RSPEC在控制器和固定器上

Question

我对使用RSPEC的新手很陌生，并且正在尝试为控制器编写测试。我有这个控制器（我正在使用摩卡咖啡来固定）：

class CardsController < ApplicationController
  before_filter :require_user

  def show
    @cardset = current_user.cardsets.find_by_id(params[:cardset_id])

    if @cardset.nil?
      flash[:notice] = "That card doesn't exist. Try again."
      redirect_to(cardsets_path)
    else
      @card = @cardset.cards.find_by_id(params[:id])
    end
  end
end

我试图用这样的事情来测试这一动作：

describe CardsController, "for a logged in user" do
  before(:each) do
    @cardset = Factory(:cardset)
    profile = @cardset.profile
    controller.stub!(:current_user).and_return(profile)
  end

  context "and created card" do
    before(:each) do
      @card = Factory(:card)
    end

    context "with get to show" do
      before(:each) do
        get :show, :cardset_id => @cardset.id, :id => @card.id
      end

      context "with valid cardset" do
        before(:each) do
          Cardset.any_instance.stubs(:find).returns(@cardset)
        end

        it "should assign card" do
          assigns[:card].should_not be_nil
        end

        it "should assign cardset" do
          assigns[:cardset].should_not be_nil
        end

      end
    end
  end
end

“应该分配卡片”测试通过，但我无法弄清楚如何正确固执 @card = @cardset.cards.find_by_id(params[:id]) 对于“应该分配卡”测试。测试此操作的最佳方法是什么，或者如果我在正确的轨道上，我将如何正确地拨打模型呼叫？

Answer 1

我最终寻找这些的存根

Cardset.stubs(:find_by_id).returns(@cardset)
@cardset.cards.stubs(:find_by_id).returns(@card)

Answer 2

好的，删除了以前的答案。

首先：你正在固执 find 不是 find_by_id. 。尽管您不需要使用find_by_id，因为这是查找的默认值。所以使用 find

第二： before :each 订购将打电话给 get :show 在你存根之前 Cardset

第三：检查您的test.log，并确保您没有重定向。您的 require_user 动作可能会导致重定向 current_user 甚至设置。

class CardsController < ApplicationController
  ...
     @card = @cardset.cards.find(params[:id])
  ...
end

describe CardsController, "for a logged in user" do
  before(:each) do
    @cardset = Factory(:cardset)
    profile = @cardset.profile
    controller.stub!(:current_user).and_return(profile)
  end

  context "and created card" do
    before(:each) do
      @card = Factory(:card)
    end

    context "with get to show" do

      context "with valid cardset" do
        before(:each) do
          Cardset.any_instance.stubs(:find).returns(@cardset)
          get :show, :cardset_id => @cardset.id, :id => @card.id
        end

        it "should assign card" do
          assigns[:card].should_not be_nil
        end

        it "should assign cardset" do
          assigns[:cardset].should_not be_nil
        end

      end
    end
  end
end