helper+model: Fix helpers to work with NFD/ndn-cxx 0.4+

Change-Id: I7ed2893acbda1458383603c0e3c154d3e841405e
Refs: #3560
diff --git a/tests/unit-tests/helper/ndn-fib-helper.t.cpp b/tests/unit-tests/helper/ndn-fib-helper.t.cpp
index 59f4876..60a5967 100644
--- a/tests/unit-tests/helper/ndn-fib-helper.t.cpp
+++ b/tests/unit-tests/helper/ndn-fib-helper.t.cpp
@@ -50,11 +50,11 @@
     Simulator::Stop(Seconds(20.001));
     Simulator::Run();
 
-    BOOST_CHECK_EQUAL(getFace("1", "2")->getFaceStatus().getNOutInterests(), 10);
-    BOOST_CHECK_EQUAL(getFace("1", "2")->getFaceStatus().getNInDatas(), 10);
+    BOOST_CHECK_EQUAL(getFace("1", "2")->getCounters().nOutInterests, 10);
+    BOOST_CHECK_EQUAL(getFace("1", "2")->getCounters().nInData, 10);
 
-    BOOST_CHECK_EQUAL(getFace("2", "1")->getFaceStatus().getNInInterests(), 10);
-    BOOST_CHECK_EQUAL(getFace("2", "1")->getFaceStatus().getNOutDatas(), 10);
+    BOOST_CHECK_EQUAL(getFace("2", "1")->getCounters().nInInterests, 10);
+    BOOST_CHECK_EQUAL(getFace("2", "1")->getCounters().nOutData, 10);
   }
 };