public void Can_Negotiate_Tls_Feature()
{
XmlElement sentElement = default;
bool? setTlsSend = default;
var featuresResponse = new XmlElement("stream:features", new XmlElement("starttls").Xmlns(XmppNamespaces.Tls));
HandlersRegistry.RegisterTransmitPipeHandler <XmlElement>(request => sentElement = request);
HandlersRegistry.RegisterTransportMessageHandler(TransportMessage.SetTls, () => setTlsSend = true);
MessageSender.SendTransportMessage(TransportMessage.Opened);
MessageSender.SendToReceivePipe(StreamHeader.Client());
MessageSender.SendToReceivePipe(featuresResponse);
Assert.Equal("starttls", sentElement.Name);
MessageSender.SendToReceivePipe(new XmlElement("proceed").Xmlns(XmppNamespaces.Tls));
Assert.True(setTlsSend);
}
