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

1172 lines
31 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
from oslo_config import cfg
from mistral.actions import base as action_base
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.workflow import utils as wf_utils
# 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='pecan')
WB = """
---
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 %>
publish:
result: <% $.task1[0] %>
"""
WB_WITH_STATIC_VAR = """
---
version: "2.0"
name: wb1
workflows:
with_items:
type: direct
input:
- names_info
- greeting
tasks:
task1:
with-items: name_info in <% $.names_info %>
action: std.echo output="<% $.greeting %>, <% $.name_info.name %>!"
publish:
result: <% $.task1 %>
"""
WB_MULTI_ARRAY = """
---
version: "2.0"
name: wb1
workflows:
with_items:
type: direct
input:
- arrayI
- arrayJ
tasks:
task1:
with-items:
- itemX in <% $.arrayI %>
- itemY in <% $.arrayJ %>
action: std.echo output="<% $.itemX %> <% $.itemY %>"
publish:
result: <% $.task1 %>
"""
WB_ACTION_CONTEXT = """
---
version: "2.0"
name: wb1
workflows:
wf1_with_items:
type: direct
input:
- links
tasks:
task1:
with-items: link in <% $.links %>
action: std.http url=<% $.link %>
publish:
result: <% $.task1 %>
"""
WF_INPUT = {
'names_info': [
{'name': 'John'},
{'name': 'Ivan'},
{'name': 'Mistral'}
]
}
WF_INPUT_URLS = {
'links': [
'http://google.com',
'http://openstack.org',
'http://google.com'
]
}
WF_INPUT_ONE_ITEM = {
'names_info': [
{'name': 'Guy'}
]
}
class RandomSleepEchoAction(action_base.Action):
def __init__(self, output):
self.output = output
def run(self):
utils.random_sleep(1)
return self.output
def test(self):
utils.random_sleep(1)
class WithItemsEngineTest(base.EngineTestCase):
def assert_capacity(self, capacity, task_ex):
self.assertEqual(
capacity,
task_ex.runtime_context['with_items_context']['capacity']
)
@staticmethod
def get_incomplete_action_ex(task_ex):
return [ex for ex in task_ex.executions if not ex.accepted][0]
@staticmethod
def get_running_action_exs_number(task_ex):
return len([ex for ex in task_ex.executions
if ex.state == states.RUNNING])
def test_with_items_simple(self):
wb_service.create_workbook_v2(WB)
# Start workflow.
wf_ex = self.engine.start_workflow('wb1.with_items', WF_INPUT)
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_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_context']
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.
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"
with_items:
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('with_items', {})
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_workflow_execution(wf_ex.id)
self.assertEqual(2, len(wf_ex.task_executions))
def test_with_items_sub_workflow_fail(self):
wb_text = """---
version: "2.0"
name: wb1
workflows:
with_items:
type: direct
tasks:
task1:
with-items: i in [1, 2, 3]
workflow: subworkflow
on-error: task2
task2:
action: std.echo output="With-items failed"
subworkflow:
type: direct
tasks:
fail:
action: std.fail
"""
wb_service.create_workbook_v2(wb_text)
# Start workflow.
wf_ex = self.engine.start_workflow('wb1.with_items', {})
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_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('wb1.with_items', wf_input)
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_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('wb1.with_items', wf_input)
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_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):
wb_service.create_workbook_v2(WB_ACTION_CONTEXT)
# Start workflow.
wf_ex = self.engine.start_workflow('wb1.wf1_with_items', WF_INPUT_URLS)
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, wf_utils.Result("Ivan"))
self.engine.on_action_complete(act_exs[1].id, wf_utils.Result("John"))
self.engine.on_action_complete(
act_exs[2].id,
wf_utils.Result("Mistral")
)
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_workflow_execution(wf_ex.id)
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)
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_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(lambda: self.is_execution_success(wf_ex.id))
# 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'", exception.message)
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: <% $.task1 %>
"""
# 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(lambda: self.is_execution_success(wf_ex.id))
# 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
)
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('wb1.with_items', WF_INPUT_ONE_ITEM)
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_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"
concurrency_test:
type: direct
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('concurrency_test', {})
wf_ex = db_api.get_execution(wf_ex.id)
task_ex = wf_ex.task_executions[0]
task_ex = db_api.get_task_execution(task_ex.id)
self.assert_capacity(0, task_ex)
self.assertEqual(1, self.get_running_action_exs_number(task_ex))
# 1st iteration complete.
self.engine.on_action_complete(
self.get_incomplete_action_ex(task_ex).id,
wf_utils.Result("John")
)
task_ex = db_api.get_task_execution(task_ex.id)
self.assert_capacity(0, task_ex)
self.assertEqual(1, self.get_running_action_exs_number(task_ex))
# 2nd iteration complete.
self.engine.on_action_complete(
self.get_incomplete_action_ex(task_ex).id,
wf_utils.Result("Ivan")
)
task_ex = db_api.get_task_execution(task_ex.id)
self.assert_capacity(0, task_ex)
self.assertEqual(1, self.get_running_action_exs_number(task_ex))
# 3rd iteration complete.
self.engine.on_action_complete(
self.get_incomplete_action_ex(task_ex).id,
wf_utils.Result("Mistral")
)
task_ex = db_api.get_task_execution(task_ex.id)
self.assert_capacity(1, task_ex)
self._await(lambda: self.is_execution_success(wf_ex.id))
task_ex = db_api.get_task_execution(task_ex.id)
# 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)
self.assertEqual(states.SUCCESS, task_ex.state)
def test_with_items_concurrency_yaql(self):
wf_with_concurrency_yaql = """---
version: "2.0"
concurrency_test:
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(
'concurrency_test',
{'concurrency': 2}
)
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(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_yaql_wrong_type(self):
wf_with_concurrency_yaql = """---
version: "2.0"
concurrency_test:
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(
'concurrency_test',
{'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"
concurrency_test:
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('concurrency_test', {})
wf_ex = db_api.get_execution(wf_ex.id)
task_ex = wf_ex.task_executions[0]
self.assert_capacity(0, task_ex)
self.assertEqual(2, self.get_running_action_exs_number(task_ex))
# 1st iteration complete.
self.engine.on_action_complete(
self.get_incomplete_action_ex(task_ex).id,
wf_utils.Result("John")
)
task_ex = db_api.get_task_execution(task_ex.id)
self.assert_capacity(0, task_ex)
self.assertEqual(2, self.get_running_action_exs_number(task_ex))
# 2nd iteration complete.
self.engine.on_action_complete(
self.get_incomplete_action_ex(task_ex).id,
wf_utils.Result("Ivan")
)
task_ex = db_api.get_task_execution(task_ex.id)
self.assert_capacity(0, task_ex)
self.assertEqual(2, self.get_running_action_exs_number(task_ex))
# 3rd iteration complete.
self.engine.on_action_complete(
self.get_incomplete_action_ex(task_ex).id,
wf_utils.Result("Mistral")
)
task_ex = db_api.get_task_execution(task_ex.id)
self.assert_capacity(1, task_ex)
# 4th iteration complete.
self.engine.on_action_complete(
self.get_incomplete_action_ex(task_ex).id,
wf_utils.Result("Hello")
)
task_ex = db_api.get_task_execution(task_ex.id)
self.assert_capacity(2, task_ex)
self._await(lambda: self.is_execution_success(wf_ex.id))
task_ex = db_api.get_task_execution(task_ex.id)
# 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)
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(lambda: self.is_execution_success(wf_ex.id))
wf_ex = db_api.get_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')
self.assertEqual(
'With-items failed',
data_flow.get_task_execution_result(task_2)
)
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', {})
wf_ex = db_api.get_execution(wf_ex.id)
task_ex = wf_ex.task_executions[0]
self.assert_capacity(0, task_ex)
self.assertEqual(3, self.get_running_action_exs_number(task_ex))
# 1st iteration complete.
self.engine.on_action_complete(
self.get_incomplete_action_ex(task_ex).id,
wf_utils.Result("John")
)
task_ex = db_api.get_task_execution(task_ex.id)
self.assert_capacity(1, task_ex)
# 2nd iteration complete.
self.engine.on_action_complete(
self.get_incomplete_action_ex(task_ex).id,
wf_utils.Result("Ivan")
)
task_ex = db_api.get_task_execution(task_ex.id)
self.assert_capacity(2, task_ex)
# 3rd iteration complete.
self.engine.on_action_complete(
self.get_incomplete_action_ex(task_ex).id,
wf_utils.Result("Mistral")
)
task_ex = db_api.get_task_execution(task_ex.id)
self.assert_capacity(3, task_ex)
self._await(lambda: self.is_execution_success(wf_ex.id))
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):
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(lambda: self.is_execution_success(wf_ex.id))
wf_ex = db_api.get_execution(wf_ex.id)
task_ex = self._assert_single_item(
wf_ex.task_executions,
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, 3]
action: std.fail
retry:
count: 3
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(lambda: self.is_execution_success(wf_ex.id))
# 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')
self.assertEqual(
2,
task1_ex.runtime_context['retry_task_policy']['retry_no']
)
self.assertEqual(9, len(task1_ex.executions))
self._assert_multiple_items(task1_ex.executions, 3, accepted=True)
def test_with_items_retry_policy_concurrency(self):
wf_text = """---
version: "2.0"
with_items_retry_concurrency:
tasks:
task1:
with-items: i in [1, 2, 3, 4]
action: std.fail
retry:
count: 3
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('with_items_retry_concurrency', {})
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_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')
self.assertEqual(12, len(task1_ex.executions))
self._assert_multiple_items(task1_ex.executions, 4, accepted=True)
def test_with_items_env(self):
wf_text = """---
version: "2.0"
with_items_env:
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(
'with_items_env',
{},
env={'name': 'Mistral'}
)
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_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(
[
"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(lambda: self.is_execution_success(wf_ex.id))
# 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
)
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', {'names': names})
self._await(lambda: self.is_execution_success(wf_ex.id))
wf_ex = db_api.get_execution(wf_ex.id)
task_ex = self._assert_single_item(
wf_ex.task_executions,
name='task1',
state=states.SUCCESS
)
result = [
item['result']
for item in data_flow.get_task_execution_result(task_ex)
]
self.assertListEqual(sorted(result), sorted(names))