public void Should_Discover_OpenID_Providers_Using_URI_Syntax()
{
rpid = "rp-discovery-webfinger_acct";
// given
string userid = rpid + "@" + opBaseurl.Host;
OpenIdRelyingParty rp = new OpenIdRelyingParty();
// when
string issuer = rp.ObtainIssuerFromEmail(userid, opBaseurl.ToString());
// then
Assert.AreEqual(issuer.TrimEnd('/'), GetBaseUrl("/").TrimEnd('/'));
}