# Copyright 2013 Cloudbase Solutions Srl
#
# 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 Hyper-V inspector.
"""
import sys
import mock
from os_win import exceptions as os_win_exc
from oslo_utils import units
from oslotest import base
from ceilometer.compute.virt.hyperv import inspector as hyperv_inspector
from ceilometer.compute.virt import inspector as virt_inspector
[docs]class TestHyperVInspection(base.BaseTestCase):
@mock.patch.object(hyperv_inspector, 'utilsfactory', mock.MagicMock())
@mock.patch.object(hyperv_inspector.HyperVInspector,
'_compute_host_max_cpu_clock')
[docs] def setUp(self, mock_compute_host_cpu_clock):
self._inspector = hyperv_inspector.HyperVInspector()
self._inspector._utils = mock.MagicMock()
super(TestHyperVInspection, self).setUp()
[docs] def test_converted_exception(self):
self._inspector._utils.get_cpu_metrics.side_effect = (
os_win_exc.OSWinException)
self.assertRaises(virt_inspector.InspectorException,
self._inspector.inspect_cpus, mock.sentinel.instance)
self._inspector._utils.get_cpu_metrics.side_effect = (
os_win_exc.HyperVException)
self.assertRaises(virt_inspector.InspectorException,
self._inspector.inspect_cpus, mock.sentinel.instance)
self._inspector._utils.get_cpu_metrics.side_effect = (
os_win_exc.NotFound(resource='foofoo'))
self.assertRaises(virt_inspector.InstanceNotFoundException,
self._inspector.inspect_cpus, mock.sentinel.instance)
[docs] def test_assert_original_traceback_maintained(self):
def bar(self):
foo = "foofoo"
raise os_win_exc.NotFound(resource=foo)
self._inspector._utils.get_cpu_metrics.side_effect = bar
try:
self._inspector.inspect_cpus(mock.sentinel.instance)
self.fail("Test expected exception, but it was not raised.")
except virt_inspector.InstanceNotFoundException:
# exception has been raised as expected.
_, _, trace = sys.exc_info()
while trace.tb_next:
# iterate until the original exception source, bar.
trace = trace.tb_next
# original frame will contain the 'foo' variable.
self.assertEqual('foofoo', trace.tb_frame.f_locals['foo'])
@mock.patch.object(hyperv_inspector, 'utilsfactory')
[docs] def test_compute_host_max_cpu_clock(self, mock_utilsfactory):
mock_cpu = {'MaxClockSpeed': 1000}
hostutils = mock_utilsfactory.get_hostutils.return_value.get_cpus_info
hostutils.return_value = [mock_cpu, mock_cpu]
cpu_clock = self._inspector._compute_host_max_cpu_clock()
self.assertEqual(2000.0, cpu_clock)
[docs] def test_inspect_cpus(self):
fake_instance_name = 'fake_instance_name'
fake_cpu_clock_used = 2000
fake_cpu_count = 3000
fake_uptime = 4000
self._inspector._host_max_cpu_clock = 4000.0
fake_cpu_percent_used = (fake_cpu_clock_used /
self._inspector._host_max_cpu_clock)
fake_cpu_time = (int(fake_uptime * fake_cpu_percent_used) *
1000)
self._inspector._utils.get_cpu_metrics.return_value = (
fake_cpu_clock_used, fake_cpu_count, fake_uptime)
cpu_stats = self._inspector.inspect_cpus(fake_instance_name)
self.assertEqual(fake_cpu_count, cpu_stats.number)
self.assertEqual(fake_cpu_time, cpu_stats.time)
[docs] def test_inspect_memory_usage(self):
fake_usage = self._inspector._utils.get_memory_metrics.return_value
usage = self._inspector.inspect_memory_usage(
mock.sentinel.FAKE_INSTANCE, mock.sentinel.FAKE_DURATION)
self.assertEqual(fake_usage, usage.usage)
[docs] def test_inspect_vnics(self):
fake_instance_name = 'fake_instance_name'
fake_rx_mb = 1000
fake_tx_mb = 2000
fake_element_name = 'fake_element_name'
fake_address = 'fake_address'
self._inspector._utils.get_vnic_metrics.return_value = [{
'rx_mb': fake_rx_mb,
'tx_mb': fake_tx_mb,
'element_name': fake_element_name,
'address': fake_address}]
inspected_vnics = list(self._inspector.inspect_vnics(
fake_instance_name))
self.assertEqual(1, len(inspected_vnics))
self.assertEqual(2, len(inspected_vnics[0]))
inspected_vnic, inspected_stats = inspected_vnics[0]
self.assertEqual(fake_element_name, inspected_vnic.name)
self.assertEqual(fake_address, inspected_vnic.mac)
self.assertEqual(fake_rx_mb * units.Mi, inspected_stats.rx_bytes)
self.assertEqual(fake_tx_mb * units.Mi, inspected_stats.tx_bytes)
[docs] def test_inspect_disks(self):
fake_instance_name = 'fake_instance_name'
fake_read_mb = 1000
fake_write_mb = 2000
fake_instance_id = "fake_fake_instance_id"
fake_host_resource = "fake_host_resource"
self._inspector._utils.get_disk_metrics.return_value = [{
'read_mb': fake_read_mb,
'write_mb': fake_write_mb,
'instance_id': fake_instance_id,
'host_resource': fake_host_resource}]
inspected_disks = list(self._inspector.inspect_disks(
fake_instance_name))
self.assertEqual(1, len(inspected_disks))
self.assertEqual(2, len(inspected_disks[0]))
inspected_disk, inspected_stats = inspected_disks[0]
self.assertEqual(fake_instance_id, inspected_disk.device)
self.assertEqual(fake_read_mb * units.Mi, inspected_stats.read_bytes)
self.assertEqual(fake_write_mb * units.Mi, inspected_stats.write_bytes)
[docs] def test_inspect_disk_latency(self):
fake_instance_name = mock.sentinel.INSTANCE_NAME
fake_disk_latency = mock.sentinel.DISK_LATENCY
fake_instance_id = mock.sentinel.INSTANCE_ID
self._inspector._utils.get_disk_latency_metrics.return_value = [{
'disk_latency': fake_disk_latency,
'instance_id': fake_instance_id}]
inspected_disks = list(self._inspector.inspect_disk_latency(
fake_instance_name))
self.assertEqual(1, len(inspected_disks))
self.assertEqual(2, len(inspected_disks[0]))
inspected_disk, inspected_stats = inspected_disks[0]
self.assertEqual(fake_instance_id, inspected_disk.device)
self.assertEqual(fake_disk_latency, inspected_stats.disk_latency)
[docs] def test_inspect_disk_iops_count(self):
fake_instance_name = mock.sentinel.INSTANCE_NAME
fake_disk_iops_count = mock.sentinel.DISK_IOPS_COUNT
fake_instance_id = mock.sentinel.INSTANCE_ID
self._inspector._utils.get_disk_iops_count.return_value = [{
'iops_count': fake_disk_iops_count,
'instance_id': fake_instance_id}]
inspected_disks = list(self._inspector.inspect_disk_iops(
fake_instance_name))
self.assertEqual(1, len(inspected_disks))
self.assertEqual(2, len(inspected_disks[0]))
inspected_disk, inspected_stats = inspected_disks[0]
self.assertEqual(fake_instance_id, inspected_disk.device)
self.assertEqual(fake_disk_iops_count, inspected_stats.iops_count)