private static Map<String, String> getProperties() {
        return Map.of(
            PropertiesConstants.CAS_PROTOCOL + ".1", "CAS20",
            PropertiesConstants.CAS_LOGIN_URL + ".1", "https://example.com/cas/login",
            PropertiesConstants.CAS_PROTOCOL + ".2", "CAS30",
            PropertiesConstants.CAS_LOGIN_URL + ".2", "https://example.com/cas/login");
    }
This is {@link RestfulDelegatedIdentityProviderFactoryTests}.

@author Misagh Moayyed
@since 6.2.0
support/cas-server-support-pac4j-webflow/src/test/java/org/apereo/cas/support/pac4j/clients/RestfulDelegatedIdentityProviderFactoryTests.java