Ruby on rails rspec./spec/requests/static\u pages\u spec失败。迈克尔·哈特尔的第五章'；导游_Ruby On Rails_Ruby_Rspec

Ruby on rails rspec./spec/requests/static\u pages\u spec失败。迈克尔·哈特尔的第五章'；导游

ruby-on-rails ruby rspec

Ruby on rails rspec./spec/requests/static\u pages\u spec失败。迈克尔·哈特尔的第五章'；导游,ruby-on-rails,ruby,rspec,Ruby On Rails,Ruby,Rspec,我不知道是什么导致了这些失败！这是我在stackoverflow上的第一篇帖子，如果我遗漏了一些需要的信息，我会提前道歉。。好吧，失败就在这里 Failures: 1) Static pages Help page Failure/Error: it { should have_selector('title', text: full_title('Help')) } expected css "title" with text "Ruby on Rails Tutorial Sam

我不知道是什么导致了这些失败！这是我在stackoverflow上的第一篇帖子，如果我遗漏了一些需要的信息，我会提前道歉。。好吧，失败就在这里

Failures:

1) Static pages Help page 
 Failure/Error: it { should have_selector('title', text: full_title('Help')) }
   expected css "title" with text "Ruby on Rails Tutorial Sample App | Help" to return something
 # ./spec/requests/static_pages_spec.rb:19:in `block (3 levels) in <top (required)>'

2) Static pages About page 
 Failure/Error: it { should have_selector('title', text: full_title('About Us')) }
   expected css "title" with text "Ruby on Rails Tutorial Sample App | About Us" to return something
 # ./spec/requests/static_pages_spec.rb:26:in `block (3 levels) in <top (required)>'

3) Static pages Contact page 
 Failure/Error: it { should have_selector('title', text: full_title('Contact')) }
   expected css "title" with text "Ruby on Rails Tutorial Sample App | Contact" to return something
 # ./spec/requests/static_pages_spec.rb:33:in `block (3 levels) in <top (required)>'

Finished in 0.35756 seconds
9 examples, 3 failures

Failed examples:

rspec ./spec/requests/static_pages_spec.rb:19 # Static pages Help page 
rspec ./spec/requests/static_pages_spec.rb:26 # Static pages About page 
rspec ./spec/requests/static_pages_spec.rb:33 # Static pages Contact page

静态页面规格rb

require 'spec_helper'

describe "Static pages" do

subject { page }

describe "Home page" do
before { visit root_path }

it { should have_selector('h1',    text: 'Sample App') }
it { should have_selector('title', text: full_title('')) }
it { should_not have_selector 'title', text: '| Home' }
end

describe "Help page" do
before { visit help_path }

it { should have_selector('h1',    text: 'Help') }
it { should have_selector('title', text: full_title('Help')) }
end

describe "About page" do
before { visit about_path }

it { should have_selector('h1',    text: 'About') }
it { should have_selector('title', text: full_title('About Us')) }
end

describe "Contact page" do
before { visit contact_path }

it { should have_selector('h1',    text: 'Contact') }
it { should have_selector('title', text: full_title('Contact')) }
end
end

contact.html.erb

 <h1>Contact</h1>
 <p>
 Contact Ruby on Rails Tutorial about the sample app at the
 <a href="http://railstutorial.org/contact">contact page</a>.
 </p>

联系人

有关示例应用程序的详细信息，请联系RubyonRails教程
.

application.html.erb

<!DOCTYPE html>
<html>
<head>
<title><%= full_title(yield(:title)) %></title>
<%= stylesheet_link_tag    "application", media: "all" %>
<%= javascript_include_tag "application" %>
<%= csrf_meta_tags %>
<%= render 'layouts/shim' %>    
</head>
<body>
<%= render 'layouts/header' %>
<div class="container">
  <%= yield %>
  <%= render 'layouts/footer' %>
</div>
</body>
</html>

您的测试失败，因为您的应用程序布局正在生成标题，但您没有在任何地方设置标题。当您在视图中看到

yield:something

时，例如对于标题，这意味着视图将为“：something”呈现它知道的任何内容。在您的情况下，标题将通过以下方式显示：

<title><%= full_title(yield(:title)) %></title>

在每个视图中重复此操作可能会很乏味，因此许多人会为标题创建一个帮助器：

module ApplicationHelper
  def title(page_title = '')
    content_for(:title) { page_title }
  end
end

在你看来，你可以做：

<%= title 'My Title' %>

查看此技术的更多信息

您在contact.html.erb中没有关于：title的任何

内容，因此您的title标签不应包含您期望的内容。对不起，我没有跟踪您。请你再解释一遍好吗？除非你在contact.html.erb
中添加title
的内容，否则你的收益（：title）不会有任何作用，我发布了一个更详细的答案，你也可以观看
module ApplicationHelper
  def title(page_title = '')
    content_for(:title) { page_title }
  end
end

<%= title 'My Title' %>