924 lines
23 KiB
Python
924 lines
23 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 mock
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from oslo_config import cfg
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from oslo_log import log as logging
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from mistral.actions import std_actions
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from mistral.db.v2 import api as db_api
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from mistral.engine import policies
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from mistral import exceptions as exc
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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.engine import base
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from mistral.workbook import parser as spec_parser
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from mistral.workflow import states
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LOG = logging.getLogger(__name__)
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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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wf1:
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type: direct
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tasks:
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task1:
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action: std.echo output="Hi!"
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wait-before: 2
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wait-after: 5
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timeout: 7
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retry:
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count: 5
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delay: 10
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break-on: <% $.my_val = 10 %>
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"""
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WB_WITH_DEFAULTS = """
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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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wf1:
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type: direct
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task-defaults:
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wait-before: 2
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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.echo output="Hi!"
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wait-before: 3
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wait-after: 5
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timeout: 7
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"""
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WAIT_BEFORE_WB = """
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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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wf1:
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type: direct
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tasks:
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task1:
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action: std.echo output="Hi!"
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wait-before: 1
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"""
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WAIT_BEFORE_FROM_VAR = """
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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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wf1:
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type: direct
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input:
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- wait_before
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tasks:
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task1:
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action: std.echo output="Hi!"
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wait-before: <% $.wait_before %>
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"""
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WAIT_AFTER_WB = """
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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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wf1:
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type: direct
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tasks:
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task1:
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action: std.echo output="Hi!"
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wait-after: 2
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"""
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RETRY_WB = """
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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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wf1:
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type: direct
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tasks:
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task1:
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action: std.http url="http://some_non-existing_host"
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retry:
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count: 3
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delay: 1
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"""
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TIMEOUT_WB = """
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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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wf1:
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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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timeout: 2
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on-error:
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- task2
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task2:
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action: std.echo output="Hi!"
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timeout: 3
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"""
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TIMEOUT_WB2 = """
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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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wf1:
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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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timeout: 1
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"""
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PAUSE_BEFORE_WB = """
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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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wf1:
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type: direct
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tasks:
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task1:
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action: std.echo output="Hi!"
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pause-before: True
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on-success:
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- task2
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task2:
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action: std.echo output="Bye!"
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"""
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PAUSE_BEFORE_DELAY_WB = """
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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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wf1:
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type: direct
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tasks:
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task1:
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action: std.echo output="Hi!"
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wait-before: 1
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pause-before: true
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on-success:
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- task2
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task2:
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action: std.echo output="Bye!"
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"""
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CONCURRENCY_WB = """
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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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wf1:
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type: direct
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tasks:
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task1:
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action: std.echo output="Hi!"
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concurrency: 4
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"""
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class PoliciesTest(base.EngineTestCase):
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def setUp(self):
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super(PoliciesTest, self).setUp()
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self.wb_spec = spec_parser.get_workbook_spec_from_yaml(WORKBOOK)
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self.wf_spec = self.wb_spec.get_workflows()['wf1']
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self.task_spec = self.wf_spec.get_tasks()['task1']
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def test_build_policies(self):
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arr = policies.build_policies(
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self.task_spec.get_policies(),
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self.wf_spec
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)
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self.assertEqual(4, len(arr))
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p = self._assert_single_item(arr, delay=2)
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self.assertIsInstance(p, policies.WaitBeforePolicy)
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p = self._assert_single_item(arr, delay=5)
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self.assertIsInstance(p, policies.WaitAfterPolicy)
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p = self._assert_single_item(arr, delay=10)
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self.assertIsInstance(p, policies.RetryPolicy)
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self.assertEqual(5, p.count)
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self.assertEqual('<% $.my_val = 10 %>', p.break_on)
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p = self._assert_single_item(arr, delay=7)
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self.assertIsInstance(p, policies.TimeoutPolicy)
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def test_task_policy_class(self):
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policy = policies.base.TaskPolicy()
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policy._schema = {
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"properties": {
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"delay": {"type": "integer"}
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}
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}
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task_db = type('Task', (object,), {'in_context': {'int_var': 5}})
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policy.delay = "<% $.int_var %>"
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# Validation is ok.
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policy.before_task_start(task_db, None)
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policy.delay = "some_string"
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# Validation is failing now.
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exception = self.assertRaises(
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exc.InvalidModelException,
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policy.before_task_start, task_db, None
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)
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self.assertIn("Invalid data type in TaskPolicy", str(exception))
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def test_build_policies_with_workflow_defaults(self):
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wb_spec = spec_parser.get_workbook_spec_from_yaml(WB_WITH_DEFAULTS)
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wf_spec = wb_spec.get_workflows()['wf1']
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task_spec = wf_spec.get_tasks()['task1']
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arr = policies.build_policies(task_spec.get_policies(), wf_spec)
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self.assertEqual(4, len(arr))
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p = self._assert_single_item(arr, delay=3)
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self.assertIsInstance(p, policies.WaitBeforePolicy)
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p = self._assert_single_item(arr, delay=5)
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self.assertIsInstance(p, policies.WaitAfterPolicy)
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p = self._assert_single_item(arr, delay=1)
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self.assertIsInstance(p, policies.RetryPolicy)
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self.assertEqual(2, p.count)
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p = self._assert_single_item(arr, delay=7)
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self.assertIsInstance(p, policies.TimeoutPolicy)
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def test_wait_before_policy(self):
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wb_service.create_workbook_v2(WAIT_BEFORE_WB)
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# Start workflow.
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wf_ex = self.engine.start_workflow('wb.wf1', {})
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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_ex = wf_ex.task_executions[0]
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self.assertEqual(states.DELAYED, task_ex.state)
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self.assertDictEqual(
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{'wait_before_policy': {'skip': True}},
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task_ex.runtime_context
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)
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self._await(lambda: self.is_execution_success(wf_ex.id))
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def test_wait_before_policy_from_var(self):
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wb_service.create_workbook_v2(WAIT_BEFORE_FROM_VAR)
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# Start workflow.
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exec_db = self.engine.start_workflow('wb.wf1', {'wait_before': 1})
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# Note: We need to reread execution to access related tasks.
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exec_db = db_api.get_execution(exec_db.id)
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task_db = exec_db.task_executions[0]
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self.assertEqual(states.DELAYED, task_db.state)
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self._await(lambda: self.is_execution_success(exec_db.id))
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def test_wait_after_policy(self):
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wb_service.create_workbook_v2(WAIT_AFTER_WB)
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# Start workflow.
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wf_ex = self.engine.start_workflow('wb.wf1', {})
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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_ex = wf_ex.task_executions[0]
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self.assertEqual(states.RUNNING, task_ex.state)
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self.assertDictEqual({}, task_ex.runtime_context)
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self._await(
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lambda: self.is_task_delayed(task_ex.id),
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delay=0.5
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)
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self._await(lambda: self.is_task_success(task_ex.id))
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def test_retry_policy(self):
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wb_service.create_workbook_v2(RETRY_WB)
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# Start workflow.
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wf_ex = self.engine.start_workflow('wb.wf1', {})
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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_ex = wf_ex.task_executions[0]
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self.assertEqual(states.RUNNING, task_ex.state)
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self.assertDictEqual({}, task_ex.runtime_context)
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self._await(
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lambda: self.is_task_delayed(task_ex.id),
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delay=0.5
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)
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self._await(lambda: self.is_task_error(task_ex.id))
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self._await(lambda: self.is_execution_error(wf_ex.id))
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wf_ex = db_api.get_workflow_execution(wf_ex.id)
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task_ex = wf_ex.task_executions[0]
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self.assertEqual(
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2,
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task_ex.runtime_context["retry_task_policy"]["retry_no"]
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)
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def test_retry_policy_never_happen(self):
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retry_wb = """---
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version: '2.0'
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name: wb
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workflows:
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wf1:
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tasks:
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task1:
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action: std.echo output="hello"
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retry:
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count: 3
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delay: 1
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"""
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wb_service.create_workbook_v2(retry_wb)
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# Start workflow.
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wf_ex = self.engine.start_workflow('wb.wf1', {})
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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_ex = wf_ex.task_executions[0]
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self._await(lambda: self.is_task_success(task_ex.id))
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self._await(lambda: self.is_execution_success(wf_ex.id))
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wf_ex = db_api.get_workflow_execution(wf_ex.id)
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task_ex = wf_ex.task_executions[0]
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self.assertEqual(
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{},
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task_ex.runtime_context["retry_task_policy"]
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)
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def test_retry_policy_break_on(self):
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retry_wb = """---
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version: '2.0'
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name: wb
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workflows:
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wf1:
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input:
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- var: 4
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tasks:
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task1:
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action: std.fail
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retry:
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count: 3
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delay: 1
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break-on: <% $.var >= 3 %>
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"""
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wb_service.create_workbook_v2(retry_wb)
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# Start workflow.
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wf_ex = self.engine.start_workflow('wb.wf1', {})
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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_ex = wf_ex.task_executions[0]
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self._await(lambda: self.is_task_error(task_ex.id))
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self._await(lambda: self.is_execution_error(wf_ex.id))
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wf_ex = db_api.get_workflow_execution(wf_ex.id)
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task_ex = wf_ex.task_executions[0]
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self.assertEqual(
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{},
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task_ex.runtime_context["retry_task_policy"]
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)
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def test_retry_policy_break_on_not_happened(self):
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retry_wb = """---
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version: '2.0'
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name: wb
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workflows:
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wf1:
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input:
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- var: 2
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tasks:
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task1:
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action: std.fail
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retry:
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count: 3
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delay: 1
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break-on: <% $.var >= 3 %>
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"""
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wb_service.create_workbook_v2(retry_wb)
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# Start workflow.
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wf_ex = self.engine.start_workflow('wb.wf1', {})
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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_ex = wf_ex.task_executions[0]
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self._await(lambda: self.is_task_error(task_ex.id))
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self._await(lambda: self.is_execution_error(wf_ex.id))
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wf_ex = db_api.get_workflow_execution(wf_ex.id)
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task_ex = wf_ex.task_executions[0]
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self.assertEqual(
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2,
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task_ex.runtime_context['retry_task_policy']['retry_no']
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)
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@mock.patch.object(
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std_actions.EchoAction, 'run', mock.Mock(side_effect=[1, 2, 3, 4])
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)
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def test_retry_continue_on(self):
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retry_wb = """---
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version: '2.0'
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name: wb
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workflows:
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wf1:
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tasks:
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task1:
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action: std.echo output="mocked result"
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retry:
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count: 4
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delay: 1
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continue-on: <% $.task1 < 3 %>
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"""
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wb_service.create_workbook_v2(retry_wb)
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# Start workflow.
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wf_ex = self.engine.start_workflow('wb.wf1', {})
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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_ex = wf_ex.task_executions[0]
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self._await(lambda: self.is_task_success(task_ex.id))
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self._await(lambda: self.is_execution_success(wf_ex.id))
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wf_ex = db_api.get_workflow_execution(wf_ex.id)
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task_ex = wf_ex.task_executions[0]
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self.assertEqual(
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2,
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task_ex.runtime_context['retry_task_policy']['retry_no']
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)
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def test_retry_continue_on_not_happened(self):
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retry_wb = """---
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version: '2.0'
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name: wb
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workflows:
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wf1:
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tasks:
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task1:
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action: std.echo output=4
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retry:
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count: 4
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delay: 1
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continue-on: <% $.task1 <= 3 %>
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"""
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wb_service.create_workbook_v2(retry_wb)
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# Start workflow.
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wf_ex = self.engine.start_workflow('wb.wf1', {})
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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_ex = wf_ex.task_executions[0]
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self._await(lambda: self.is_task_success(task_ex.id))
|
|
|
|
self._await(lambda: self.is_execution_success(wf_ex.id))
|
|
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
task_ex = wf_ex.task_executions[0]
|
|
|
|
self.assertEqual(
|
|
{},
|
|
task_ex.runtime_context['retry_task_policy']
|
|
)
|
|
|
|
def test_retry_policy_one_line(self):
|
|
retry_wb = """---
|
|
version: '2.0'
|
|
|
|
name: wb
|
|
|
|
workflows:
|
|
wf1:
|
|
type: direct
|
|
|
|
tasks:
|
|
task1:
|
|
action: std.fail
|
|
retry: count=3 delay=1
|
|
"""
|
|
wb_service.create_workbook_v2(retry_wb)
|
|
|
|
# Start workflow.
|
|
wf_ex = self.engine.start_workflow('wb.wf1', {})
|
|
|
|
# Note: We need to reread execution to access related tasks.
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
task_ex = wf_ex.task_executions[0]
|
|
|
|
self._await(lambda: self.is_task_error(task_ex.id))
|
|
|
|
self._await(lambda: self.is_execution_error(wf_ex.id))
|
|
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
task_ex = wf_ex.task_executions[0]
|
|
|
|
self.assertEqual(
|
|
2,
|
|
task_ex.runtime_context['retry_task_policy']['retry_no']
|
|
)
|
|
|
|
def test_retry_policy_subworkflow_force_fail(self):
|
|
retry_wb = """---
|
|
version: '2.0'
|
|
|
|
name: wb
|
|
|
|
workflows:
|
|
main:
|
|
tasks:
|
|
task1:
|
|
workflow: work
|
|
retry:
|
|
count: 3
|
|
delay: 1
|
|
|
|
work:
|
|
tasks:
|
|
do:
|
|
action: std.fail
|
|
on-error:
|
|
- fail
|
|
"""
|
|
wb_service.create_workbook_v2(retry_wb)
|
|
|
|
# Start workflow.
|
|
wf_ex = self.engine.start_workflow('wb.main', {})
|
|
|
|
# Note: We need to reread execution to access related tasks.
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
task_ex = wf_ex.task_executions[0]
|
|
|
|
self._await(lambda: self.is_task_error(task_ex.id))
|
|
self._await(lambda: self.is_execution_error(wf_ex.id))
|
|
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
task_ex = wf_ex.task_executions[0]
|
|
|
|
self.assertEqual(
|
|
2,
|
|
task_ex.runtime_context['retry_task_policy']['retry_no']
|
|
)
|
|
|
|
@mock.patch.object(
|
|
std_actions.EchoAction,
|
|
'run',
|
|
mock.Mock(side_effect=[exc.ActionException(), "mocked result"])
|
|
)
|
|
def test_retry_policy_succeed_after_failure(self):
|
|
retry_wb = """---
|
|
version: '2.0'
|
|
|
|
name: wb
|
|
|
|
workflows:
|
|
wf1:
|
|
output:
|
|
result: <% $.task1 %>
|
|
tasks:
|
|
task1:
|
|
action: std.echo output="mocked result"
|
|
retry:
|
|
count: 3
|
|
delay: 1
|
|
"""
|
|
wb_service.create_workbook_v2(retry_wb)
|
|
|
|
# Start workflow.
|
|
wf_ex = self.engine.start_workflow('wb.wf1', {})
|
|
|
|
# Note: We need to reread execution to access related tasks.
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
task_ex = wf_ex.task_executions[0]
|
|
|
|
self._await(lambda: self.is_task_success(task_ex.id))
|
|
|
|
self._await(lambda: self.is_execution_success(wf_ex.id))
|
|
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
task_ex = wf_ex.task_executions[0]
|
|
|
|
self.assertEqual(
|
|
{},
|
|
task_ex.runtime_context['retry_task_policy']
|
|
)
|
|
|
|
self.assertDictEqual({'result': 'mocked result'}, wf_ex.output)
|
|
|
|
def test_timeout_policy(self):
|
|
wb_service.create_workbook_v2(TIMEOUT_WB)
|
|
|
|
# Start workflow.
|
|
wf_ex = self.engine.start_workflow('wb.wf1', {})
|
|
|
|
# Note: We need to reread execution to access related tasks.
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
task_ex = wf_ex.task_executions[0]
|
|
|
|
self.assertEqual(states.RUNNING, task_ex.state)
|
|
|
|
self._await(lambda: self.is_task_error(task_ex.id))
|
|
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
task_ex = self._assert_single_item(
|
|
wf_ex.task_executions,
|
|
name='task1'
|
|
)
|
|
|
|
self._await(lambda: self.is_execution_success(wf_ex.id))
|
|
|
|
def test_timeout_policy_success_after_timeout(self):
|
|
wb_service.create_workbook_v2(TIMEOUT_WB2)
|
|
|
|
# Start workflow.
|
|
wf_ex = self.engine.start_workflow('wb.wf1', {})
|
|
|
|
# Note: We need to reread execution to access related tasks.
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
task_ex = wf_ex.task_executions[0]
|
|
|
|
self.assertEqual(states.RUNNING, task_ex.state)
|
|
|
|
self._await(lambda: self.is_execution_error(wf_ex.id))
|
|
|
|
# Wait until timeout exceeds.
|
|
self._sleep(1)
|
|
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
tasks_db = wf_ex.task_executions
|
|
|
|
# Make sure that engine did not create extra tasks.
|
|
self.assertEqual(1, len(tasks_db))
|
|
|
|
def test_pause_before_policy(self):
|
|
wb_service.create_workbook_v2(PAUSE_BEFORE_WB)
|
|
|
|
# Start workflow.
|
|
wf_ex = self.engine.start_workflow('wb.wf1', {})
|
|
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
task_ex = self._assert_single_item(
|
|
wf_ex.task_executions,
|
|
name='task1'
|
|
)
|
|
|
|
self.assertEqual(states.IDLE, task_ex.state)
|
|
|
|
self._await(lambda: self.is_execution_paused(wf_ex.id))
|
|
self._sleep(1)
|
|
self.engine.resume_workflow(wf_ex.id)
|
|
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
self._assert_single_item(wf_ex.task_executions, name='task1')
|
|
|
|
self._await(lambda: self.is_execution_success(wf_ex.id))
|
|
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
task_ex = self._assert_single_item(
|
|
wf_ex.task_executions,
|
|
name='task1'
|
|
)
|
|
next_task_ex = self._assert_single_item(
|
|
wf_ex.task_executions,
|
|
name='task2'
|
|
)
|
|
|
|
self.assertEqual(states.SUCCESS, task_ex.state)
|
|
self.assertEqual(states.SUCCESS, next_task_ex.state)
|
|
|
|
def test_pause_before_with_delay_policy(self):
|
|
wb_service.create_workbook_v2(PAUSE_BEFORE_DELAY_WB)
|
|
|
|
# Start workflow.
|
|
wf_ex = self.engine.start_workflow('wb.wf1', {})
|
|
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
task_ex = self._assert_single_item(
|
|
wf_ex.task_executions,
|
|
name='task1'
|
|
)
|
|
|
|
self.assertEqual(states.IDLE, task_ex.state)
|
|
|
|
# Verify wf paused by pause-before
|
|
self._await(lambda: self.is_execution_paused(wf_ex.id))
|
|
|
|
# Allow wait-before to expire
|
|
self._sleep(2)
|
|
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
|
|
# Verify wf still paused (wait-before didn't reactivate)
|
|
self._await(lambda: self.is_execution_paused(wf_ex.id))
|
|
|
|
task_ex = db_api.get_task_execution(task_ex.id)
|
|
self.assertEqual(states.IDLE, task_ex.state)
|
|
|
|
self.engine.resume_workflow(wf_ex.id)
|
|
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
self._assert_single_item(wf_ex.task_executions, name='task1')
|
|
|
|
self._await(lambda: self.is_execution_success(wf_ex.id))
|
|
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
task_ex = self._assert_single_item(
|
|
wf_ex.task_executions,
|
|
name='task1'
|
|
)
|
|
next_task_ex = self._assert_single_item(
|
|
wf_ex.task_executions,
|
|
name='task2'
|
|
)
|
|
|
|
self.assertEqual(states.SUCCESS, task_ex.state)
|
|
self.assertEqual(states.SUCCESS, next_task_ex.state)
|
|
|
|
def test_concurrency_is_in_runtime_context(self):
|
|
wb_service.create_workbook_v2(CONCURRENCY_WB)
|
|
|
|
# Start workflow.
|
|
wf_ex = self.engine.start_workflow('wb.wf1', {})
|
|
|
|
self._await(lambda: self.is_execution_success(wf_ex.id))
|
|
|
|
wf_ex = db_api.get_workflow_execution(wf_ex.id)
|
|
task_ex = self._assert_single_item(
|
|
wf_ex.task_executions,
|
|
name='task1'
|
|
)
|
|
|
|
self.assertEqual(states.SUCCESS, task_ex.state)
|
|
|
|
runtime_context = task_ex.runtime_context
|
|
|
|
self.assertEqual(4, runtime_context['concurrency'])
|
|
|
|
def test_wrong_policy_prop_type(self):
|
|
wb = """---
|
|
version: "2.0"
|
|
name: wb
|
|
workflows:
|
|
wf1:
|
|
type: direct
|
|
input:
|
|
- wait_before
|
|
tasks:
|
|
task1:
|
|
action: std.echo output="Hi!"
|
|
wait-before: <% $.wait_before %>
|
|
"""
|
|
wb_service.create_workbook_v2(wb)
|
|
|
|
# Start workflow.
|
|
exception = self.assertRaises(
|
|
exc.InvalidModelException,
|
|
self.engine.start_workflow,
|
|
'wb.wf1', {'wait_before': '1'}
|
|
)
|
|
|
|
self.assertIn('Invalid data type in WaitBeforePolicy', str(exception))
|
|
|
|
def test_delayed_task_and_correct_finish_workflow(self):
|
|
wf_delayed_state = """---
|
|
version: "2.0"
|
|
wf:
|
|
type: direct
|
|
tasks:
|
|
|
|
task1:
|
|
action: std.noop
|
|
wait-before: 1
|
|
|
|
task2:
|
|
action: std.noop
|
|
"""
|
|
wf_service.create_workflows(wf_delayed_state)
|
|
|
|
# Start workflow.
|
|
wf_ex = self.engine.start_workflow('wf', {})
|
|
|
|
self._await(lambda: self.is_execution_success(wf_ex.id))
|
|
|
|
# Note: We need to reread execution to access related tasks.
|
|
wf_ex = db_api.get_execution(wf_ex.id)
|
|
|
|
self.assertEqual(2, len(wf_ex.task_executions))
|