diff --git a/acyclic-visitor/src/test/java/com/iluwatar/acyclicvisitor/ConfigureForDosVisitorTest.java b/acyclic-visitor/src/test/java/com/iluwatar/acyclicvisitor/ConfigureForDosVisitorTest.java
index 78d442caa..e8d6ba079 100644
--- a/acyclic-visitor/src/test/java/com/iluwatar/acyclicvisitor/ConfigureForDosVisitorTest.java
+++ b/acyclic-visitor/src/test/java/com/iluwatar/acyclicvisitor/ConfigureForDosVisitorTest.java
@@ -49,9 +49,9 @@ public class ConfigureForDosVisitorTest {
   @Test
   public void testVisitForZoom() {    
     ConfigureForDosVisitor conDos = new ConfigureForDosVisitor();
-    Zoom zoom = mock(Zoom.class);
+    Zoom zoom = new Zoom();
     
-    ((ZoomVisitor)conDos).visit(zoom);
+    conDos.visit(zoom);
     
     assertThat(logger.getLoggingEvents()).extracting("level", "message").contains(
         tuple(INFO, zoom + " used with Dos configurator."));
@@ -60,9 +60,9 @@ public class ConfigureForDosVisitorTest {
   @Test
   public void testVisitForHayes() {
     ConfigureForDosVisitor conDos = new ConfigureForDosVisitor();
-    Hayes hayes = mock(Hayes.class);
+    Hayes hayes = new Hayes();
     
-    ((HayesVisitor)conDos).visit(hayes);
+    conDos.visit(hayes);
     
     assertThat(logger.getLoggingEvents()).extracting("level", "message").contains(
         tuple(INFO, hayes + " used with Dos configurator."));
diff --git a/acyclic-visitor/src/test/java/com/iluwatar/acyclicvisitor/ConfigureForUnixVisitorTest.java b/acyclic-visitor/src/test/java/com/iluwatar/acyclicvisitor/ConfigureForUnixVisitorTest.java
index 449d242dc..0cee046a8 100644
--- a/acyclic-visitor/src/test/java/com/iluwatar/acyclicvisitor/ConfigureForUnixVisitorTest.java
+++ b/acyclic-visitor/src/test/java/com/iluwatar/acyclicvisitor/ConfigureForUnixVisitorTest.java
@@ -55,9 +55,9 @@ public class ConfigureForUnixVisitorTest {
   @Test
   public void testVisitForZoom() {
     ConfigureForUnixVisitor conUnix = new ConfigureForUnixVisitor();
-    Zoom zoom = mock(Zoom.class);
+    Zoom zoom = new Zoom();
     
-    ((ZoomVisitor)conUnix).visit(zoom);
+    conUnix.visit(zoom);
     
     assertThat(logger.getLoggingEvents()).extracting("level", "message").contains(
         tuple(INFO, zoom + " used with Unix configurator."));