Merge "Update to using oslo periodic tasks implementation."
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Jenkins
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2012 OpenStack Foundation
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import datetime
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from testtools import matchers
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from nova import manager
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from nova.openstack.common import timeutils
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from nova import test
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class ManagerMetaTestCase(test.TestCase):
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"""Tests for the meta class which manages the creation of periodic tasks.
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"""
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def test_meta(self):
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class Manager(object):
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__metaclass__ = manager.ManagerMeta
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@manager.periodic_task
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def foo(self):
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return 'foo'
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@manager.periodic_task(spacing=4)
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def bar(self):
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return 'bar'
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@manager.periodic_task(enabled=False)
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def baz(self):
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return 'baz'
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m = Manager()
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self.assertThat(m._periodic_tasks, matchers.HasLength(2))
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self.assertEqual(None, m._periodic_spacing['foo'])
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self.assertEqual(4, m._periodic_spacing['bar'])
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self.assertThat(
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m._periodic_spacing, matchers.Not(matchers.Contains('baz')))
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class Manager(test.TestCase):
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"""Tests the periodic tasks portion of the manager class."""
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def test_periodic_tasks_with_idle(self):
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class Manager(manager.Manager):
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@manager.periodic_task(spacing=200)
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def bar(self):
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return 'bar'
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m = Manager()
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self.assertThat(m._periodic_tasks, matchers.HasLength(1))
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self.assertEqual(200, m._periodic_spacing['bar'])
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# Now a single pass of the periodic tasks
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idle = m.periodic_tasks(None)
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self.assertAlmostEqual(60, idle, 1)
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def test_periodic_tasks_constant(self):
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class Manager(manager.Manager):
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@manager.periodic_task(spacing=0)
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def bar(self):
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return 'bar'
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m = Manager()
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idle = m.periodic_tasks(None)
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self.assertAlmostEqual(60, idle, 1)
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def test_periodic_tasks_idle_calculation(self):
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fake_time = datetime.datetime(3000, 1, 1)
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timeutils.set_time_override(fake_time)
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class Manager(manager.Manager):
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@manager.periodic_task(spacing=10)
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def bar(self, context):
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return 'bar'
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m = Manager()
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# Ensure initial values are correct
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self.assertEqual(1, len(m._periodic_tasks))
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task_name, task = m._periodic_tasks[0]
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# Test task values
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self.assertEqual('bar', task_name)
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self.assertEqual(10, task._periodic_spacing)
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self.assertEqual(True, task._periodic_enabled)
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self.assertEqual(False, task._periodic_external_ok)
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self.assertEqual(False, task._periodic_immediate)
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self.assertNotEqual(None, task._periodic_last_run)
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# Test the manager's representation of those values
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self.assertEqual(10, m._periodic_spacing[task_name])
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self.assertNotEqual(None, m._periodic_last_run[task_name])
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timeutils.advance_time_delta(datetime.timedelta(seconds=5))
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m.periodic_tasks(None)
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timeutils.advance_time_delta(datetime.timedelta(seconds=5))
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idle = m.periodic_tasks(None)
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self.assertAlmostEqual(10, idle, 1)
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def test_periodic_tasks_immediate_runs_now(self):
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fake_time = datetime.datetime(3000, 1, 1)
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timeutils.set_time_override(fake_time)
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class Manager(manager.Manager):
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@manager.periodic_task(spacing=10, run_immediately=True)
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def bar(self, context):
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return 'bar'
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m = Manager()
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# Ensure initial values are correct
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self.assertEqual(1, len(m._periodic_tasks))
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task_name, task = m._periodic_tasks[0]
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# Test task values
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self.assertEqual('bar', task_name)
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self.assertEqual(10, task._periodic_spacing)
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self.assertEqual(True, task._periodic_enabled)
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self.assertEqual(False, task._periodic_external_ok)
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self.assertEqual(True, task._periodic_immediate)
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self.assertEqual(None, task._periodic_last_run)
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# Test the manager's representation of those values
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self.assertEqual(10, m._periodic_spacing[task_name])
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self.assertEqual(None, m._periodic_last_run[task_name])
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idle = m.periodic_tasks(None)
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self.assertEqual(datetime.datetime(3000, 1, 1, 0, 0),
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m._periodic_last_run[task_name])
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self.assertAlmostEqual(10, idle, 1)
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timeutils.advance_time_delta(datetime.timedelta(seconds=5))
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idle = m.periodic_tasks(None)
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self.assertAlmostEqual(5, idle, 1)
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def test_periodic_tasks_disabled(self):
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class Manager(manager.Manager):
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@manager.periodic_task(spacing=-1)
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def bar(self):
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return 'bar'
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m = Manager()
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idle = m.periodic_tasks(None)
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self.assertAlmostEqual(60, idle, 1)
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def test_external_running_here(self):
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self.flags(run_external_periodic_tasks=True)
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class Manager(manager.Manager):
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@manager.periodic_task(spacing=200, external_process_ok=True)
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def bar(self):
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return 'bar'
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m = Manager()
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self.assertThat(m._periodic_tasks, matchers.HasLength(1))
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def test_external_running_elsewhere(self):
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self.flags(run_external_periodic_tasks=False)
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class Manager(manager.Manager):
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@manager.periodic_task(spacing=200, external_process_ok=True)
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def bar(self):
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return 'bar'
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m = Manager()
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self.assertEqual([], m._periodic_tasks)
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