clients: add dig

Change-Id: I78822e9d68b36973362f0790f3c2f6e676cc6b94
diff --git a/tests/unit/clients/iterative-query-controller.cpp b/tests/unit/clients/iterative-query-controller.cpp
new file mode 100644
index 0000000..0346419
--- /dev/null
+++ b/tests/unit/clients/iterative-query-controller.cpp
@@ -0,0 +1,113 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014, Regents of the University of California.
+ *
+ * This file is part of NDNS (Named Data Networking Domain Name Service).
+ * See AUTHORS.md for complete list of NDNS authors and contributors.
+ *
+ * NDNS 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.
+ *
+ * NDNS 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
+ * NDNS, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "clients/iterative-query-controller.hpp"
+#include "daemon/name-server.hpp"
+#include "logger.hpp"
+#include "../database-test-data.hpp"
+#include "../../boost-test.hpp"
+
+#include <ndn-cxx/util/dummy-client-face.hpp>
+
+#include <boost/asio.hpp>
+
+namespace ndn {
+namespace ndns {
+namespace tests {
+NDNS_LOG_INIT("IterativeQueryControllerTest");
+
+class QueryControllerFixture : public DbTestData
+{
+public:
+  QueryControllerFixture()
+    : producerFace(ndn::util::makeDummyClientFace(io, { false, true }))
+    , consumerFace(ndn::util::makeDummyClientFace(io, { false, true }))
+    , validator(*producerFace)
+    , top(m_root.getName(), m_certName, *producerFace, m_session, m_keyChain, validator)
+    , net(m_net.getName(), m_certName, *producerFace, m_session, m_keyChain, validator)
+    , ndnsim(m_ndnsim.getName(), m_certName, *producerFace, m_session, m_keyChain, validator)
+  {
+    run();
+    producerFace->onInterest += [&] (const Interest& interest) { consumerFace->receive(interest); };
+    consumerFace->onInterest += [&] (const Interest& interest) { producerFace->receive(interest); };
+    producerFace->onData += [&] (const Data& data) { consumerFace->receive(data); };
+    consumerFace->onData += [&] (const Data& data) { producerFace->receive(data); };
+  }
+
+  void
+  run()
+  {
+    io.poll();
+    io.reset();
+  }
+
+public:
+  boost::asio::io_service io;
+  shared_ptr<ndn::util::DummyClientFace> producerFace;
+  shared_ptr<ndn::util::DummyClientFace> consumerFace;
+
+  Name hint;
+  Validator validator;
+  ndns::NameServer top;
+  ndns::NameServer net;
+  ndns::NameServer ndnsim;
+};
+
+
+BOOST_AUTO_TEST_SUITE(IterativeQueryController)
+
+BOOST_FIXTURE_TEST_CASE(Basic, QueryControllerFixture)
+{
+  using std::string;
+  using ndns::NameServer;
+
+  string hint;
+  Name name = m_ndnsim.getName();
+  Name dstLabel(name.append("www"));
+  name::Component rrType("TXT");
+  time::milliseconds lifetime(4000);
+
+  bool hasDataBack = false;
+  auto ctr = make_shared<ndns::IterativeQueryController>(
+    dstLabel, rrType, lifetime,
+    [&hasDataBack] (const Data&, const Response&) {
+      hasDataBack = true;
+      BOOST_CHECK(true);
+    },
+    [&hasDataBack] (uint32_t errCode, const std::string& errMsg) {
+      BOOST_CHECK(false);
+    },
+    *consumerFace);
+
+  // IterativeQueryController is a whole process
+  // the tester should not send Interest one by one
+  // instead of starting it and letting it handle Interest/Data automatically
+  ctr->setNFinishedComps(1);
+
+  ctr->start();
+
+  run();
+  BOOST_CHECK_EQUAL(hasDataBack, true);
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+} // namespace tests
+} // namespace ndns
+} // namespace ndn