Files
deb-python-taskflow/taskflow/tests/unit/test_utils_async_utils.py
Joshua Harlow 7655ae02ce Use futures wait() when possible
Instead of always using our custom future wait
functionality, only use that functionality if there
are green futures and in other cases just use the
future wait() function instead.

Change-Id: I1eadcf53eb4b5f47b9543965610bfe04fec52e70
2014-05-14 20:24:03 -07:00

94 lines
3.0 KiB
Python

# -*- coding: utf-8 -*-
# Copyright (C) 2013 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 testtools
from concurrent import futures
from taskflow import test
from taskflow.utils import async_utils as au
from taskflow.utils import eventlet_utils as eu
class WaitForAnyTestsMixin(object):
timeout = 0.001
def test_waits_and_finishes(self):
def foo():
pass
with self.executor_cls(2) as e:
fs = [e.submit(foo), e.submit(foo)]
# this test assumes that our foo will end within 10 seconds
done, not_done = au.wait_for_any(fs, 10)
self.assertIn(len(done), (1, 2))
self.assertTrue(any(f in done for f in fs))
def test_not_done_futures(self):
fs = [futures.Future(), futures.Future()]
done, not_done = au.wait_for_any(fs, self.timeout)
self.assertEqual(len(done), 0)
self.assertEqual(len(not_done), 2)
def test_mixed_futures(self):
f1 = futures.Future()
f2 = futures.Future()
f2.set_result(1)
done, not_done = au.wait_for_any([f1, f2], self.timeout)
self.assertEqual(len(done), 1)
self.assertEqual(len(not_done), 1)
self.assertIs(not_done.pop(), f1)
self.assertIs(done.pop(), f2)
@testtools.skipIf(not eu.EVENTLET_AVAILABLE, 'eventlet is not available')
class AsyncUtilsEventletTest(test.TestCase,
WaitForAnyTestsMixin):
executor_cls = eu.GreenExecutor
is_green = True
def test_add_result(self):
waiter = eu._GreenWaiter()
self.assertFalse(waiter.event.is_set())
waiter.add_result(futures.Future())
self.assertTrue(waiter.event.is_set())
def test_add_exception(self):
waiter = eu._GreenWaiter()
self.assertFalse(waiter.event.is_set())
waiter.add_exception(futures.Future())
self.assertTrue(waiter.event.is_set())
def test_add_cancelled(self):
waiter = eu._GreenWaiter()
self.assertFalse(waiter.event.is_set())
waiter.add_cancelled(futures.Future())
self.assertTrue(waiter.event.is_set())
class AsyncUtilsThreadedTest(test.TestCase,
WaitForAnyTestsMixin):
executor_cls = futures.ThreadPoolExecutor
class MakeCompletedFutureTest(test.TestCase):
def test_make_completed_future(self):
result = object()
future = au.make_completed_future(result)
self.assertTrue(future.done())
self.assertIs(future.result(), result)