diff --git a/tests/unit-tests/helper/ndn-network-region-table-helper.t.cpp b/tests/unit-tests/helper/ndn-network-region-table-helper.t.cpp
new file mode 100644
index 0000000..c683ae4
--- /dev/null
+++ b/tests/unit-tests/helper/ndn-network-region-table-helper.t.cpp
@@ -0,0 +1,228 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2011-2016  Regents of the University of California.
+ *
+ * This file is part of ndnSIM. See AUTHORS for complete list of ndnSIM authors and
+ * contributors.
+ *
+ * ndnSIM 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.
+ *
+ * ndnSIM 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
+ * ndnSIM, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+#include "helper/ndn-network-region-table-helper.hpp"
+#include "helper/ndn-app-helper.hpp"
+
+#include "../tests-common.hpp"
+
+namespace ns3 {
+namespace ndn {
+
+BOOST_AUTO_TEST_SUITE(HelperNdnNetworkRegionTableHelper)
+
+class BasicFixture : public ScenarioHelperWithCleanupFixture
+{
+public:
+  BasicFixture()
+  {
+    createTopology({
+     {"1"}
+    });
+  }
+
+  ~BasicFixture()
+  {
+  }
+};
+
+BOOST_FIXTURE_TEST_SUITE(Basic, BasicFixture)
+
+BOOST_AUTO_TEST_CASE(AddBase)
+{
+  NetworkRegionTableHelper::AddRegionName(getNode("1"), Name("/ucla"));
+  BOOST_CHECK_EQUAL(getNode("1")->GetObject<L3Protocol>()->getForwarder()->getNetworkRegionTable().count("/ucla"), 1);
+}
+
+BOOST_AUTO_TEST_CASE(RemoveBase){
+  NetworkRegionTableHelper::AddRegionName(getNode("1"), Name("/ucla"));
+  NetworkRegionTableHelper::RemoveRegionName(getNode("1"), Name("/ucla"));
+  BOOST_CHECK_EQUAL(getNode("1")->GetObject<L3Protocol>()->getForwarder()->getNetworkRegionTable().count("/ucla"), 0);
+}
+
+BOOST_AUTO_TEST_CASE(AddSet)
+{
+  NetworkRegionTableHelper::AddRegionName(getNode("1"), { Name("/ucla"), Name("/att") });
+  BOOST_CHECK_EQUAL(getNode("1")->GetObject<L3Protocol>()->getForwarder()->getNetworkRegionTable().count("/ucla"), 1);
+  BOOST_CHECK_EQUAL(getNode("1")->GetObject<L3Protocol>()->getForwarder()->getNetworkRegionTable().count("/att"), 1);
+  BOOST_CHECK_EQUAL(getNode("1")->GetObject<L3Protocol>()->getForwarder()->getNetworkRegionTable().size(), 2);
+}
+
+BOOST_AUTO_TEST_CASE(RemoveSet)
+{
+  NetworkRegionTableHelper::AddRegionName(getNode("1"), { "/ucla", "/att" });
+  NetworkRegionTableHelper::RemoveRegionName(getNode("1"), { "/att", "/ucla" });
+  BOOST_CHECK_EQUAL(getNode("1")->GetObject<L3Protocol>()->getForwarder()->getNetworkRegionTable().empty(), true);
+}
+
+BOOST_AUTO_TEST_CASE(Empty)
+{
+  NetworkRegionTableHelper::AddRegionName(getNode("1"), { Name("/ucla"), Name("/att") });
+  NetworkRegionTableHelper::AddRegionName(getNode("1"), Name("/ndnSIM"));
+  NetworkRegionTableHelper::EmptyNetworkRegionTable(getNode("1"));
+  BOOST_CHECK_EQUAL(getNode("1")->GetObject<L3Protocol>()->getForwarder()->getNetworkRegionTable().empty(), true);
+}
+
+BOOST_AUTO_TEST_SUITE_END() // Basic
+
+class MultiNodeWithAppFixture;
+class TesterApp
+{
+public:
+  TesterApp(const Interest& interest, MultiNodeWithAppFixture* fixture);
+
+protected:
+  ::ndn::Face m_face;
+};
+
+Block
+makeLink(const Name& delegation)
+{
+  ::ndn::Link link("/LINK");
+  link.addDelegation(1, delegation);
+  ndn::StackHelper::getKeyChain().sign(link, ::ndn::security::SigningInfo(::ndn::security::SigningInfo::SIGNER_TYPE_SHA256));
+  return link.wireEncode();
+}
+
+class MultiNodeWithAppFixture : public ScenarioHelperWithCleanupFixture
+{
+public:
+  MultiNodeWithAppFixture()
+    : m_nData(0)
+    , m_nTimeouts(0)
+    , m_nNacks(0)
+  {
+    createTopology({
+        {"1", "2"}
+      });
+
+    addApps({
+        {"2", "ns3::ndn::Producer",
+            {{"Prefix", "/prefix"}, {"PayloadSize", "1024"}},
+            "0s", "100s"}
+      });
+
+    addRoutes({
+        {"1", "2", "/otherPrefix", 1},
+      });
+  }
+
+public:
+  size_t m_nData;
+  size_t m_nTimeouts;
+  size_t m_nNacks;
+};
+
+TesterApp::TesterApp(const Interest& interest, MultiNodeWithAppFixture* fixture)
+{
+  m_face.expressInterest(interest,
+                         std::bind([fixture] {
+                             ++fixture->m_nData;
+                           }),
+                         std::bind([fixture] {
+                             ++fixture->m_nTimeouts;
+                           }),
+                         std::bind([fixture] {
+                             ++fixture->m_nNacks;
+                           }));
+}
+
+
+BOOST_FIXTURE_TEST_SUITE(MultiNode, MultiNodeWithAppFixture)
+
+BOOST_AUTO_TEST_CASE(WithoutNetworkRegion)
+{
+  FactoryCallbackApp::Install(getNode("1"), [this] () -> shared_ptr<void> {
+      Interest i("/prefix/someData");
+      i.setLink(makeLink("/otherPrefix"));
+      return make_shared<TesterApp>(i, this);
+    })
+    .Start(Seconds(0.01));
+
+  Simulator::Stop(Seconds(20.001));
+  Simulator::Run();
+
+  BOOST_CHECK_EQUAL(this->m_nData, 0);
+  BOOST_CHECK_EQUAL(m_nTimeouts, 0);
+  BOOST_CHECK_EQUAL(m_nNacks, 1);
+}
+
+BOOST_AUTO_TEST_CASE(WithNetworkRegion)
+{
+  NetworkRegionTableHelper::AddRegionName(getNode("2"), Name("/otherPrefix"));
+
+  FactoryCallbackApp::Install(getNode("1"), [this] () -> shared_ptr<void> {
+      Interest i("/prefix/someData");
+      i.setLink(makeLink("/otherPrefix"));
+      return make_shared<TesterApp>(i, this);
+    })
+    .Start(Seconds(0.01));
+
+  Simulator::Stop(Seconds(20.001));
+  Simulator::Run();
+
+  BOOST_CHECK_EQUAL(m_nData, 1);
+  BOOST_CHECK_EQUAL(m_nTimeouts, 0);
+  BOOST_CHECK_EQUAL(m_nNacks, 0);
+}
+
+BOOST_AUTO_TEST_CASE(WithMoreSpecificNetworkRegion)
+{
+  NetworkRegionTableHelper::AddRegionName(getNode("2"), Name("/otherPrefix/moreSpecific"));
+
+  FactoryCallbackApp::Install(getNode("1"), [this] () -> shared_ptr<void> {
+      Interest i("/prefix/someData");
+      i.setLink(makeLink("/otherPrefix"));
+      return make_shared<TesterApp>(i, this);
+    })
+    .Start(Seconds(0.01));
+
+  Simulator::Stop(Seconds(20.001));
+  Simulator::Run();
+
+  BOOST_CHECK_EQUAL(m_nData, 1);
+  BOOST_CHECK_EQUAL(m_nTimeouts, 0);
+  BOOST_CHECK_EQUAL(m_nNacks, 0);
+}
+
+BOOST_AUTO_TEST_CASE(WithLessSpecificLink)
+{
+  NetworkRegionTableHelper::AddRegionName(getNode("2"), Name("/otherPrefix"));
+
+  FactoryCallbackApp::Install(getNode("1"), [this] () -> shared_ptr<void> {
+      Interest i("/prefix/someData");
+      i.setLink(makeLink("/otherPrefix/moreSpecific"));
+      return make_shared<TesterApp>(i, this);
+    })
+    .Start(Seconds(0.01));
+
+  Simulator::Stop(Seconds(20.001));
+  Simulator::Run();
+
+  BOOST_CHECK_EQUAL(m_nData, 0);
+  BOOST_CHECK_EQUAL(m_nTimeouts, 0);
+  BOOST_CHECK_EQUAL(m_nNacks, 1);
+}
+
+BOOST_AUTO_TEST_SUITE_END() // MultiNode
+
+BOOST_AUTO_TEST_SUITE_END() // HelperNdnNetworkRegionTableHelper
+
+} // namespace ndn
+} // namespace ns3