我Ruby on Rails中这个User
类:如何在Rails和RSpec中测试after_destroy回调?
class User < ActiveRecord::Base
after_destroy :ensure_an_admin_remains
private
def ensure_an_admin_remains
if User.where("admin = ?", true).count.zero?
raise "Can't delete Admin."
end
end
end
这个伟大的工程,并导致数据库回滚如果有人不小心删除管理员用户。
问题是,即使使用非管理员用户(由Factory Girl生成)进行测试,它似乎也会中断用户删除操作。这是我的user_controller_spec.rb
:
describe 'DELETE #destroy' do
before :each do
@user = create(:non_admin_user)
sign_in(@user)
end
it "deletes the user" do
expect{
delete :destroy, id: @user
}.to change(User, :count).by(-1)
end
end
每当我运行这个测试,我得到这个错误:
Failure/Error: expect{
count should have been changed by -1, but was changed by 0
不应该有任何错误,但是,因为@user
的管理属性设置为false默认。
有人可以帮我吗?
谢谢...
应该是验证 – apneadiving 2013-03-03 15:04:54