55 lines
1.9 KiB
Python
55 lines
1.9 KiB
Python
# Copyright (c) 2014 VMware, Inc.
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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 mock
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from ceilometer.agent import manager
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from ceilometer.compute.pollsters import memory
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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 TestMemoryPollster(base.TestPollsterBase):
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def setUp(self):
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super(TestMemoryPollster, 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.MemoryUsageStats(usage=1.0),
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virt_inspector.MemoryUsageStats(usage=2.0),
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))
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def inspect_memory_usage(instance, duration):
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return next(next_value)
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(self.inspector.
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inspect_memory_usage) = mock.Mock(side_effect=inspect_memory_usage)
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mgr = manager.AgentManager()
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pollster = memory.MemoryUsagePollster()
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def _verify_memory_metering(expected_memory_mb):
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cache = {}
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samples = list(pollster.get_samples(mgr, cache, [self.instance]))
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self.assertEqual(1, len(samples))
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self.assertEqual(set(['memory.usage']),
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set([s.name for s in samples]))
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self.assertEqual(expected_memory_mb, samples[0].volume)
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_verify_memory_metering(1.0)
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_verify_memory_metering(2.0)
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