60a9e6a817
New method allows to iterate over flow node and get access to node metadata during iteration. Change-Id: Ib0fc77f0597961602fbc3b49ba09e4df815d8230
129 lines
4.5 KiB
Python
129 lines
4.5 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
# Copyright (C) 2014 Yahoo! Inc. All Rights Reserved.
|
|
#
|
|
# 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.
|
|
|
|
from taskflow.patterns import unordered_flow as uf
|
|
from taskflow import retry
|
|
from taskflow import test
|
|
from taskflow.tests import utils
|
|
|
|
|
|
def _task(name, provides=None, requires=None):
|
|
return utils.ProvidesRequiresTask(name, provides, requires)
|
|
|
|
|
|
class UnorderedFlowTest(test.TestCase):
|
|
|
|
def test_unordered_flow_starts_as_empty(self):
|
|
f = uf.Flow('test')
|
|
|
|
self.assertEqual(len(f), 0)
|
|
self.assertEqual(list(f), [])
|
|
self.assertEqual(list(f.iter_links()), [])
|
|
|
|
self.assertEqual(f.requires, set())
|
|
self.assertEqual(f.provides, set())
|
|
|
|
expected = 'taskflow.patterns.unordered_flow.Flow: test(len=0)'
|
|
self.assertEqual(str(f), expected)
|
|
|
|
def test_unordered_flow_add_nothing(self):
|
|
f = uf.Flow('test')
|
|
result = f.add()
|
|
self.assertIs(f, result)
|
|
self.assertEqual(len(f), 0)
|
|
|
|
def test_unordered_flow_one_task(self):
|
|
f = uf.Flow('test')
|
|
task = _task(name='task1', requires=['a', 'b'], provides=['c', 'd'])
|
|
result = f.add(task)
|
|
|
|
self.assertIs(f, result)
|
|
|
|
self.assertEqual(len(f), 1)
|
|
self.assertEqual(list(f), [task])
|
|
self.assertEqual(list(f.iter_links()), [])
|
|
self.assertEqual(f.requires, set(['a', 'b']))
|
|
self.assertEqual(f.provides, set(['c', 'd']))
|
|
|
|
def test_unordered_flow_two_tasks(self):
|
|
task1 = _task(name='task1')
|
|
task2 = _task(name='task2')
|
|
f = uf.Flow('test').add(task1, task2)
|
|
|
|
self.assertEqual(len(f), 2)
|
|
self.assertEqual(set(f), set([task1, task2]))
|
|
self.assertEqual(list(f.iter_links()), [])
|
|
|
|
def test_unordered_flow_two_tasks_two_different_calls(self):
|
|
task1 = _task(name='task1', provides=['a'])
|
|
task2 = _task(name='task2', requires=['a'])
|
|
f = uf.Flow('test').add(task1)
|
|
f.add(task2)
|
|
self.assertEqual(len(f), 2)
|
|
self.assertEqual(set(['a']), f.requires)
|
|
self.assertEqual(set(['a']), f.provides)
|
|
|
|
def test_unordered_flow_two_tasks_reverse_order(self):
|
|
task1 = _task(name='task1', provides=['a'])
|
|
task2 = _task(name='task2', requires=['a'])
|
|
f = uf.Flow('test').add(task2).add(task1)
|
|
self.assertEqual(len(f), 2)
|
|
self.assertEqual(set(['a']), f.requires)
|
|
self.assertEqual(set(['a']), f.provides)
|
|
|
|
def test_unordered_flow_two_task_same_provide(self):
|
|
task1 = _task(name='task1', provides=['a', 'b'])
|
|
task2 = _task(name='task2', provides=['a', 'c'])
|
|
f = uf.Flow('test')
|
|
f.add(task2, task1)
|
|
self.assertEqual(len(f), 2)
|
|
|
|
def test_unordered_flow_with_retry(self):
|
|
ret = retry.AlwaysRevert(requires=['a'], provides=['b'])
|
|
f = uf.Flow('test', ret)
|
|
self.assertIs(f.retry, ret)
|
|
self.assertEqual(ret.name, 'test_retry')
|
|
|
|
self.assertEqual(f.requires, set(['a']))
|
|
self.assertEqual(f.provides, set(['b']))
|
|
|
|
def test_unordered_flow_with_retry_fully_satisfies(self):
|
|
ret = retry.AlwaysRevert(provides=['b', 'a'])
|
|
f = uf.Flow('test', ret)
|
|
f.add(_task(name='task1', requires=['a']))
|
|
self.assertIs(f.retry, ret)
|
|
self.assertEqual(ret.name, 'test_retry')
|
|
self.assertEqual(f.requires, set([]))
|
|
self.assertEqual(f.provides, set(['b', 'a']))
|
|
|
|
def test_iter_nodes(self):
|
|
task1 = _task(name='task1', provides=['a', 'b'])
|
|
task2 = _task(name='task2', provides=['a', 'c'])
|
|
tasks = set([task1, task2])
|
|
f = uf.Flow('test')
|
|
f.add(task2, task1)
|
|
for (node, data) in f.iter_nodes():
|
|
self.assertTrue(node in tasks)
|
|
self.assertDictEqual({}, data)
|
|
|
|
def test_iter_links(self):
|
|
task1 = _task(name='task1', provides=['a', 'b'])
|
|
task2 = _task(name='task2', provides=['a', 'c'])
|
|
f = uf.Flow('test')
|
|
f.add(task2, task1)
|
|
for (u, v, data) in f.iter_links():
|
|
raise AssertionError('links iterator should be empty')
|