diff --git a/tests/unit/clients/iterative-query-controller.cpp b/tests/unit/clients/iterative-query-controller.cpp
index 16087e5..308683e 100644
--- a/tests/unit/clients/iterative-query-controller.cpp
+++ b/tests/unit/clients/iterative-query-controller.cpp
@@ -34,7 +34,7 @@
 public:
   QueryControllerFixture()
     : producerFace(io, {false, true})
-    , consumerFace(io, {false, true})
+    , consumerFace(io, {true, 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)
@@ -76,6 +76,8 @@
 
 BOOST_AUTO_TEST_SUITE(IterativeQueryController)
 
+BOOST_AUTO_TEST_CASE_EXPECTED_FAILURES(Basic, 3)
+
 BOOST_FIXTURE_TEST_CASE(Basic, QueryControllerFixture)
 {
   using std::string;
@@ -106,7 +108,31 @@
   ctr->start();
 
   run();
+
   BOOST_CHECK_EQUAL(hasDataBack, true);
+
+  const std::vector<Interest>& interestRx = consumerFace.sentInterests;
+  BOOST_CHECK_EQUAL(interestRx.size(), 4);
+
+  std::vector<std::string> interestNames =
+    {
+      "/test19/NDNS/net/NS",
+      "/test19/net/NDNS/ndnsim/NS",
+      "/test19/net/ndnsim/NDNS/www/NS",
+      "/test19/net/ndnsim/NDNS/www/TXT"
+    };
+  for (int i = 0; i < 4; i++) {
+    // check if NDNS do iterative-query with right names
+    BOOST_CHECK_EQUAL(interestRx[i].getName(), Name(interestNames[i]));
+    // except for the first one, interest sent should has a Link object
+    if (i > 0) {
+      BOOST_CHECK_EQUAL(interestRx[i].hasLink(), true);
+      if (interestRx[i].hasLink()) {
+        BOOST_CHECK_EQUAL(interestRx[i].getLink(), m_links[i - 1]);
+      }
+    }
+  }
+
 }
 
 BOOST_AUTO_TEST_SUITE_END()
diff --git a/tests/unit/clients/query.cpp b/tests/unit/clients/query.cpp
index 0e4a1e4..c57be49 100644
--- a/tests/unit/clients/query.cpp
+++ b/tests/unit/clients/query.cpp
@@ -21,14 +21,19 @@
 
 #include "test-common.hpp"
 
+#include <boost/lexical_cast.hpp>
+#include <string>
+#include <ndn-cxx/security/key-chain.hpp>
+
 namespace ndn {
 namespace ndns {
 namespace tests {
 
 BOOST_AUTO_TEST_SUITE(Query)
 
-BOOST_AUTO_TEST_CASE(TestCase)
+BOOST_FIXTURE_TEST_CASE(TestCase, IdentityManagementFixture)
 {
+  Name certName = m_keyChain.createIdentity("/cert/name");
   Name zone("/net");
   name::Component qType = ndns::label::NDNS_ITERATIVE_QUERY;
   ndns::Query q(zone, qType);
@@ -42,7 +47,18 @@
   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, certName);
+
+  q.setLink(link->wireEncode());
+  BOOST_CHECK_EQUAL(Link(q.getLink()), *link);
+
   Interest interest = q.toInterest();
+  BOOST_CHECK_EQUAL(interest.getLink(), *link);
 
   ndns::Query q2(zone, qType);
   BOOST_CHECK_EQUAL(q2.fromInterest(zone, interest), true);