diff --git a/tests/unit/clients/query.t.cpp b/tests/unit/clients/query.t.cpp
new file mode 100644
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+++ b/tests/unit/clients/query.t.cpp
@@ -0,0 +1,86 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2014-2020, 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/query.hpp"
+
+#include "boost-test.hpp"
+#include "key-chain-fixture.hpp"
+
+#include <boost/lexical_cast.hpp>
+
+namespace ndn {
+namespace ndns {
+namespace tests {
+
+BOOST_AUTO_TEST_SUITE(Query)
+
+BOOST_FIXTURE_TEST_CASE(TestCase, KeyChainFixture)
+{
+  auto certIdentity = m_keyChain.createIdentity("/cert/name");
+  Name zone("/net");
+  name::Component qType = ndns::label::NDNS_ITERATIVE_QUERY;
+  ndns::Query q(zone, qType);
+
+  q.setRrLabel(Name("/ndnsim/www"));
+  BOOST_CHECK_EQUAL(q.getRrLabel(), Name("ndnsim/www"));
+  BOOST_CHECK_EQUAL(q.getRrLabel(), Name("/ndnsim/www"));
+  BOOST_CHECK_EQUAL(q.getZone(), zone);
+  BOOST_CHECK_EQUAL(q.getQueryType(), qType);
+
+  q.setRrType(ndns::label::CERT_RR_TYPE);
+  BOOST_CHECK_EQUAL(q.getRrType(), label::CERT_RR_TYPE);
+
+  auto link = make_shared<Link>("/ndn/link/NDNS/test/NS");
+  for (int i = 1; i <= 5; i++) {
+    link->addDelegation(i, std::string("/link/") + to_string(i));
+  }
+  // link has to be signed first, then wireDecode
+  m_keyChain.sign(*link, security::signingByIdentity(certIdentity));
+
+  q.setDelegationListFromLink(*link);
+  BOOST_CHECK_EQUAL(q.getDelegationList(), link->getDelegationList());
+
+  Interest interest = q.toInterest();
+  BOOST_CHECK_EQUAL(interest.getForwardingHint(), link->getDelegationList());
+
+  ndns::Query q2(zone, qType);
+  BOOST_CHECK_EQUAL(q2.fromInterest(zone, interest), true);
+
+  ndns::Query q3;
+  BOOST_CHECK_EQUAL(q3.fromInterest(zone, interest), true);
+
+  BOOST_CHECK_EQUAL(q, q3);
+  BOOST_CHECK_EQUAL(q, q2);
+
+  ndns::Query q4(zone, qType);
+  q4.setRrLabel("/ndnsim/www");
+  q4.setRrType(ndns::label::TXT_RR_TYPE);
+  interest = q4.toInterest();
+  ndns::Query q5;
+
+  BOOST_CHECK_EQUAL(q5.fromInterest(zone, interest), true);
+  BOOST_CHECK_EQUAL(q4, q5);
+  BOOST_CHECK_NE(q2, q4);
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+} // namespace tests
+} // namespace ndns
+} // namespace ndn