tests: Small fixes to eliminate false test failures due to recent changes in the library

Change-Id: I4656809d39d77248bfe9652f173861f80d4cd615
diff --git a/tests/test-common.hpp b/tests/test-common.hpp
index 15124cd..6b67f2f 100644
--- a/tests/test-common.hpp
+++ b/tests/test-common.hpp
@@ -1,11 +1,12 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2014  Regents of the University of California,
- *                     Arizona Board of Regents,
- *                     Colorado State University,
- *                     University Pierre & Marie Curie, Sorbonne University,
- *                     Washington University in St. Louis,
- *                     Beijing Institute of Technology
+ * Copyright (c) 2014,  Regents of the University of California,
+ *                      Arizona Board of Regents,
+ *                      Colorado State University,
+ *                      University Pierre & Marie Curie, Sorbonne University,
+ *                      Washington University in St. Louis,
+ *                      Beijing Institute of Technology,
+ *                      The University of Memphis
  *
  * This file is part of NFD (Named Data Networking Forwarding Daemon).
  * See AUTHORS.md for complete list of NFD authors and contributors.
@@ -20,7 +21,7 @@
  *
  * You should have received a copy of the GNU General Public License along with
  * NFD, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
- **/
+ */
 
 #ifndef NFD_TESTS_TEST_COMMON_HPP
 #define NFD_TESTS_TEST_COMMON_HPP
@@ -74,6 +75,7 @@
   fakeSignature.setValue(ndn::dataBlock(tlv::SignatureValue,
                                         reinterpret_cast<const uint8_t*>(0), 0));
   data->setSignature(fakeSignature);
+  data->wireEncode();
 
   return data;
 }