@Bean
        public SingleSignOnParticipationStrategy singleSignOnParticipationStrategy() {
            return SingleSignOnParticipationStrategy.alwaysParticipating();
        }
This is {@link UniquePrincipalAuthenticationPolicyTests}.

@author Misagh Moayyed
@since 5.2.0
core/cas-server-core-authentication/src/test/java/org/apereo/cas/authentication/policy/UniquePrincipalAuthenticationPolicyTests.java