我正在关注Railstutorial（第9章） “删除链接”的测试是第一次传递，但从下次开始时会出现一些错误，如：
Failures:
1) User pages index delete links as an admin user
Failure/Error: sign_in admin
Capybara::ElementNotFound:
Unable to find field "Email"
# ./spec/support/utilities.rb:20:in `sign_in'
# ./spec/requests/user_pages_spec.rb:38:in `block (5 levels) in <top (required)>'
2) User pages index delete links as an admin user
Failure/Error: sign_in admin
Capybara::ElementNotFound:
Unable to find field "Email"
# ./spec/support/utilities.rb:20:in `sign_in'
# ./spec/requests/user_pages_spec.rb:38:in `block (5 levels) in <top (required)>'
3) User pages index delete links as an admin user should be able to delete another user
Failure/Error: sign_in admin
Capybara::ElementNotFound:
Unable to find field "Email"
# ./spec/support/utilities.rb:20:in `sign_in'
# ./spec/requests/user_pages_spec.rb:38:in `block (5 levels) in <top (required)>'
Finished in 0.81336 seconds
4 examples, 3 failures
Failed examples:
rspec ./spec/requests/user_pages_spec.rb:48 # User pages index delete links as an admin user
rspec ./spec/requests/user_pages_spec.rb:42 # User pages index delete links as an admin user
rspec ./spec/requests/user_pages_spec.rb:43 # User pages index delete links as an admin user should be able to delete another user
Randomized with seed 11884
以下是 utilities.rb 文件的内容
include ApplicationHelper
def full_title(page_title)
base_title = "Welcome to Family & Friends"
if page_title.empty?
base_title
else
" #{base_title} | #{page_title} "
end
end
def sign_in(user, options={})
if options[:no_capybara]
# Sign in when not using Capybara.
remember_token = User.new_remember_token
cookies[:remember_token] = remember_token
user.update_attribute(:remember_token, User.encrypt(remember_token))
else
visit signin_path
fill_in "Email", with: user.email
fill_in "Password", with: user.password
click_button "Sign in"
end
end
错误指示的user_pages_spec.rb文件的一部分
describe "delete links" do
it { should_not have_link('delete') }
describe "as an admin user" do
let(:admin) { FactoryGirl.create(:admin) }
before do
sign_in admin
visit users_path
end
it { should have_link('delete', href: user_path(User.first)) }
it "should be able to delete another user" do
expect do
click_link('delete', match: :first)
end.to change(User, :count).by(-1)
end
it { should_not have_link('delete', href: user_path(admin)) }
end
end
end
sessions_helper.rb文件，其中存在sign_in的定义
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])
@current_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
def redirect_back_or(default)
redirect_to(session[:return_to] || default)
session.delete(:return_to)
end
def store_location
session[:return_to] = request.url if request.get?
end
end
我甚至尝试使用fill_in“email_id”按照类似帖子的建议，但在这种情况下不起作用
谢谢！
以下是html为登录呈现的new.html.erb的内容
<% provide(:title, "Sign in") %>
<h2>Sign in</h2>
<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>
答案 0 :(得分：3)
旧问题，但在完成本教程时我也遇到了这个问题。什么弄乱了测试，前面的例子中的状态正在泄漏到“作为管理员用户”的例子中。
describe "User Pages" do
subject { page }
describe "index" do
let(:user) { FactoryGirl.create(:user) }
# This is messing up the lower examples
before(:each) do
sign_in user
visit users_path
end
要查看此操作，您可以在调用sign_in帮助程序之前在前一个块中添加visit signin_path然后save_and_open_page。
describe "as an admin user" do
let(:admin) { FactoryGirl.create(:admin) }
before do
visit signin_path
save_and_open_page
sign_in admin
visit users_path
end
当我的浏览器呈现页面时，我发现之前登录的用户从未退出，因此访问登录页面只会将您重定向到该用户的个人资料页面，并且用户个人资料页面上没有电子邮件字段。这就是Capybara报告Unable to find field "Email"的原因。
要修复它，我在utilities.rb文件中添加了一个sign_out帮助器。
def sign_out
first(:link, "Sign Out").click
end
我在示例
中sign_in admin之前调用它
describe "as an admin user" do
let(:admin) { FactoryGirl.create(:admin) }
before do
sign_out
sign_in admin
visit users_path
end
此后我的所有测试都通过了。
答案 1 :(得分：2)
我也有这个问题。不幸的是，我也无法使用拟议的sign_out功能。尽管save_and_open_page（在安装gem＆＃34; launchy＆＃34;之后）显示了＆＃34;退出＆＃34;链接，测试报告它在页面上找不到一个。我最终解决了测试如下：
（当然，还有两个谜团：1）我不知道为什么代码可能按照书中显示的方式工作。那么，为什么每个通过本书工作的人都有这个问题呢？ 2）为什么我的sign_out功能找不到＆＃34;退出＆＃34;链接在页面上用save_and_open_page清楚地显示。有时你只需要继续前进就能继续前进。至少它现在有效。）
以下是进行这些更改后的代码。它现在通过所有测试：
describe "index" do
let(:user) { FactoryGirl.create(:user) }
before(:each) do
sign_in user
visit users_path
end
it { should have_title('All users') }
it { should have_content('All users') }
describe "pagination" do
before(:all) { 30.times { FactoryGirl.create(:user) } }
after(:all) { User.delete_all }
it { should have_selector('div.pagination') }
it "should list each user" do
User.paginate(page: 1).each do |user|
expect(page).to have_selector('li', text: user.name)
end
end
describe "non-admin user should not have delete links" do
it { should_not have_link('delete', href: user_path(User.first)) }
end
end
end
# fhj: I could not get this to work as done in the book (i.e. placing this
# above inside the "index" block). It could not execute sign_in admin
# because it was already signed in as a non-admin user. I tried the
# suggestion to create a sign_out helper function, but I could not make
# that work either. By moving it outside of the block and recreating
# the 30 test users, I was able to get it to pass the tests.
# I also created the "non-admin user should not have delete links" block
# at the end of the "pagination" block above to test for that case properly.
describe "delete links" do
before(:all) { 30.times { FactoryGirl.create(:user) } }
after(:all) { User.delete_all }
describe "as an admin user" do
let(:admin) { FactoryGirl.create(:admin) }
before do
sign_in admin
visit users_path
end
it { should have_link('delete', href: user_path(User.first)) }
it "should be able to delete another user" do
expect do
click_link('delete', match: :first)
end.to change(User, :count).by(-1)
end
it { should_not have_link('delete', href: user_path(admin)) }
end
end