Files
deb-python-taskflow/taskflow/tests/unit/test_utils.py
Joshua Harlow 23dfff4105 Engine, task, linear_flow unification
In order to move away from the existing flows having their
own implementation of running, start moving the existing
flows to be  patterns that only structure tasks (and impose
constraints about how the group of tasks can run) in useful
ways.

Let the concept of running those patterns be handled by an
engine instead of being handled by the flow itself. This
will allow for varying engines to be able to run flows in
whichever way the engine chooses (as long as the constraints
set up by the flow are observed).

Currently threaded flow and graph flow are broken by this
commit, since they have not been converted to being a
structure of tasks + constraints. The existing engine has
not yet been modified to run those structures either, work
is underway  to remediate this.

Part of: blueprint patterns-and-engines

Followup bugs that must be addressed:
  Bug: 1221448
  Bug: 1221505

Change-Id: I3a8b96179f336d1defe269728ebae0caa3d832d7
2013-09-05 19:26:36 -07:00

145 lines
4.4 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.
from taskflow import decorators
from taskflow import test
from taskflow.utils import reflection
def mere_function(a, b):
pass
def function_with_defs(a, b, optional=None):
pass
def function_with_kwargs(a, b, **kwargs):
pass
class Class(object):
def method(self, c, d):
pass
@staticmethod
def static_method(e, f):
pass
@classmethod
def class_method(cls, g, h):
pass
class CallableClass(object):
def __call__(self, i, j):
pass
class ClassWithInit(object):
def __init__(self, k, l):
pass
class GetCallableNameTest(test.TestCase):
def test_mere_function(self):
name = reflection.get_callable_name(mere_function)
self.assertEquals(name, '.'.join((__name__, 'mere_function')))
def test_method(self):
name = reflection.get_callable_name(Class.method)
self.assertEquals(name, '.'.join((__name__, 'Class', 'method')))
def test_instance_method(self):
name = reflection.get_callable_name(Class().method)
self.assertEquals(name, '.'.join((__name__, 'Class', 'method')))
def test_static_method(self):
# NOTE(imelnikov): static method are just functions, class name
# is not recorded anywhere in them
name = reflection.get_callable_name(Class.static_method)
self.assertEquals(name, '.'.join((__name__, 'static_method')))
def test_class_method(self):
name = reflection.get_callable_name(Class.class_method)
self.assertEquals(name, '.'.join((__name__, 'Class', 'class_method')))
def test_constructor(self):
name = reflection.get_callable_name(Class)
self.assertEquals(name, '.'.join((__name__, 'Class')))
def test_callable_class(self):
name = reflection.get_callable_name(CallableClass())
self.assertEquals(name, '.'.join((__name__, 'CallableClass')))
def test_callable_class_call(self):
name = reflection.get_callable_name(CallableClass().__call__)
self.assertEquals(name, '.'.join((__name__, 'CallableClass',
'__call__')))
class GetRequiredCallableArgsTest(test.TestCase):
def test_mere_function(self):
result = reflection.get_required_callable_args(mere_function)
self.assertEquals(['a', 'b'], result)
def test_function_with_defaults(self):
result = reflection.get_required_callable_args(function_with_defs)
self.assertEquals(['a', 'b'], result)
def test_method(self):
result = reflection.get_required_callable_args(Class.method)
self.assertEquals(['self', 'c', 'd'], result)
def test_instance_method(self):
result = reflection.get_required_callable_args(Class().method)
self.assertEquals(['c', 'd'], result)
def test_class_method(self):
result = reflection.get_required_callable_args(Class.class_method)
self.assertEquals(['g', 'h'], result)
def test_class_constructor(self):
result = reflection.get_required_callable_args(ClassWithInit)
self.assertEquals(['k', 'l'], result)
def test_class_with_call(self):
result = reflection.get_required_callable_args(CallableClass())
self.assertEquals(['i', 'j'], result)
def test_decorators_work(self):
@decorators.locked
def locked_fun(x, y):
pass
result = reflection.get_required_callable_args(locked_fun)
self.assertEquals(['x', 'y'], result)
class AcceptsKwargsTest(test.TestCase):
def test_no_kwargs(self):
self.assertEquals(
reflection.accepts_kwargs(mere_function), False)
def test_with_kwargs(self):
self.assertEquals(
reflection.accepts_kwargs(function_with_kwargs), True)