Ruby on rails Rspec控制器测试：未定义方法'；订单路径'；

编写一些控制器测试，使用

render\u view

检查部分渲染

describe PromoCodeController do
  render_views

  describe "GET 'show" do
... a bunch of tests

it "renders 'used' partial when promo code has already been used" do
  @promo_code = create(:promo_code)
  @user.stub(:promo_used?).and_return(true)
  get 'show', :slug => @promo_code.slug
  expect(response).to render_template(:partial => 'promo_code/_used')
end

在所使用的

部分

<article>
  <p><%= @promo.description.html_safe %></p>
  <p>Sorry, it appears this promo code has already been used. Please try again or contact us directly.</p>
  <%= link_to "View Order", orders_path(@order), class: "box-button-black", data: { bypass: true } %>
</article>

因此，分部正在查找
@订单
。我试着用controller.instance\u variable\u set（：@order，create（：order））

设置它，但在部分设置中它返回为

nil

---

通过在部分视图中添加

的快速测试通过绿色。现在的问题是如何将var

@order

传递到所使用的

\u部分中。
尝试添加规范的类型

我相信动作控制器URL帮助器包含在规范类型中

尝试：

可以根据文件位置设置等级库类型，而不是手动设置等级库类型

# spec_helper.rb

RSpec.configure do |config|
  config.infer_spec_type_from_file_location!
end 

describe 'GET SHOW' do
  run this in a before block 
  before do 
    controller.instance_variable_set(:@order, create(:order)) 
  end 

  it "renders 'used' partial when promo code has already been used" do
    promo_code = create(:promo_code)
    @user.stub(:promo_used?).and_return(true)
    # check if @order variable is assigned in the controller 
    expect(assigns(:order).to eq order 
    get 'show', slug: promo_code.slug
    expect(response).to render_template(:partial => 'promo_code/_used')
  end
end

首先，我需要将其更改为
order\u path
，
orders\u path
是错误的。Doh

然后我需要存根一些方法来绕过错误

ActionView::Template::Error:
       No route matches {:controller=>"order", :action=>"show", :id=>nil}

最后，将方法
assign_promo_to_users_order
中的stubing命令分配给当前_用户完成了以下操作：

it "renders 'used' partial when promo code has already been used" do
  @promo_code = create(:promo_code)
  @user.stub(:promo_used?).and_return(true)
  User.any_instance.stub(:assign_promo_to_users_order).and_return(create(:order, :complete))
  get 'show', :slug => @promo_code.slug
  expect(response).to render_template(:partial => 'promo_code/_used')
end 

您是否将orders资源添加到config/routes.rb？它应该是order_路径吗？谢谢David。。。我仍然得到
ActionView:：Template:：Error:没有路由匹配{:controller=>“order”，：action=>“show”，：id=>nil}
。仍然没有将@order交给partialRyan您可以在PromoCodesController中复制并粘贴您的show方法吗？
# spec_helper.rb

RSpec.configure do |config|
  config.infer_spec_type_from_file_location!
end 

describe 'GET SHOW' do
  run this in a before block 
  before do 
    controller.instance_variable_set(:@order, create(:order)) 
  end 

  it "renders 'used' partial when promo code has already been used" do
    promo_code = create(:promo_code)
    @user.stub(:promo_used?).and_return(true)
    # check if @order variable is assigned in the controller 
    expect(assigns(:order).to eq order 
    get 'show', slug: promo_code.slug
    expect(response).to render_template(:partial => 'promo_code/_used')
  end
end

ActionView::Template::Error:
       No route matches {:controller=>"order", :action=>"show", :id=>nil}

it "renders 'used' partial when promo code has already been used" do
  @promo_code = create(:promo_code)
  @user.stub(:promo_used?).and_return(true)
  User.any_instance.stub(:assign_promo_to_users_order).and_return(create(:order, :complete))
  get 'show', :slug => @promo_code.slug
  expect(response).to render_template(:partial => 'promo_code/_used')
end