public void when_call_notification_without_variables_then_throw_argument_exception()
{
var httpRequest = WebRequest.Create("http://localhost/url");
httpRequest.Headers.Add("fecha", "Thu, 14 Jun 2012 16:56:25 GMT");
httpRequest.Headers.Add("Autorizacion", "PP 0PN5J17HBGZHT7ZZ3X82:fU6+JLYWzOSGuo76XJzT/Z596Qg=");
_webExecute.Setup(x => x.GetDataFromRequest(It.IsAny<WebRequest>())).Returns(new Dictionary<string, string>());
CreateTransaction().NotificationTransaction(httpRequest);
}