src: change initialization order

Send Hello Interest after route to neighbor is successfully registered
--> First Hello interval is eliminated
--> After Hello Nack, wait exponentially before processing it as a timeout
Register sync route for each neighbor after its Hello Data is validated

refs: #5009

Change-Id: Ice39a591f1e58e474b494d93c913fa45e10f24f2
diff --git a/tests/publisher/test-dataset-interest-handler.cpp b/tests/publisher/test-dataset-interest-handler.cpp
index ee96ba8..070c06d 100644
--- a/tests/publisher/test-dataset-interest-handler.cpp
+++ b/tests/publisher/test-dataset-interest-handler.cpp
@@ -45,9 +45,7 @@
   parser.parse();
 
   ndn::Block::element_const_iterator it = parser.elements_begin();
-  BOOST_CHECK_EQUAL(isSameType(*it), true);
-  ++it;
-
+  BOOST_CHECK_EQUAL(isSameType(*it++), true);
   BOOST_CHECK(it == parser.elements_end());
 
   face.sentData.clear();