RSpec。如何檢查對象方法是否被調用？

Question

我正在寫控制器規格：

it 'should call the method that performs the movies search' do 
    movie = Movie.new 
    movie.should_receive(:search_similar) 
    get :find_similar, {:id => '1'} 
end 

和我的控制器看起來像：

Failures: 
1) MoviesController searching by director name should call the method that performs the movies search 
Failure/Error: movie.should_receive(:search_similar) 
    (#<Movie:0xaa2a454>).search_similar(any args) 
     expected: 1 time 
     received: 0 times 
# ./spec/controllers/movies_controller_spec.rb:33:in `block (3 levels) in <top (required)>' 

我看來：運行RSpec的我得到以下後

def find_similar 
@movies = Movie.find(params[:id]).search_similar 
end 

理解和接受，因爲在我的控制器代碼中，我調用了Class（Movie）方法，並且我沒有看到任何方式將「find_similar」與對象創建的連接C。

所以問題是 - >什麼方法來檢查方法是否在對象上調用，在spec中創建？

Answer 1

it 'should call the method that performs the movies search' do 
    movie = Movie.new 
    movie.should_receive(:search_similar) 
    Movie.should_receive(:find).and_return(movie) 
    get :find_similar, {:id => '1'} 
end 

_{對於什麼是值得的，我完全反對這些存根，所有的東西測試，他們只是使代碼更改更難，實際上只是測試代碼結構。}

Answer 2

起初，你的電影還沒有持久。

在第二，而不是事實，這將有ID 1

那麼試試這個

it 'should call the method that performs the movies search' do 
    movie = Movie.create 
    movie.should_receive(:search_similar) 
    get :find_similar, {:id => movie.id} 
end