ruby-on-rails - 测试页面重定向的问题

Question

我一直在根据 Micheal Hartl 的教程学习 Ruby on Rails，遇到了一个非常有趣的问题，即如果我网站上的某些用户试图通过点击适当的网址。问题是，当我启动 rails 服务器并手动检查此操作时，它实际上将我重定向到根 url，但是，规范测试显示:

Failure/Error: specify { expect(response).to redirect_to(root_url) }
   Expected response to be a redirect to <http://www.example.com/> but was a redirect to <http://www.example.com/signin>.
   Expected "http://www.example.com/" to be === "http://www.example.com/signin".
 # ./spec/requests/authentication_pages_spec.rb:95:in `block (5 levels) in <top (required)>'

我在网上搜索以找到解决这个问题的方法，发现实际上有几个类似的问题，人们建议在 rb 中使用 no_capybara: true > 文件，但是，我已经使用了这个解决方案。本次测试的代码部分如下:

describe "as wrong user" do
  let(:user) { FactoryGirl.create(:user) }
  let(:wrong_user) { FactoryGirl.create(:user, email: "wrong@example.com") }
  before { sign_in user, no_capybara: true }

  describe "submitting a GET request to the Users#edit action" do
    before { get edit_user_path(wrong_user) }
    specify { expect(response.body).not_to match(full_title('Edit user')) }
    specify { expect(response).to redirect_to(root_url) }
  end

  describe "submitting a PATCH request to the Users#update action" do
    before { patch user_path(wrong_user) }
    specify { expect(response).to redirect_to(root_url) }
  end
end

Controller 代码也在这里:

class UsersController < ApplicationController
  before_action :signed_in_user, only: [:index, :edit, :update]
  before_action :correct_user,   only: [:edit, :update]

  def index
    @users = User.all
  end

  def show
    @user = User.find(params[:id])
  end

  def new
    @user = User.new
  end

  def create
    @user=User.new(user_params)
    if @user.save
      sign_in @user
      flash[:success] = "Welcome to the Sample App!"
      redirect_to @user
    else
      render 'new'
    end
  end

  def edit
  end

  def update
    if @user.update_attributes(user_params)
      flash[:success] = "Profile updated"
      redirect_to @user
    else
      render 'edit'
    end
  end

  private

    def user_params
      params.require(:user).permit(:name, :email, :password, :password_confirmation)
    end

    #Before filters

    def signed_in_user
      unless signed_in?
        store_location
        redirect_to signin_url, notice: "Please sign in."
      end
    end

    def correct_user
      @user = User.find(params[:id])
      redirect_to(root_url) unless current_user?(@user)
    end
  end

这里还有 Controller 的 session 助手代码:

def current_user?(user)
    user == current_user
end

def sign_out
    current_user.update_attribute(:remember_token, User.encrypt(User.new_remember_token))
    cookies.delete(:remember_token)
    self.current_user = nil
end

def redirect_back_or(default)
    redirect_to(session[:return_to] || default)
    session.delete(:return_to)
end

我会很高兴得到任何答案，并准备好提供任何细节!

Answer 1

用户的sign_in 似乎不起作用。请首先检查用户是否真的通过调试器/byebug 登录，或者只是编写一个小测试用例以使用 get edit_user_path(user) 进行验证(它不应重定向)。

您可能还想检查您的测试 sign_in 方法是否正确实现:Can't understand no_capybara option in michael hart'l tutorial test .这也是为什么必须在此处使用 no_capybara 选项的解释。