Michael Hartl的Ruby on Rails教程。 第9.1章中的失败测试

嗨，我正在完成Hartl的Ruby on Rails教程，我在第9.1章中遇到了一个失败的测试。 当我在终端中运行spec时，它返回：

sis-macbook-pro:sample_app Lagaspi$ bundle exec rspec spec/ ...............................F................................ Failures: 1) AuthenticationPages signin with valid information Failure/Error: it { should have_link('Users', href: users_path) } expected link "Users" to return something # ./spec/requests/authentication_pages_spec.rb:37:in `block (4 levels) in ' Finished in 1.42 seconds 64 examples, 1 failure Failed examples: rspec ./spec/requests/authentication_pages_spec.rb:37 # AuthenticationPages signin with valid information 

这是我的代码 – authentication_pages_spec.rb

 require 'spec_helper' describe "AuthenticationPages" do subject { page } describe "signin page" do before { visit signin_path } it { should have_selector('h1', text: 'Sign in') } it { should have_selector('title', text: 'Sign in') } end describe "signin" do before { visit signin_path } describe "with invalid information" do before { click_button "Sign in" } it { should have_selector('title', text: '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.alert-error') } end end describe "with valid information" do let(:user) { FactoryGirl.create(:user) } before { sign_in user } it { should have_selector('title', text: user.name) } it { should have_link('Profile', href: user_path(user)) } it { should have_link('Sign out', href: signout_path) } it { should have_link('Settings', href: edit_user_path(user)) } it { should have_link('Users', href: users_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 end 

我认为这是问题线（37）：

 it { should have_link('Users', href: users_path) } 

但是我该怎么办？ 我是新手，无法弄清楚。 谢谢你。

Answer 1

如果您正在学习本教程，则只有在用户登录时才能看到该链接。当用户登录时，您没有想到任何其他测试失败，即

 it { should have_link('Profile', href: user_path(user)) } it { should have_link('Sign out', href: signout_path) } it { should have_link('Settings', href: edit_user_path(user)) } 

因此，考虑到这一点，我倾向于认为问题在于视图，而不是规范。 一目了然，规格看起来很好。

你的_header.html.erb是否包含此内容

 ... <% if signed_in? %> 
<%= link_to "Users", users_path %>
 ...