nova/nova/tests/unit/compute/monitors/test_cpu_monitor.py

87 lines
3.4 KiB
Python

# Copyright 2013 Intel Corporation
# All Rights Reserved.
#
# 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.
"""Tests for Compute Driver CPU resource monitor."""
import fixtures
from nova.compute import manager
from nova.compute.monitors import virt
from nova import test
class FakeLibvirt(object):
def getCPUStats(self, cpuNum, flag):
if cpuNum < 2:
return {'kernel': 5664160000000L,
'idle': 1592705190000000L,
'user': 26728850000000L,
'iowait': 6121490000000L}
else:
raise Exception("invalid argument: Invalid cpu number")
def getInfo(self):
return [0, 0, 0, 800, 0, 0, 0, 0]
class ComputeDriverCPUMonitorTestCase(test.NoDBTestCase):
def setUp(self):
super(ComputeDriverCPUMonitorTestCase, self).setUp()
self.flags(compute_driver='nova.virt.libvirt.LibvirtDriver')
self.useFixture(fixtures.MonkeyPatch(
'nova.virt.libvirt.driver.LibvirtDriver._conn',
FakeLibvirt()))
cm = manager.ComputeManager()
self.monitor = virt.ComputeDriverCPUMonitor(cm)
def test_get_metric_names(self):
names = self.monitor.get_metric_names()
self.assertEqual(10, len(names))
self.assertIn("cpu.frequency", names)
self.assertIn("cpu.user.time", names)
self.assertIn("cpu.kernel.time", names)
self.assertIn("cpu.idle.time", names)
self.assertIn("cpu.iowait.time", names)
self.assertIn("cpu.user.percent", names)
self.assertIn("cpu.kernel.percent", names)
self.assertIn("cpu.idle.percent", names)
self.assertIn("cpu.iowait.percent", names)
self.assertIn("cpu.percent", names)
def test_get_metrics(self):
metrics_raw = self.monitor.get_metrics()
names = self.monitor.get_metric_names()
metrics = {}
for metric in metrics_raw:
self.assertIn(metric['name'], names)
metrics[metric['name']] = metric['value']
self.assertEqual(metrics["cpu.frequency"], 800)
self.assertEqual(metrics["cpu.user.time"], 26728850000000L)
self.assertEqual(metrics["cpu.kernel.time"], 5664160000000L)
self.assertEqual(metrics["cpu.idle.time"], 1592705190000000L)
self.assertEqual(metrics["cpu.iowait.time"], 6121490000000L)
self.assertTrue(metrics["cpu.user.percent"] <= 1
and metrics["cpu.user.percent"] >= 0)
self.assertTrue(metrics["cpu.kernel.percent"] <= 1
and metrics["cpu.kernel.percent"] >= 0)
self.assertTrue(metrics["cpu.idle.percent"] <= 1
and metrics["cpu.idle.percent"] >= 0)
self.assertTrue(metrics["cpu.iowait.percent"] <= 1
and metrics["cpu.iowait.percent"] >= 0)
self.assertTrue(metrics["cpu.percent"] <= 1
and metrics["cpu.percent"] >= 0)