[ONOS-7475] Refactoring SR tests

Change-Id: I10e51fcb8b416167e6a338e9030933162640af89
diff --git a/TestON/tests/USECASE/SegmentRouting/SRRouting/dependencies/json/extra.json b/TestON/tests/USECASE/SegmentRouting/SRRouting/dependencies/json/extra.json
new file mode 100644
index 0000000..e3544bf
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRRouting/dependencies/json/extra.json
@@ -0,0 +1,16 @@
+{
+    "hosts" : {
+        "00:00:00:00:00:09/-1" : {
+            "basic": {
+                "ips": ["10.0.1.9"],
+                "locations": ["of:0000000000000001/3"]
+            }
+        },
+        "00:00:00:00:09:01/-1" : {
+            "basic": {
+                "ips": ["10.0.9.1"],
+                "locations": ["of:0000000000000001/4"]
+            }
+        }
+    }
+}