taskflow/taskflow/examples/optional_arguments.py

94 lines
2.9 KiB
Python

# -*- coding: utf-8 -*-
# Copyright (C) 2015 Hewlett-Packard Development Company, L.P.
#
# 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 unittest
from taskflow import engines
from taskflow.patterns import linear_flow
from taskflow import task
class TestTask(task.Task):
def execute(self, a, b=5):
result = a * b
return result
flow_no_inject = linear_flow.Flow("flow").add(TestTask(provides='result'))
flow_inject_a = linear_flow.Flow("flow").add(TestTask(provides='result',
inject={'a': 10}))
flow_inject_b = linear_flow.Flow("flow").add(TestTask(provides='result',
inject={'b': 1000}))
ASSERT = True
class MyTest(unittest.TestCase):
def test_my_test(self):
print("Expected result = 15")
result = engines.run(flow_no_inject, store={'a': 3})
print(result)
if ASSERT:
self.assertEqual(result,
{'a': 3, 'result': 15}
)
print("Expected result = 39")
result = engines.run(flow_no_inject, store={'a': 3, 'b': 7})
print(result)
if ASSERT:
self.assertEqual(
result,
{'a': 3, 'b': 7, 'result': 21}
)
print("Expected result = 200")
result = engines.run(flow_inject_a, store={'a': 3})
print(result)
if ASSERT:
self.assertEqual(
result,
{'a': 3, 'result': 50}
)
print("Expected result = 400")
result = engines.run(flow_inject_a, store={'a': 3, 'b': 7})
print(result)
if ASSERT:
self.assertEqual(
result,
{'a': 3, 'b': 7, 'result': 70}
)
print("Expected result = 40")
result = engines.run(flow_inject_b, store={'a': 3})
print(result)
if ASSERT:
self.assertEqual(
result,
{'a': 3, 'result': 3000}
)
print("Expected result = 40")
result = engines.run(flow_inject_b, store={'a': 3, 'b': 7})
print(result)
if ASSERT:
self.assertEqual(
result,
{'a': 3, 'b': 7, 'result': 3000}
)
if __name__ == '__main__':
unittest.main()