251 lines
6.6 KiB
Python
251 lines
6.6 KiB
Python
# Copyright 2014 - Mirantis, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import datetime as dt
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import mock
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from oslo_config import cfg
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import requests
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from mistral.db.v2 import api as db_api
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from mistral.services import workflows as wf_service
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from mistral.tests.unit.engine import base
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from mistral.workflow import states
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# Use the set_default method to set value otherwise in certain test cases
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# the change in value is not permanent.
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cfg.CONF.set_default('auth_enable', False, group='pecan')
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class TaskDefaultsDirectWorkflowEngineTest(base.EngineTestCase):
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@mock.patch.object(
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requests,
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'request',
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mock.MagicMock(side_effect=Exception())
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)
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def test_task_defaults_on_error(self):
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wf_text = """---
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version: '2.0'
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wf:
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type: direct
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task-defaults:
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on-error:
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- task3
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tasks:
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task1:
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description: That should lead to transition to task3.
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action: std.http url="http://some_url"
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on-success:
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- task2
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task2:
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action: std.echo output="Morpheus"
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task3:
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action: std.echo output="output"
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"""
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wf_service.create_workflows(wf_text)
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# Start workflow.
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wf_ex = self.engine.start_workflow('wf')
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self.await_workflow_success(wf_ex.id)
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with db_api.transaction():
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# Note: We need to reread execution to access related tasks.
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wf_ex = db_api.get_workflow_execution(wf_ex.id)
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tasks = wf_ex.task_executions
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task1 = self._assert_single_item(tasks, name='task1')
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task3 = self._assert_single_item(tasks, name='task3')
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self.assertEqual(2, len(tasks))
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self.assertEqual(states.ERROR, task1.state)
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self.assertEqual(states.SUCCESS, task3.state)
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class TaskDefaultsReverseWorkflowEngineTest(base.EngineTestCase):
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def test_task_defaults_retry_policy(self):
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wf_text = """---
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version: '2.0'
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wf:
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type: reverse
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task-defaults:
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retry:
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count: 2
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delay: 1
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tasks:
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task1:
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action: std.fail
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task2:
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action: std.echo output=2
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requires: [task1]
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"""
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wf_service.create_workflows(wf_text)
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# Start workflow.
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wf_ex = self.engine.start_workflow('wf', task_name='task2')
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self.await_workflow_error(wf_ex.id)
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with db_api.transaction():
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# Note: We need to reread execution to access related tasks.
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wf_ex = db_api.get_workflow_execution(wf_ex.id)
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tasks = wf_ex.task_executions
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self.assertEqual(1, len(tasks))
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task1 = self._assert_single_item(
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tasks,
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name='task1',
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state=states.ERROR
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)
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self.assertGreater(
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task1.runtime_context['retry_task_policy']['retry_no'], 0
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)
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def test_task_defaults_timeout_policy(self):
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wf_text = """---
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version: '2.0'
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wf:
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type: reverse
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task-defaults:
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timeout: 1
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tasks:
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task1:
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action: std.async_noop
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task2:
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action: std.echo output=2
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requires: [task1]
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"""
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wf_service.create_workflows(wf_text)
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# Start workflow.
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wf_ex = self.engine.start_workflow('wf', task_name='task2')
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self.await_workflow_error(wf_ex.id)
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with db_api.transaction():
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# Note: We need to reread execution to access related tasks.
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wf_ex = db_api.get_workflow_execution(wf_ex.id)
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tasks = wf_ex.task_executions
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self.assertEqual(1, len(tasks))
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self._assert_single_item(tasks, name='task1', state=states.ERROR)
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task_ex = db_api.get_task_execution(tasks[0].id)
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self.assertIn("Task timed out", task_ex.state_info)
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def test_task_defaults_wait_policies(self):
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wf_text = """---
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version: '2.0'
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wf:
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type: reverse
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task-defaults:
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wait-before: 1
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wait-after: 1
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tasks:
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task1:
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action: std.echo output=1
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"""
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wf_service.create_workflows(wf_text)
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time_before = dt.datetime.utcnow()
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# Start workflow.
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wf_ex = self.engine.start_workflow('wf', task_name='task1')
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self.await_workflow_success(wf_ex.id)
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# Workflow must work at least 2 seconds (1+1).
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self.assertGreater(
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(dt.datetime.utcnow() - time_before).total_seconds(),
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2
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)
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with db_api.transaction():
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# Note: We need to reread execution to access related tasks.
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wf_ex = db_api.get_workflow_execution(wf_ex.id)
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tasks = wf_ex.task_executions
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self.assertEqual(1, len(tasks))
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self._assert_single_item(tasks, name='task1', state=states.SUCCESS)
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def test_task_defaults_requires(self):
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wf_text = """---
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version: '2.0'
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wf:
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type: reverse
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task-defaults:
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requires: [always_do]
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tasks:
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task1:
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action: std.echo output=1
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task2:
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action: std.echo output=1
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requires: [task1]
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always_do:
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action: std.echo output="Do something"
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"""
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wf_service.create_workflows(wf_text)
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# Start workflow.
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wf_ex = self.engine.start_workflow('wf', task_name='task2')
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self.await_workflow_success(wf_ex.id)
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with db_api.transaction():
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# Note: We need to reread execution to access related tasks.
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wf_ex = db_api.get_workflow_execution(wf_ex.id)
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tasks = wf_ex.task_executions
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self.assertEqual(3, len(tasks))
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self._assert_single_item(tasks, name='task1', state=states.SUCCESS)
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self._assert_single_item(tasks, name='task2', state=states.SUCCESS)
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self._assert_single_item(tasks, name='always_do', state=states.SUCCESS)
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