Question

我正在学习Rails并且对测试非常新，但到目前为止，我已经设法构建了一些错误最少的东西。但是，我遇到的问题是我的测试是抱怨无法找到的方法，也没有路由匹配。

据我所知，应该经常根据Hartl's - Railstutorial 3.3运行测试。许多StackO线程和在线文章似乎与利用我不使用的测试套件有关，如RSpec等...因此测试配置令人困惑。我的测试套件设置与Hartl's - Railstutorial 3.3类似，下面是为测试而加载的宝石。

gem 'better_errors', '~> 2.1.1'
gem 'binding_of_caller'
gem 'minitest-reporters', '1.0.5'
gem 'mini_backtrace',     '0.1.3'
gem 'guard-minitest',     '2.3.1'
gem 'ruby-prof'

NoMethodError：未定义的方法

Error: (_I have two error similar errors to below_)
ServicesControllerTest#test_should_get_index:
NoMethodError: undefined method 'services' for nil:NilClass
    app/controllers/services_controller.rb:6:in 'index'
    test/controllers/services_controller_test.rb:9:in 'block in <class:ServicesControllerTest>"

服务控制器

def index
  @services = current_tech.services
end

services_controller_test.rb

require 'test_helper'

class ServicesControllerTest < ActionController::TestCase
  setup do
    @service = services(:one)
  end

  test "should get index" do
    get :index
    assert_response :success
    assert_not_nil assigns(:services)
  end
end

我认为我收到此错误的原因是Devise。如果我在下面设置以下索引操作，测试将通过。

def index
  @services = Tech.first.services
end

如何更正此问题以便此测试通过？

ActionController :: UrlGenerationError：没有路由匹配{：action =＆gt;“show”，：controller =＆gt;“tech”}

Error:
CarsControllerTest#test_should_get_show:
ActionController::UrlGenerationError: No route matches {:action=>"show", :controller=>"cars"}
    test/controllers/cars_controller_test.rb:5:in `block in <class:CarsControllerTest>

与汽车相关的耙路

tech_cars POST - /techs/:tech_id/cars(.:format) - cars#create
car GET - /cars/:id(.:format) - cars#show

路线

Rails.application.routes.draw do  

  devise_for :customers, controllers: { sessions: 'customers/sessions' }
  devise_for :techs, controllers: { sessions: 'techs/sessions' } 

  resources :techs, :only => [:index, :show], shallow: true do
    resources :cars, only: [:show, :create]
  end

  resources :services, :garages

  root "home#index"

end

cars_controller.rb

class CarsController < ApplicationController
  before_action :set_car

  def show
    @garage = Garage.find(params[:id])
    @tech = @tech.service.car.id
  end

  def create
    @garage = Garage.create(tech_first_name: @car.service.tech.first_name,
                                  customer_id: current_customer.id,
                                  customer_street_address: current_customer.street_address,
                                  customer_city: current_customer.city,
                                  customer_state: current_customer.state,
                                  customer_zip_code: current_customer.zip_cod)

    if @garage.save
      redirect_to techs_path, notice:  "Working" 
    else
      redirect_to techs_path, notice:  "Uh oh, flat tire" 
    end
  end

  private

  def set_car
    @car = Car.find(params[:id])
  end

  def car_params
    params.permit(:service_name, :garage_photo)
  end
end

cars_controller_test.rb

require 'test_helper'

class CarControllerTest < ActionController::TestCase
  test "should get show" do
    get :show
    assert_response :success
  end
end

cars.html.erb （仅限页面上的链接）

<%= button_to 'View Garage', tech_cars_path(tech_id: @car.service.tech.id, id: @car) %>
<%= link_to 'Back to tech', tech_path(@car.service.tech.id) %>

正如您可能收集的那样，我正在Garage控制器中构建Car而不是Cars对象。这会是测试的问题吗？我的应用程序运行正常。另外，我也很难尝试将car_params强参数与实例变量相关联，但那是另一个StackO帖子。

*测试/ test_helper.rb中

ENV['RAILS_ENV'] ||= 'test'
require File.expand_path('../../config/environment', __FILE__)
require 'rails/test_help'
require "minitest/reporters"

Minitest::Reporters.use!

class ActiveSupport::TestCase
  # Setup all fixtures in test/fixtures/*.yml for all tests in alphabetical order.
  fixtures :all

  # Add more helper methods to be used by all tests here...
end

class ActionController::TestCase
  include Devise::TestHelpers
end

是否有我遗漏或未正确配置的内容？

请知道我的应用程序似乎工作正常，我只是想抑制这些测试错误。

请告知如何通过这些测试错误。

由于

Answer 1

第一期：您的感觉是正确的。 Devise附带Devise::TestHelpers，您已将ActionController::TestCase混合到测试助手文件中。它提供的方法之一是sign_in，它允许您在测试过程中欺骗已登录的用户。假设您有一个名为Tech的模型并且您遵循标准的Rails约定，那么您需要添加以下内容：

sign_in techs(:some_tech)

在致电setup之前，

到您的get :index阻止或直接进入您的测试机构。这将确保current_tech返回非零的内容并删除直接的NoMethodError。

第二个问题：您的:show操作希望在网址中收到已知Car的ID。用以下代码替换当前的控制器调用：

require 'test_helper'

class CarControllerTest < ActionController::TestCase
  setup do
    @car = cars(:some_car)
  end

  test "should get show" do
    get :show, id: @car.id
    assert_response :success
  end
end

带有Minitest Reporter的Rails测试 - NoMethodError：未定义的方法+ ActionController :: UrlGenerationError：没有路由匹配

1 个答案: