removed code duplication in translator, and addressed review comments

Change-Id: I27767a81c4bf279c80d2b98192f75f8f507b4457
diff --git a/src/test/java/org/onosproject/yangutils/parser/impl/listeners/UnitsListenerTest.java b/src/test/java/org/onosproject/yangutils/parser/impl/listeners/UnitsListenerTest.java
index 53611fe..500f9a8 100644
--- a/src/test/java/org/onosproject/yangutils/parser/impl/listeners/UnitsListenerTest.java
+++ b/src/test/java/org/onosproject/yangutils/parser/impl/listeners/UnitsListenerTest.java
@@ -54,7 +54,7 @@
         YangNode node = manager.getDataModel("src/test/resources/UnitsStatement.yang");
 
         // Check whether the data model tree returned is of type module.
-        assertThat((node instanceof YangModule), is(true));
+        assertThat(node instanceof YangModule, is(true));
 
         // Check whether the node type is set properly to module.
         assertThat(node.getNodeType(), is(YangNodeType.MODULE_NODE));
@@ -103,7 +103,7 @@
         YangNode node = manager.getDataModel("src/test/resources/UnitsStatementOrder.yang");
 
         // Check whether the data model tree returned is of type module.
-        assertThat((node instanceof YangModule), is(true));
+        assertThat(node instanceof YangModule, is(true));
 
         // Check whether the node type is set properly to module.
         assertThat(node.getNodeType(), is(YangNodeType.MODULE_NODE));
@@ -135,7 +135,7 @@
         YangNode node = manager.getDataModel("src/test/resources/UnitsDefaultValue.yang");
 
         // Check whether the data model tree returned is of type module.
-        assertThat((node instanceof YangModule), is(true));
+        assertThat(node instanceof YangModule, is(true));
 
         // Check whether the node type is set properly to module.
         assertThat(node.getNodeType(), is(YangNodeType.MODULE_NODE));
@@ -170,7 +170,7 @@
         YangNode node = manager.getDataModel("src/test/resources/LeafListSubStatementUnits.yang");
 
         // Check whether the data model tree returned is of type module.
-        assertThat((node instanceof YangModule), is(true));
+        assertThat(node instanceof YangModule, is(true));
 
         // Check whether the node type is set properly to module.
         assertThat(node.getNodeType(), is(YangNodeType.MODULE_NODE));