public void CheckAccountNumbersTest()
        {
            var result = Banking.ElevenTest("123456789");

            Assert.IsTrue(result);
        }
        public void CheckAccountStringTest()
        {
            var result = Banking.ElevenTest("abcdefghijklmnopqrstuvwxyz");

            Assert.IsFalse(result);
        }
        public void CheckAccountGiroTest()
        {
            var result = Banking.ElevenTest("8318140");

            Assert.IsFalse(result);
        }
        public void CheckSofinummerTest()
        {
            var result = Banking.ElevenTest("169649167");

            Assert.IsFalse(result);
        }
        public void CheckAccountBankTest()
        {
            var result = Banking.ElevenTest("150483341");

            Assert.IsTrue(result);
        }