Source code for ceilometer.tests.unit.compute.test_discovery

# 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
# 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.
import datetime

import iso8601
import mock
from oslo_config import fixture as fixture_config
from oslotest import mockpatch

from ceilometer.compute import discovery
import ceilometer.tests.base as base

[docs]class TestDiscovery(base.BaseTestCase):
[docs] def setUp(self): super(TestDiscovery, self).setUp() self.instance = mock.MagicMock() = 'instance-00000001' setattr(self.instance, 'OS-EXT-SRV-ATTR:instance_name', setattr(self.instance, 'OS-EXT-STS:vm_state', 'active') = 1 self.instance.flavor = {'name': 'm1.small', 'id': 2, 'vcpus': 1, 'ram': 512, 'disk': 20, 'ephemeral': 0} self.instance.status = 'active' self.instance.metadata = { 'fqdn': 'vm_fqdn', 'metering.stack': '2cadc4b4-8789-123c-b4eg-edd2f0a9c128', 'project_cos': 'dev'} # as we're having lazy hypervisor inspector singleton object in the # base compute pollster class, that leads to the fact that we # need to mock all this class property to avoid context sharing between # the tests self.client = mock.MagicMock() self.client.instance_get_all_by_host.return_value = [self.instance] patch_client = mockpatch.Patch('ceilometer.nova_client.Client', return_value=self.client) self.useFixture(patch_client) self.utc_now = mock.MagicMock( return_value=datetime.datetime(2016, 1, 1, tzinfo=iso8601.iso8601.UTC)) patch_timeutils = mockpatch.Patch('oslo_utils.timeutils.utcnow', self.utc_now) self.useFixture(patch_timeutils) self.CONF = self.useFixture(fixture_config.Config()).conf self.CONF.set_override('host', 'test')
[docs] def test_normal_discovery(self): dsc = discovery.InstanceDiscovery() resources = self.assertEqual(1, len(resources)) self.assertEqual(1, list(resources)[0].id) self.client.instance_get_all_by_host.assert_called_once_with( 'test', None) resources = self.assertEqual(1, len(resources)) self.assertEqual(1, list(resources)[0].id) self.client.instance_get_all_by_host.assert_called_with(, "2016-01-01T00:00:00+00:00")
[docs] def test_discovery_with_resource_update_interval(self): self.CONF.set_override("resource_update_interval", 600, group="compute") dsc = discovery.InstanceDiscovery() dsc.last_run = datetime.datetime(2016, 1, 1, tzinfo=iso8601.iso8601.UTC) self.utc_now.return_value = datetime.datetime( 2016, 1, 1, minute=5, tzinfo=iso8601.iso8601.UTC) resources = self.assertEqual(0, len(resources)) self.client.instance_get_all_by_host.assert_not_called() self.utc_now.return_value = datetime.datetime( 2016, 1, 1, minute=20, tzinfo=iso8601.iso8601.UTC) resources = self.assertEqual(1, len(resources)) self.assertEqual(1, list(resources)[0].id) self.client.instance_get_all_by_host.assert_called_once_with(, "2016-01-01T00:00:00+00:00")

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