用显著的

我有一个经过验证的Rails模型:

  validates_numericality_of(:insert_oz,
                            :allow_blank=>true,
                            :greater_than=>0,
                            :if=>(proc do |note|
                                    !note.insert_pages.nil? &&
                                       note.insert_pages > 0
                                  end))

使用卓越,如何测试使用 :if 选择权?

如果我做了显而易见的事情,并将验证添加到我的规范中,那么将“validates”更改为“should\u validate”:

  should_validate_numericality_of(:insert_oz,
                                  :allow_blank=>true,
                                  :greater_than=>0,
                                  :if=>(proc do |note|
                                          !note.insert_pages.nil? &&
                                            note.insert_pages > 0
                                        end))

然后规范失败,并显示以下消息:

'Processingnote should ensure numericality of insert oz is greater than 0 and allowing blank values' FAILED
Expected Processingnote to be invalid when insert oz is less than 1