钢轨＆RSpec的：期待< “similar_movies”>但<[]>

Question

渲染这是的.spec文件：

describe MoviesController do 
    describe 'similar_movies' do 
     before :each do 
      @fake_results = [double('movie1'), double('movie2')] 
     end 
     it 'should call the model method that searches similar movies' do 
      expect(Movie).to receive(:similar_movies).with("1"). 
      and_return @fake_results 
      get :similar_movies, :id => 1 
     end 
     it 'should select the similar_movies template for rendering' do 
      Movie.stub(:similar_movies).and_return(@fake_results) 
      expect(response).to render_template(:similar_movies) 
      get :similar_movies, :id => 1 
     end 
     # it 'should make the similar_movies results avaliable to that template'do 

     # end 
    end 

这是控制器动作：

# METHOD TO FIND MOVIES WITH THE SAME DIRECTOR AS A GIVEN ONE 
    def similar_movies 
    @similar_movies_arr = Movie.similar_movies(params[:id]) 
    #render 'similar_movies' 
    end 

这是模型的方法：

def self.similar_movies(id) 
    movie = Movie.find(id) 
    director = movie['director'] 
    @similar_movies_arr = [] 
    @similar_movies = Movie.where(["director = ?", "#{director}"]) 
    @similar_movies.each do |m| 
     @similar_movies_arr << m 
    end 
    return @similar_movies_arr 
    end 

而这个模板：

-@similar_movies_arr.each do |movie| 
    %h1= movie.title 

这很简单，我的第一步与RSpec，但它失败了。请，有人可以帮助我了解这个错误

MoviesController similar_movies should select the similar_movies template for rendering 
Failure/Error: expect(response).to render_template(:similar_movies) 
    expecting <"similar_movies"> but rendering with <[]> 

Answer 1

的主要问题是，你需要期待渲染模板之前做搞定。

get :similar_movies, :id => 1 
    expect(response).to render_template(:similar_movies) 

您的测试仍然存在问题，因为您没有虚假的电影来搜索您可以访问导演字段。你可能想看看工厂创建一些测试电影。

第三种意见是，你可能希望从使用Movie.stub允许（电影）。为了收到的新格式切换......像预期更早只是用开关允许期望