Question

我正在测试我的Rails 3.2应用程序，当我尝试测试控制器时遇到错误。

这是我的控制器

class WidgetsController < ApplicationController
  #skip_before_filter :authenticate, :only => [:new, :create]
  before_filter :authenticate, :except=>[:disabled]

  def index
    @widgets = current_user.widgets.all
    respond_to do |format|
      format.html # index.html.erb
      format.json { render json: @widgets }
    end
  end

  def new
    @widget = Widget.new
  end

  def create
    @widget = Widget.new(params[:widget])
    @widget.user_id = current_user.id
    @widget.score = 0
    @widget.total_score = 0
    @widget.click_number = 0
    @widget.average = 0
    respond_to do |format|
      if @widget.save
        format.html { redirect_to edit_widget_path(@widget), notice: 'Widget was successfully created.' }
        format.json { render json: @widget, status: :created, location: @widget }
      else
        format.html { render action: "new" }
        format.json { render json: @widget.errors, status: :unprocessable_entity }
        raise 'there is an error when creation'
      end
    end
  end

  def show
    @widget = Widget.find_by_uuid(params[:uuid])
  end

  def edit
    @widget = Widget.find_by_uuid(params[:uuid])
  end

  def update
    @widget = Widget.find_by_uuid(params[:uuid])
    respond_to do |format|
      if @widget.update_attributes(params[:widget])
        format.html { redirect_to edit_widget_path(@widget), notice: 'Widget was successfully updated.' }
        format.json { render json: @widget, status: :created, location: @widget }
      else
        format.html { render action: "edit" }
        format.json { render json: @widget.errors, status: :unprocessable_entity }
      end
    end
  end

  def destroy
    @widget = Widget.find_by_uuid(params[:uuid]).destroy
    redirect_to widgets_path
  end

  #generate widget
  def generate
    respond_to do |format|
      format.js {}
    end
  rescue
    #TODO add widget not found page
    render :template => 'application/widget_not_found', :status => :not_found
  end



  protected

  def authenticate
    unless current_user
      redirect_to root_url
    end
  end

end

这是我的控制器规范

require 'spec_helper'

describe WidgetsController do
  login_admin

  describe "User" do
    it "should have a current_user" do
      subject.current_user.should_not be_nil
    end
  end

  def mock_widget(stubs={})
    @mock_widget ||= mock_model(Widget, stubs).as_null_object
  end

  describe "GET index" do
    it "assigns all widgets as @widgets" do
      Widget.stub(:all) { [mock_widget] }
      get :index
      assigns(:widgets).should eq([mock_widget])
    end
  end

end

我只想看到我可以在索引页面上获取数据。但是，当我运行$rspec spec/controllers/widgets_controller_spec.rb

时，我在命令行上看到了此错误

.F

Failures:

  1) WidgetsController GET index assigns all widgets as @widgets
     Failure/Error: assigns(:widgets).should eq([mock_widget])

       expected: [#<Widget:0x3ffb0c3c9d70 @name="Widget_1001">]
            got: []

       (compared using ==)

       Diff:
       @@ -1,2 +1,2 @@
       -[#<Widget:0x3ffb0c3c9d70 @name="Widget_1001">]
       +[]
     # ./spec/controllers/widgets_controller_spec.rb:20:in `block (3 levels) in <top (required)>'

Finished in 0.11937 seconds
2 examples, 1 failure

Failed examples:

rspec ./spec/controllers/widgets_controller_spec.rb:17 # WidgetsController GET index assigns all widgets as @widgets

我做了这个教程http://www.codethinked.com/rails-3-baby-steps-part-4，我没有遇到任何问题。我该如何解决？这个错误意味着什么？

Answer 1

我猜它与scoping控制器中current_user返回的小部件集有关。在控制器中，您在一组窗口小部件对象（Widget类的实例）上调用all方法，并且在测试中，您正在对Widget类的all方法进行存根。您可以通过更改控制器方法来简单地调用Widget.all来测试此理论。我知道这不是你想要它做的，但它会证实这是问题所在。

Rails 3 RSpec控制器测试失败/错误：

1 个答案: