[ONOS-5932] New FlowObjective compiler for LinkCollection Intent

Change-Id: I50ca991bf0997a24dd18cf68c060c2c0912f294c
diff --git a/core/api/src/test/java/org/onosproject/net/NetTestTools.java b/core/api/src/test/java/org/onosproject/net/NetTestTools.java
index dd03a09..86ee0f7 100644
--- a/core/api/src/test/java/org/onosproject/net/NetTestTools.java
+++ b/core/api/src/test/java/org/onosproject/net/NetTestTools.java
@@ -234,6 +234,12 @@
                 .build();
     }
 
+    public static TrafficSelector ethDstSelector(String macAddress) {
+        return DefaultTrafficSelector.builder()
+                .matchEthDst(MacAddress.valueOf(macAddress))
+                .build();
+    }
+
     /**
      * Builds an empty treatment.
      *