Removed 'watcher_messaging' to use oslo.messaging

The old 'watcher_messaging' section of the Watcher configuration file
has now been replaced by the more standard oslo.configuration one.

DocImpact

Change-Id: Ie027df023e6133f3188e57b42846083f28c282bd

watcher/tests/common/messaging/test_messaging_handler.py

@@ -0,0 +1,78 @@
+# -*- encoding: utf-8 -*-
+# Copyright (c) 2015 b<>com
+#
+# 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.
+
+from mock import Mock
+from mock import patch
+from oslo_config import cfg
+import oslo_messaging as messaging
+from watcher.common.messaging.messaging_handler import MessagingHandler
+from watcher.tests.base import TestCase
+
+CONF = cfg.CONF
+
+
+class TestMessagingHandler(TestCase):
+
+    PUBLISHER_ID = 'TEST_API'
+    TOPIC_WATCHER = 'TEST_TOPIC_WATCHER'
+    ENDPOINT = 'http://fake-fqdn:1337'
+    VERSION = "1.0"
+
+    def setUp(self):
+        super(TestMessagingHandler, self).setUp()
+        CONF.set_default('host', 'fake-fqdn')
+
+    @patch.object(messaging, "get_rpc_server")
+    @patch.object(messaging, "Target")
+    def test_setup_messaging_handler(self, m_target_cls, m_get_rpc_server):
+        m_target = Mock()
+        m_target_cls.return_value = m_target
+        messaging_handler = MessagingHandler(
+            publisher_id=self.PUBLISHER_ID,
+            topic_watcher=self.TOPIC_WATCHER,
+            endpoint=self.ENDPOINT,
+            version=self.VERSION,
+            serializer=None,
+        )
+
+        messaging_handler.run()
+
+        m_target_cls.assert_called_once_with(
+            server="fake-fqdn",
+            topic="TEST_TOPIC_WATCHER",
+            version="1.0",
+        )
+        m_get_rpc_server.assert_called_once_with(
+            messaging_handler.transport,
+            m_target,
+            [self.ENDPOINT],
+            serializer=None,
+        )
+
+    def test_messaging_handler_remove_endpoint(self):
+        messaging_handler = MessagingHandler(
+            publisher_id=self.PUBLISHER_ID,
+            topic_watcher=self.TOPIC_WATCHER,
+            endpoint=self.ENDPOINT,
+            version=self.VERSION,
+            serializer=None,
+        )
+
+        self.assertEqual(messaging_handler.endpoints, [self.ENDPOINT])
+
+        messaging_handler.remove_endpoint(self.ENDPOINT)
+
+        self.assertEqual(messaging_handler.endpoints, [])