spiff-arena/tests/SpiffWorkflow/bpmn/TooManyLoopsTest.py
burnettk c237e218b2 Squashed 'SpiffWorkflow/' changes from 98c6294f..0e61be85
0e61be85 Merge pull request #289 from sartography/improvement/execution-and-serialization-cleanup
527684da fix some typos in the class & method docs
0dff44a4 Merge branch 'main' into improvement/execution-and-serialization-cleanup
64737498 Allow for other PythonScriptEngine environments besides task data (#288)
dd63e916 remove some unused tests & diagrams
24aae519 clean up various small stuff
3b2dc35d use context when opening files for parsing
69eec3eb update class/method docs
24528dfb move all spec conversion classes to top level
5af33b11 remove some unused methods related to old serializer
931b90fb reorganize serializer
4e81ed29 consolidate pointless serializer classes
d62acf02 change task_spec._update_hook to return a boolean indicating whether the task is ready

git-subtree-dir: SpiffWorkflow
git-subtree-split: 0e61be85c47474a33037e6f398e64c96e02f13ad
2023-02-02 20:59:28 -05:00

87 lines
3.7 KiB
Python

# -*- coding: utf-8 -*-
import datetime
import unittest
from SpiffWorkflow.bpmn.PythonScriptEngine import PythonScriptEngine
from SpiffWorkflow.bpmn.PythonScriptEngineEnvironment import TaskDataEnvironment
from SpiffWorkflow.bpmn.workflow import BpmnWorkflow
from tests.SpiffWorkflow.bpmn.BpmnWorkflowTestCase import BpmnWorkflowTestCase
__author__ = 'sartography'
class CustomScriptEngine(PythonScriptEngine):
"""This is a custom script processor that can be easily injected into Spiff Workflow.
It will execute python code read in from the bpmn. It will also make any scripts in the
scripts directory available for execution. """
def __init__(self):
environment = TaskDataEnvironment({
'timedelta': datetime.timedelta,
})
super().__init__(environment=environment)
class TooManyLoopsTest(BpmnWorkflowTestCase):
"""Looping back around many times would cause the tree of tasks to grow
for each loop, doing this a 100 or 1000 times would cause the system to
run fail in various ways. This assures that is no longer the case."""
def testRunThroughHappy(self):
self.actual_test(save_restore=False)
def testThroughSaveRestore(self):
self.actual_test(save_restore=True)
def actual_test(self,save_restore = False):
spec, subprocesses = self.load_workflow_spec('too_many_loops*.bpmn', 'loops')
self.workflow = BpmnWorkflow(spec, subprocesses, script_engine=CustomScriptEngine())
counter = 0
data = {}
while not self.workflow.is_completed():
self.workflow.do_engine_steps()
self.workflow.refresh_waiting_tasks()
if (self.workflow.last_task.data != data):
data = self.workflow.last_task.data
counter += 1 # There is a 10 millisecond wait task.
if save_restore:
self.save_restore()
self.workflow.script_engine = CustomScriptEngine()
self.assertEqual(20, self.workflow.last_task.data['counter'])
def test_with_sub_process(self):
# Found an issue where looping back would fail when it happens
# right after a sub-process. So assuring this is fixed.
counter = 0
spec, subprocesses = self.load_workflow_spec('too_many_loops_sub_process.bpmn', 'loops_sub')
self.workflow = BpmnWorkflow(spec, subprocesses, script_engine=CustomScriptEngine())
data = {}
while not self.workflow.is_completed():
self.workflow.do_engine_steps()
self.workflow.refresh_waiting_tasks()
if (self.workflow.last_task.data != data):
data = self.workflow.last_task.data
counter += 1 # There is a 10 millisecond wait task.
# self.save_restore()
self.assertEqual(20, self.workflow.last_task.data['counter'])
# One less, because we don't go back through once the first counter
# hits 20.
self.assertEqual(19, self.workflow.last_task.data['counter2'])
def test_with_two_call_activities(self):
spec, subprocess = self.load_workflow_spec('sub_in_loop*.bpmn', 'main')
self.workflow = BpmnWorkflow(spec, subprocess, script_engine=CustomScriptEngine())
self.workflow.do_engine_steps()
for loop in range(3):
ready = self.workflow.get_ready_user_tasks()
ready[0].data = { 'done': True if loop == 3 else False }
ready[0].complete()
self.workflow.refresh_waiting_tasks()
self.workflow.do_engine_steps()
self.save_restore()
self.workflow.script_engine = CustomScriptEngine()
def suite():
return unittest.TestLoader().loadTestsFromTestCase(TooManyLoopsTest)
if __name__ == '__main__':
unittest.TextTestRunner(verbosity=2).run(suite())