magnum/magnum/tests/unit/conductor/test_scale_manager.py
Jaycen Grant 729c2d0ab4 Rename Bay DB, Object, and internal usage to Cluster
This is patch 3 of 3 to change the internal usage of the terms
Bay and BayModel.  This patch updates Bay to Cluster in DB and
Object as well as all the usages.  No functionality should be
changed by this patch, just naming and db updates.

Change-Id: Ife04b0f944ded03ca932d70e09e6766d09cf5d9f
Implements: blueprint rename-bay-to-cluster
2016-09-08 13:01:12 -07:00

179 lines
7.4 KiB
Python

# Copyright 2015 Huawei Technologies Co.,LTD.
#
# 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.
import mock
from magnum.common import exception
from magnum.conductor import scale_manager
from magnum.tests import base
class TestScaleManager(base.TestCase):
def _test_get_removal_nodes(
self, mock_create_k8s_api, mock_get_num_of_removal,
mock_is_scale_down, mock_get_by_uuid, is_scale_down,
num_of_removal, all_hosts, pod_hosts, expected_removal_hosts):
mock_is_scale_down.return_value = is_scale_down
mock_get_num_of_removal.return_value = num_of_removal
pods = list()
for h in pod_hosts:
pod = mock.MagicMock()
pod.spec.node_name = h
pods.append(pod)
mock_k8s_api = mock.MagicMock()
mock_k8s_api.list_namespaced_pod.return_value.items = pods
mock_create_k8s_api.return_value = mock_k8s_api
mock_heat_output = mock.MagicMock()
mock_heat_output.get_output_value.return_value = all_hosts
mock_stack = mock.MagicMock()
mock_heat_client = mock.MagicMock()
mock_osc = mock.MagicMock()
mock_heat_client.stacks.get.return_value = mock_stack
mock_osc.heat.return_value = mock_heat_client
mock_context = mock.MagicMock()
mock_cluster = mock.MagicMock()
scale_mgr = scale_manager.ScaleManager(mock_context, mock_osc,
mock_cluster)
if expected_removal_hosts is None:
self.assertRaises(exception.MagnumException,
scale_mgr.get_removal_nodes, mock_heat_output)
else:
removal_hosts = scale_mgr.get_removal_nodes(mock_heat_output)
self.assertEqual(expected_removal_hosts, removal_hosts)
if num_of_removal > 0:
mock_create_k8s_api.assert_called_once_with(mock_context,
mock_cluster)
@mock.patch('magnum.objects.Cluster.get_by_uuid')
@mock.patch('magnum.conductor.scale_manager.ScaleManager._is_scale_down')
@mock.patch('magnum.conductor.scale_manager.ScaleManager.'
'_get_num_of_removal')
@mock.patch('magnum.conductor.k8s_api.create_k8s_api')
def test_get_removal_nodes_no_pod(
self, mock_create_k8s_api, mock_get_num_of_removal,
mock_is_scale_down, mock_get_by_uuid):
is_scale_down = True
num_of_removal = 1
hosts = ['10.0.0.3', '10.0.0.4']
pods = []
expected_removal_hosts = ['10.0.0.3']
self._test_get_removal_nodes(
mock_create_k8s_api, mock_get_num_of_removal, mock_is_scale_down,
mock_get_by_uuid, is_scale_down, num_of_removal, hosts, pods,
expected_removal_hosts)
@mock.patch('magnum.objects.Cluster.get_by_uuid')
@mock.patch('magnum.conductor.scale_manager.ScaleManager._is_scale_down')
@mock.patch('magnum.conductor.scale_manager.ScaleManager.'
'_get_num_of_removal')
@mock.patch('magnum.conductor.k8s_api.create_k8s_api')
def test_get_removal_nodes_one_pod(
self, mock_create_k8s_api, mock_get_num_of_removal,
mock_is_scale_down, mock_get_by_uuid):
is_scale_down = True
num_of_removal = 1
hosts = ['10.0.0.3', '10.0.0.4']
pods = ['10.0.0.3']
expected_removal_hosts = ['10.0.0.4']
self._test_get_removal_nodes(
mock_create_k8s_api, mock_get_num_of_removal, mock_is_scale_down,
mock_get_by_uuid, is_scale_down, num_of_removal, hosts, pods,
expected_removal_hosts)
@mock.patch('magnum.objects.Cluster.get_by_uuid')
@mock.patch('magnum.conductor.scale_manager.ScaleManager._is_scale_down')
@mock.patch('magnum.conductor.scale_manager.ScaleManager.'
'_get_num_of_removal')
@mock.patch('magnum.conductor.k8s_api.create_k8s_api')
def test_get_removal_nodes_two_pods(
self, mock_create_k8s_api, mock_get_num_of_removal,
mock_is_scale_down, mock_get_by_uuid):
is_scale_down = True
num_of_removal = 1
hosts = ['10.0.0.3', '10.0.0.4']
pods = ['10.0.0.3', '10.0.0.4']
expected_removal_hosts = []
self._test_get_removal_nodes(
mock_create_k8s_api, mock_get_num_of_removal, mock_is_scale_down,
mock_get_by_uuid, is_scale_down, num_of_removal, hosts, pods,
expected_removal_hosts)
@mock.patch('magnum.objects.Cluster.get_by_uuid')
@mock.patch('magnum.conductor.scale_manager.ScaleManager._is_scale_down')
@mock.patch('magnum.conductor.scale_manager.ScaleManager.'
'_get_num_of_removal')
@mock.patch('magnum.conductor.k8s_api.create_k8s_api')
def test_get_removal_nodes_three_pods(
self, mock_create_k8s_api, mock_get_num_of_removal,
mock_is_scale_down, mock_get_by_uuid):
is_scale_down = True
num_of_removal = 1
hosts = ['10.0.0.3', '10.0.0.4']
pods = ['10.0.0.3', '10.0.0.4', '10.0.0.5']
expected_removal_hosts = []
self._test_get_removal_nodes(
mock_create_k8s_api, mock_get_num_of_removal, mock_is_scale_down,
mock_get_by_uuid, is_scale_down, num_of_removal, hosts, pods,
expected_removal_hosts)
@mock.patch('magnum.objects.Cluster.get_by_uuid')
@mock.patch('magnum.conductor.scale_manager.ScaleManager._is_scale_down')
@mock.patch('magnum.conductor.scale_manager.ScaleManager.'
'_get_num_of_removal')
@mock.patch('magnum.conductor.k8s_api.create_k8s_api')
def test_get_removal_nodes_scale_up(
self, mock_create_k8s_api, mock_get_num_of_removal,
mock_is_scale_down, mock_get_by_uuid):
is_scale_down = False
num_of_removal = -1
hosts = ['10.0.0.3', '10.0.0.4']
pods = []
expected_removal_hosts = []
self._test_get_removal_nodes(
mock_create_k8s_api, mock_get_num_of_removal, mock_is_scale_down,
mock_get_by_uuid, is_scale_down, num_of_removal, hosts, pods,
expected_removal_hosts)
@mock.patch('magnum.objects.Cluster.get_by_uuid')
@mock.patch('magnum.conductor.scale_manager.ScaleManager._is_scale_down')
@mock.patch('magnum.conductor.scale_manager.ScaleManager.'
'_get_num_of_removal')
@mock.patch('magnum.conductor.k8s_api.create_k8s_api')
def test_get_removal_nodes_with_none_hosts(
self, mock_create_k8s_api, mock_get_num_of_removal,
mock_is_scale_down, mock_get_by_uuid):
is_scale_down = True
num_of_removal = 1
hosts = None
pods = []
expected_removal_hosts = None
self._test_get_removal_nodes(
mock_create_k8s_api, mock_get_num_of_removal, mock_is_scale_down,
mock_get_by_uuid, is_scale_down, num_of_removal, hosts, pods,
expected_removal_hosts)