private static ExplicitSignatureTrustEngineProvider getTrustEngine() {
        var config = getSaml2Configuration();

        var idp = new SAML2IdentityProviderMetadataResolver(config);
        var sp = new SAML2ServiceProviderMetadataResolver(config);
        return new ExplicitSignatureTrustEngineProvider(idp, sp);
    }
This is {@link SAML2LogoutValidatorTests}.

@author Misagh Moayyed
@since 5.0.0
pac4j-saml/src/test/java/org/pac4j/saml/logout/impl/SAML2LogoutValidatorTests.java