fw: abstract Nack processing out of BestRouteStrategy2

refs #3176

Change-Id: Ib220269ff52acc47c65f854a610941afd862ad41
diff --git a/tests/test-common.hpp b/tests/test-common.hpp
index 9ea3d3c..4d046d2 100644
--- a/tests/test-common.hpp
+++ b/tests/test-common.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2014-2016,  Regents of the University of California,
+ * Copyright (c) 2014-2017,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -143,6 +143,13 @@
 makeLink(const Name& name, std::initializer_list<std::pair<uint32_t, Name>> delegations);
 
 /** \brief create a Nack
+ *  \param interest Interest
+ *  \param reason Nack reason
+ */
+lp::Nack
+makeNack(Interest interest, lp::NackReason reason);
+
+/** \brief create a Nack
  *  \param name Interest name
  *  \param nonce Interest nonce
  *  \param reason Nack reason