53e69f27f4
The current tests are very opaque when something fails. This change makes the failure easier to understand without a debugger. The testtools version is bumped to get a new HasLength matcher. Change-Id: Iceafa70f88a8cc31a1b0ba912fe32a9fef1b2f18
126 lines
3.8 KiB
Python
126 lines
3.8 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2012 OpenStack LLC
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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 time
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import fixtures
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from testtools import matchers
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from nova import manager
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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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class Manager(manager.Manager):
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@manager.periodic_task(spacing=10)
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def bar(self):
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return 'bar'
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m = Manager()
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m.periodic_tasks(None)
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time.sleep(0.1)
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idle = m.periodic_tasks(None)
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self.assertThat(idle, matchers.GreaterThan(9.7))
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self.assertThat(idle, matchers.LessThan(9.9))
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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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