updating cord vtn tests

Change-Id: Iefbc96527d1636552de1d4f91c080ccce3efd490
diff --git a/src/test/cord-api/Tests/data/CoreInstance.json b/src/test/cord-api/Tests/data/CoreInstance.json
index 5212868..6ebf9a3 100644
--- a/src/test/cord-api/Tests/data/CoreInstance.json
+++ b/src/test/cord-api/Tests/data/CoreInstance.json
@@ -11,7 +11,7 @@
                         "image_id": 3,
                         "creator_id": 1,
                         "deployment_id": 1,
-                        "slice_id": 1,
+                        "slice_id": 5,
                         "node_id": 1,
                         "flavor_id": 1
                 }