84 lines
2.7 KiB
Python
84 lines
2.7 KiB
Python
# Copyright 2012 Red Hat, Inc.
|
|
#
|
|
# 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
|
|
|
|
from eventlet import greenthread
|
|
from mox3 import mox
|
|
from oslotest import base as test_base
|
|
|
|
from oslo_service import loopingcall
|
|
|
|
|
|
class LoopingCallTestCase(test_base.BaseTestCase):
|
|
|
|
def setUp(self):
|
|
super(LoopingCallTestCase, self).setUp()
|
|
self.num_runs = 0
|
|
|
|
def test_return_true(self):
|
|
def _raise_it():
|
|
raise loopingcall.LoopingCallDone(True)
|
|
|
|
timer = loopingcall.FixedIntervalLoopingCall(_raise_it)
|
|
self.assertTrue(timer.start(interval=0.5).wait())
|
|
|
|
def test_return_false(self):
|
|
def _raise_it():
|
|
raise loopingcall.LoopingCallDone(False)
|
|
|
|
timer = loopingcall.FixedIntervalLoopingCall(_raise_it)
|
|
self.assertFalse(timer.start(interval=0.5).wait())
|
|
|
|
def _wait_for_zero(self):
|
|
"""Called at an interval until num_runs == 0."""
|
|
if self.num_runs == 0:
|
|
raise loopingcall.LoopingCallDone(False)
|
|
else:
|
|
self.num_runs = self.num_runs - 1
|
|
|
|
def test_repeat(self):
|
|
self.num_runs = 2
|
|
|
|
timer = loopingcall.FixedIntervalLoopingCall(self._wait_for_zero)
|
|
self.assertFalse(timer.start(interval=0.5).wait())
|
|
|
|
def test_interval_adjustment(self):
|
|
"""Ensure the interval is adjusted to account for task duration."""
|
|
self.num_runs = 3
|
|
|
|
now = time.time()
|
|
second = 1
|
|
smidgen = 0.01
|
|
|
|
m = mox.Mox()
|
|
m.StubOutWithMock(greenthread, 'sleep')
|
|
greenthread.sleep(mox.IsAlmost(0.02))
|
|
greenthread.sleep(mox.IsAlmost(0.0))
|
|
greenthread.sleep(mox.IsAlmost(0.0))
|
|
m.StubOutWithMock(loopingcall, '_ts')
|
|
loopingcall._ts().AndReturn(now)
|
|
loopingcall._ts().AndReturn(now + second - smidgen)
|
|
loopingcall._ts().AndReturn(now)
|
|
loopingcall._ts().AndReturn(now + second + second)
|
|
loopingcall._ts().AndReturn(now)
|
|
loopingcall._ts().AndReturn(now + second + smidgen)
|
|
loopingcall._ts().AndReturn(now)
|
|
m.ReplayAll()
|
|
|
|
timer = loopingcall.FixedIntervalLoopingCall(self._wait_for_zero)
|
|
timer.start(interval=1.01).wait()
|
|
m.UnsetStubs()
|
|
m.VerifyAll()
|