106 lines
4.3 KiB
Python
106 lines
4.3 KiB
Python
# Copyright 2015 Intel Corp.
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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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from unittest import mock
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import ddt
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from cinder.objects import base
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from cinder import rpc
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from cinder import test
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class FakeAPI(rpc.RPCAPI):
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RPC_API_VERSION = '1.5'
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TOPIC = 'cinder-scheduler-topic'
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BINARY = 'cinder-scheduler'
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@ddt.ddt
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class RPCAPITestCase(test.TestCase):
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"""Tests RPCAPI mixin aggregating stuff related to RPC compatibility."""
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def setUp(self):
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super(RPCAPITestCase, self).setUp()
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# Reset cached version pins
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rpc.LAST_RPC_VERSIONS = {}
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rpc.LAST_OBJ_VERSIONS = {}
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@mock.patch('cinder.objects.Service.get_minimum_rpc_version',
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return_value='1.2')
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@mock.patch('cinder.objects.Service.get_minimum_obj_version',
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return_value='1.4')
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@mock.patch('cinder.rpc.get_client')
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def test_init(self, get_client, get_min_obj, get_min_rpc):
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def fake_get_client(target, version_cap, serializer):
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self.assertEqual(FakeAPI.TOPIC, target.topic)
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self.assertEqual(FakeAPI.RPC_API_VERSION, target.version)
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self.assertEqual('1.2', version_cap)
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self.assertEqual('1.4', serializer.version_cap)
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get_client.side_effect = fake_get_client
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FakeAPI()
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@mock.patch('cinder.objects.Service.get_minimum_rpc_version',
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return_value=None)
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@mock.patch('cinder.objects.Service.get_minimum_obj_version',
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return_value=None)
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@mock.patch('cinder.objects.base.CinderObjectSerializer')
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@mock.patch('cinder.rpc.get_client')
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def test_init_none_caps(self, get_client, serializer, get_min_obj,
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get_min_rpc):
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"""Test that with no service latest versions are selected."""
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FakeAPI()
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serializer.assert_called_once_with(base.OBJ_VERSIONS.get_current())
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get_client.assert_called_once_with(mock.ANY,
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version_cap=FakeAPI.RPC_API_VERSION,
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serializer=serializer.return_value)
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self.assertTrue(get_min_obj.called)
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self.assertTrue(get_min_rpc.called)
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@mock.patch('cinder.objects.Service.get_minimum_rpc_version')
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@mock.patch('cinder.objects.Service.get_minimum_obj_version')
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@mock.patch('cinder.rpc.get_client')
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@mock.patch('cinder.rpc.LAST_RPC_VERSIONS', {'cinder-scheduler': '1.4'})
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@mock.patch('cinder.rpc.LAST_OBJ_VERSIONS', {'cinder-scheduler': '1.3'})
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def test_init_cached_caps(self, get_client, get_min_obj, get_min_rpc):
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def fake_get_client(target, version_cap, serializer):
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self.assertEqual(FakeAPI.TOPIC, target.topic)
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self.assertEqual(FakeAPI.RPC_API_VERSION, target.version)
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self.assertEqual('1.4', version_cap)
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self.assertEqual('1.3', serializer.version_cap)
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get_client.side_effect = fake_get_client
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FakeAPI()
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self.assertFalse(get_min_obj.called)
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self.assertFalse(get_min_rpc.called)
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@ddt.data([], ['noop'], ['noop', 'noop'])
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@mock.patch('oslo_messaging.JsonPayloadSerializer', wraps=True)
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def test_init_no_notifications(self, driver, serializer_mock):
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"""Test short-circuiting notifications with default and noop driver."""
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self.override_config('driver', driver,
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group='oslo_messaging_notifications')
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rpc.init(test.CONF)
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self.assertEqual(rpc.utils.DO_NOTHING, rpc.NOTIFIER)
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serializer_mock.assert_not_called()
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@mock.patch.object(rpc, 'messaging')
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def test_init_notifications(self, messaging_mock):
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rpc.init(test.CONF)
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self.assertTrue(messaging_mock.JsonPayloadSerializer.called)
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self.assertTrue(messaging_mock.Notifier.called)
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self.assertEqual(rpc.NOTIFIER, messaging_mock.Notifier.return_value)
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