Fix get and update in FlavorExtraSpecs

Fixes bug 1105170
Added serializer test
Change-Id: I365a81e17319fa96d53b53eafb6326fff8bde288

2 files changed, 18 insertions, 3 deletions

diff --git a/nova/api/openstack/compute/contrib/flavorextraspecs.py b/nova/api/openstack/compute/contrib/flavorextraspecs.py
index c8deb7b4c..84f157b6a 100644
--- a/nova/api/openstack/compute/contrib/flavorextraspecs.py
+++ b/nova/api/openstack/compute/contrib/flavorextraspecs.py
@@ -34,6 +34,15 @@ class ExtraSpecsTemplate(xmlutil.TemplateBuilder):
         return xmlutil.MasterTemplate(xmlutil.make_flat_dict('extra_specs'), 1)
 
 
+class ExtraSpecTemplate(xmlutil.TemplateBuilder):
+    def construct(self):
+        sel = xmlutil.Selector(xmlutil.get_items, 0)
+        root = xmlutil.TemplateElement('extra_spec', selector=sel)
+        root.set('key', 0)
+        root.text = 1
+        return xmlutil.MasterTemplate(root, 1)
+
+
 class FlavorExtraSpecsController(object):
     """The flavor extra specs API controller for the OpenStack API."""
 
@@ -70,7 +79,7 @@ class FlavorExtraSpecsController(object):
             raise exc.HTTPBadRequest(explanation=unicode(error))
         return body
 
-    @wsgi.serializers(xml=ExtraSpecsTemplate)
+    @wsgi.serializers(xml=ExtraSpecTemplate)
     def update(self, req, flavor_id, id, body):
         context = req.environ['nova.context']
         authorize(context)
@@ -87,10 +96,9 @@ class FlavorExtraSpecsController(object):
                                                                body)
         except exception.MetadataLimitExceeded as error:
             raise exc.HTTPBadRequest(explanation=unicode(error))
-
         return body
 
-    @wsgi.serializers(xml=ExtraSpecsTemplate)
+    @wsgi.serializers(xml=ExtraSpecTemplate)
     def show(self, req, flavor_id, id):
         """Return a single extra spec item."""
         context = req.environ['nova.context']
diff --git a/nova/tests/api/openstack/compute/contrib/test_flavors_extra_specs.py b/nova/tests/api/openstack/compute/contrib/test_flavors_extra_specs.py
index bc9f66eb2..03f6a8f48 100644
--- a/nova/tests/api/openstack/compute/contrib/test_flavors_extra_specs.py
+++ b/nova/tests/api/openstack/compute/contrib/test_flavors_extra_specs.py
@@ -182,3 +182,10 @@ class FlavorsExtraSpecsXMLSerializerTest(test.TestCase):
                   '<extra_specs><key1>value1</key1></extra_specs>')
         result = deserializer.deserialize(intext)['body']
         self.assertEqual(result, expected)
+
+    def test_show_update_serializer(self):
+        serializer = flavorextraspecs.ExtraSpecTemplate()
+        expected = ("<?xml version='1.0' encoding='UTF-8'?>\n"
+                    '<extra_spec key="key1">value1</extra_spec>')
+        text = serializer.serialize(dict({"key1": "value1"}))
+        self.assertEqual(text, expected)