TnBeanMetaDataFactory result = invokerAssistant.assistBeanMetaDataFactory();
        assertNull(result);
    }

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

    // Test assistRelationOptionalFactory
    @Test