net: move network-related files to src/net

Some namespaces are changed:

* ndn::util::FaceUri is now ndn::FaceUri
* ndn::util::ethernet is now ndn::ethernet
* ndn::util::NetworkMonitor and related classes are now in ndn::net

refs #3940

Change-Id: Ia4754caef9726efc73f5a303cec46fc95c744d70
diff --git a/tests/unit-tests/net/ethernet.t.cpp b/tests/unit-tests/net/ethernet.t.cpp
new file mode 100644
index 0000000..cfcd6cb
--- /dev/null
+++ b/tests/unit-tests/net/ethernet.t.cpp
@@ -0,0 +1,117 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014-2017 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 ndn-cxx library (NDN C++ library with eXperimental eXtensions).
+ *
+ * ndn-cxx library is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * ndn-cxx library 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 Lesser General Public License for more details.
+ *
+ * You should have received copies of the GNU General Public License and GNU Lesser
+ * General Public License along with ndn-cxx, e.g., in COPYING.md file.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
+ */
+
+#include "net/ethernet.hpp"
+
+#include "boost-test.hpp"
+
+namespace ndn {
+namespace tests {
+
+BOOST_AUTO_TEST_SUITE(Net)
+BOOST_AUTO_TEST_SUITE(TestEthernet)
+
+BOOST_AUTO_TEST_CASE(Basic)
+{
+  ethernet::Address a;
+  BOOST_CHECK(a.isNull());
+
+  a = {0x01, 0x23, 0x45, 0x67, 0x89, 0xAB};
+  ethernet::Address b(0x01, 0x23, 0x45, 0x67, 0x89, 0xAB);
+  const uint8_t bytes[] = {0x01, 0x23, 0x45, 0x67, 0x89, 0xAB};
+  ethernet::Address c(bytes);
+  ethernet::Address d(a);
+  ethernet::Address e;
+  e = a;
+
+  BOOST_CHECK_EQUAL(a, b);
+  BOOST_CHECK_EQUAL(a, c);
+  BOOST_CHECK_EQUAL(a, d);
+  BOOST_CHECK_EQUAL(a, e);
+
+  BOOST_CHECK(ethernet::getBroadcastAddress().isBroadcast());
+  BOOST_CHECK(ethernet::getDefaultMulticastAddress().isMulticast());
+}
+
+BOOST_AUTO_TEST_CASE(ToString)
+{
+  BOOST_CHECK_EQUAL(ethernet::Address().toString('-'),
+                    "00-00-00-00-00-00");
+  BOOST_CHECK_EQUAL(ethernet::getBroadcastAddress().toString(),
+                    "ff:ff:ff:ff:ff:ff");
+  BOOST_CHECK_EQUAL(ethernet::Address(0x01, 0x23, 0x45, 0x67, 0x89, 0xAB).toString('-'),
+                    "01-23-45-67-89-ab");
+  BOOST_CHECK_EQUAL(ethernet::Address(0x01, 0x23, 0x45, 0x67, 0x89, 0xAB).toString(),
+                    "01:23:45:67:89:ab");
+}
+
+BOOST_AUTO_TEST_CASE(FromString)
+{
+  BOOST_CHECK_EQUAL(ethernet::Address::fromString("0:0:0:0:0:0"),
+                    ethernet::Address());
+  BOOST_CHECK_EQUAL(ethernet::Address::fromString("ff-ff-ff-ff-ff-ff"),
+                    ethernet::getBroadcastAddress());
+  BOOST_CHECK_EQUAL(ethernet::Address::fromString("de:ad:be:ef:1:2"),
+                    ethernet::Address(0xde, 0xad, 0xbe, 0xef, 0x01, 0x02));
+  BOOST_CHECK_EQUAL(ethernet::Address::fromString("DE:AD:BE:EF:1:2"),
+                    ethernet::Address(0xde, 0xad, 0xbe, 0xef, 0x01, 0x02));
+
+  // malformed inputs
+  BOOST_CHECK_EQUAL(ethernet::Address::fromString("01.23.45.67.89.ab"),
+                    ethernet::Address());
+  BOOST_CHECK_EQUAL(ethernet::Address::fromString("01:23:45 :67:89:ab"),
+                    ethernet::Address());
+  BOOST_CHECK_EQUAL(ethernet::Address::fromString("01:23:45:67:89::1"),
+                    ethernet::Address());
+  BOOST_CHECK_EQUAL(ethernet::Address::fromString("01-23-45-67-89"),
+                    ethernet::Address());
+  BOOST_CHECK_EQUAL(ethernet::Address::fromString("01:23:45:67:89:ab:cd"),
+                    ethernet::Address());
+  BOOST_CHECK_EQUAL(ethernet::Address::fromString("01:23:45:67-89-ab"),
+                    ethernet::Address());
+  BOOST_CHECK_EQUAL(ethernet::Address::fromString("qw-er-ty-12-34-56"),
+                    ethernet::Address());
+  BOOST_CHECK_EQUAL(ethernet::Address::fromString("this-is-not-an-ethernet-address"),
+                    ethernet::Address());
+  BOOST_CHECK_EQUAL(ethernet::Address::fromString("foobar"),
+                    ethernet::Address());
+  BOOST_CHECK_EQUAL(ethernet::Address::fromString(""),
+                    ethernet::Address());
+}
+
+BOOST_AUTO_TEST_CASE(StdHash)
+{
+  // make sure we can use ethernet::Address as key type in std::unordered_map
+  std::hash<ethernet::Address> h;
+  BOOST_CHECK_NO_THROW(h(ethernet::getDefaultMulticastAddress()));
+}
+
+BOOST_AUTO_TEST_SUITE_END() // TestEthernet
+BOOST_AUTO_TEST_SUITE_END() // Net
+
+} // namespace tests
+} // namespace ndn