diff --git a/mogan/tests/unit/db/utils.py b/mogan/tests/unit/db/utils.py
index f505134d..69cb0e9c 100644
--- a/mogan/tests/unit/db/utils.py
+++ b/mogan/tests/unit/db/utils.py
@@ -270,3 +270,15 @@ def create_test_server_tag(context, **kw):
     tag = get_test_server_tag(**kw)
     dbapi = db_api.get_instance()
     return dbapi.add_server_tag(context, tag['server_id'], tag['tag'])
+
+
+def get_test_server_nic(**kw):
+    return {
+        "port_id": kw.get("port_id", "123"),
+        "server_uuid": kw.get("server_uuid"),
+        'mac_address': kw.get('mac_address'),
+        'network_id': kw.get('network_id'),
+        'fixed_ips': kw.get('fixed_ips', []),
+        'floating_ip': kw.get('floating_ip'),
+        'preserve_on_delete': kw.get('preserve_on_delete', False),
+    }
diff --git a/mogan/tests/unit/objects/test_server_nic.py b/mogan/tests/unit/objects/test_server_nic.py
new file mode 100644
index 00000000..17f4ae4a
--- /dev/null
+++ b/mogan/tests/unit/objects/test_server_nic.py
@@ -0,0 +1,74 @@
+#
+#    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 oslo_context import context
+
+from mogan import objects
+from mogan.tests.unit.db import base
+from mogan.tests.unit.db import utils
+
+
+class TestServerNicObject(base.DbTestCase):
+
+    def setUp(self):
+        super(TestServerNicObject, self).setUp()
+        self.ctxt = context.get_admin_context()
+        self.fake_db_server_nic = utils.get_test_server_nic(
+            user_id=None, project_id=None)
+
+    def test_get_by_port_id(self):
+        port_id = self.fake_db_server_nic['port_id']
+        with mock.patch.object(self.dbapi, 'server_nic_get',
+                               autospec=True) as mock_server_nic_get:
+            mock_server_nic_get.return_value = self.fake_db_server_nic
+            server_nic = objects.ServerNic.get_by_port_id(self.context,
+                                                          port_id)
+            mock_server_nic_get.assert_called_once_with(self.context, port_id)
+            self.assertEqual(port_id, server_nic['port_id'])
+
+    def test_create(self):
+        port_id = self.fake_db_server_nic['port_id']
+        with mock.patch.object(self.dbapi, 'server_nic_update_or_create',
+                               autospec=True) as mock_server_nic_create:
+            mock_server_nic_create.return_value = self.fake_db_server_nic
+            server_nic = objects.ServerNic(self.context,
+                                           **self.fake_db_server_nic)
+            values = server_nic.obj_get_changes()
+            server_nic.create(self.context)
+            mock_server_nic_create.assert_called_once_with(
+                self.context, port_id, values)
+            self.assertEqual(port_id, server_nic['port_id'])
+
+    def test_delete(self):
+        port_id = self.fake_db_server_nic['port_id']
+        with mock.patch.object(self.dbapi, 'server_nic_delete',
+                               autospec=True) as mock_server_nic_delete:
+            server_nic = objects.ServerNic(self.context,
+                                           **self.fake_db_server_nic)
+            server_nic.delete(self.context)
+            mock_server_nic_delete.assert_called_once_with(
+                self.context, port_id)
+
+    def test_save(self):
+        port_id = self.fake_db_server_nic['port_id']
+        with mock.patch.object(self.dbapi, 'server_nic_update_or_create',
+                               autospec=True) as mock_server_nic_update:
+            server_nic = objects.ServerNic(self.context,
+                                           **self.fake_db_server_nic)
+            server_nic.server_uuid = '123'
+            updates = server_nic.obj_get_changes()
+            server_nic.save(self.context)
+            mock_server_nic_update.return_value = self.fake_db_server_nic
+            mock_server_nic_update.assert_called_once_with(
+                self.context, port_id, updates)