ruby-on-rails - 无法使用 rspec Controller POST 创建操作(设计和 cancan)进行测试

Question

我很难让 Controller 通过 rspec 测试。我想测试 POST 创建操作是否有效。我正在使用 rails (3.0.3)、cancan (1.4.1)、devise (1.1.5)、rspec (2.3.0)

模型太简单了

class Account < ActiveRecord::Base
  attr_accessible :name 
end

Controller 也是标准配置(直接脱离脚手架)

class AccountsController < ApplicationController
  before_filter :authenticate_user!, :except => [:show, :index]
  load_and_authorize_resource
  ...

  def create
    @account = Account.new(params[:account])

    respond_to do |format|
      if @account.save
        format.html { redirect_to(@account, :notice => 'Account was successfully created.') }
        format.xml  { render :xml => @account, :status => :created, :location => @account }
      else
        format.html { render :action => "new" }
        format.xml  { render :xml => @account.errors, :status => :unprocessable_entity }
      end
    end
  end

我想通过的 rspec 测试是(请原谅标题，也许不是最合适的)

 it "should call create on account when POST create is called" do
   @user = Factory.create(:user)
   @user.admin = true
   @user.save

   sign_in @user #this is an admin
   post :create, :account => {"name" => "Jimmy Johnes"}
   response.should be_success
   sign_out @user

 end

然而我得到的只是

AccountsController get index should call create on account when POST create is called
 Failure/Error: response.should be_success
 expected success? to return true, got false
 # ./spec/controllers/accounts_controller_spec.rb:46

可以测试其他操作并通过(即获取新)

这是 GET new 的测试

it "should allow logged in admin to call new on account controller" do
  @user = Factory.create(:user)
  @user.admin=true
  @user.save

  sign_in @user #this is an admin
  get :new
  response.should be_success
  sign_out @user
end

为了完成这里是能力文件

class Ability
  include CanCan::Ability

  def initialize(user)
    user ||= User.new
    if user.admin?
      can :manage, :all
    else
      can :read, :all
    end
  end
end

有任何想法吗？我的猜测是我使用了错误的 rspec 期望，因为代码确实有效(只是测试没有按预期执行!)

Answer 1

response.should be_success如果响应代码在 200-299 范围内，则返回 true。但是创建操作重定向，因此响应代码设置为 302，因此失败。

您可以使用 response.should redirect_to 来测试这一点。 .检查标准 RSpec Controller 生成器的输出作为示例，它可能如下所示:

  it "redirects to the created account" do
    Account.stub(:new) { mock_account(:save => true) }
    post :create, :account => {}
    response.should redirect_to(account_url(mock_account))
  end