6134ff689a
* save task failures to sqlalchemy backend and restore them
from there;
* for any wrapped exception use common WrappedFailre exception
type, which makes it easier to handle particular exception types;
* several minor improvements.
Affects-db: this change adds db migration that looses exception
information for saved task details.
Change-Id: I575282002e6999646bbf51f492b82a7e3525787a
187 lines
7.4 KiB
Python
187 lines
7.4 KiB
Python
# -*- coding: utf-8 -*-
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright (C) 2013 Rackspace Hosting 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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import contextlib
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from taskflow import exceptions as exc
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from taskflow.openstack.common import uuidutils
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from taskflow.persistence import logbook
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from taskflow.utils import misc
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class PersistenceTestMixin(object):
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def _get_connection():
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raise NotImplementedError()
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def test_logbook_save_retrieve(self):
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lb_id = uuidutils.generate_uuid()
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lb_meta = {'1': 2}
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lb_name = 'lb-%s' % (lb_id)
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lb = logbook.LogBook(name=lb_name, uuid=lb_id)
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lb.meta = lb_meta
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# Should not already exist
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with contextlib.closing(self._get_connection()) as conn:
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self.assertRaises(exc.NotFound, conn.get_logbook, lb_id)
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conn.save_logbook(lb)
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# Make sure we can reload it (and all of its attributes are what
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# we expect them to be).
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with contextlib.closing(self._get_connection()) as conn:
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lb = conn.get_logbook(lb_id)
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self.assertEquals(lb_name, lb.name)
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self.assertEquals(0, len(lb))
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self.assertEquals(lb_meta, lb.meta)
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self.assertIsNone(lb.updated_at)
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self.assertIsNotNone(lb.created_at)
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def test_flow_detail_save(self):
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lb_id = uuidutils.generate_uuid()
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lb_name = 'lb-%s' % (lb_id)
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lb = logbook.LogBook(name=lb_name, uuid=lb_id)
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fd = logbook.FlowDetail('test', uuid=uuidutils.generate_uuid())
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lb.add(fd)
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# Ensure we can't save it since its owning logbook hasn't been
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# saved (flow details can not exist on there own without a connection
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# to a logbook).
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with contextlib.closing(self._get_connection()) as conn:
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self.assertRaises(exc.NotFound, conn.get_logbook, lb_id)
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self.assertRaises(exc.NotFound, conn.update_flow_details, fd)
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# Ok now we should be able to save both.
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with contextlib.closing(self._get_connection()) as conn:
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conn.save_logbook(lb)
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conn.update_flow_details(fd)
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def test_task_detail_save(self):
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lb_id = uuidutils.generate_uuid()
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lb_name = 'lb-%s' % (lb_id)
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lb = logbook.LogBook(name=lb_name, uuid=lb_id)
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fd = logbook.FlowDetail('test', uuid=uuidutils.generate_uuid())
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lb.add(fd)
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td = logbook.TaskDetail("detail-1", uuid=uuidutils.generate_uuid())
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fd.add(td)
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# Ensure we can't save it since its owning logbook hasn't been
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# saved (flow details/task details can not exist on there own without
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# there parent existing).
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with contextlib.closing(self._get_connection()) as conn:
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self.assertRaises(exc.NotFound, conn.update_flow_details, fd)
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self.assertRaises(exc.NotFound, conn.update_task_details, td)
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# Ok now we should be able to save them.
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with contextlib.closing(self._get_connection()) as conn:
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conn.save_logbook(lb)
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conn.update_flow_details(fd)
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conn.update_task_details(td)
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def test_task_detail_with_failure(self):
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lb_id = uuidutils.generate_uuid()
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lb_name = 'lb-%s' % (lb_id)
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lb = logbook.LogBook(name=lb_name, uuid=lb_id)
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fd = logbook.FlowDetail('test', uuid=uuidutils.generate_uuid())
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lb.add(fd)
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td = logbook.TaskDetail("detail-1", uuid=uuidutils.generate_uuid())
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try:
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raise RuntimeError('Woot!')
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except Exception:
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td.failure = misc.Failure()
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fd.add(td)
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with contextlib.closing(self._get_connection()) as conn:
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conn.save_logbook(lb)
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conn.update_flow_details(fd)
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conn.update_task_details(td)
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# Read failure back
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with contextlib.closing(self._get_connection()) as conn:
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lb2 = conn.get_logbook(lb_id)
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fd2 = lb2.find(fd.uuid)
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td2 = fd2.find(td.uuid)
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failure = td2.failure
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self.assertEquals(failure.exception_str, 'Woot!')
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self.assertIs(failure.check(RuntimeError), RuntimeError)
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self.assertEquals(failure.traceback_str, td.failure.traceback_str)
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def test_logbook_merge_flow_detail(self):
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lb_id = uuidutils.generate_uuid()
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lb_name = 'lb-%s' % (lb_id)
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lb = logbook.LogBook(name=lb_name, uuid=lb_id)
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fd = logbook.FlowDetail('test', uuid=uuidutils.generate_uuid())
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lb.add(fd)
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with contextlib.closing(self._get_connection()) as conn:
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conn.save_logbook(lb)
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lb2 = logbook.LogBook(name=lb_name, uuid=lb_id)
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fd2 = logbook.FlowDetail('test2', uuid=uuidutils.generate_uuid())
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lb2.add(fd2)
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with contextlib.closing(self._get_connection()) as conn:
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conn.save_logbook(lb2)
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with contextlib.closing(self._get_connection()) as conn:
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lb3 = conn.get_logbook(lb_id)
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self.assertEquals(2, len(lb3))
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def test_logbook_add_flow_detail(self):
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lb_id = uuidutils.generate_uuid()
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lb_name = 'lb-%s' % (lb_id)
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lb = logbook.LogBook(name=lb_name, uuid=lb_id)
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fd = logbook.FlowDetail('test', uuid=uuidutils.generate_uuid())
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lb.add(fd)
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with contextlib.closing(self._get_connection()) as conn:
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conn.save_logbook(lb)
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with contextlib.closing(self._get_connection()) as conn:
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lb2 = conn.get_logbook(lb_id)
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self.assertEquals(1, len(lb2))
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self.assertEquals(1, len(lb))
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self.assertEquals(fd.name, lb2.find(fd.uuid).name)
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def test_logbook_add_task_detail(self):
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lb_id = uuidutils.generate_uuid()
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lb_name = 'lb-%s' % (lb_id)
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lb = logbook.LogBook(name=lb_name, uuid=lb_id)
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fd = logbook.FlowDetail('test', uuid=uuidutils.generate_uuid())
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td = logbook.TaskDetail("detail-1", uuid=uuidutils.generate_uuid())
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fd.add(td)
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lb.add(fd)
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with contextlib.closing(self._get_connection()) as conn:
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conn.save_logbook(lb)
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with contextlib.closing(self._get_connection()) as conn:
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lb2 = conn.get_logbook(lb_id)
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self.assertEquals(1, len(lb2))
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tasks = 0
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for fd in lb:
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tasks += len(fd)
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self.assertEquals(1, tasks)
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def test_logbook_delete(self):
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lb_id = uuidutils.generate_uuid()
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lb_name = 'lb-%s' % (lb_id)
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lb = logbook.LogBook(name=lb_name, uuid=lb_id)
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with contextlib.closing(self._get_connection()) as conn:
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self.assertRaises(exc.NotFound, conn.destroy_logbook, lb_id)
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with contextlib.closing(self._get_connection()) as conn:
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conn.save_logbook(lb)
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with contextlib.closing(self._get_connection()) as conn:
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lb2 = conn.get_logbook(lb_id)
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self.assertIsNotNone(lb2)
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with contextlib.closing(self._get_connection()) as conn:
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conn.destroy_logbook(lb_id)
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self.assertRaises(exc.NotFound, conn.destroy_logbook, lb_id)
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