Question

我正在编写RSpec控制器测试，但我遇到了以下问题。

这种关系是发票属于购买，而购买有很多发票。

我的控制器有：

class InvoicesController < ApplicationController
  def index
    @invoices = Invoice.all
  end

  def new
    @purchase = Purchase.find(params[:purchase])
    @invoice = Invoice.new(:purchase_id => params[:purchase])
  end

我的工厂有：

FactoryGirl.define do
  factory :invoice do |f|
    sequence(:id) { |number| number }
    f.purchase_id {rand(1..30)}
    f.number { FFaker::String.from_regexp(/\A[A-Za-z0-9]+\z/) }
    f.terms { FFaker::String.from_regexp(/\A[A-Za-z0-9\s]+\z/) }
    f.currency { FFaker::String.from_regexp(/\A[A-Z]+\z/) }
    f.total_due {'25000.00'}
    f.current_balance {'12500.00'}
    f.due_date { FFaker::Time.date }
    f.notes { FFaker::HipsterIpsum.paragraph }
    f.status {[:open, :paid, :canceled].sample}
    purchase
  end

  factory :invalid_invoice, parent: :invoice do |f|
    f.status nil
  end
end

我的控制器规范（只是有问题的部分）有：

describe "GET new" do
    it "assigns a new invoice to @invoice" do
      invoice = FactoryGirl.create(:invoice)
      get :new
      expect(assigns(:invoice)).to_not eq(invoice)
    end

    it "renders the :new template" do
      get :new
      expect(response).to render_template :new
    end
  end

在我的路线中，我有：

purchases GET                       /purchases(.:format)                        purchases#index
                                 POST                      /purchases(.:format)                        purchases#create
                    new_purchase GET                       /purchases/new(.:format)                    purchases#new
                   edit_purchase GET                       /purchases/:id/edit(.:format)               purchases#edit
                        purchase GET                       /purchases/:id(.:format)                    purchases#show
                                 PATCH                     /purchases/:id(.:format)                    purchases#update
                                 PUT                       /purchases/:id(.:format)                    purchases#update
                                 DELETE                    /purchases/:id(.:format)                    purchases#destroy

invoices GET                       /invoices(.:format)                         invoices#index
                                 POST                      /invoices(.:format)                         invoices#create
                     new_invoice GET                       /invoices/new(.:format)                     invoices#new
                    edit_invoice GET                       /invoices/:id/edit(.:format)                invoices#edit
                         invoice GET                       /invoices/:id(.:format)                     invoices#show
                                 PATCH                     /invoices/:id(.:format)                     invoices#update
                                 PUT                       /invoices/:id(.:format)                     invoices#update
                                 DELETE                    /invoices/:id(.:format)                     invoices#destroy

当我运行测试时，我得到了这个：

1) InvoicesController GET new assigns a new invoice to @invoice
     Failure/Error: get :new
     ActiveRecord::RecordNotFound:
       Couldn't find Purchase with 'id'=
     # ./app/controllers/invoices_controller.rb:7:in `new'
     # ./spec/controllers/invoices_controller_spec.rb:38:in `block (3 levels) in <top (required)>'

  2) InvoicesController GET new renders the :new template
     Failure/Error: get :new
     ActiveRecord::RecordNotFound:
       Couldn't find Purchase with 'id'=
     # ./app/controllers/invoices_controller.rb:7:in `new'
     # ./spec/controllers/invoices_controller_spec.rb:43:in `block (3 levels) in <top (required)>'

以下是test.log

的摘录

[1m [36m（0.1ms）[0m [1mRELEASE SAVEPOINT active_record_1 [0m] [1m [35m（0.1ms）[0m SAVEPOINT active_record_1 [1m [36mSQL（0.3ms）[0m [1mINSERT INTO＆＃34;购买＆＃34; （＆＃34; id＆＃34;，＆＃34; vendor_id＆＃34;，＆＃34; order_number＆＃34;，＆＃34; status＆＃34;，＆＃34; notes＆＃34;，＆＃34; tradegecko_url＆＃34;，＆＃34; created_at＆＃34;，＆＃34; updated_at＆＃34;）VALUES（$ 1，$ 2，$ 3，$ 4，$ 5，$ 6，$ 7，$ 8）返回＆＃34; id＆＃34; [0m [[＆＃34; id＆＃34;，4]，[＆＃34; vendor_id＆＃34;，4]，[＆＃34; order_number＆＃34;，＆＃34; zzz＆＃34;]，[ ＆＃34;状态＆＃34;，＆＃34;取消＆＃34;]，[＆＃34;注意＆＃34;，＆＃34; Jean短裤陈词滥调威廉斯堡原始牛仔布将一只鸟放在它的斜挎包上。 Shoreditch keytar Brooklyn lomo早午餐。 Mcsweeney的Cosby毛衣+1 PBR Austin生物柴油freegan。＆＃34;]，[＆＃34; tradegecko_url＆＃34;，＆＃34; http://gorczany.info＆＃34;]，[＆＃34; created_at＆＃34;，＆＃34; 2016-07-19 14：51：00.616108＆＃34;]，[＆＃34; updated_at＆＃34;，＆＃34; 2016-07-19 14：51：00.616108＆＃34;]] [1m [35m（0.1ms）[0m RELEASE SAVEPOINT active_record_1 [1m [36m（0.1ms）[0m [1mSAVEPOINT active_record_1 [0m [1m [35mSQL（0.3ms）[0m INSERT INTO＆＃34;发票＆＃34; （＆＃34; id＆＃34;，＆＃34; purchase_id＆＃34;，＆＃34; number＆＃34;，＆＃34; terms＆＃34;，＆＃34; currency＆＃34;，＆＃34; total_due＆＃34;，＆＃34; current_balance＆＃34;，＆＃34; due_date＆＃34;，＆＃34; notes＆＃34;，＆＃34; status＆＃34;，＆＃34; created_at＆＃34;，＆＃34; updated_at＆＃34;）VALUES（$ 1，$ 2，$ 3，$ 4，$ 5，$ 6，$ 7，$ 8，$ 9，$ 10，$ 11，$ 12）返回＆＃34; id＆＃34; [[＆＃34; id＆＃34;，4]，[＆＃34; purchase_id＆＃34;，4]，[＆＃34;数字＆＃34;，＆＃34; dd＆＃34;]，[＆＃ 34;术语＆＃34;，＆＃34; TT＆＃34;]，[＆＃34;货币＆＃34;，＆＃34; MM＆＃34;]，[＆＃34; total_due＆＃34;，＆＃34 ; 25000.0＆＃34;]，[＆＃34; current_balance＆＃34;，＆＃34; 12500.0＆＃34;]，[＆＃34; due_date＆＃34;，＆＃34; 2015-11-13＆＃34 ;]，[＆＃34;音符＆＃34;，＆＃34; Scenester Carles信任quinoa fixie将一只鸟放在它上面四个Loko下一级。生物柴油副Wayfarers可持续早午餐屠夫locavore。 Keytar副下级stumptown Rerry Richardson。＆＃34;]，[＆＃34;状态＆＃34;，＆＃34;取消＆＃34;]，[＆＃34; created_at＆＃34;，＆＃34; 2016- 07-19 14:51：00.619066＆＃34;]，[＆＃34; updated_at＆＃34;，＆＃34; 2016-07-19 14：51：00.619066＆＃34;]] [1m [36m（0.1ms）[0m [1mRELEASE SAVEPOINT active_record_1 [0m] 由InvoicesController处理#new为HTML [1m [35m购买负荷（0.3ms）[0m SELECT＆＃34;购买＆＃34;。* FROM＆＃34;购买＆＃34;购买＆＃34;。＆＃34; id＆＃34; = $ 1 LIMIT 1 [[＆＃34; id＆＃34;，nil]] 完成404未找到2ms（ActiveRecord：0.3ms）

我认为问题在于工厂关联已创建，但未保存。因此，当调用purchase.id时，它返回nil。

Answer 1

您正尝试在new操作中加载购买：

  def new
    @purchase = Purchase.find(params[:purchase])
    @invoice = Invoice.new(:purchase_id => params[:purchase])
  end

但是在你的测试中，你没有传递:purchase参数（应该是：我猜是buy_id）！

Answer 2

工厂中陈述的协会并未持续存在，导致Purchase.id的价值为零。

所以在回调之后尝试回调，特征之后，我放弃了使用FactoryGirl自动生成的关联。

最后，这是我必须做的事情：

我从工厂中删除了所有声明的关联，然后手动完成了规范中编辑的代码：

describe "GET new" do

    it "assigns a new invoice to @invoice" do
      invoice = FactoryGirl.create(:invoice)
      get :new, purchase: FactoryGirl.create(:purchase)
      expect(assigns(:invoice)).to_not eq(invoice)
    end

    it "renders the :new template" do
      get :new, purchase: FactoryGirl.create(:purchase)
      expect(response).to render_template :new
    end
  end

我希望这可以帮助遇到此问题的其他人。

RSpec无法找到＆＃39; id＆＃39; =

2 个答案: