@Bean
        public MultifactorAuthenticationProvider duoProvider() {
            return BaseDuoSecurityTests.getDuoSecurityMultifactorAuthenticationProvider();
        }
This is {@link DuoSecurityDirectAuthenticationActionTests}.

@author Misagh Moayyed
@since 6.3.0
support/cas-server-support-duo/src/test/java/org/apereo/cas/adaptors/duo/web/flow/action/DuoSecurityDirectAuthenticationActionTests.java