Files
deb-python-taskflow/taskflow/tests/unit/test_graph_flow.py
Anastasia Karpinska e7508eb8e5 Unit tests refactoring
* duplicated tests were removed
* common tasks moved to utils

Change-Id: I69c91a264ec668b1333db8fd907298262af098cb
2013-10-17 15:35:18 +03:00

117 lines
4.7 KiB
Python

# -*- coding: utf-8 -*-
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright (C) 2012 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.
import collections
import taskflow.engines
from taskflow.patterns import graph_flow as gw
from taskflow.utils import flow_utils as fu
from taskflow.utils import graph_utils as gu
from taskflow import test
from taskflow.tests import utils
class GraphFlowTest(test.TestCase):
def _make_engine(self, flow):
return taskflow.engines.load(flow, store={})
def _capture_states(self):
# TODO(harlowja): move function to shared helper
capture_where = collections.defaultdict(list)
def do_capture(state, details):
task_uuid = details.get('task_uuid')
if not task_uuid:
return
capture_where[task_uuid].append(state)
return (do_capture, capture_where)
def test_ordering(self):
wf = gw.Flow("the-test-action")
test_1 = utils.ProvidesRequiresTask('test-1',
requires=[],
provides=set(['a', 'b']))
test_2 = utils.ProvidesRequiresTask('test-2',
provides=['c'],
requires=['a', 'b'])
test_3 = utils.ProvidesRequiresTask('test-3',
provides=[],
requires=['c'])
wf.add(test_1, test_2, test_3)
self.assertTrue(wf.graph.has_edge(test_1, test_2))
self.assertTrue(wf.graph.has_edge(test_2, test_3))
self.assertEquals(3, len(wf.graph))
self.assertEquals([test_1], list(gu.get_no_predecessors(wf.graph)))
self.assertEquals([test_3], list(gu.get_no_successors(wf.graph)))
def test_basic_edge_reasons(self):
wf = gw.Flow("the-test-action")
test_1 = utils.ProvidesRequiresTask('test-1',
requires=[],
provides=set(['a', 'b']))
test_2 = utils.ProvidesRequiresTask('test-2',
provides=['c'],
requires=['a', 'b'])
wf.add(test_1, test_2)
self.assertTrue(wf.graph.has_edge(test_1, test_2))
edge_attrs = gu.get_edge_attrs(wf.graph, test_1, test_2)
self.assertTrue(len(edge_attrs) > 0)
self.assertIn('reasons', edge_attrs)
self.assertEquals(set(['a', 'b']), edge_attrs['reasons'])
# 2 -> 1 should not be linked, and therefore have no attrs
no_edge_attrs = gu.get_edge_attrs(wf.graph, test_2, test_1)
self.assertFalse(no_edge_attrs)
def test_linked_edge_reasons(self):
wf = gw.Flow("the-test-action")
test_1 = utils.ProvidesRequiresTask('test-1',
requires=[],
provides=[])
test_2 = utils.ProvidesRequiresTask('test-2',
provides=[],
requires=[])
wf.add(test_1, test_2)
self.assertFalse(wf.graph.has_edge(test_1, test_2))
wf.link(test_1, test_2)
self.assertTrue(wf.graph.has_edge(test_1, test_2))
edge_attrs = gu.get_edge_attrs(wf.graph, test_1, test_2)
self.assertTrue(len(edge_attrs) > 0)
self.assertTrue(edge_attrs.get('manual'))
def test_flatten_attribute(self):
wf = gw.Flow("the-test-action")
test_1 = utils.ProvidesRequiresTask('test-1',
requires=[],
provides=[])
test_2 = utils.ProvidesRequiresTask('test-2',
provides=[],
requires=[])
wf.add(test_1, test_2)
wf.link(test_1, test_2)
g = fu.flatten(wf)
self.assertEquals(2, len(g))
edge_attrs = gu.get_edge_attrs(g, test_1, test_2)
self.assertTrue(edge_attrs.get('manual'))
self.assertTrue(edge_attrs.get('flatten'))