Rename 'tests/unit-tests' directory to 'tests/unit'

Change-Id: I78ea29938259fac288781bed12fb2399ac7eba26
diff --git a/tests/unit/util/config-file.t.cpp b/tests/unit/util/config-file.t.cpp
new file mode 100644
index 0000000..658018b
--- /dev/null
+++ b/tests/unit/util/config-file.t.cpp
@@ -0,0 +1,70 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2013-2018 Regents of the University of California.
+ *
+ * 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 "util/config-file.hpp"
+#include "../test-home-env-saver.hpp"
+
+#include "boost-test.hpp"
+
+#include <cstdlib>
+
+namespace ndn {
+namespace tests {
+
+BOOST_AUTO_TEST_SUITE(Util)
+BOOST_FIXTURE_TEST_SUITE(TestConfigFile, TestHomeEnvSaver)
+
+BOOST_AUTO_TEST_CASE(Parse)
+{
+  namespace fs = boost::filesystem;
+
+  setenv("TEST_HOME", "tests/unit/util/config-file-home", 1);
+
+  fs::path homePath(fs::absolute(std::getenv("TEST_HOME")));
+  homePath /= ".ndn/client.conf";
+
+  ConfigFile config;
+  BOOST_REQUIRE_EQUAL(config.getPath(), homePath);
+
+  const ConfigFile::Parsed& parsed = config.getParsedConfiguration();
+  BOOST_CHECK_EQUAL(parsed.get<std::string>("a"), "/path/to/nowhere");
+  BOOST_CHECK_EQUAL(parsed.get<std::string>("b"), "some-othervalue.01");
+}
+
+BOOST_AUTO_TEST_CASE(ParseEmptyPath)
+{
+  setenv("TEST_HOME", "tests/unit/util/does/not/exist", 1);
+
+  BOOST_CHECK_NO_THROW(ConfigFile config);
+}
+
+BOOST_AUTO_TEST_CASE(ParseMalformed)
+{
+  setenv("TEST_HOME", "tests/unit/util/config-file-malformed-home", 1);
+
+  BOOST_CHECK_THROW(ConfigFile config, ConfigFile::Error);
+}
+
+BOOST_AUTO_TEST_SUITE_END() // TestConfigFile
+BOOST_AUTO_TEST_SUITE_END() // Util
+
+} // namespace tests
+} // namespace ndn