@ParameterizedTest
    @ArgumentsSource(SslTransportLayerArgumentsProvider.class)
    public void testCustomServerSslEngineFactory(Args args) throws Exception {
        args.sslServerConfigs.put(SslConfigs.SSL_ENGINE_FACTORY_CLASS_CONFIG, TestSslUtils.TestSslEngineFactory.class);
        verifySslConfigs(args);
    }
Tests if server can plugin customize ssl.engine.factory
clients/src/test/java/org/apache/kafka/common/network/SslTransportLayerTest.java