killer_xml_body())
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