lsa: make base class abstract

refs: #4353

Change-Id: If95c1689727f541c123623d21aec78ab8bdd58e6
diff --git a/tests/mocks/lsa.cpp b/tests/mocks/lsa.cpp
new file mode 100644
index 0000000..5d495a1
--- /dev/null
+++ b/tests/mocks/lsa.cpp
@@ -0,0 +1,58 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014-2017,  The University of Memphis,
+ *                           Regents of the University of California,
+ *                           Arizona Board of Regents.
+ *
+ * This file is part of NLSR (Named-data Link State Routing).
+ * See AUTHORS.md for complete list of NLSR authors and contributors.
+ *
+ * NLSR 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.
+ *
+ * NLSR 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.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * NLSR, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+#include "./lsa.hpp"
+
+namespace nlsr {
+namespace test {
+
+std::string
+MockLsa::getData() const
+{
+  return "";
+}
+
+bool
+MockLsa::initializeFromContent(const std::string& content)
+{
+  boost::char_separator<char> sep("|");
+  boost::tokenizer<boost::char_separator<char> >tokens(content, sep);
+  boost::tokenizer<boost::char_separator<char> >::iterator tok_iter =
+    tokens.begin();
+  m_origRouter = ndn::Name(*tok_iter++);
+  if (!(m_origRouter.size() > 0)) {
+    return false;
+  }
+  try {
+    if (*tok_iter++ != std::to_string(Lsa::Type::MOCK)) {
+      return false;
+    }
+    m_lsSeqNo = boost::lexical_cast<uint32_t>(*tok_iter++);
+    m_expirationTimePoint = ndn::time::fromIsoString(*tok_iter++);
+  }
+  catch (const std::exception& e) {
+    return false;
+  }
+  return true;
+}
+
+} // namespace test
+} // namespace nlsr