Add unit test for MulticastRoute REST API

Change-Id: I33fb93256e701cbff8af3e4247917c90fea8da59
diff --git a/web/api/src/test/resources/org/onosproject/rest/mcastroute.json b/web/api/src/test/resources/org/onosproject/rest/mcastroute.json
new file mode 100644
index 0000000..a8fd70e
--- /dev/null
+++ b/web/api/src/test/resources/org/onosproject/rest/mcastroute.json
@@ -0,0 +1,5 @@
+{
+  "source": "1.1.1.1",
+  "group": "224.0.0.1",
+  "type": "IGMP"
+}
\ No newline at end of file