[ONOS-4798] Error Message implementation for YANG utils

Change-Id: Idb13e851258754773f8f447ace69a9393c7c1b3d
diff --git a/utils/yangutils/plugin/src/test/java/org/onosproject/yangutils/parser/impl/listeners/OutputListenerTest.java b/utils/yangutils/plugin/src/test/java/org/onosproject/yangutils/parser/impl/listeners/OutputListenerTest.java
index ea60935..e31f4c4 100644
--- a/utils/yangutils/plugin/src/test/java/org/onosproject/yangutils/parser/impl/listeners/OutputListenerTest.java
+++ b/utils/yangutils/plugin/src/test/java/org/onosproject/yangutils/parser/impl/listeners/OutputListenerTest.java
@@ -71,8 +71,8 @@
         assertThat(yangList.getName(), is("ospf"));
         assertThat(yangList.getKeyList().contains("invalid-interval"), is(true));
         assertThat(yangList.isConfig(), is(true));
-        assertThat(yangList.getMaxElements(), is(10));
-        assertThat(yangList.getMinElements(), is(3));
+        assertThat(yangList.getMaxElements().getMaxElement(), is(10));
+        assertThat(yangList.getMinElements().getMinElement(), is(3));
         leafIterator = yangList.getListOfLeaf().listIterator();
         leafInfo = leafIterator.next();
         assertThat(leafInfo.getName(), is("invalid-interval"));