private void VatValidator_Check_Validate_Result(string vatNumber)
        {
            var vatValidator = new VatValidator();

            vatValidator.Validate(vatNumber);

            Assert.Fail("No exception");
        }
        private void VatValidator_Check_Validate_Result(string vatNumber, bool expectedResult)
        {
            var vatValidator = new VatValidator();

            var result = vatValidator.Validate(vatNumber);

            Assert.AreEqual(result, expectedResult);
        }