public void TarjetaValidaVisa()
        {
            var clase = new ValidacionClass();
            var resp  = clase.Validar10("4564771001249453");

            Assert.AreEqual(true, resp);
        }
        public void TarjetaInvalida()
        {
            var clase = new ValidacionClass();
            var resp  = clase.Validar10("5416781202580493");

            Assert.AreEqual(false, resp);
        }
        public void TarjetaValidaMastercard()
        {
            var clase = new ValidacionClass();
            var resp  = clase.Validar10("5416781202580496");

            Assert.AreEqual(true, resp);
        }