public void TesteDNVValida()
        {
            ValidacoesExtras ve = new ValidacoesExtras();

            Assert.AreEqual(ve.ValidarDNV("01235640"), "01235640");
            Assert.AreEqual(ve.ValidarDNV("03935640"), "03935640");
            Assert.AreEqual(ve.ValidarDNV("10236543"), "10236543");
            Assert.AreEqual(ve.ValidarDNV("44231654"), "44231654-5");
            Assert.AreEqual(ve.ValidarDNV("46231654"), "46231654-7");
            Assert.AreEqual(ve.ValidarDNV("47965102"), "47965102-9");
        }