假设我有以下ActiveRecord类:
class ToastMitten < ActiveRecord::Base before_save :brush_off_crumbs end
有没有一种干净的方法来测试:brush_off_crumbs已被设置为before_save回调?
通过“干净”我的意思是:
>“没有实际储蓄”,因为
>这很慢
>我不需要测试ActiveRecord是否正确处理了before_save指令;我需要测试一下,我正确告诉它在保存之前该做什么.
>“没有黑客攻击无证方法”
我发现了一种满足标准#1而不是#2的方法:
it "should call have brush_off_crumbs as a before_save callback" do # undocumented voodoo before_save_callbacks = ToastMitten._save_callbacks.select do |callback| callback.kind.eql?(:before) end # vile incantations before_save_callbacks.map(&:raw_filter).should include(:brush_off_crumbs) end
解决方法
使用run_callbacks
这不那么hacky,但不完美:
it "is called as a before_save callback" do revenue_object.should_receive(:record_financial_changes) revenue_object.run_callbacks(:save) do # Bail from the saving process,so we'll kNow that if the method was # called,it was done before saving false end end
使用这种技术测试after_save将更加尴尬.
原文地址:https://www.jb51.cc/ruby/265265.html
版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 dio@foxmail.com 举报,一经查实,本站将立刻删除。