mistral/mistral/tests/unit/engine/test_with_items.py

1374 lines
37 KiB
Python

# Copyright 2015 - Mirantis, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import copy
import mock
from oslo_config import cfg
from mistral.actions import std_actions
from mistral import config
from mistral.db.v2 import api as db_api
from mistral import exceptions as exc
from mistral.services import workbooks as wb_service
from mistral.services import workflows as wf_service
from mistral.tests.unit import base as test_base
from mistral.tests.unit.engine import base
from mistral import utils
from mistral.workflow import data_flow
from mistral.workflow import states
from mistral_lib import actions as actions_base
# TODO(nmakhotkin) Need to write more tests.
# Use the set_default method to set value otherwise in certain test cases
# the change in value is not permanent.
cfg.CONF.set_default('auth_enable', False, group=config.PECAN_GROUP)
cfg.CONF.set_default('max_missed_heartbeats', 0,
group=config.ACTION_HEARTBEAT_GROUP)
WB = """
---
version: "2.0"
name: wb
workflows:
wf:
input:
- names_info
tasks:
task1:
with-items: name_info in <% $.names_info %>
action: std.echo output=<% $.name_info.name %>
publish:
result: <% task(task1).result[0] %>
"""
WB_WITH_STATIC_VAR = """
---
version: "2.0"
name: wb
workflows:
wf:
input:
- names_info
- greeting
tasks:
task1:
with-items: name_info in <% $.names_info %>
action: std.echo output="<% $.greeting %>, <% $.name_info.name %>!"
publish:
result: <% task(task1).result %>
"""
WB_MULTI_ARRAY = """
---
version: "2.0"
name: wb
workflows:
wf:
input:
- arrayI
- arrayJ
tasks:
task1:
with-items:
- itemX in <% $.arrayI %>
- itemY in <% $.arrayJ %>
action: std.echo output="<% $.itemX %> <% $.itemY %>"
publish:
result: <% task(task1).result %>
"""
WB_ACTION_CONTEXT = """
---
version: "2.0"
name: wb
workflows:
wf:
input:
- items
tasks:
task1:
with-items: item in <% $.items %>
action: std.async_noop
"""
WF_INPUT = {
'names_info': [
{'name': 'John'},
{'name': 'Ivan'},
{'name': 'Mistral'}
]
}
WF_INPUT_ONE_ITEM = {
'names_info': [
{'name': 'Guy'}
]
}
class RandomSleepEchoAction(actions_base.Action):
def __init__(self, output):
self.output = output
def run(self, context):
utils.random_sleep(1)
return self.output
def test(self):
utils.random_sleep(1)
class WithItemsEngineTest(base.EngineTestCase):
@staticmethod
def _get_incomplete_action(task_ex_id):
with db_api.transaction():
task_ex = db_api.get_task_execution(task_ex_id)
return [e for e in task_ex.executions if not e.accepted][0]
@staticmethod
def _get_running_actions_count(task_ex_id):
with db_api.transaction():
task_ex = db_api.get_task_execution(task_ex_id)
return len(
[e for e in task_ex.executions if e.state == states.RUNNING]
)
@staticmethod
def _action_result_equals(action_ex_id, output):
with db_api.transaction():
a_ex = db_api.get_action_execution(action_ex_id)
return a_ex.output == output
def test_with_items_simple(self):
wb_service.create_workbook_v2(WB)
# Start workflow.
wf_ex = self.engine.start_workflow('wb.wf', wf_input=WF_INPUT)
self.await_workflow_success(wf_ex.id)
with db_api.transaction():
# Note: We need to reread execution to access related tasks.
wf_ex = db_api.get_workflow_execution(wf_ex.id)
task_execs = wf_ex.task_executions
task1_ex = self._assert_single_item(task_execs, name='task1')
with_items_ctx = task1_ex.runtime_context['with_items']
self.assertEqual(3, with_items_ctx['count'])
# Since we know that we can receive results in random order,
# check is not depend on order of items.
with db_api.transaction():
task1_ex = db_api.get_task_execution(task1_ex.id)
result = data_flow.get_task_execution_result(task1_ex)
self.assertIsInstance(result, list)
self.assertIn('John', result)
self.assertIn('Ivan', result)
self.assertIn('Mistral', result)
published = task1_ex.published
self.assertIn(published['result'], ['John', 'Ivan', 'Mistral'])
self.assertEqual(1, len(task_execs))
self.assertEqual(states.SUCCESS, task1_ex.state)
def test_with_items_fail(self):
wf_text = """---
version: "2.0"
wf:
type: direct
tasks:
task1:
with-items: i in [1, 2, 3]
action: std.fail
on-error: task2
task2:
action: std.echo output="With-items failed"
"""
wf_service.create_workflows(wf_text)
# Start workflow.
wf_ex = self.engine.start_workflow('wf')
self.await_workflow_success(wf_ex.id)
with db_api.transaction():
# Note: We need to reread execution to access related tasks.
wf_ex = db_api.get_workflow_execution(wf_ex.id)
self.assertEqual(2, len(wf_ex.task_executions))
def test_with_items_yaql_fail(self):
wf_text = """---
version: "2.0"
wf:
type: direct
tasks:
task1:
with-items: i in <% $.foobar %>
action: std.noop
"""
wf_service.create_workflows(wf_text)
# Start workflow.
wf_ex = self.engine.start_workflow('wf')
self.await_workflow_error(wf_ex.id)
with db_api.transaction():
# Note: We need to reread execution to access related tasks.
wf_ex = db_api.get_workflow_execution(wf_ex.id)
tasks = wf_ex.task_executions
task1 = self._assert_single_item(tasks, name='task1')
result = data_flow.get_task_execution_result(task1)
self.assertEqual(states.ERROR, task1.state)
self.assertIsInstance(result, list)
self.assertListEqual(result, [])
def test_with_items_sub_workflow_fail(self):
wb_text = """---
version: "2.0"
name: wb1
workflows:
wf:
type: direct
tasks:
task1:
with-items: i in [1, 2, 3]
workflow: subwf
on-error: task2
task2:
action: std.echo output="With-items failed"
subwf:
type: direct
tasks:
fail-task:
action: std.fail
"""
wb_service.create_workbook_v2(wb_text)
# Start workflow.
wf_ex = self.engine.start_workflow('wb1.wf')
self.await_workflow_success(wf_ex.id)
with db_api.transaction():
# Note: We need to reread execution to access related tasks.
wf_ex = db_api.get_workflow_execution(wf_ex.id)
self.assertEqual(2, len(wf_ex.task_executions))
def test_with_items_static_var(self):
wb_service.create_workbook_v2(WB_WITH_STATIC_VAR)
wf_input = copy.deepcopy(WF_INPUT)
wf_input.update({'greeting': 'Hello'})
# Start workflow.
wf_ex = self.engine.start_workflow('wb.wf', wf_input=wf_input)
self.await_workflow_success(wf_ex.id)
with db_api.transaction():
# Note: We need to reread execution to access related tasks.
wf_ex = db_api.get_workflow_execution(wf_ex.id)
tasks = wf_ex.task_executions
task1 = self._assert_single_item(tasks, name='task1')
result = data_flow.get_task_execution_result(task1)
self.assertIsInstance(result, list)
self.assertIn('Hello, John!', result)
self.assertIn('Hello, Ivan!', result)
self.assertIn('Hello, Mistral!', result)
self.assertEqual(1, len(tasks))
self.assertEqual(states.SUCCESS, task1.state)
def test_with_items_multi_array(self):
wb_service.create_workbook_v2(WB_MULTI_ARRAY)
wf_input = {'arrayI': ['a', 'b', 'c'], 'arrayJ': [1, 2, 3]}
# Start workflow.
wf_ex = self.engine.start_workflow('wb.wf', wf_input=wf_input)
self.await_workflow_success(wf_ex.id)
with db_api.transaction():
# Note: We need to reread execution to access related tasks.
wf_ex = db_api.get_workflow_execution(wf_ex.id)
task_execs = wf_ex.task_executions
task1_ex = self._assert_single_item(task_execs, name='task1')
# Since we know that we can receive results in random order,
# check is not depend on order of items.
result = data_flow.get_task_execution_result(task1_ex)
self.assertIsInstance(result, list)
self.assertIn('a 1', result)
self.assertIn('b 2', result)
self.assertIn('c 3', result)
self.assertEqual(1, len(task_execs))
self.assertEqual(states.SUCCESS, task1_ex.state)
def test_with_items_action_context(self):
# TODO(rakhmerov): Seems like the name of the test is not valid
# anymore since there's nothing related to action context in it.
# We need to revisit and refactor the entire module.
wb_service.create_workbook_v2(WB_ACTION_CONTEXT)
# Start workflow.
wf_ex = self.engine.start_workflow(
'wb.wf',
wf_input={'items': [1, 2, 3]}
)
with db_api.transaction():
wf_ex = db_api.get_workflow_execution(wf_ex.id)
task_ex = wf_ex.task_executions[0]
act_exs = task_ex.executions
self.engine.on_action_complete(
act_exs[0].id,
actions_base.Result("Ivan")
)
self.engine.on_action_complete(
act_exs[1].id,
actions_base.Result("John")
)
self.engine.on_action_complete(
act_exs[2].id,
actions_base.Result("Mistral")
)
self.await_workflow_success(wf_ex.id)
with db_api.transaction():
task_ex = db_api.get_task_execution(task_ex.id)
result = data_flow.get_task_execution_result(task_ex)
self.assertIsInstance(result, list)
self.assertIn('John', result)
self.assertIn('Ivan', result)
self.assertIn('Mistral', result)
self.assertEqual(states.SUCCESS, task_ex.state)
def test_with_items_empty_list(self):
wb_text = """---
version: "2.0"
name: wb1
workflows:
with_items:
type: direct
input:
- names_info
tasks:
task1:
with-items: name_info in <% $.names_info %>
action: std.echo output=<% $.name_info.name %>
on-success:
- task2
task2:
action: std.echo output="Hi!"
"""
wb_service.create_workbook_v2(wb_text)
# Start workflow.
wf_input = {'names_info': []}
wf_ex = self.engine.start_workflow('wb1.with_items', wf_input=wf_input)
self.await_workflow_success(wf_ex.id)
with db_api.transaction():
# Note: We need to reread execution to access related tasks.
wf_ex = db_api.get_workflow_execution(wf_ex.id)
task_execs = wf_ex.task_executions
task1_ex = self._assert_single_item(task_execs, name='task1')
task2_ex = self._assert_single_item(task_execs, name='task2')
self.assertEqual(2, len(task_execs))
self.assertEqual(states.SUCCESS, task1_ex.state)
self.assertEqual(states.SUCCESS, task2_ex.state)
def test_with_items_plain_list(self):
wb_text = """---
version: "2.0"
name: wb1
workflows:
with_items:
type: direct
tasks:
task1:
with-items: i in [1, 2, 3]
action: std.echo output=<% $.i %>
"""
wb_service.create_workbook_v2(wb_text)
# Start workflow.
wf_ex = self.engine.start_workflow('wb1.with_items')
self.await_workflow_success(wf_ex.id)
with db_api.transaction():
# Note: We need to reread execution to access related tasks.
wf_ex = db_api.get_workflow_execution(wf_ex.id)
task1_ex = self._assert_single_item(
wf_ex.task_executions,
name='task1',
state=states.SUCCESS
)
result = data_flow.get_task_execution_result(task1_ex)
# Since we know that we can receive results in random order,
# check is not depend on order of items.
self.assertIn(1, result)
self.assertIn(2, result)
self.assertIn(3, result)
def test_with_items_plain_list_wrong(self):
wb_text = """---
version: "2.0"
name: wb1
workflows:
with_items:
type: direct
tasks:
task1:
with-items: i in [1,,3]
action: std.echo output=<% $.i %>
"""
exception = self.assertRaises(
exc.InvalidModelException,
wb_service.create_workbook_v2, wb_text
)
self.assertIn("Invalid array in 'with-items'", str(exception))
def test_with_items_results_order(self):
wb_text = """---
version: "2.0"
name: wb1
workflows:
with_items:
type: direct
tasks:
task1:
with-items: i in [1, 2, 3]
action: sleep_echo output=<% $.i %>
publish:
one_two_three: <% task(task1).result %>
"""
# Register random sleep action in the DB.
test_base.register_action_class('sleep_echo', RandomSleepEchoAction)
wb_service.create_workbook_v2(wb_text)
# Start workflow.
wf_ex = self.engine.start_workflow('wb1.with_items')
self.await_workflow_success(wf_ex.id)
with db_api.transaction():
# Note: We need to reread execution to access related tasks.
wf_ex = db_api.get_workflow_execution(wf_ex.id)
task_execs = wf_ex.task_executions
task1_ex = self._assert_single_item(
task_execs,
name='task1',
state=states.SUCCESS
)
published = task1_ex.published
# Now we can check order of results explicitly.
self.assertEqual([1, 2, 3], published['one_two_three'])
def test_with_items_results_one_item_as_list(self):
wb_service.create_workbook_v2(WB)
# Start workflow.
wf_ex = self.engine.start_workflow('wb.wf', wf_input=WF_INPUT_ONE_ITEM)
self.await_workflow_success(wf_ex.id)
with db_api.transaction():
# Note: We need to reread execution to access related tasks.
wf_ex = db_api.get_workflow_execution(wf_ex.id)
task_execs = wf_ex.task_executions
self.assertEqual(1, len(task_execs))
task1_ex = self._assert_single_item(
task_execs,
name='task1',
state=states.SUCCESS
)
result = data_flow.get_task_execution_result(task1_ex)
self.assertIsInstance(result, list)
self.assertIn('Guy', result)
self.assertIn(task1_ex.published['result'], ['Guy'])
def test_with_items_concurrency_1(self):
wf_with_concurrency_1 = """---
version: "2.0"
wf:
input:
- names: ["John", "Ivan", "Mistral"]
tasks:
task1:
action: std.async_noop
with-items: name in <% $.names %>
concurrency: 1
"""
wf_service.create_workflows(wf_with_concurrency_1)
# Start workflow.
wf_ex = self.engine.start_workflow('wf')
with db_api.transaction():
wf_ex = db_api.get_workflow_execution(wf_ex.id)
# Also initialize lazy collections.
task_ex = wf_ex.task_executions[0]
self.assertEqual(1, self._get_running_actions_count(task_ex.id))
# 1st iteration complete.
action_ex_id = self._get_incomplete_action(task_ex.id).id
self.engine.on_action_complete(
action_ex_id,
actions_base.Result("John")
)
# Wait till the delayed on_action_complete is processed.
self._await(
lambda:
self._action_result_equals(action_ex_id, {'result': 'John'})
)
self._await(lambda: self._get_running_actions_count(task_ex.id) == 1)
# 2nd iteration complete.
action_ex_id = self._get_incomplete_action(task_ex.id).id
self.engine.on_action_complete(
action_ex_id,
actions_base.Result("Ivan")
)
self._await(
lambda:
self._action_result_equals(action_ex_id, {'result': 'Ivan'})
)
self._await(lambda: self._get_running_actions_count(task_ex.id) == 1)
# 3rd iteration complete.
action_ex_id = self._get_incomplete_action(task_ex.id).id
self.engine.on_action_complete(
action_ex_id,
actions_base.Result("Mistral")
)
self._await(
lambda:
self._action_result_equals(action_ex_id, {'result': 'Mistral'})
)
task_ex = db_api.get_task_execution(task_ex.id)
self.await_workflow_success(wf_ex.id)
# Since we know that we can receive results in random order,
# the check does not depend on order of items.
with db_api.transaction():
task_ex = db_api.get_task_execution(task_ex.id)
result = data_flow.get_task_execution_result(task_ex)
self.assertIsInstance(result, list)
self.assertIn('John', result)
self.assertIn('Ivan', result)
self.assertIn('Mistral', result)
self.assertEqual(states.SUCCESS, task_ex.state)
def test_with_items_concurrency_yaql(self):
# TODO(rakhmerov): This test passes even with broken 'concurrency'.
# The idea of the test is not fully clear.
wf_text = """---
version: "2.0"
wf:
type: direct
input:
- names: ["John", "Ivan", "Mistral"]
- concurrency
tasks:
task1:
action: std.echo output=<% $.name %>
with-items: name in <% $.names %>
concurrency: <% $.concurrency %>
"""
wf_service.create_workflows(wf_text)
# Start workflow.
wf_ex = self.engine.start_workflow('wf', wf_input={'concurrency': 2})
self.await_workflow_success(wf_ex.id)
with db_api.transaction():
wf_ex = db_api.get_workflow_execution(wf_ex.id)
task_ex = wf_ex.task_executions[0]
self.assertEqual(states.SUCCESS, task_ex.state)
result = data_flow.get_task_execution_result(task_ex)
self.assertIsInstance(result, list)
# Since we know that we can receive results in random order,
# the check does not depend on order of items.
self.assertIn('John', result)
self.assertIn('Ivan', result)
self.assertIn('Mistral', result)
def test_with_items_concurrency_yaql_wrong_type(self):
wf_with_concurrency_yaql = """---
version: "2.0"
wf:
type: direct
input:
- names: ["John", "Ivan", "Mistral"]
- concurrency
tasks:
task1:
action: std.echo output=<% $.name %>
with-items: name in <% $.names %>
concurrency: <% $.concurrency %>
"""
wf_service.create_workflows(wf_with_concurrency_yaql)
# Start workflow.
wf_ex = self.engine.start_workflow('wf', wf_input={'concurrency': '2'})
self.assertIn(
'Invalid data type in ConcurrencyPolicy',
wf_ex.state_info
)
self.assertEqual(states.ERROR, wf_ex.state)
def test_with_items_concurrency_2(self):
wf_with_concurrency_2 = """---
version: "2.0"
wf:
type: direct
input:
- names: ["John", "Ivan", "Mistral", "Hello"]
tasks:
task1:
action: std.async_noop
with-items: name in <% $.names %>
concurrency: 2
"""
wf_service.create_workflows(wf_with_concurrency_2)
# Start workflow.
wf_ex = self.engine.start_workflow('wf')
with db_api.transaction():
wf_ex = db_api.get_workflow_execution(wf_ex.id)
task_ex = wf_ex.task_executions[0]
self.assertEqual(2, self._get_running_actions_count(task_ex.id))
# 1st iteration complete.
action_ex_id = self._get_incomplete_action(task_ex.id).id
self.engine.on_action_complete(
action_ex_id,
actions_base.Result("John")
)
# Wait till the delayed on_action_complete is processed.
self._await(
lambda:
self._action_result_equals(action_ex_id, {'result': 'John'})
)
self._await(lambda: self._get_running_actions_count(task_ex.id) == 2)
# 2nd iteration complete.
action_ex_id = self._get_incomplete_action(task_ex.id).id
self.engine.on_action_complete(
action_ex_id,
actions_base.Result("Ivan")
)
self._await(
lambda:
self._action_result_equals(action_ex_id, {'result': 'Ivan'})
)
self._await(lambda: self._get_running_actions_count(task_ex.id) == 2)
# 3rd iteration complete.
action_ex_id = self._get_incomplete_action(task_ex.id).id
self.engine.on_action_complete(
action_ex_id,
actions_base.Result("Mistral")
)
self._await(
lambda:
self._action_result_equals(action_ex_id, {'result': 'Mistral'})
)
incomplete_action = self._get_incomplete_action(task_ex.id)
# 4th iteration complete.
self.engine.on_action_complete(
incomplete_action.id,
actions_base.Result("Hello")
)
self._await(
lambda: self._action_result_equals(
incomplete_action.id,
{'result': 'Hello'}
)
)
task_ex = db_api.get_task_execution(task_ex.id)
self.await_workflow_success(wf_ex.id)
# Since we know that we can receive results in random order,
# check is not depend on order of items.
with db_api.transaction():
task_ex = db_api.get_task_execution(task_ex.id)
result = data_flow.get_task_execution_result(task_ex)
self.assertIsInstance(result, list)
self.assertIn('John', result)
self.assertIn('Ivan', result)
self.assertIn('Mistral', result)
self.assertIn('Hello', result)
self.assertEqual(states.SUCCESS, task_ex.state)
def test_with_items_concurrency_2_fail(self):
wf_with_concurrency_2_fail = """---
version: "2.0"
concurrency_test_fail:
type: direct
tasks:
task1:
with-items: i in [1, 2, 3, 4]
action: std.fail
concurrency: 2
on-error: task2
task2:
action: std.echo output="With-items failed"
"""
wf_service.create_workflows(wf_with_concurrency_2_fail)
# Start workflow.
wf_ex = self.engine.start_workflow('concurrency_test_fail')
self.await_workflow_success(wf_ex.id)
with db_api.transaction():
wf_ex = db_api.get_workflow_execution(wf_ex.id)
task_exs = wf_ex.task_executions
self.assertEqual(2, len(task_exs))
task_2 = self._assert_single_item(task_exs, name='task2')
with db_api.transaction():
task_2 = db_api.get_task_execution(task_2.id)
result = data_flow.get_task_execution_result(task_2)
self.assertEqual('With-items failed', result)
def test_with_items_concurrency_3(self):
wf_with_concurrency_3 = """---
version: "2.0"
concurrency_test:
type: direct
input:
- names: ["John", "Ivan", "Mistral"]
tasks:
task1:
action: std.async_noop
with-items: name in <% $.names %>
concurrency: 3
"""
wf_service.create_workflows(wf_with_concurrency_3)
# Start workflow.
wf_ex = self.engine.start_workflow('concurrency_test')
with db_api.transaction():
wf_ex = db_api.get_workflow_execution(wf_ex.id)
task_ex = wf_ex.task_executions[0]
self.assertEqual(3, self._get_running_actions_count(task_ex.id))
# 1st iteration complete.
action_ex_id = self._get_incomplete_action(task_ex.id).id
self.engine.on_action_complete(
action_ex_id,
actions_base.Result("John")
)
# Wait till the delayed on_action_complete is processed.
self._await(
lambda:
self._action_result_equals(action_ex_id, {'result': 'John'})
)
incomplete_action = self._get_incomplete_action(task_ex.id)
# 2nd iteration complete.
self.engine.on_action_complete(
incomplete_action.id,
actions_base.Result("Ivan")
)
self._await(
lambda:
self._action_result_equals(
incomplete_action.id,
{'result': 'Ivan'}
)
)
incomplete_action = self._get_incomplete_action(task_ex.id)
# 3rd iteration complete.
self.engine.on_action_complete(
incomplete_action.id,
actions_base.Result("Mistral")
)
self._await(
lambda:
self._action_result_equals(
incomplete_action.id,
{'result': 'Mistral'}
)
)
task_ex = db_api.get_task_execution(task_ex.id)
self.await_workflow_success(wf_ex.id)
with db_api.transaction():
task_ex = db_api.get_task_execution(task_ex.id)
self.assertEqual(states.SUCCESS, task_ex.state)
# Since we know that we can receive results in random order,
# check is not depend on order of items.
result = data_flow.get_task_execution_result(task_ex)
self.assertIsInstance(result, list)
self.assertIn('John', result)
self.assertIn('Ivan', result)
self.assertIn('Mistral', result)
def test_with_items_concurrency_gt_list_length(self):
# TODO(rakhmerov): This test passes even with disabled 'concurrency'
# support. Make sure it's valid.
wf_definition = """---
version: "2.0"
concurrency_test:
type: direct
input:
- names: ["John", "Ivan"]
tasks:
task1:
with-items: name in <% $.names %>
action: std.echo output=<% $.name %>
concurrency: 3
"""
wf_service.create_workflows(wf_definition)
# Start workflow.
wf_ex = self.engine.start_workflow('concurrency_test')
self.await_workflow_success(wf_ex.id)
with db_api.transaction():
wf_ex = db_api.get_workflow_execution(wf_ex.id)
task_execs = wf_ex.task_executions
task_ex = self._assert_single_item(
task_execs,
name='task1',
state=states.SUCCESS
)
result = data_flow.get_task_execution_result(task_ex)
self.assertIsInstance(result, list)
self.assertIn('John', result)
self.assertIn('Ivan', result)
def test_with_items_retry_policy(self):
wf_text = """---
version: "2.0"
with_items_retry:
tasks:
task1:
with-items: i in [1, 2]
action: std.fail
retry:
count: 1
delay: 1
on-error: task2
task2:
action: std.echo output="With-items failed"
"""
wf_service.create_workflows(wf_text)
# Start workflow.
wf_ex = self.engine.start_workflow('with_items_retry')
self.await_workflow_success(wf_ex.id)
with db_api.transaction():
# Note: We need to reread execution to access related tasks.
wf_ex = db_api.get_workflow_execution(wf_ex.id)
task_execs = wf_ex.task_executions
self.assertEqual(2, len(task_execs))
task1_ex = self._assert_single_item(task_execs, name='task1')
task1_executions = task1_ex.executions
self.assertEqual(
1,
task1_ex.runtime_context['retry_task_policy']['retry_no']
)
self.assertEqual(4, len(task1_executions))
self._assert_multiple_items(task1_executions, 2, accepted=True)
def test_with_items_concurrency_retry_policy(self):
wf_text = """---
version: "2.0"
wf:
tasks:
task1:
with-items: i in [1, 2]
action: std.fail
retry:
count: 2
delay: 1
concurrency: 2
on-error: task2
task2:
action: std.echo output="With-items failed"
"""
wf_service.create_workflows(wf_text)
# Start workflow.
wf_ex = self.engine.start_workflow('wf')
self.await_workflow_success(wf_ex.id)
with db_api.transaction():
wf_ex = db_api.get_workflow_execution(wf_ex.id)
task_execs = wf_ex.task_executions
self.assertEqual(2, len(task_execs))
task1_ex = self._assert_single_item(task_execs, name='task1')
with db_api.transaction():
task1_ex = db_api.get_task_execution(task1_ex.id)
task1_execs = task1_ex.executions
self.assertEqual(6, len(task1_execs))
self._assert_multiple_items(task1_execs, 2, accepted=True)
def test_with_items_env(self):
wf_text = """---
version: "2.0"
wf:
tasks:
task1:
with-items: i in [1, 2, 3, 4]
action: std.echo output="<% $.i %>.<% env().name %>"
"""
wf_service.create_workflows(wf_text)
# Start workflow.
wf_ex = self.engine.start_workflow('wf', env={'name': 'Mistral'})
self.await_workflow_success(wf_ex.id)
with db_api.transaction():
# Note: We need to reread execution to access related tasks.
wf_ex = db_api.get_workflow_execution(wf_ex.id)
task1 = self._assert_single_item(
wf_ex.task_executions,
name='task1'
)
result = data_flow.get_task_execution_result(task1)
self.assertEqual(
[
"1.Mistral",
"2.Mistral",
"3.Mistral",
"4.Mistral"
],
result
)
self.assertEqual(states.SUCCESS, task1.state)
def test_with_items_two_tasks_second_starts_on_success(self):
wb_text = """---
version: "2.0"
name: wb1
workflows:
with_items:
type: direct
tasks:
task1:
with-items: i in [1, 2]
action: std.echo output=<% $.i %>
on-success: task2
task2:
with-items: i in [3, 4]
action: std.echo output=<% $.i %>
"""
wb_service.create_workbook_v2(wb_text)
# Start workflow.
wf_ex = self.engine.start_workflow('wb1.with_items')
self.await_workflow_success(wf_ex.id)
with db_api.transaction():
# Note: We need to reread execution to access related tasks.
wf_ex = db_api.get_workflow_execution(wf_ex.id)
task_execs = wf_ex.task_executions
task1_ex = self._assert_single_item(
task_execs,
name='task1',
state=states.SUCCESS
)
task2_ex = self._assert_single_item(
task_execs,
name='task2',
state=states.SUCCESS
)
with db_api.transaction():
task1_ex = db_api.get_task_execution(task1_ex.id)
task2_ex = db_api.get_task_execution(task2_ex.id)
result_task1 = data_flow.get_task_execution_result(task1_ex)
result_task2 = data_flow.get_task_execution_result(task2_ex)
# Since we know that we can receive results in random order,
# check is not depend on order of items.
self.assertIn(1, result_task1)
self.assertIn(2, result_task1)
self.assertIn(3, result_task2)
self.assertIn(4, result_task2)
def test_with_items_subflow_concurrency_gt_list_length(self):
wb_text = """---
version: "2.0"
name: wb1
workflows:
main:
type: direct
input:
- names
tasks:
task1:
with-items: name in <% $.names %>
workflow: subflow1 name=<% $.name %>
concurrency: 3
subflow1:
type: direct
input:
- name
output:
result: <% task(task1).result %>
tasks:
task1:
action: std.echo output=<% $.name %>
"""
wb_service.create_workbook_v2(wb_text)
# Start workflow.
names = ["Peter", "Susan", "Edmund", "Lucy", "Aslan", "Caspian"]
wf_ex = self.engine.start_workflow(
'wb1.main',
wf_input={'names': names}
)
self.await_workflow_success(wf_ex.id)
with db_api.transaction():
wf_ex = db_api.get_workflow_execution(wf_ex.id)
task_execs = wf_ex.task_executions
task_ex = self._assert_single_item(
task_execs,
name='task1',
state=states.SUCCESS
)
with db_api.transaction():
task_ex = db_api.get_task_execution(task_ex.id)
task_result = data_flow.get_task_execution_result(task_ex)
result = [item['result'] for item in task_result]
self.assertListEqual(sorted(result), sorted(names))
@mock.patch.object(std_actions.HTTPAction, 'run')
def test_with_items_and_adhoc_action(self, mock_http_action):
mock_http_action.return_value = ''
wb_text = """---
version: "2.0"
name: test
actions:
http:
input:
- url: http://www.example.com
- method: GET
- timeout: 10
output: <% $.content %>
base: std.http
base-input:
url: <% $.url %>
method: <% $.method %>
timeout: <% $.timeout %>
workflows:
with_items_default_bug:
description: Re-create the with-items bug with default values
type: direct
tasks:
get_pages:
with-items: page in <% range(0, 1) %>
action: test.http
input:
url: http://www.example.com
method: GET
on-success:
- well_done
well_done:
action: std.echo output="Well done"
"""
wb_service.create_workbook_v2(wb_text)
# Start workflow.
wf_ex = self.engine.start_workflow('test.with_items_default_bug')
self.await_workflow_success(wf_ex.id)
with db_api.transaction():
# Note: We need to reread execution to access related tasks.
wf_ex = db_api.get_workflow_execution(wf_ex.id)
task_execs = wf_ex.task_executions
task1_ex = self._assert_single_item(task_execs, name='get_pages')
task2_ex = self._assert_single_item(task_execs, name='well_done')
self.assertEqual(2, len(task_execs))
self.assertEqual(states.SUCCESS, task1_ex.state)
self.assertEqual(states.SUCCESS, task2_ex.state)
self.assertEqual(1, mock_http_action.call_count)