public String generateNacosServiceName(String rawServiceName) {
        
        if (rawServiceName.contains(Constants.DEFAULT_GROUP)) {
            return rawServiceName;
        }
        
        return Constants.DEFAULT_GROUP + AddressServerConstants.GROUP_SERVICE_NAME_SEP + rawServiceName;
    }
@Test
    void testGenerateNacosServiceName() {
        AddressServerGeneratorManager manager = new AddressServerGeneratorManager();
    
        final String containDefault = manager.generateNacosServiceName("DEFAULT_GROUP@@test");
        assertEquals("DEFAULT_GROUP@@test", containDefault);
    
        final String product = manager.generateNacosServiceName("product");
        assertEquals("DEFAULT_GROUP@@product", product);
    }