src: Fix first event-interval scheduling

refs: #2615, #2593

Change-Id: I17da4d9acb83299a5666159fb988c1a97220eda8
diff --git a/tests/test-nlsr.cpp b/tests/test-nlsr.cpp
index 01480d9..ec53820 100644
--- a/tests/test-nlsr.cpp
+++ b/tests/test-nlsr.cpp
@@ -98,10 +98,10 @@
 
   nlsr.initialize();
 
-  const HelloProtocol& hello = nlsr.m_helloProtocol;
+  const Lsdb& lsdb = nlsr.getLsdb();
   const RoutingTable& rt = nlsr.getRoutingTable();
 
-  BOOST_CHECK_EQUAL(hello.getAdjLsaBuildInterval(), ndn::time::seconds(3));
+  BOOST_CHECK_EQUAL(lsdb.getAdjLsaBuildInterval(), ndn::time::seconds(3));
   BOOST_CHECK_EQUAL(nlsr.getFirstHelloInterval(), 6);
   BOOST_CHECK_EQUAL(rt.getRoutingCalcInterval(), ndn::time::seconds(9));
 }