[ONOS-2225] Add unit test for Flow Objectives REST API

This commits add unit tests for Flow Objective REST API.
The corresponding REST API implementation can be referred to
e9ac2c50b963465b3210f4336bbe75c8436aeb59.

Change-Id: I018fdafe103b3eb14e06c162c47093a11d660b26
diff --git a/web/api/src/test/resources/org/onosproject/rest/post-forward-objective.json b/web/api/src/test/resources/org/onosproject/rest/post-forward-objective.json
new file mode 100644
index 0000000..634424d
--- /dev/null
+++ b/web/api/src/test/resources/org/onosproject/rest/post-forward-objective.json
@@ -0,0 +1,23 @@
+{
+  "priority": 1,
+  "isPermanent": false,
+  "timeout": 1,
+  "flag": "SPECIFIC",
+  "operation": "ADD",
+  "selector": {
+    "criteria": [
+      {
+        "type": "ETH_TYPE",
+        "ethType": "0x806"
+      }
+    ]
+  },
+  "treatment":
+  {
+    "instructions":
+    [
+      {"type":"OUTPUT","port":-3},
+      {"type":"DROP"}
+    ]
+  }
+}
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