diff --git a/tests/test-leaf.cc b/tests/test-leaf.cc
index 49afcc5..bad1971 100644
--- a/tests/test-leaf.cc
+++ b/tests/test-leaf.cc
@@ -1,27 +1,24 @@
 /* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
 /*
- * Copyright (c) 2012 University of California, Los Angeles
+ * Copyright (c) 2012-2014 University of California, Los Angeles
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation;
+ * This file is part of ChronoSync, synchronization library for distributed realtime
+ * applications for NDN.
  *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
+ * ChronoSync is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation, either
+ * version 3 of the License, or (at your option) any later version.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ * ChronoSync is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
  *
- * Author: Zhenkai Zhu <zhenkai@cs.ucla.edu>
- *         Chaoyi Bian <bcy@pku.edu.cn>
- *	   Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ * You should have received a copy of the GNU General Public License along with
+ * ChronoSync, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <boost/test/unit_test.hpp>
-#include <boost/test/output_test_stream.hpp> 
+#include <boost/test/output_test_stream.hpp>
 using boost::test_tools::output_test_stream;
 
 #include <boost/make_shared.hpp>
@@ -47,7 +44,7 @@
 
   BOOST_CHECK_NO_THROW (DiffLeaf x (name, SeqNo (12)));
   BOOST_CHECK_EQUAL (name.use_count (), 1);
-  
+
   BOOST_CHECK_NO_THROW (DiffLeaf x (name));
   BOOST_CHECK_EQUAL (name.use_count (), 1);
 
@@ -60,11 +57,11 @@
   BOOST_CHECK_EQUAL (updateLeaf.getOperation (), UPDATE);
   BOOST_CHECK_EQUAL (updateLeaf.getSeq ().getSession (), 0);
   BOOST_CHECK_EQUAL (updateLeaf.getSeq ().getSeq (), 12);
-  
+
   BOOST_CHECK_EQUAL (removeLeaf.getOperation (), REMOVE);
   BOOST_CHECK_EQUAL (removeLeaf.getSeq ().getSession (), 0);
   BOOST_CHECK_EQUAL (removeLeaf.getSeq ().getSeq (), 0);
-  
+
   BOOST_REQUIRE_NO_THROW (FullLeaf x (name, SeqNo (12)));
   FullLeaf fullLeaf (name, SeqNo (12));
   BOOST_CHECK_EQUAL (name.use_count (), 4);
@@ -77,7 +74,7 @@
   FullLeaf fullLeaf (name, SeqNo (12));
 
   // fullLeafDigest = hash ( hash(name), hash (session, seqNo) )
-  
+
   // Digest manualDigest;
 
   // Digest manualNameDigest;