在控制器和stubbing上的RSpec

Question

我很新使用rspec，并且正在尝试为我的控制器编写我的测试。我有这个控制器（我用摩卡的磕碰）：

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 

我试图测试像这样的东西这个动作：

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 

的“应指派cardset”测试通过，但我无法弄清楚如何正确存根这条线@card = @cardset.cards.find_by_id(params[:id])为“应分配卡”测试。测试此操作的最佳方式是什么，或者如果我在正确的轨道上，我将如何正确存根模型调用？

Answer 1

，我结束了寻找这些地方

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

Answer 2

好吧，删除以前的答案是错的。

第一：你是沾了find而不是find_by_id。尽管您不需要使用find_by_id，因为这是find的默认值。因此，使用find

第二：before :each订货会调用之前的get :show你存根Cardset

三：检查您的test.log中，并确保你没有得到重定向。在current_user被设置之前，您的require_user操作可能会导致重定向。

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