### Question:
CommentService { public void deleteCommentByIds(List<String> commentIds) { commentDao.deleteBatch(commentIds); } CommentService(CommentDao commentDao, CommentMapper commentMapper); Page<CommentDto> findCommentByCondition(CommentDto commentDto, Pageable pageable); CommentDto findCommentByPrimaryKey(String commentId); void saveOrUpdate(CommentDto commentDto); void deleteCommentByIds(List<String> commentIds);  }### Answer:
@Test void testDeleteCommentByIds() { commentService.deleteCommentByIds(Arrays.<String>asList("String")); }