change PLCoreBase to XOSBase

Change-Id: I3335ee9df600472a4d61433560e56d83c03a2c07
diff --git a/src/app/service-graph/services/graph.store.spec.ts b/src/app/service-graph/services/graph.store.spec.ts
index da389e1..c083f09 100644
--- a/src/app/service-graph/services/graph.store.spec.ts
+++ b/src/app/service-graph/services/graph.store.spec.ts
@@ -23,12 +23,12 @@
   {
     id: 1,
     name: 'Service A',
-    class_names: 'Service,PlCoreBase'
+    class_names: 'Service, XOSBase'
   },
   {
     id: 2,
     name: 'Service B',
-    class_names: 'Service,PlCoreBase'
+    class_names: 'Service, XOSBase'
   }
 ];
 
@@ -38,7 +38,7 @@
     provider_service_id: 2,
     subscriber_service_id: 1,
     kind: 'coarse',
-    class_names: 'Tenant,PlCoreBase'
+    class_names: 'Tenant, XOSBase'
   }
 ];