如何在Rails 2.3中测试多态控制器? [英] How to test polymorphic controllers in Rails 2.3?

问题描述

亲爱的同花异草，

我将尽力说明我的问题的实质.预先感谢您的耐心等候.

I will try to give the essence of my issue. Thanks in advance for your patience.

我的多态控制器(Appointments)由两个Views访问，第一个属于Admin::Doctor命名空间，第二个属于Patient命名空间.

My Polymorphic Controller (Appointments) is accessed by two Views, the first belongs to Admin::Doctor namespace and the second one to Patient namespace.

routes.rb的相关部分:

map.resources :patient do |patients|
  patients.resources :appointments
end

map.namespace(:admin) do |admin|
  admin.resources :doctor do |doctors|
    doctors.resources :appointments
  end
end

所以，我现在可以得到:

So, I can now get:

patients/:patient_id/appointments
admin/doctors/:doctor_id/appointments

...以及实际路线:

...and the actual routes:

rake routes | grep appointment

 new_patient_appointments GET    /patients/:patient_id/appointments/new(.:format)    {:controller=>"appointments", :action=>"new"}
edit_patient_appointments GET    /patients/:patient_id/appointments/edit(.:format)  {:controller=>"appointments", :action=>"edit"}
     patient_appointments GET    /patients/:patient_id/appointments(.:format)            {:controller=>"appointments", :action=>"show"}
                          PUT    /patients/:patient_id/appointments(.:format)            {:controller=>"appointments", :action=>"update"}
                          DELETE /patients/:patient_id/appointments(.:format)   {:controller=>"appointments", :action=>"destroy"}
                          POST   /patients/:patient_id/appointments(.:format)   {:controller=>"appointments", :action=>"create"}

 new_admin_doctor_appointments GET    /admin/doctors/:doctor_id/appointments/new(.:format) {:controller=>"admin/appointments", :action=>"new"}
edit_admin_doctor_appointments GET    /admin/doctors/:doctor_id/appointments/edit(.:format){:controller=>"admin/appointments", :action=>"edit"}
     admin_doctor_appointments GET    /admin/doctors/:doctor_id/appointments(.:format)     {:controller=>"admin/appointments", :action=>"show"}
                               PUT    /admin/doctors/:doctor_id/appointments(.:format)    {:controller=>"admin/appointments", :action=>"update"}
                               DELETE /admin/doctors/:doctor_id/appointments(.:format)   {:controller=>"admin/appointments", :action=>"destroy"}
                               POST   /admin/doctors/:doctor_id/appointments(.:format)   {:controller=>"admin/appointments", :action=>"create"}

我的模特:

class Patient
  has_many :appointments, :as => :attendee
end

class Doctor
  has_many :appointments, :as => :attendee
end

class Appointment
  belongs_to :attendee, :polymorphic => true
end

我的控制器:

Controllers/Admin/doctors_controller.rb

class Admin::DoctorsController < AuthorisedController
end

Controllers/appointments_controller.rb

class AppointmentsController < ApplicationController
end

Controllers/patients_controller.rb

class PatientsController < ApplicationController
end

在我的test/functional/appointments_controller_test.rb上，我正在测试patients，没有错误，但是在测试doctors时，我得到了ActionController::RoutingError:

On my test/functional/appointments_controller_test.rb, I am testing for patients without errors but when testing for doctors, I get an ActionController::RoutingError:

4) Error:
test_should_show_doctor_appointment(AppointmentsControllerTest):
ActionController::RoutingError: No route matches {:controller=>"appointments", :id=>"281110143", :action=>"show", :doctor_id=>2}
test/functional/appointments_controller_test.rb:55:in `test_should_show_doctor_appointment'

测试中的相关部分:

test/functional/appointments_controller_test.rb

require 'test_helper'

class AppointmentsControllerTest < ActionController::TestCase

  fixtures :patients, :appointments, :doctors, :users
  # The following passes:

  def setup
    login_as :admin
  end

  test "should show patient appointment" do
    get :show, :id => patients(:one).to_param, :appointment_id => appointments(:app_one).id
    assert_response :success
  end

  # The following fails, giving the error mentioned above:

  test "should show doctor appointment" do
    get :show, :id => doctors(:one).to_param, :appointment_id => appointments(:app_one).id
    assert_response :success
  end

end

正如@Ryan所指出的那样，该测试位于基本名称空间下，因此，下一步，我在Admin下创建了一个测试.

As @Ryan pointed out, the test is under the base namespace, so as a next step, I created a test under Admin.

test/functional/admin/appointments_controller_test.rb

class Admin::AppointmentsControllerTest < ActionController::TestCase

  fixtures :patients, :appointments, :doctors, :users
  # The following passes:

  def setup
    login_as :admin
  end

  test "should show doctor appointment" do
    get :show, :id => doctors(:one).to_param, :appointment_id => appointments(:app_one).id
    assert_response :success
  end

end

...现在我收到此错误:

...and now I get this error:

 1) Error:
 test_should_show_doctor_appointment(Admin::AppointmentsControllerTest):
 RuntimeError: @controller is nil: make sure you set it in your test's setup method.
 test/functional/admin/appointments_controller_test.rb:13:in `test_should_show_doctor_appointment' 

这时，我在setup方法下添加了@controller = AppointmentsController.new，只是变得非常熟悉:

At this point, I added @controller = AppointmentsController.new under the setup method, only to get the very familiar:

1) Error:
test_should_show_doctor_appointments(Admin::AppointmentsControllerTest):
ActionController::RoutingError: No route matches {:action=>"show", :controller=>"appointments", :doctor_id=>2, :id=>"281110143"}
test/functional/admin/appointments_controller_test.rb:14:in `test_should_show_doctor_appointments'

在我看来，这就像一个恶性循环.

It seems to me like a vicious circle.

编辑结束

因此，由于测试找不到控制器，因为其路由指向admin/appointments

So, since the test can not find the controller because its route points at admin/appointments

• 为什么我能渲染/admin/doctors/1/appointments，因为appointments_controller.rb既不在Admin文件夹也不在Admin::命名空间下(而是路由指向该目录)和
• 针对这种情况编写功能测试的最佳策略是什么?

• why am I able to render /admin/doctors/1/appointments since the appointments_controller.rb does not live neither under Admin folder nor Admin:: namespace (but the route points there) and
• what is the best strategy to write the functional tests for that case?

提前谢谢！

pR

推荐答案

此错误:

ActionController::RoutingError: No route matches {:controller=>"appointments", :id=>"281110143", :action=>"show", :doctor_id=>2}

表明您正在向名为AppointmentsController的控制器发出请求，但要根据您的路线进行判断:

Shows that you're making a request to a controller called AppointmentsController, but judging by your routes:

new_admin_doctor_appointments GET    /admin/doctors/:doctor_id/appointments/new(.:format) {:controller=>"admin/appointments", :action=>"new"}
edit_admin_doctor_appointments GET    /admin/doctors/:doctor_id/appointments/edit(.:format){:controller=>"admin/appointments", :action=>"edit"}
     admin_doctor_appointments GET    /admin/doctors/:doctor_id/appointments(.:format)     {:controller=>"admin/appointments", :action=>"show"}
                               PUT    /admin/doctors/:doctor_id/appointments(.:format)    {:controller=>"admin/appointments", :action=>"update"}
                               DELETE /admin/doctors/:doctor_id/appointments(.:format)   {:controller=>"admin/appointments", :action=>"destroy"}
                               POST   /admin/doctors/:doctor_id/appointments(.:format)   {:controller=>"admin/appointments", :action=>"create"}

该路由仅在admin名称空间(即Admin::AppointmentsController)内可用.

That route is only available within the admin namespace, i.e. Admin::AppointmentsController.

我敢打赌，您正在执行类似describe AppointmentsController而不是describe Admin::AppointmentsController的操作.我不确定，因为您没有包括测试本身的关键部分.

I'm going to bet that you're doing something like describe AppointmentsController rather than describe Admin::AppointmentsController. I don't know for certain because you've not included the critical part that is the test itself.

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