public void Options_GlobalEnableSha256Signatures_DoesntBreakJwtSecurityTokenHandler()
{
// The JWT security token handler that is used by IdentityServer3
// uses the global CryptoConfig. This has been causing issues
// when registering the Sha256 algorithm globally, where this
// alters the result of the JWT signature handler lookup.
Options.GlobalEnableSha256XmlSignatures();
var cert = SignedXmlHelper.TestCert;
var token = new JwtSecurityToken(
new JwtHeader(new X509SigningCredentials(SignedXmlHelper.TestCert2)),
new JwtPayload(Enumerable.Empty <Claim>()));
var handler = new JwtSecurityTokenHandler();
handler.Invoking(h => h.WriteToken(token))
.ShouldNotThrow();
}