699 lines
20 KiB
Python
699 lines
20 KiB
Python
# Copyright 2014 - Mirantis, Inc.
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# Copyright 2015 - StackStorm, 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
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import mock
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from oslo_config import cfg
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from oslo_messaging.rpc import client as rpc_client
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from oslo_utils import uuidutils
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from mistral.db.v2 import api as db_api
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from mistral.db.v2.sqlalchemy import models
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from mistral.engine import default_engine as d_eng
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from mistral import exceptions as exc
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from mistral.executors import base as exe
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from mistral.services import workbooks as wb_service
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from mistral.services import workflows as wf_service
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from mistral.tests.unit import base
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from mistral.tests.unit.engine import base as eng_test_base
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from mistral.workflow import states
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from mistral_lib import actions as ml_actions
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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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WORKBOOK = """
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---
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version: '2.0'
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name: wb
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workflows:
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wf:
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type: reverse
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input:
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- param1: value1
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- param2
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tasks:
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task1:
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action: std.echo output=<% $.param1 %>
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publish:
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var: <% task(task1).result %>
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task2:
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action: std.echo output=<% $.param2 %>
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requires: [task1]
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"""
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DATETIME_FORMAT = '%Y-%m-%d %H:%M:%S.%f'
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ENVIRONMENT = {
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'id': uuidutils.generate_uuid(),
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'name': 'test',
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'description': 'my test settings',
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'variables': {
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'key1': 'abc',
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'key2': 123
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},
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'scope': 'private',
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'created_at': str(datetime.datetime.utcnow()),
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'updated_at': str(datetime.datetime.utcnow())
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}
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ENVIRONMENT_DB = models.Environment(
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id=ENVIRONMENT['id'],
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name=ENVIRONMENT['name'],
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description=ENVIRONMENT['description'],
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variables=ENVIRONMENT['variables'],
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scope=ENVIRONMENT['scope'],
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created_at=datetime.datetime.strptime(ENVIRONMENT['created_at'],
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DATETIME_FORMAT),
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updated_at=datetime.datetime.strptime(ENVIRONMENT['updated_at'],
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DATETIME_FORMAT)
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)
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MOCK_ENVIRONMENT = mock.MagicMock(return_value=ENVIRONMENT_DB)
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MOCK_NOT_FOUND = mock.MagicMock(side_effect=exc.DBEntityNotFoundError())
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@mock.patch.object(exe, 'get_executor', mock.Mock())
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class DefaultEngineTest(base.DbTestCase):
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def setUp(self):
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super(DefaultEngineTest, self).setUp()
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wb_service.create_workbook_v2(WORKBOOK)
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# Note: For purposes of this test we can easily use
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# simple magic mocks for engine and executor clients
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self.engine = d_eng.DefaultEngine()
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def test_start_workflow(self):
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wf_input = {'param1': 'Hey', 'param2': 'Hi'}
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# Start workflow.
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wf_ex = self.engine.start_workflow(
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'wb.wf',
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wf_input=wf_input,
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description='my execution',
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task_name='task2'
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)
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self.assertIsNotNone(wf_ex)
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self.assertEqual(states.RUNNING, wf_ex.state)
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self.assertEqual('my execution', wf_ex.description)
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self.assertIn('__execution', wf_ex.context)
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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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task_execs = wf_ex.task_executions
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self.assertEqual(1, len(task_execs))
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task_ex = task_execs[0]
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self.assertEqual('wb.wf', task_ex.workflow_name)
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self.assertEqual('task1', task_ex.name)
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self.assertEqual(states.RUNNING, task_ex.state)
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self.assertIsNotNone(task_ex.spec)
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self.assertDictEqual({}, task_ex.runtime_context)
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# Data Flow properties.
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action_execs = db_api.get_action_executions(
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task_execution_id=task_ex.id
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)
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self.assertEqual(1, len(action_execs))
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task_action_ex = action_execs[0]
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self.assertIsNotNone(task_action_ex)
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self.assertDictEqual({'output': 'Hey'}, task_action_ex.input)
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def test_start_workflow_with_ex_id(self):
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wf_input = {'param1': 'Hey1', 'param2': 'Hi1'}
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the_ex_id = 'theId'
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# Start workflow.
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wf_ex = self.engine.start_workflow(
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'wb.wf',
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wf_input=wf_input,
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description='my execution',
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task_name='task2',
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wf_ex_id=the_ex_id
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)
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self.assertEqual(the_ex_id, wf_ex.id)
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wf_ex_2 = self.engine.start_workflow(
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'wb.wf',
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wf_input={'param1': 'Hey2', 'param2': 'Hi2'},
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wf_ex_id=the_ex_id
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)
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self.assertDictEqual(dict(wf_ex), dict(wf_ex_2))
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wf_executions = db_api.get_workflow_executions()
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self.assertEqual(1, len(wf_executions))
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def test_start_workflow_with_input_default(self):
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wf_input = {'param2': 'value2'}
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# Start workflow.
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wf_ex = self.engine.start_workflow(
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'wb.wf',
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wf_input=wf_input,
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task_name='task1'
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)
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self.assertIsNotNone(wf_ex)
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self.assertEqual(states.RUNNING, wf_ex.state)
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self.assertIn('__execution', wf_ex.context)
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# Note: We need to reread execution to access related tasks.
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with db_api.transaction():
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wf_ex = db_api.get_workflow_execution(wf_ex.id)
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task_execs = wf_ex.task_executions
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self.assertEqual(1, len(task_execs))
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task_ex = task_execs[0]
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self.assertEqual('wb.wf', task_ex.workflow_name)
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self.assertEqual('task1', task_ex.name)
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self.assertEqual(states.RUNNING, task_ex.state)
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self.assertIsNotNone(task_ex.spec)
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self.assertDictEqual({}, task_ex.runtime_context)
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# Data Flow properties.
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action_execs = db_api.get_action_executions(
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task_execution_id=task_ex.id
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)
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self.assertEqual(1, len(action_execs))
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task_action_ex = action_execs[0]
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self.assertIsNotNone(task_action_ex)
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self.assertDictEqual({'output': 'value1'}, task_action_ex.input)
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def test_start_workflow_with_adhoc_env(self):
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wf_input = {
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'param1': '<% env().key1 %>',
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'param2': '<% env().key2 %>'
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}
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env = ENVIRONMENT['variables']
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# Start workflow.
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wf_ex = self.engine.start_workflow(
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'wb.wf',
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wf_input=wf_input,
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env=env,
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task_name='task2')
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self.assertIsNotNone(wf_ex)
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with db_api.transaction():
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wf_ex = db_api.get_workflow_execution(wf_ex.id)
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self.assertDictEqual(wf_ex.params.get('env', {}), env)
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@mock.patch.object(db_api, "load_environment", MOCK_ENVIRONMENT)
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def test_start_workflow_with_saved_env(self):
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wf_input = {
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'param1': '<% env().key1 %>',
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'param2': '<% env().key2 %>'
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}
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env = ENVIRONMENT['variables']
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# Start workflow.
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wf_ex = self.engine.start_workflow(
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'wb.wf',
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wf_input=wf_input,
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env='test',
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task_name='task2'
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)
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self.assertIsNotNone(wf_ex)
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with db_api.transaction():
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wf_ex = db_api.get_workflow_execution(wf_ex.id)
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self.assertDictEqual(wf_ex.params.get('env', {}), env)
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@mock.patch.object(db_api, "get_environment", MOCK_NOT_FOUND)
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def test_start_workflow_env_not_found(self):
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e = self.assertRaises(
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exc.InputException,
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self.engine.start_workflow,
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'wb.wf',
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wf_input={
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'param1': '<% env().key1 %>',
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'param2': 'some value'
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},
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env='foo',
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task_name='task2'
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)
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self.assertEqual("Environment is not found: foo", str(e))
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def test_start_workflow_with_env_type_error(self):
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e = self.assertRaises(
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exc.InputException,
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self.engine.start_workflow,
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'wb.wf',
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wf_input={
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'param1': '<% env().key1 %>',
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'param2': 'some value'
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},
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env=True,
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task_name='task2'
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)
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self.assertIn('Unexpected value type for environment', str(e))
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def test_start_workflow_missing_parameters(self):
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e = self.assertRaises(
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exc.InputException,
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self.engine.start_workflow,
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'wb.wf',
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'',
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None,
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task_name='task2'
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)
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self.assertIn("Invalid input", str(e))
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self.assertIn("missing=['param2']", str(e))
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def test_start_workflow_unexpected_parameters(self):
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e = self.assertRaises(
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exc.InputException,
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self.engine.start_workflow,
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'wb.wf',
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wf_input={
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'param1': 'Hey',
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'param2': 'Hi',
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'unexpected_param': 'val'
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},
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task_name='task2'
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)
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self.assertIn("Invalid input", str(e))
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self.assertIn("unexpected=['unexpected_param']", str(e))
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def test_on_action_update(self):
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workflow = """
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version: '2.0'
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wf_async:
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type: direct
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tasks:
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task1:
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action: std.async_noop
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on-success:
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- task2
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task2:
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action: std.noop
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"""
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# Start workflow.
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wf_service.create_workflows(workflow)
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wf_ex = self.engine.start_workflow('wf_async')
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self.assertIsNotNone(wf_ex)
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self.assertEqual(states.RUNNING, wf_ex.state)
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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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task_execs = wf_ex.task_executions
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self.assertEqual(1, len(task_execs))
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task1_ex = task_execs[0]
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self.assertEqual('task1', task1_ex.name)
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self.assertEqual(states.RUNNING, task1_ex.state)
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action_execs = db_api.get_action_executions(
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task_execution_id=task1_ex.id
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)
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self.assertEqual(1, len(action_execs))
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task1_action_ex = action_execs[0]
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self.assertEqual(states.RUNNING, task1_action_ex.state)
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# Pause action execution of 'task1'.
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task1_action_ex = self.engine.on_action_update(
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task1_action_ex.id,
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states.PAUSED
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)
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self.assertIsInstance(task1_action_ex, models.ActionExecution)
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self.assertEqual(states.PAUSED, task1_action_ex.state)
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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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task_execs = wf_ex.task_executions
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self.assertEqual(1, len(task_execs))
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self.assertEqual(states.PAUSED, task_execs[0].state)
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self.assertEqual(states.PAUSED, wf_ex.state)
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action_execs = db_api.get_action_executions(
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task_execution_id=task1_ex.id
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)
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self.assertEqual(1, len(action_execs))
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task1_action_ex = action_execs[0]
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self.assertEqual(states.PAUSED, task1_action_ex.state)
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def test_on_action_update_non_async(self):
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workflow = """
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version: '2.0'
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wf_sync:
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type: direct
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tasks:
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task1:
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action: std.noop
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on-success:
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- task2
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task2:
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action: std.noop
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"""
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# Start workflow.
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wf_service.create_workflows(workflow)
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wf_ex = self.engine.start_workflow('wf_sync')
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self.assertIsNotNone(wf_ex)
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self.assertEqual(states.RUNNING, wf_ex.state)
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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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task_execs = wf_ex.task_executions
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self.assertEqual(1, len(task_execs))
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task1_ex = task_execs[0]
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self.assertEqual('task1', task1_ex.name)
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self.assertEqual(states.RUNNING, task1_ex.state)
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action_execs = db_api.get_action_executions(
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task_execution_id=task1_ex.id
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)
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self.assertEqual(1, len(action_execs))
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task1_action_ex = action_execs[0]
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self.assertEqual(states.RUNNING, task1_action_ex.state)
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self.assertRaises(
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exc.InvalidStateTransitionException,
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self.engine.on_action_update,
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task1_action_ex.id,
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states.PAUSED
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)
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def test_on_action_complete(self):
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wf_input = {'param1': 'Hey', 'param2': 'Hi'}
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# Start workflow.
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wf_ex = self.engine.start_workflow(
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'wb.wf',
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wf_input=wf_input,
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task_name='task2'
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)
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self.assertIsNotNone(wf_ex)
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self.assertEqual(states.RUNNING, wf_ex.state)
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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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task_execs = wf_ex.task_executions
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self.assertEqual(1, len(task_execs))
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task1_ex = task_execs[0]
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self.assertEqual('task1', task1_ex.name)
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self.assertEqual(states.RUNNING, task1_ex.state)
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self.assertIsNotNone(task1_ex.spec)
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self.assertDictEqual({}, task1_ex.runtime_context)
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self.assertNotIn('__execution', task1_ex.in_context)
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action_execs = db_api.get_action_executions(
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task_execution_id=task1_ex.id
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)
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self.assertEqual(1, len(action_execs))
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task1_action_ex = action_execs[0]
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self.assertIsNotNone(task1_action_ex)
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self.assertDictEqual({'output': 'Hey'}, task1_action_ex.input)
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# Finish action of 'task1'.
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task1_action_ex = self.engine.on_action_complete(
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task1_action_ex.id,
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ml_actions.Result(data='Hey')
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)
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self.assertIsInstance(task1_action_ex, models.ActionExecution)
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self.assertEqual('std.echo', task1_action_ex.name)
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self.assertEqual(states.SUCCESS, task1_action_ex.state)
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# Data Flow properties.
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task1_ex = db_api.get_task_execution(task1_ex.id) # Re-read the state.
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self.assertDictEqual({'var': 'Hey'}, task1_ex.published)
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self.assertDictEqual({'output': 'Hey'}, task1_action_ex.input)
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self.assertDictEqual({'result': 'Hey'}, task1_action_ex.output)
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with db_api.transaction():
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wf_ex = db_api.get_workflow_execution(wf_ex.id)
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self.assertIsNotNone(wf_ex)
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self.assertEqual(states.RUNNING, wf_ex.state)
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task_execs = wf_ex.task_executions
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self.assertEqual(2, len(task_execs))
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task2_ex = self._assert_single_item(task_execs, name='task2')
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self.assertEqual(states.RUNNING, task2_ex.state)
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action_execs = db_api.get_action_executions(
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task_execution_id=task2_ex.id
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)
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self.assertEqual(1, len(action_execs))
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task2_action_ex = action_execs[0]
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self.assertIsNotNone(task2_action_ex)
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self.assertDictEqual({'output': 'Hi'}, task2_action_ex.input)
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# Finish 'task2'.
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task2_action_ex = self.engine.on_action_complete(
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|
task2_action_ex.id,
|
|
ml_actions.Result(data='Hi')
|
|
)
|
|
|
|
self._await(
|
|
lambda:
|
|
db_api.get_workflow_execution(wf_ex.id).state == states.SUCCESS
|
|
)
|
|
|
|
with db_api.transaction():
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
|
|
self.assertIsNotNone(wf_ex)
|
|
|
|
task_execs = wf_ex.task_executions
|
|
|
|
self.assertEqual(states.SUCCESS, wf_ex.state)
|
|
|
|
self.assertIsInstance(task2_action_ex, models.ActionExecution)
|
|
self.assertEqual('std.echo', task2_action_ex.name)
|
|
self.assertEqual(states.SUCCESS, task2_action_ex.state)
|
|
|
|
# Data Flow properties.
|
|
self.assertDictEqual({'output': 'Hi'}, task2_action_ex.input)
|
|
self.assertDictEqual({}, task2_ex.published)
|
|
self.assertDictEqual({'output': 'Hi'}, task2_action_ex.input)
|
|
self.assertDictEqual({'result': 'Hi'}, task2_action_ex.output)
|
|
|
|
self.assertEqual(2, len(task_execs))
|
|
|
|
self._assert_single_item(task_execs, name='task1')
|
|
self._assert_single_item(task_execs, name='task2')
|
|
|
|
def test_stop_workflow_fail(self):
|
|
# Start workflow.
|
|
wf_ex = self.engine.start_workflow(
|
|
'wb.wf',
|
|
wf_input={
|
|
'param1': 'Hey',
|
|
'param2': 'Hi'
|
|
},
|
|
task_name="task2"
|
|
)
|
|
|
|
# Re-read execution to access related tasks.
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
|
|
self.engine.stop_workflow(wf_ex.id, 'ERROR', "Stop this!")
|
|
|
|
# Re-read from DB again
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
|
|
self.assertEqual('ERROR', wf_ex.state)
|
|
self.assertEqual("Stop this!", wf_ex.state_info)
|
|
|
|
def test_stop_workflow_succeed(self):
|
|
# Start workflow.
|
|
wf_ex = self.engine.start_workflow(
|
|
'wb.wf',
|
|
wf_input={
|
|
'param1': 'Hey',
|
|
'param2': 'Hi'
|
|
},
|
|
task_name="task2"
|
|
)
|
|
|
|
# Re-read execution to access related tasks.
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
|
|
self.engine.stop_workflow(wf_ex.id, 'SUCCESS', "Like this, done")
|
|
|
|
# Re-read from DB again
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
|
|
self.assertEqual('SUCCESS', wf_ex.state)
|
|
self.assertEqual("Like this, done", wf_ex.state_info)
|
|
|
|
def test_stop_workflow_bad_status(self):
|
|
wf_ex = self.engine.start_workflow(
|
|
'wb.wf',
|
|
wf_input={
|
|
'param1': 'Hey',
|
|
'param2': 'Hi'
|
|
},
|
|
task_name="task2"
|
|
)
|
|
|
|
# Re-read execution to access related tasks.
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
|
|
self.assertNotEqual(
|
|
'PAUSE',
|
|
self.engine.stop_workflow(wf_ex.id, 'PAUSE')
|
|
)
|
|
|
|
def test_resume_workflow(self):
|
|
# TODO(akhmerov): Implement.
|
|
pass
|
|
|
|
def test_report_running_actions(self):
|
|
wf_input = {'param1': 'Hey', 'param2': 'Hi'}
|
|
|
|
# Start workflow.
|
|
wf_ex = self.engine.start_workflow(
|
|
'wb.wf',
|
|
'',
|
|
wf_input=wf_input,
|
|
description='my execution',
|
|
task_name='task2'
|
|
)
|
|
|
|
with db_api.transaction():
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
|
|
task_execs = wf_ex.task_executions
|
|
|
|
self.assertEqual(1, len(task_execs))
|
|
|
|
task_ex = task_execs[0]
|
|
|
|
action_execs = db_api.get_action_executions(
|
|
task_execution_id=task_ex.id
|
|
)
|
|
|
|
task_action_ex = action_execs[0]
|
|
|
|
self.engine.process_action_heartbeats([])
|
|
self.engine.process_action_heartbeats([None, None])
|
|
self.engine.process_action_heartbeats([None, task_action_ex.id])
|
|
|
|
task_action_ex = db_api.get_action_execution(task_action_ex.id)
|
|
|
|
self.assertIsNotNone(task_action_ex.last_heartbeat)
|
|
|
|
|
|
class DefaultEngineWithTransportTest(eng_test_base.EngineTestCase):
|
|
def test_engine_client_remote_error(self):
|
|
mocked = mock.Mock()
|
|
mocked.sync_call.side_effect = rpc_client.RemoteError(
|
|
'InputException',
|
|
'Input is wrong'
|
|
)
|
|
self.engine_client._client = mocked
|
|
|
|
self.assertRaises(
|
|
exc.InputException,
|
|
self.engine_client.start_workflow,
|
|
'some_wf',
|
|
{},
|
|
'some_description'
|
|
)
|
|
|
|
def test_engine_client_remote_error_arbitrary(self):
|
|
mocked = mock.Mock()
|
|
mocked.sync_call.side_effect = KeyError('wrong key')
|
|
self.engine_client._client = mocked
|
|
|
|
exception = self.assertRaises(
|
|
exc.MistralException,
|
|
self.engine_client.start_workflow,
|
|
'some_wf',
|
|
{},
|
|
'some_description'
|
|
)
|
|
|
|
self.assertIn('KeyError: wrong key', str(exception))
|