75eac61a06
- Remove flow REVERTING state. Now flow can be running and reverting simultaneously. Until flow isn't finished it is in RUNNING state. - Add RETRYING state for the retry controller. - Implement smart revertion and flow retries and retries resumption. - Default retry controllers: Times, ForEach and ParameterizedForEach. - Example and unit tests. Implements: blueprint subgraph-execution Implements: blueprint reversion-strategies Implements: blueprint smart-revert Change-Id: Ifa600bcad1edf2910f02ac36783cd458afbd880c
120 lines
5.1 KiB
Python
120 lines
5.1 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright (C) 2013 Yahoo! Inc. 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 taskflow import exceptions as exc
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from taskflow import states
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from taskflow import test
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class TransitionTest(test.TestCase):
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def assertTransitionAllowed(self, from_state, to_state):
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self.assertTrue(self.check_transition(from_state, to_state))
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def assertTransitionIgnored(self, from_state, to_state):
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self.assertFalse(self.check_transition(from_state, to_state))
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def assertTransitionForbidden(self, from_state, to_state):
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self.assertRaisesRegexp(exc.InvalidState, self.transition_exc_regexp,
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self.check_transition, from_state, to_state)
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def assertTransitions(self, from_state, allowed=None, ignored=None,
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forbidden=None):
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for a in allowed or []:
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self.assertTransitionAllowed(from_state, a)
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for i in ignored or []:
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self.assertTransitionIgnored(from_state, i)
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for f in forbidden or []:
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self.assertTransitionForbidden(from_state, f)
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class CheckFlowTransitionTest(TransitionTest):
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def setUp(self):
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super(CheckFlowTransitionTest, self).setUp()
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self.check_transition = states.check_flow_transition
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self.transition_exc_regexp = '^Flow transition.*not allowed'
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def test_to_same_state(self):
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self.assertTransitionIgnored(states.SUCCESS, states.SUCCESS)
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def test_rerunning_allowed(self):
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self.assertTransitionAllowed(states.SUCCESS, states.RUNNING)
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def test_no_resuming_from_pending(self):
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self.assertTransitionIgnored(states.PENDING, states.RESUMING)
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def test_resuming_from_running(self):
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self.assertTransitionAllowed(states.RUNNING, states.RESUMING)
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def test_bad_transition_raises(self):
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self.assertTransitionForbidden(states.FAILURE, states.SUCCESS)
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class CheckTaskTransitionTest(TransitionTest):
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def setUp(self):
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super(CheckTaskTransitionTest, self).setUp()
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self.check_transition = states.check_task_transition
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self.transition_exc_regexp = '^Task transition.*not allowed'
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def test_from_pending_state(self):
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self.assertTransitions(from_state=states.PENDING,
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allowed=(states.RUNNING,),
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ignored=(states.PENDING, states.REVERTING,
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states.SUCCESS, states.FAILURE,
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states.REVERTED))
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def test_from_running_state(self):
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self.assertTransitions(from_state=states.RUNNING,
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allowed=(states.SUCCESS, states.FAILURE,),
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ignored=(states.REVERTING, states.RUNNING,
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states.PENDING, states.REVERTED))
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def test_from_success_state(self):
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self.assertTransitions(from_state=states.SUCCESS,
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allowed=(states.REVERTING, states.RETRYING),
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ignored=(states.RUNNING, states.SUCCESS,
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states.PENDING, states.FAILURE,
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states.REVERTED))
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def test_from_failure_state(self):
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self.assertTransitions(from_state=states.FAILURE,
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allowed=(states.REVERTING,),
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ignored=(states.FAILURE, states.RUNNING,
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states.PENDING,
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states.SUCCESS, states.REVERTED))
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def test_from_reverting_state(self):
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self.assertTransitions(from_state=states.REVERTING,
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allowed=(states.FAILURE, states.REVERTED),
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ignored=(states.RUNNING, states.REVERTING,
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states.PENDING, states.SUCCESS))
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def test_from_reverted_state(self):
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self.assertTransitions(from_state=states.REVERTED,
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allowed=(states.PENDING,),
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ignored=(states.REVERTING, states.REVERTED,
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states.RUNNING,
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states.SUCCESS, states.FAILURE))
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def test_from_retrying_state(self):
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self.assertTransitions(from_state=states.RETRYING,
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allowed=(states.RUNNING,),
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ignored=(states.RETRYING, states.SUCCESS,
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states.PENDING, states.FAILURE,
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states.REVERTED))
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