Added proper tests for front-controller pattern

front-controller/src/test/java/com/iluwatar/front/controller/ApplicationExceptionTest.java

@@ -0,0 +1,20 @@
+package com.iluwatar.front.controller;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Date: 12/13/15 - 1:35 PM
+ *
+ * @author Jeroen Meulemeester
+ */
+public class ApplicationExceptionTest {
+
+  @Test
+  public void testCause() throws Exception {
+    final Exception cause = new Exception();
+    assertSame(cause, new ApplicationException(cause).getCause());
+  }
+
+}