使用 RSpec 测试 Rails 控制器——如何测试：current_account.projects

Question

我正在使用 Rspec 和 Rails 3 进行测试。我已经测试了我的模型和助手，但我不知道如何开始测试控制器。我的控制器操作中的几乎所有数据都是使用以下示例提取的：

@services = current_account.services

@projects = current_person.projects

@projects = current_account.projects.active 
# this is really @projects = current_person.account.projects.active)

我似乎找不到任何关于如何测试以这种方式提取的数据的示例。我发现的所有示例都不限于帐户或个人。谁能指点我一篇关于如何模拟或存根这种安排的文章？这是否表明整个方法不正确？下面，我包含了一个完整的示例控制器。

任何帮助将不胜感激。

谢谢， 大卫

class ServicesController < ApplicationController
  # Run authorizations
  filter_resource_access

  # Respond to ...
  respond_to :html, :xml, :json
  respond_to :js,   :only => [:new, :create, :edit, :update, :destroy]

  # GET /services
  # GET /services.xml
  def index
    @services = current_account.services.order("name").paginate(:page => params[:page])

    respond_with(@services)
  end

  # GET /services/1
  # GET /services/1.xml
  def show
    @service = current_account.services.find(params[:id])

    respond_with(@service)
  end

  # GET /services/new
  # GET /services/new.xml
  def new
    @service = current_account.services.new

    respond_with(@service)
  end

  # GET /services/1/edit
  def edit
    @service = current_account.services.find(params[:id])

    respond_with(@service)
  end

  # POST /services
  # POST /services.xml
  def create
    @service = current_account.services.new(params[:service])

    if @service.save
      # flash[:notice] = 'A service was successfully created.'
    end

    respond_with(@service, :location => services_url)
  end

  # PUT /services/1
  # PUT /services/1.xml
  def update
    @service = current_account.services.find(params[:id])

    if @service.update_attributes(params[:service])
      # flash[:notice] = 'The service was successfully updated.'
    end

    respond_with(@service, :location => services_url)
  end

  # DELETE /services/1
  # DELETE /services/1.xml
  def destroy
    @service = current_account.services.find(params[:id])

    if @service.destroy
      flash[:notice]  = "The service was successfully deleted."
    else
      flash[:warning] = @service.errors.full_messages.inject("") { |acc, message| acc += message  }
    end

    respond_with(@service)
  end
end

–––––– 更新

感谢 Xaid 的解决方案，我能够得到解决方案：

  context "logged_in" do
    before(:each) do
      @current_account = Factory.create(:account)
      controller.stub!(:current_account).and_return(@current_account)

      @services = FactoryGirl.create_list(:service, 10, :account => @current_account)
      @services << @current_account.services.first
      @current_account.services.stub!(:all).and_return(@services)
    end


    # INDEX
    describe "GET services" do
      before(:each) do
        get :index
      end

      it "should set @services when accessing GET /index" do
        assigns[:services].should == @services
      end

      it "should respond with success" do
        response.should be_success
      end
    end
  end

Answer 1

你不能用这样的东西来测试你的“索引”操作

describe "GET 'index'" do
  before(:each) do
    @user = FactoryGirl.create(:user)
    controller.stub!(:current_user).and_return(@user)
    @services = FactoryGirl.create_list(:service, 10, :user => @user)
    @user.services.stub!(:all).and_return(@services)
  end

  it "should return a list of services" do
    get :index
    assigns(:services).should == @services
  end
end

如果我正确理解了您的问题，您应该能够存根 current_user.services（或项目）并使其返回一些已知值（在我的示例中由 FactoryGirl 生成）并对照存储在您的操作中的值进行检查（例如，您的“索引”操作中的@services）。