OutsideSqlExecutorFactory result = invokerAssistant.assistOutsideSqlExecutorFactory();
        assertNull(result);
    }

    // Test assistSQLExceptionDigger
    public void test_assistSQLExceptionDigger() {
        SQLExceptionDigger result = invokerAssistant.assistSQLExceptionDigger();
        assertNull(result);
    }

    // Test assistSQLExceptionHandlerFactory