244 lines
10 KiB
Python
244 lines
10 KiB
Python
# Copyright 2015 Huawei Technologies Co.,LTD.
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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 magnum.common import exception
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from magnum.conductor import scale_manager
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from magnum.tests import base
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class TestScaleManager(base.TestCase):
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@mock.patch('magnum.objects.Cluster.get_by_uuid')
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def test_get_scale_manager(self, mock_cluster_get):
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mock_context = mock.MagicMock()
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mock_osc = mock.MagicMock()
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k8s_cluster = mock.MagicMock()
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k8s_cluster.cluster_template.coe = 'kubernetes'
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mesos_cluster = mock.MagicMock()
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mesos_cluster.cluster_template.coe = 'mesos'
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invalid_cluster = mock.MagicMock()
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invalid_cluster.cluster_template.coe = 'fake'
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mgr = scale_manager.get_scale_manager(
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mock_context, mock_osc, k8s_cluster)
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self.assertIsInstance(mgr, scale_manager.K8sScaleManager)
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mgr = scale_manager.get_scale_manager(
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mock_context, mock_osc, mesos_cluster)
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self.assertIsInstance(mgr, scale_manager.MesosScaleManager)
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mgr = scale_manager.get_scale_manager(
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mock_context, mock_osc, invalid_cluster)
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self.assertIsNone(mgr)
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def _test_get_removal_nodes(
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self, mock_get_hosts, mock_get_num_of_removal,
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mock_is_scale_down, mock_get_by_uuid, is_scale_down,
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num_of_removal, all_hosts, container_hosts,
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expected_removal_hosts):
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mock_is_scale_down.return_value = is_scale_down
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mock_get_num_of_removal.return_value = num_of_removal
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mock_get_hosts.return_value = container_hosts
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mock_heat_output = mock.MagicMock()
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mock_heat_output.get_output_value.return_value = all_hosts
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mock_stack = mock.MagicMock()
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mock_heat_client = mock.MagicMock()
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mock_osc = mock.MagicMock()
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mock_heat_client.stacks.get.return_value = mock_stack
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mock_osc.heat.return_value = mock_heat_client
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mock_context = mock.MagicMock()
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mock_cluster = mock.MagicMock()
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scale_mgr = scale_manager.ScaleManager(mock_context, mock_osc,
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mock_cluster)
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if expected_removal_hosts is None:
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self.assertRaises(exception.MagnumException,
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scale_mgr.get_removal_nodes, mock_heat_output)
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else:
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removal_hosts = scale_mgr.get_removal_nodes(mock_heat_output)
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self.assertEqual(expected_removal_hosts, removal_hosts)
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if num_of_removal > 0:
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mock_get_hosts.assert_called_once_with(mock_context,
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mock_cluster)
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@mock.patch('magnum.objects.Cluster.get_by_uuid')
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@mock.patch('magnum.conductor.scale_manager.ScaleManager._is_scale_down')
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@mock.patch('magnum.conductor.scale_manager.ScaleManager.'
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'_get_num_of_removal')
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@mock.patch('magnum.conductor.scale_manager.ScaleManager.'
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'_get_hosts_with_container')
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def test_get_removal_nodes_no_container_host(
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self, mock_get_hosts, mock_get_num_of_removal,
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mock_is_scale_down, mock_get_by_uuid):
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is_scale_down = True
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num_of_removal = 1
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all_hosts = ['10.0.0.3']
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container_hosts = set()
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expected_removal_hosts = ['10.0.0.3']
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self._test_get_removal_nodes(
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mock_get_hosts, mock_get_num_of_removal, mock_is_scale_down,
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mock_get_by_uuid, is_scale_down, num_of_removal, all_hosts,
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container_hosts, expected_removal_hosts)
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@mock.patch('magnum.objects.Cluster.get_by_uuid')
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@mock.patch('magnum.conductor.scale_manager.ScaleManager._is_scale_down')
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@mock.patch('magnum.conductor.scale_manager.ScaleManager.'
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'_get_num_of_removal')
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@mock.patch('magnum.conductor.scale_manager.ScaleManager.'
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'_get_hosts_with_container')
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def test_get_removal_nodes_one_container_host(
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self, mock_get_hosts, mock_get_num_of_removal,
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mock_is_scale_down, mock_get_by_uuid):
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is_scale_down = True
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num_of_removal = 1
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all_hosts = ['10.0.0.3', '10.0.0.4']
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container_hosts = set(['10.0.0.3'])
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expected_removal_hosts = ['10.0.0.4']
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self._test_get_removal_nodes(
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mock_get_hosts, mock_get_num_of_removal, mock_is_scale_down,
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mock_get_by_uuid, is_scale_down, num_of_removal, all_hosts,
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container_hosts, expected_removal_hosts)
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@mock.patch('magnum.objects.Cluster.get_by_uuid')
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@mock.patch('magnum.conductor.scale_manager.ScaleManager._is_scale_down')
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@mock.patch('magnum.conductor.scale_manager.ScaleManager.'
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'_get_num_of_removal')
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@mock.patch('magnum.conductor.scale_manager.ScaleManager.'
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'_get_hosts_with_container')
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def test_get_removal_nodes_two_container_hosts(
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self, mock_get_hosts, mock_get_num_of_removal,
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mock_is_scale_down, mock_get_by_uuid):
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is_scale_down = True
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num_of_removal = 1
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all_hosts = ['10.0.0.3', '10.0.0.4']
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container_hosts = set(['10.0.0.3', '10.0.0.4'])
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expected_removal_hosts = []
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self._test_get_removal_nodes(
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mock_get_hosts, mock_get_num_of_removal, mock_is_scale_down,
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mock_get_by_uuid, is_scale_down, num_of_removal, all_hosts,
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container_hosts, expected_removal_hosts)
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@mock.patch('magnum.objects.Cluster.get_by_uuid')
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@mock.patch('magnum.conductor.scale_manager.ScaleManager._is_scale_down')
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@mock.patch('magnum.conductor.scale_manager.ScaleManager.'
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'_get_num_of_removal')
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@mock.patch('magnum.conductor.scale_manager.ScaleManager.'
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'_get_hosts_with_container')
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def test_get_removal_nodes_three_container_hosts(
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self, mock_get_hosts, mock_get_num_of_removal,
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mock_is_scale_down, mock_get_by_uuid):
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is_scale_down = True
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num_of_removal = 1
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all_hosts = ['10.0.0.3', '10.0.0.4']
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container_hosts = set(['10.0.0.3', '10.0.0.4', '10.0.0.5'])
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expected_removal_hosts = []
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self._test_get_removal_nodes(
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mock_get_hosts, mock_get_num_of_removal, mock_is_scale_down,
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mock_get_by_uuid, is_scale_down, num_of_removal, all_hosts,
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container_hosts, expected_removal_hosts)
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@mock.patch('magnum.objects.Cluster.get_by_uuid')
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@mock.patch('magnum.conductor.scale_manager.ScaleManager._is_scale_down')
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@mock.patch('magnum.conductor.scale_manager.ScaleManager.'
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'_get_num_of_removal')
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@mock.patch('magnum.conductor.scale_manager.ScaleManager.'
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'_get_hosts_with_container')
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def test_get_removal_nodes_scale_up(
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self, mock_get_hosts, mock_get_num_of_removal,
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mock_is_scale_down, mock_get_by_uuid):
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is_scale_down = False
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num_of_removal = -1
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all_hosts = ['10.0.0.3', '10.0.0.4']
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container_hosts = set()
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expected_removal_hosts = []
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self._test_get_removal_nodes(
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mock_get_hosts, mock_get_num_of_removal, mock_is_scale_down,
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mock_get_by_uuid, is_scale_down, num_of_removal, all_hosts,
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container_hosts, expected_removal_hosts)
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@mock.patch('magnum.objects.Cluster.get_by_uuid')
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@mock.patch('magnum.conductor.scale_manager.ScaleManager._is_scale_down')
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@mock.patch('magnum.conductor.scale_manager.ScaleManager.'
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'_get_num_of_removal')
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@mock.patch('magnum.conductor.scale_manager.ScaleManager.'
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'_get_hosts_with_container')
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def test_get_removal_nodes_with_none_hosts(
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self, mock_get_hosts, mock_get_num_of_removal,
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mock_is_scale_down, mock_get_by_uuid):
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is_scale_down = True
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num_of_removal = 1
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all_hosts = None
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container_hosts = set()
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expected_removal_hosts = None
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self._test_get_removal_nodes(
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mock_get_hosts, mock_get_num_of_removal, mock_is_scale_down,
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mock_get_by_uuid, is_scale_down, num_of_removal, all_hosts,
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container_hosts, expected_removal_hosts)
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class TestK8sScaleManager(base.TestCase):
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@mock.patch('magnum.objects.Cluster.get_by_uuid')
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@mock.patch('magnum.conductor.k8s_api.create_k8s_api')
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def test_get_hosts_with_container(self, mock_create_api, mock_get):
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pods = mock.MagicMock()
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pod_1 = mock.MagicMock()
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pod_1.spec.node_name = 'node1'
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pod_2 = mock.MagicMock()
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pod_2.spec.node_name = 'node2'
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pods.items = [pod_1, pod_2]
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mock_api = mock.MagicMock()
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mock_api.list_namespaced_pod.return_value = pods
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mock_create_api.return_value = mock_api
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mgr = scale_manager.K8sScaleManager(
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mock.MagicMock(), mock.MagicMock(), mock.MagicMock())
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hosts = mgr._get_hosts_with_container(
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mock.MagicMock(), mock.MagicMock())
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self.assertEqual(hosts, {'node1', 'node2'})
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class TestMesosScaleManager(base.TestCase):
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@mock.patch('magnum.objects.Cluster.get_by_uuid')
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@mock.patch('marathon.MarathonClient')
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@mock.patch('marathon.MarathonClient.list_tasks')
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def test_get_hosts_with_container(self, mock_list_tasks,
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mock_client, mock_get):
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task_1 = mock.MagicMock()
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task_1.host = 'node1'
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task_2 = mock.MagicMock()
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task_2.host = 'node2'
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tasks = [task_1, task_2]
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mock_list_tasks.return_value = tasks
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mgr = scale_manager.MesosScaleManager(
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mock.MagicMock(), mock.MagicMock(), mock.MagicMock())
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hosts = mgr._get_hosts_with_container(
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mock.MagicMock(), mock.MagicMock())
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self.assertEqual(hosts, {'node1', 'node2'})
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