Question

我正在努力解决第9章开头的错误。当我运行测试时，遇到以下失败状态：

..F

Failure:
UsersLoginTest#test_login_with_valid_information_followed_by_logout [C:/webf5201/alcottgriffinj/lab4/test/integration/users_login_test.rb:27]:
Expected exactly 0 elements matching "a[href="/login"]", found 1..
Expected: 0
  Actual: 1

我已经看到堆栈上发布的其他问题。但是，我提供的解决方案已经存在于我的代码中。一旦我们开始在第9章中对user.rb文件进行更改，我就开始遇到错误。但是，我自己无法看到导致错误的原因..

user.rb

class User < ApplicationRecord
  attr_accessor :remember_token
  before_save { self.email = email.downcase }
  validates :name,  presence: true, length: { maximum: 50 }
  VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i
  validates :email, presence: true, length: { maximum: 255 },
                    format: { with: VALID_EMAIL_REGEX },
                    uniqueness: { case_sensitive: false }
  has_secure_password
  validates :password, presence: true, length: { minimum: 6 }

  # Returns the hash digest of the given string.
  def User.digest(string)
    cost = ActiveModel::SecurePassword.min_cost ? BCrypt::Engine::MIN_COST :
                                                  BCrypt::Engine.cost
    BCrypt::Password.create(string, cost: cost)
  end

  # Returns a random token.
  def User.new_token
    SecureRandom.urlsafe_base64
  end

  # Remembers a user in the database for use in persistent sessions.
  def remember
    self.remember_token = User.new_token
    update_attribute(:remember_digest, User.digest(remember_token))
  end

  # Returns true if the given token matches the digest.
  def authenticated?(remember_token)
    BCrypt::Password.new(remember_digest).is_password?(remember_token)
  end

  # Forgets a user.
  def forget
    update_attribute(:remember_digest, nil)
  end
end

user_login_test.rb

require 'test_helper'

class UsersLoginTest < ActionDispatch::IntegrationTest

    def setup
        @user = users(:michael)
    end 

    test "login with invalid informatiion" do
        get login_path
        assert_template 'sessions/new'
        post login_path, params: {session: {email: "", password: ""}}
        assert_template 'sessions/new'
        assert_not flash.empty?
        get root_path
        assert flash.empty?
    end

    test "login with valid information followed by logout" do
        get login_path
        post login_path, params: { session: { email:    @user.email,
                                              password: 'password' } }
        assert is_logged_in?
        assert_redirected_to @user
        follow_redirect!
        assert_template 'users/show'
        assert_select "a[href=?]", login_path, count: 0
        assert_select "a[href=?]", logout_path
        assert_select "a[href=?]", user_path(@user)
        delete logout_path
        assert_not is_logged_in?
        assert_redirected_to root_url
        follow_redirect!
        assert_select "a[href=?]", login_path
        assert_select "a[href=?]", logout_path,         count: 0
        assert_select "a[href=?]", user_path(@user),    count: 0
     end
end

_header.html.erb

<header class="navbar navbar-fixed-top navbar-inverse">
  <div class="container">
    <%= link_to "sample app", root_path, id: "logo" %>
    <nav>
      <ul class="nav navbar-nav navbar-right">
        <li><%= link_to "Home", root_path %></li>
        <li><%= link_to "Help", help_path %></li>
        <% if logged_in? %>
          <li><%= link_to "Users", '#' %></li>
          <li class="dropdown">
            <a href="#" class="dropdown-toggle" data-toggle="dropdown">
              Account <b class="caret"></b>
            </a>
            <ul class="dropdown-menu">
              <li><%= link_to "Profile", current_user %></li>
              <li><%= link_to "Settings", '#' %></li>
              <li class="divider"></li>
              <li>
                <%= link_to "Log out", logout_path, method: "delete" %>
              </li>
            </ul>
          </li>
        <% else %>
          <li><%= link_to "Log in", login_path %></li>
        <% end %>
      </ul>
    </nav>
  </div>
</header>

Michael Hartl Tut 3 Ch 9 - UserLoginTest失败

0 个答案: