TLS13AuthenticationTestCase currently has a test for two-way TLS (where the client and server both present their certificates during the TLS handshake).

It would be good to add a test for one-way TLS (where only the server presents its certificate during the TLS handshake).

The client SSLContext configuration is specified in https://github.com/wildfly-security/wildfly-elytron/blob/1.x/tests/base/src/test/resources/org/wildfly/security/ssl/wildfly-ssl-test-config-v1_5.xml. Notice that for the two-way TLS case, both a key-store and trust-store are configured. For the one-way TLS case, only the trust-store needs to be configured.