snailseason

TypeError:wrong argument type nil (expected Regexp) Rails4 教程第 9 章

snailseason — Thu, 18 Sep 2014 22:38:57 +0800

hi 大家好，我正在跟进 rail4 的教程中文版的，卡在了第 9.2.2 章节，我在 stackoverflow 上也问了这个问题，可惜几个小时过去了没有人回复。请高手帮忙看看，非常感谢！ stackover 链接：http://stackoverflow.com/questions/25909464/why-am-i-receiving-typeerror-wrong-argument-type-nil-expected-regexp

github 代码： https://github.com/Snailseason2014/Sample

报错情况：

  1) Authentication authorization as wrong user submitting a GET request to the Users#edit action 
     Failure/Error: specify { expect(response.body).not_to match(full_title('Edit user')) }
     TypeError:
       wrong argument type nil (expected Regexp)
     # ./spec/requests/authentication_pages_spec.rb:59:in `block (5 levels) in <top (required)>'

Finished in 1.56 seconds
64 examples, 1 failure

app/helpers/sessions_helper.rb

module SessionsHelper
    def sign_in(user)
    remember_token = User.new_remember_token
    cookies.permanent[:remember_token] = remember_token
    user.update_attribute(:remember_token, User.encrypt(remember_token))
    self.current_user = user
    end
    def signed_in?
        !current_user.nil?
    end
        def current_user=(user)
            @current_user = user
        end
        def current_user
            remember_token = User.encrypt(cookies[:remember_token])
            @currend_user ||= User.find_by(remember_token: remember_token)
        end
        def current_user?(user)
            user == current_user
        end
        def sign_out
            self.current_user = nil
            cookies.delete(:remember_token)
end
end

spec/requests/authentication_pages_spec.rb

require 'spec_helper'
describe "Authentication" do
    subject { page }
    describe "signin page" do
    before { visit signin_path }
it { should have_content('Sign in') }
it { should have_title('Sign in') }
end
describe "signin" do
    before { visit signin_path }
    describe "with invalid information" do
        before { click_button "Sign in"}

        it { should have_title('Sign in') }
        it { should have_selector('div.alert.alert-error', text: 'Invalid') }

        describe "after visiting another page" do
            before { click_link "Home" }
            it { should_not have_selector('div.alert.alter-error') }
        end
    end
    describe "with valid information" do
        let(:user) { FactoryGirl.create(:user) }
        before { sign_in user }

        it { should have_title(user.name) }
        it { should have_link('Profile', href: user_path(user)) }
        it { should have_link('Settings',    href: edit_user_path(user)) }
        it { should have_link('Sign out', href: signout_path) }
        it { should_not have_link('Sign in', href: signin_path) }

    describe "followed by signout" do
        before { click_link "Sign out" }
        it { should have_link('Sign in') }
    end
end
end
    describe "authorization" do
        describe "for non-signed-in users" do
            let(:user) { FactoryGirl.create(:user) }
            describe "in the Users controller" do
                describe "visiting the edit page" do
                     before { visit edit_user_path(user) }
                     it { should have_title('Sign in') }
                    end
                    describe "submitting to the update action" do
                        before { patch user_path(user) }
                        specify { expect(response).to redirect_to(signin_path) }
                    end
                end
            end
            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
  end
end

user_ontroller.rb

class UsersController < ApplicationController
  before_action :signed_in_user, only: [:edit, :update]
  before_action :correct_user,   only: [:edit, :update]
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 motherfuckers"
      redirect_to @user
    else
      render 'new'
    end
  end
      def edit
        # @user = User.find(params[:id])
      end
      def update
    # @user = User.find(params[:id])
    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
    redirect_to signin_url, notice: "Please sign in." unless signed_in?
  end
def correct_user
  @user = User.find(params[:id])
  redirect_to(root_path) unless current_user?(@user)
end
end

在进行 rspec 测试时出现了问题

snailseason — Sat, 13 Sep 2014 23:07:33 +0800

hello 大家，我正在阅读 rails 4 的教程，在进行到第八章测试 authentication_pages 时，总是通不过，查了很多资料都不行，我也在 stackover 发了一篇帖子，帖子地址：http://stackoverflow.com/questions/25824363/testing-with-rspec-couldnt-get-over-it-any-one 一晚上了没人回。呵呵，所以回到咱们中国社区这来看看，请高手帮我看看。以下时细节：

Snailwalkers-MacBook-Pro:sample_app snailwalker$ bundle exec rspec spec/
.................................FF.........

Failures:

  1) AuthenticationPages signin with valid information 
     Failure/Error: it { should have_link('Profile', href: user_path(user)) }
       expected #has_link?("Profile", {:href=>"/users/82"}) to return true, got false
     # ./spec/requests/authentication_pages_spec.rb:31:in `block (4 levels) in <top (required)>'

  2) AuthenticationPages signin with valid information 
     Failure/Error: it { should have_link('Sign out', href: signout_path) }
       expected #has_link?("Sign out", {:href=>"/signout"}) to return true, got false
     # ./spec/requests/authentication_pages_spec.rb:32:in `block (4 levels) in <top (required)>'

Finished in 0.92605 seconds
44 examples, 2 failures

Failed examples:

rspec ./spec/requests/authentication_pages_spec.rb:31 # AuthenticationPages signin with valid information 
rspec ./spec/requests/authentication_pages_spec.rb:32 # AuthenticationPages signin with valid information 

Randomized with seed 61227

app/views/users/new.html.erb

<% provide(:title, 'Sign up') %>
<h1>Sign up</h1>

<div class="row">
  <div class="span6 offset3">
    <%= form_for(@user) do |f| %>
    <%= render 'shared/error_messages' %>

      <%= f.label :name %>
      <%= f.text_field :name %>

      <%= f.label :email %>
      <%= f.text_field :email %>

      <%= f.label :password %>
      <%= f.password_field :password %>

      <%= f.label :password_confirmation, "Confirmation" %>
      <%= f.password_field :password_confirmation %>

      <%= f.submit "Create my account", class: "btn btn-large btn-primary" %>
    <% end %>
  </div>
</div>

app/views/users/show.html.erb

<%= @user.name %>, <%= @user.email %>
<% provide(:title, @user.name) %>
<div class="row">
  <aside class="span4">
    <section>
<h1>
    <%= @user.name %>
    <%= gravatar_for @user %>
  </h1>
    </section>
  </aside>
</div>

app/views/sessions/new.html.erb

<% provide(:title, "Sign in") %>
<h1>Sign in</h1>
<div class="row">
    <div class="span6 offset3">
        <%= form_for(:session, url: sessions_path) do |f| %>
        <%= f.label :email %>
        <%= f.text_field :email %>

        <%= f.label :password %>
        <%= f.password_field :password %>
        <%= f.submit "Sign in", class: "btn btn-large btn-primary" %>
        <% end %>
        <p>New user? <%= link_to "Sign up now!", signup_path %></p>
    </div>
</div>

spec/requests/authentication_pages_spec.rb file :

require 'spec_helper'

describe "AuthenticationPages" do
    subject { page }
    describe "signin page" do
    before { visit signin_path }
it { should have_content('Sign in') }
it { should have_title('Sign in') }
end
describe "signin" do
    before { visit signin_path }
    describe "with invalid information" do
        before { click_button "Sign in"}

        it { should have_title('Sign in') }
        it { should have_selector('div.alert.alert-error', text: 'Invalid') }

        describe "after visiting another page" do
            before { click_link "Home" }
            it { should_not have_selector('div.alert.alter-error') }
        end
    end
    describe "with valid information" do
        let(:user) { FactoryGirl.create(:user) }
        before do
            fill_in "Email", with: user.email.upcase
            fill_in "Password", with: user.password
            click_button "Sign in"
        end
        it { should have_title(user.name) }
        it { should have_link('Profile', href: user_path(user)) }
        it { should have_link('Sign out', href: signout_path) }
        it { should_not have_link('Sign in', href: signin_path) }
    end
end
end

sessions_controllers.rb file.

class SessionsController < ApplicationController

  def new
  end

  def create
    user = User.find_by(email: params[:session][:email].downcase)
    if user && user.authenticate(params[:session][:password])
      redirect_to user
    else
      flash.now[:error] = 'Invalid email/password combination'
      render 'new'
    end
  end

  def destroy
  end
end

snailseason

TypeError:wrong argument type nil (expected Regexp) Rails4 教程第 9 章

在进行 rspec 测试时 出现了问题

在进行 rspec 测试时出现了问题