208 lines
7.3 KiB
Python
208 lines
7.3 KiB
Python
# Copyright 2012 IBM Corp.
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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 mock
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import mox
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from nova.compute import manager as compute_manager
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from nova import context
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from nova import db
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from nova import exception
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from nova.objects import external_event as external_event_obj
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from nova import test
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from nova.virt import fake
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from nova.virt import virtapi
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class VirtAPIBaseTest(test.NoDBTestCase, test.APICoverage):
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cover_api = virtapi.VirtAPI
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def setUp(self):
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super(VirtAPIBaseTest, self).setUp()
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self.context = context.RequestContext('fake-user', 'fake-project')
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self.set_up_virtapi()
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def set_up_virtapi(self):
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self.virtapi = virtapi.VirtAPI()
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def assertExpected(self, method, *args, **kwargs):
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self.assertRaises(NotImplementedError,
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getattr(self.virtapi, method), self.context,
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*args, **kwargs)
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def test_instance_update(self):
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self.assertExpected('instance_update', 'fake-uuid',
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dict(host='foohost'))
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def test_provider_fw_rule_get_all(self):
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self.assertExpected('provider_fw_rule_get_all')
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def test_agent_build_get_by_triple(self):
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self.assertExpected('agent_build_get_by_triple',
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'fake-hv', 'gnu/hurd', 'fake-arch')
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def test_wait_for_instance_event(self):
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self.assertExpected('wait_for_instance_event',
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'instance', ['event'])
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class FakeVirtAPITest(VirtAPIBaseTest):
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cover_api = fake.FakeVirtAPI
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def set_up_virtapi(self):
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self.virtapi = fake.FakeVirtAPI()
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def assertExpected(self, method, *args, **kwargs):
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if method == 'wait_for_instance_event':
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run = False
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with self.virtapi.wait_for_instance_event(*args, **kwargs):
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run = True
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self.assertTrue(run)
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return
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if method == 'instance_update':
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# NOTE(danms): instance_update actually becomes the other variant
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# in FakeVirtAPI
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db_method = 'instance_update_and_get_original'
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else:
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db_method = method
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self.mox.StubOutWithMock(db, db_method)
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if method in ('aggregate_metadata_add', 'aggregate_metadata_delete',
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'security_group_rule_get_by_security_group'):
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# NOTE(danms): FakeVirtAPI will convert the first argument to
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# argument['id'], so expect that in the actual db call
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e_args = tuple([args[0]['id']] + list(args[1:]))
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elif method == 'security_group_get_by_instance':
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e_args = tuple([args[0]['uuid']] + list(args[1:]))
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else:
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e_args = args
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getattr(db, db_method)(self.context, *e_args, **kwargs).AndReturn(
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'it worked')
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self.mox.ReplayAll()
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result = getattr(self.virtapi, method)(self.context, *args, **kwargs)
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self.assertEqual(result, 'it worked')
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class FakeCompute(object):
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def __init__(self):
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self.conductor_api = mox.MockAnything()
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self.db = mox.MockAnything()
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self._events = []
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self.instance_events = mock.MagicMock()
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self.instance_events.prepare_for_instance_event.side_effect = \
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self._prepare_for_instance_event
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def _instance_update(self, context, instance_uuid, **kwargs):
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# NOTE(danms): Fake this behavior from compute/manager::ComputeManager
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return self.conductor_api.instance_update(context,
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instance_uuid, kwargs)
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def _event_waiter(self):
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event = mock.MagicMock()
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event.status = 'completed'
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return event
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def _prepare_for_instance_event(self, instance, event_name):
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m = mock.MagicMock()
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m.instance = instance
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m.event_name = event_name
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m.wait.side_effect = self._event_waiter
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self._events.append(m)
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return m
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class ComputeVirtAPITest(VirtAPIBaseTest):
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cover_api = compute_manager.ComputeVirtAPI
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def set_up_virtapi(self):
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self.compute = FakeCompute()
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self.virtapi = compute_manager.ComputeVirtAPI(self.compute)
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def assertExpected(self, method, *args, **kwargs):
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self.mox.StubOutWithMock(self.compute.conductor_api, method)
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getattr(self.compute.conductor_api, method)(
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self.context, *args, **kwargs).AndReturn('it worked')
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self.mox.ReplayAll()
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result = getattr(self.virtapi, method)(self.context, *args, **kwargs)
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self.assertEqual(result, 'it worked')
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def test_wait_for_instance_event(self):
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and_i_ran = ''
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event_1_tag = external_event_obj.InstanceExternalEvent.make_key(
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'event1')
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event_2_tag = external_event_obj.InstanceExternalEvent.make_key(
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'event2', 'tag')
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events = {
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'event1': event_1_tag,
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('event2', 'tag'): event_2_tag,
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}
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with self.virtapi.wait_for_instance_event('instance', events.keys()):
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and_i_ran = 'I ran so far a-waa-y'
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self.assertEqual('I ran so far a-waa-y', and_i_ran)
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self.assertEqual(2, len(self.compute._events))
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for event in self.compute._events:
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self.assertEqual('instance', event.instance)
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self.assertIn(event.event_name, events.values())
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event.wait.assert_called_once_with()
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def test_wait_for_instance_event_failed(self):
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def _failer():
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event = mock.MagicMock()
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event.status = 'failed'
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return event
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@mock.patch.object(self.virtapi._compute, '_event_waiter', _failer)
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def do_test():
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with self.virtapi.wait_for_instance_event('instance', ['foo']):
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pass
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self.assertRaises(exception.NovaException, do_test)
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def test_wait_for_instance_event_failed_callback(self):
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def _failer():
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event = mock.MagicMock()
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event.status = 'failed'
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return event
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@mock.patch.object(self.virtapi._compute, '_event_waiter', _failer)
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def do_test():
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callback = mock.MagicMock()
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with self.virtapi.wait_for_instance_event('instance', ['foo'],
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error_callback=callback):
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pass
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callback.assert_called_with('foo', 'instance')
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do_test()
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def test_wait_for_instance_event_timeout(self):
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class TestException(Exception):
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pass
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def _failer():
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raise TestException()
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@mock.patch.object(self.virtapi._compute, '_event_waiter', _failer)
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@mock.patch('eventlet.timeout.Timeout')
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def do_test(timeout):
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with self.virtapi.wait_for_instance_event('instance', ['foo']):
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pass
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self.assertRaises(TestException, do_test)
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