/usr/lib/python2.7/dist-packages/futurist/tests/test_executors.py is in python-futurist 0.13.0-3.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 | # -*- coding: utf-8 -*-
# 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 time
import testscenarios
from testtools import testcase
import futurist
from futurist import rejection
from futurist.tests import base
# Module level functions need to be used since the process pool
# executor can not access instance or lambda level functions (since those
# are not pickleable).
def returns_one():
return 1
def blows_up():
raise RuntimeError("no worky")
def delayed(wait_secs):
time.sleep(wait_secs)
class TestExecutors(testscenarios.TestWithScenarios, base.TestCase):
scenarios = [
('sync', {'executor_cls': futurist.SynchronousExecutor,
'restartable': True, 'executor_kwargs': {}}),
('green_sync', {'executor_cls': futurist.SynchronousExecutor,
'restartable': True,
'executor_kwargs': {'green': True}}),
('green', {'executor_cls': futurist.GreenThreadPoolExecutor,
'restartable': False, 'executor_kwargs': {}}),
('thread', {'executor_cls': futurist.ThreadPoolExecutor,
'restartable': False, 'executor_kwargs': {}}),
('process', {'executor_cls': futurist.ProcessPoolExecutor,
'restartable': False, 'executor_kwargs': {}}),
]
def setUp(self):
super(TestExecutors, self).setUp()
self.executor = self.executor_cls(**self.executor_kwargs)
def tearDown(self):
super(TestExecutors, self).tearDown()
self.executor.shutdown()
self.executor = None
def test_run_one(self):
fut = self.executor.submit(returns_one)
self.assertEqual(1, fut.result())
self.assertTrue(fut.done())
def test_blows_up(self):
fut = self.executor.submit(blows_up)
self.assertRaises(RuntimeError, fut.result)
self.assertIsInstance(fut.exception(), RuntimeError)
def test_gather_stats(self):
self.executor.submit(blows_up)
self.executor.submit(delayed, 0.2)
self.executor.submit(returns_one)
self.executor.shutdown()
self.assertEqual(3, self.executor.statistics.executed)
self.assertEqual(1, self.executor.statistics.failures)
self.assertGreaterEqual(self.executor.statistics.runtime,
# It appears that the the thread run loop
# may call this before 0.2 seconds (or 0.2
# will not be represented as a float correctly)
# is really up so accommodate for that
# happening...
0.199)
def test_post_shutdown_raises(self):
executor = self.executor_cls(**self.executor_kwargs)
executor.shutdown()
self.assertRaises(RuntimeError, executor.submit, returns_one)
def test_restartable(self):
if not self.restartable:
raise testcase.TestSkipped("not restartable")
else:
executor = self.executor_cls(**self.executor_kwargs)
fut = executor.submit(returns_one)
self.assertEqual(1, fut.result())
executor.shutdown()
self.assertEqual(1, executor.statistics.executed)
self.assertRaises(RuntimeError, executor.submit, returns_one)
executor.restart()
self.assertEqual(0, executor.statistics.executed)
fut = executor.submit(returns_one)
self.assertEqual(1, fut.result())
self.assertEqual(1, executor.statistics.executed)
executor.shutdown()
def test_alive(self):
with self.executor_cls(**self.executor_kwargs) as executor:
self.assertTrue(executor.alive)
self.assertFalse(executor.alive)
def test_done_callback(self):
happy_completed = []
unhappy_completed = []
def on_done(fut):
if fut.exception():
unhappy_completed.append(fut)
else:
happy_completed.append(fut)
for i in range(0, 10):
if i % 2 == 0:
fut = self.executor.submit(returns_one)
else:
fut = self.executor.submit(blows_up)
fut.add_done_callback(on_done)
self.executor.shutdown()
self.assertEqual(10, len(happy_completed) + len(unhappy_completed))
self.assertEqual(5, len(unhappy_completed))
self.assertEqual(5, len(happy_completed))
_REJECTION = rejection.reject_when_reached(1)
class TestRejection(testscenarios.TestWithScenarios, base.TestCase):
scenarios = [
('green', {'executor_cls': futurist.GreenThreadPoolExecutor,
'executor_kwargs': {'check_and_reject': _REJECTION,
'max_workers': 1}}),
('thread', {'executor_cls': futurist.ThreadPoolExecutor,
'executor_kwargs': {'check_and_reject': _REJECTION,
'max_workers': 1}}),
]
def setUp(self):
super(TestRejection, self).setUp()
self.executor = self.executor_cls(**self.executor_kwargs)
def test_rejection(self):
self.addCleanup(self.executor.shutdown)
# 1 worker + 1 item of backlog
for _i in range(2):
self.executor.submit(delayed, 0.5)
self.assertRaises(futurist.RejectedSubmission,
self.executor.submit, returns_one)
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