add runtest role

Change-Id: Icb8fdc544159aa7a205a812fbf639f047192c61d
diff --git a/tests/test_yaml_templates.py b/tests/test_yaml_templates.py
index 07dd570..92fd870 100644
--- a/tests/test_yaml_templates.py
+++ b/tests/test_yaml_templates.py
@@ -39,7 +39,11 @@
                         }
                     }
                 }
-            }
+            },
+            'default_context': {
+                'manila_enabled': 'False',
+                'barbican_enabled': 'False',
+            },
         }
         yield node, "test_env-interface-" + interface_role
 
@@ -56,7 +60,11 @@
                     ],
                     'interfaces': {}
                 }
-            }
+            },
+            'default_context': {
+                'manila_enabled': 'False',
+                'barbican_enabled': 'False',
+            },
         }
         yield node, "test_env-role-" + node_role