public void throwException()
            {   //Arrange
                string IbanNumber      = "2734471529361444";
                bool   exceptionThrown = true;

                //Act
                try
                {
                    Iban.IsPaldindrome(IbanNumber);
                }
                catch (ExpectedExceptionAttribute) {
                    exceptionThrown = true;
                }
                //Assert
                Assert.IsTrue(exceptionThrown);
            }