nlsr: discover Faces from NFD

refs: #2954

Change-Id: I072972d88bce0e1012e96f33577657048b7df1e1
diff --git a/tests/test-common.cpp b/tests/test-common.cpp
new file mode 100644
index 0000000..e6b5e78
--- /dev/null
+++ b/tests/test-common.cpp
@@ -0,0 +1,64 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014-2017,  The University of Memphis,
+ *                           Regents of the University of California
+ *
+ * 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 "test-common.hpp"
+
+namespace nlsr {
+namespace test {
+
+ndn::Data&
+signData(ndn::Data& data)
+{
+  ndn::SignatureSha256WithRsa fakeSignature;
+  fakeSignature.setValue(ndn::encoding::makeEmptyBlock(ndn::tlv::SignatureValue));
+  data.setSignature(fakeSignature);
+  data.wireEncode();
+
+  return data;
+}
+
+MockNfdMgmtFixture::MockNfdMgmtFixture()
+  : face(std::make_shared<ndn::util::DummyClientFace>(g_ioService))
+{
+}
+
+void
+MockNfdMgmtFixture::signDatasetReply(ndn::Data& data)
+{
+  signData(data);
+}
+
+void
+UnitTestTimeFixture::advanceClocks(const ndn::time::nanoseconds& tick, size_t nTicks)
+{
+  for (size_t i = 0; i < nTicks; ++i) {
+    steadyClock->advance(tick);
+    systemClock->advance(tick);
+
+    if (g_ioService.stopped()) {
+      g_ioService.reset();
+    }
+
+    g_ioService.poll();
+  }
+}
+
+} // namespace test
+} // namespace nlsr