12b481a668
This adds the InstanceMapping object for interacting with the instance_mapping table. Rather than creating a new db api the database operations are embedded within the object. This keeps the logic near where it's being used. This does make an assumption about using sqlalchemy for now. In order to allow for substituting the database driver we will probably want to setup a subclassing system for objects to swap that part out. This would allow for finer control than we currently have. Change-Id: Ide9cc7a255b886647fd424c2030beff0335e2cd3 bp: cells-v2-mapping
123 lines
4.4 KiB
Python
123 lines
4.4 KiB
Python
# 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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from oslo_utils import uuidutils
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from nova import objects
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from nova.objects import instance_mapping
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from nova.tests.unit.objects import test_objects
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def get_db_mapping(**updates):
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db_mapping = {
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'id': 1,
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'instance_uuid': uuidutils.generate_uuid(),
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'cell_id': 42,
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'project_id': 'fake-project',
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'created_at': None,
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'updated_at': None,
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}
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db_mapping.update(updates)
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return db_mapping
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class _TestInstanceMappingObject(object):
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@mock.patch.object(instance_mapping.InstanceMapping,
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'_get_by_instance_uuid_from_db')
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def test_get_by_instance_uuid(self, uuid_from_db):
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db_mapping = get_db_mapping()
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uuid_from_db.return_value = db_mapping
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mapping_obj = objects.InstanceMapping().get_by_instance_uuid(
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self.context, db_mapping['instance_uuid'])
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uuid_from_db.assert_called_once_with(self.context,
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db_mapping['instance_uuid'])
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self.compare_obj(mapping_obj, db_mapping)
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@mock.patch.object(instance_mapping.InstanceMapping, '_create_in_db')
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def test_create(self, create_in_db):
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db_mapping = get_db_mapping()
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uuid = db_mapping['instance_uuid']
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create_in_db.return_value = db_mapping
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mapping_obj = objects.InstanceMapping(self.context)
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mapping_obj.instance_uuid = uuid
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mapping_obj.cell_id = db_mapping['cell_id']
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mapping_obj.project_id = db_mapping['project_id']
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mapping_obj.create()
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create_in_db.assert_called_once_with(self.context,
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{'instance_uuid': uuid,
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'cell_id': db_mapping['cell_id'],
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'project_id': db_mapping['project_id']})
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self.compare_obj(mapping_obj, db_mapping)
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@mock.patch.object(instance_mapping.InstanceMapping, '_save_in_db')
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def test_save(self, save_in_db):
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db_mapping = get_db_mapping()
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uuid = db_mapping['instance_uuid']
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save_in_db.return_value = db_mapping
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mapping_obj = objects.InstanceMapping(self.context)
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mapping_obj.instance_uuid = uuid
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mapping_obj.cell_id = 3
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mapping_obj.save()
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save_in_db.assert_called_once_with(self.context,
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db_mapping['instance_uuid'],
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{'cell_id': 3,
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'instance_uuid': uuid})
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self.compare_obj(mapping_obj, db_mapping)
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@mock.patch.object(instance_mapping.InstanceMapping, '_destroy_in_db')
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def test_destroy(self, destroy_in_db):
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uuid = uuidutils.generate_uuid()
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mapping_obj = objects.InstanceMapping(self.context)
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mapping_obj.instance_uuid = uuid
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mapping_obj.destroy()
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destroy_in_db.assert_called_once_with(self.context, uuid)
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class TestInstanceMappingObject(test_objects._LocalTest,
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_TestInstanceMappingObject):
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pass
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class TestRemoteInstanceMappingObject(test_objects._RemoteTest,
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_TestInstanceMappingObject):
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pass
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class _TestInstanceMappingListObject(object):
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@mock.patch.object(instance_mapping.InstanceMappingList,
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'_get_by_project_id_from_db')
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def test_get_by_project_id(self, project_id_from_db):
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db_mapping = get_db_mapping()
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project_id_from_db.return_value = [db_mapping]
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mapping_obj = objects.InstanceMappingList().get_by_project_id(
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self.context, db_mapping['project_id'])
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project_id_from_db.assert_called_once_with(self.context,
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db_mapping['project_id'])
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self.compare_obj(mapping_obj.objects[0], db_mapping)
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class TestInstanceMappingListObject(test_objects._LocalTest,
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_TestInstanceMappingListObject):
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pass
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class TestRemoteInstanceMappingListObject(test_objects._RemoteTest,
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_TestInstanceMappingListObject):
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pass
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