Rails: Rspec和FactoryGirl协会

Question

我试图为我的控制器编写测试，直到我尝试为相关模型(has_many、belongs_to等)编写之前，一切都进行得很顺利。我已经试着阅读了FactoryGirl关于关联的入门指南，并且我已经尽我所能地尽可能地遵循它，但是我发现了一些错误，比如：

1) GuestsController POST #create with valid attributes saves the guest to the database
 Failure/Error: post :create, guest: FactoryGirl.attributes_for(@guest)
 ArgumentError:
   Factory not registered: #<Guest:0x007fb7b1171298>

我对rails和测试非常陌生。到目前为止，我得到的是：

invites_controller：

...
has_many :guests
...

guests_controller：

....
belongs_to :invite
...

邀请工厂：

FactoryGirl.define do
  factory :invite do |f|
    f.name { Faker::Name.name }
    f.invite_code { Faker::Number.number(4) }

    factory :invite_with_guests do
      transient do
        guests_count 5
      end

      after(:create) do |invite, evaluator|
        create_list(:guest, evaluator.guests_count, invite: invite)
      end
   end
 end
end

客服工厂：

FactoryGirl.define do 
  factory :guest do |f|
    f.name { Faker::Name.name }
    f.attendance_status "yes"
    f.starter "Mushroom"
    f.main "Beef"
    f.dessert "Chicken"
    f.dietary_requirements { Faker::Lorem.words(4) }

    f.association :invite
  end
end

客座控制员：

...
  def create
    @invite = Invite.find(params[:invite_id])
    @guest = @invite.guests.create(guest_params)
    redirect_to edit_invite_path(@invite)
  end
...

客人控制器规范：

...
describe "POST #create" do
  before :each do
    @invite = FactoryGirl.create(:invite_with_guests)
    @guest = @invite.guests.first
  end

  context 'with valid attributes' do
    it 'saves the guest to the database' do
      expect {
        post :create, guest: FactoryGirl.attributes_for(@guest)
      }.to change(Guest,:count).by(1)
    end
  end

  ...
end
...

所有的帮助都很感激。

编辑：

路线：

           Prefix Verb   URI Pattern                                   Controller#Action
    invite_guests GET    /invites/:invite_id/guests(.:format)          guests#index
              POST   /invites/:invite_id/guests(.:format)          guests#create
 new_invite_guest GET    /invites/:invite_id/guests/new(.:format)      guests#new
edit_invite_guest GET    /invites/:invite_id/guests/:id/edit(.:format) guests#edit
     invite_guest GET    /invites/:invite_id/guests/:id(.:format)      guests#show
                  PATCH  /invites/:invite_id/guests/:id(.:format)      guests#update
                  PUT    /invites/:invite_id/guests/:id(.:format)      guests#update
                  DELETE /invites/:invite_id/guests/:id(.:format)      guests#destroy
   lookup_invites GET    /invites/lookup(.:format)                     invites#lookup
          invites GET    /invites(.:format)                            invites#index
                  POST   /invites(.:format)                            invites#create
       new_invite GET    /invites/new(.:format)                        invites#new
      edit_invite GET    /invites/:id/edit(.:format)                   invites#edit
           invite GET    /invites/:id(.:format)                        invites#show
                  PATCH  /invites/:id(.:format)                        invites#update
                  PUT    /invites/:id(.:format)                        invites#update
                  DELETE /invites/:id(.:format)                        invites#destroy
        dashboard GET    /dashboard(.:format)                          invites#index
             root GET    /                                             info#index

编辑2：

我已经按照下面可能的答案更新了来宾控制器规范，它仍然失败

...
describe "POST #create" do
  before :each do
    @invite = FactoryGirl.create(:invite_with_guests)
    @guest = @invite.guests.first
  end

  context 'with valid attributes' do
    it 'saves the guest to the database' do
      expect {
        post :create, guest: @guest.attributes
      }.to change(Guest,:count).by(1)
    end

    it 'redirects the edit invite path'
  end

...
end
...

我得到以下错误：

http://pastebin.com/WdyT6xtK

Answer 1

您已经定义了您的路由，以便在“邀请”下嵌套来宾--因此，当您发布来宾详细信息以创建一个来宾时，您还需要提供嵌套在“邀请”下并将与之关联的邀请。请参见：

POST   /invites/:invite_id/guests(.:format)          guests#create

您的create操作也需要invite_id。您也在控制器中使用该invite_id，因此必须提供它。

尝试：

post :create, invite_id: @invite.id, guest: @guest.attributes

Answer 2

attributes_for接受一个符号，该符号返回可以用来构建对象的属性。

在你的情况下，你需要

expect {
  post :create, guest: @guest.attributes
}.to change(Guest,:count).by(1)

或者定义guest_attributes

let(:guest_attributes){ attributes_for(:guest) }
let(:guest) { create(:guest, guest_attributes) )
...
# create an invite where the first guest is your defined guest

expect {
  post :create, guest: guest_attributes
}.to change(Guest,:count).by(1)