@Override
    public TnBeanMetaDataFactory assistBeanMetaDataFactory() {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public TnResultSetHandlerFactory assistResultSetHandlerFactory() {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public RelationOptionalFactory assistRelationOptionalFactory() {

        assertNull(result);
    }

    // Test assistResultSetHandlerFactory
    @Test
    public void test_assistResultSetHandlerFactory() {
        TnResultSetHandlerFactory result = invokerAssistant.assistResultSetHandlerFactory();
        assertNull(result);
    }

    // Test assistRelationOptionalFactory
    @Test