update

src/test/java/rocks/zipcode/quiz5/objectorientation/employee/EmployeePolymorphismTest.java

     }
 
 
-    @Test
+    @Test(expected = ClassCastException.class)
     public void test3() {
-        Assert.assertFalse((Account) (Object) employee instanceof Account);
+        Account account = (Account) (Object) employee;
     }
 }