Add basic get backend test

- Removed unused start/stop functions

Change-Id: I38ebf73859498acb0c86a4e1f48e92ce371389b8

4 files changed, 60 insertions, 30 deletions

diff --git a/designate/backend/__init__.py b/designate/backend/__init__.py
index a95a7641..668bb56f 100644
--- a/designate/backend/__init__.py
+++ b/designate/backend/__init__.py
@@ -27,12 +27,13 @@ GOOD_STATUSES = [
 def get_backend(target):
     cls = base.Backend.get_driver(target.type)
 
-    msg = "Backend Driver '%s' loaded. Has status of '%s'" \
-          % (target.type, cls.__backend_status__)
+    message = "Backend Driver '%s' loaded. Has status of '%s'" % (
+        target.type, cls.__backend_status__
+    )
 
     if cls.__backend_status__ in GOOD_STATUSES:
-        LOG.info(msg)
+        LOG.info(message)
     else:
-        LOG.warning(msg)
+        LOG.warning(message)
 
     return cls(target)
diff --git a/designate/backend/base.py b/designate/backend/base.py
index 2014b3d4..1904474c 100644
--- a/designate/backend/base.py
+++ b/designate/backend/base.py
@@ -51,12 +51,6 @@ class Backend(DriverPlugin):
         self.max_retries = CONF['service:worker'].poll_max_retries
         self.delay = CONF['service:worker'].poll_delay
 
-    def start(self):
-        LOG.info('Starting %s backend', self.get_canonical_name())
-
-    def stop(self):
-        LOG.info('Stopped %s backend', self.get_canonical_name())
-
     # Core Backend Interface
     @abc.abstractmethod
     def create_zone(self, context, zone):
diff --git a/designate/tests/test_backend/__init__.py b/designate/tests/test_backend/__init__.py
deleted file mode 100644
index 92493e0a..00000000
--- a/designate/tests/test_backend/__init__.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# Copyright 2015 Hewlett-Packard Development Company, L.P.
-#
-# Author: Kiall Mac Innes <kiall@hpe.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 designate.tests import TestCase
-
-
-class BackendTestCase(TestCase):
-    pass
diff --git a/designate/tests/unit/backend/test_base.py b/designate/tests/unit/backend/test_base.py
new file mode 100644
index 00000000..3293334a
--- /dev/null
+++ b/designate/tests/unit/backend/test_base.py
@@ -0,0 +1,55 @@
+# 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 unittest import mock
+
+import oslotest.base
+import stevedore.exception
+
+from designate import backend
+from designate.backend import impl_pdns4
+from designate import context
+from designate import objects
+
+
+class BaseBackendTestCase(oslotest.base.BaseTestCase):
+    def setUp(self):
+        super(BaseBackendTestCase, self).setUp()
+
+        self.context = mock.Mock()
+        self.admin_context = mock.Mock()
+        mock.patch.object(
+            context.DesignateContext, 'get_admin_context',
+            return_value=self.admin_context).start()
+
+        self.target = {
+            'type': 'pdns4',
+            'masters': [
+            ],
+            'options': [
+            ],
+        }
+
+    def test_get_backend(self):
+        pool_target = objects.PoolTarget.from_dict(self.target)
+        self.assertIsInstance(
+            backend.get_backend(pool_target),
+            impl_pdns4.PDNS4Backend
+        )
+
+    def test_get_backend_does_not_exist(self):
+        self.target['type'] = 'unknown'
+        pool_target = objects.PoolTarget.from_dict(self.target)
+        self.assertRaises(
+            stevedore.exception.NoMatches,
+            backend.get_backend, pool_target
+        )