public async System.Threading.Tasks.Task TestMethod1Async()
{
#region comentado
//System.IO.StreamReader sr = new System.IO.StreamReader(@"C:\Users\James\desktop\teste assinatura.xml", false);
//string remessa = sr.ReadToEnd();
X509Certificate2 xCert = CertificateLoader.FromPath(@"C:\Users\James\Desktop\certificado.pfx", "quesam01");
//XmlDocument docRequest = new XmlDocument();
//docRequest.PreserveWhitespace = false;
//docRequest.LoadXml(sr.ReadToEnd());
//sr.Close();
//SignedXml signedXml = new SignedXml();
//XmlNodeList ListInfNFe = docRequest.GetElementsByTagName("InfRps");
//foreach (XmlElement infNFe in ListInfNFe)
//{
// string id = infNFe.Attributes.GetNamedItem("Id").InnerText;
// signedXml = new SignedXml(infNFe);
// signedXml.SigningKey = xCert.PrivateKey;
// Reference reference = new Reference("#" + id);
// reference.AddTransform(new XmlDsigEnvelopedSignatureTransform());
// reference.AddTransform(new XmlDsigC14NTransform());
// signedXml.AddReference(reference);
// KeyInfo keyInfo = new KeyInfo();
// keyInfo.AddClause(new KeyInfoX509Data(xCert));
// signedXml.KeyInfo = keyInfo;
// signedXml.ComputeSignature();
// XmlElement xmlSignature = docRequest.CreateElement("Signature", "http://www.w3.org/2000/09/xmldsig#");
// XmlElement xmlSignedInfo = signedXml.SignedInfo.GetXml();
// XmlElement xmlKeyInfo = signedXml.KeyInfo.GetXml();
// XmlElement xmlSignatureValue = docRequest.CreateElement("SignatureValue", xmlSignature.NamespaceURI);
// string signBase64 = Convert.ToBase64String(signedXml.Signature.SignatureValue);
// XmlText text = docRequest.CreateTextNode(signBase64);
// xmlSignatureValue.AppendChild(text);
// xmlSignature.AppendChild(docRequest.ImportNode(xmlSignedInfo, true));
// xmlSignature.AppendChild(xmlSignatureValue);
// xmlSignature.AppendChild(docRequest.ImportNode(xmlKeyInfo, true));
// var evento = docRequest.GetElementsByTagName("TAG_EXTERNA_QUE_CONTERA_A_ASSINATURA");
// evento[0].AppendChild(xmlSignature);
//}
#endregion
//AssinarXml(@"C:\Users\James\desktop\teste assinatura.xml", "Rps", "InfRps", xCert);
AssinaturaDigital assinaturaDigital = new AssinaturaDigital();
System.IO.StreamReader sr = new System.IO.StreamReader(@"C:\Users\James\desktop\teste assinatura.xml", false);
string remessa = sr.ReadToEnd();
assinaturaDigital.Assinar(remessa, "InfRps", xCert);
assinaturaDigital.Assinar(assinaturaDigital.XMLStringAssinado, "LoteRps", xCert, "Rps");
sr.Close();
StreamWriter sw = new StreamWriter(@"C:\Users\James\desktop\teste assinatura.xml");
await sw.WriteAsync(assinaturaDigital.XMLStringAssinado.ToCharArray());
sw.Close();
// AssinarXml(@"C:\Users\James\desktop\teste assinatura.xml", "EnviarLoteRpsEnvio", "LoteRps", xCert);
}