6f77240c02
first stage of moving to full pep8 compliance Change-Id: I4626a0949da5b9c49776d1e16cb9ebb49b4e6723
82 lines
2.9 KiB
Python
82 lines
2.9 KiB
Python
# -*- encoding: utf-8 -*-
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#
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# Copyright © 2012 eNovance <licensing@enovance.com>
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# Copyright © 2012 Red Hat, Inc
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#
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# Author: Julien Danjou <julien@danjou.info>
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# Author: Eoghan Glynn <eglynn@redhat.com>
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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 mock
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import six
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from ceilometer.compute import manager
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from ceilometer.compute.pollsters import cpu
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from ceilometer.compute.virt import inspector as virt_inspector
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from ceilometer.tests.compute.pollsters import base
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class TestCPUPollster(base.TestPollsterBase):
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def setUp(self):
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super(TestCPUPollster, self).setUp()
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@mock.patch('ceilometer.pipeline.setup_pipeline', mock.MagicMock())
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def test_get_samples(self):
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next_value = iter((
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virt_inspector.CPUStats(time=1 * (10 ** 6), number=2),
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virt_inspector.CPUStats(time=3 * (10 ** 6), number=2),
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# cpu_time resets on instance restart
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virt_inspector.CPUStats(time=2 * (10 ** 6), number=2),
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))
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def inspect_cpus(name):
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return six.next(next_value)
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self.inspector.inspect_cpus = mock.Mock(side_effect=inspect_cpus)
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mgr = manager.AgentManager()
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pollster = cpu.CPUPollster()
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def _verify_cpu_metering(expected_time):
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cache = {}
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samples = list(pollster.get_samples(mgr, cache, self.instance))
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self.assertEqual(len(samples), 1)
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self.assertEqual(set([s.name for s in samples]),
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set(['cpu']))
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self.assertEqual(samples[0].volume, expected_time)
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self.assertEqual(samples[0].resource_metadata.get('cpu_number'), 2)
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# ensure elapsed time between polling cycles is non-zero
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time.sleep(0.001)
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_verify_cpu_metering(1 * (10 ** 6))
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_verify_cpu_metering(3 * (10 ** 6))
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_verify_cpu_metering(2 * (10 ** 6))
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@mock.patch('ceilometer.pipeline.setup_pipeline', mock.MagicMock())
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def test_get_samples_no_caching(self):
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cpu_stats = virt_inspector.CPUStats(time=1 * (10 ** 6), number=2)
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self.inspector.inspect_cpus = mock.Mock(return_value=cpu_stats)
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mgr = manager.AgentManager()
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pollster = cpu.CPUPollster()
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cache = {}
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samples = list(pollster.get_samples(mgr, cache, self.instance))
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self.assertEqual(len(samples), 1)
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self.assertEqual(samples[0].volume, 10 ** 6)
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self.assertEqual(len(cache), 0)
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