的Rails 3.1.3和繼承的資源測試失敗

Question

我用Rails 3.1.3與繼承的資源1.3.0項目。

當我有像這樣的控制器：

class PostsController < InheritedResources::Base 
end 

我與RSpec的測試以下

describe "PUT update" do 
    describe "with invalid params" do 
     it "re-renders the 'edit' template" do 
     post = Post.create! valid_attributes 
     # Trigger the behavior that occurs when invalid params are submitted 
     Post.any_instance.stub(:save).and_return(false) 
     put :update, {:id => post.to_param, :post => {}}, valid_session 
     response.should render_template("edit") 
     end 
    end 
    end 

我收到以下錯誤：

3) PostsController PUT update with invalid params re-renders the 'edit' template 
    Failure/Error: response.should render_template("edit") 
     expecting <"edit"> but rendering with <""> 
    # ./spec/controllers/posts_controller_spec.rb:115:in `block (4 levels) in <top (required)>' 

這是爲什麼？我需要存儲其他東西嗎？

Answer 1

只需補充一點：

Post.any_instance.stub(:errors).and_return(['error']) 

右後：

Post.any_instance.stub(:save).and_return(false)