src: Renaming class to spell out them (Adl, Nhl, Npl, Npt, Npte)

Refs: #1534

Change-Id: If4a205e8ad2419505cc796027a5c863471ef5439
diff --git a/tests/test-adjacent.cpp b/tests/test-adjacent.cpp
index 90be869..e10e30b 100644
--- a/tests/test-adjacent.cpp
+++ b/tests/test-adjacent.cpp
@@ -21,7 +21,7 @@
 
   Adjacent adjacent1(ADJ_NAME_1);
   Adjacent adjacent2(ADJ_NAME_2);
-  BOOST_CHECK(adjacent1.isEqual(adjacent2));
+  BOOST_CHECK(adjacent1 == adjacent2);
 
   adjacent1.setLinkCost(10.5);
   BOOST_CHECK_CLOSE(adjacent1.getLinkCost(), 10.5, 0.0001);