我正在编写 ruby.railstutorial.org/ruby-on-rails-tutorial-book。 我正在使用 rails 3.2.7、spork、rspec、capybara、launchy 和一些 guards :)
我在第 3 章的测试中遇到了一个非常奇怪的问题:
似乎测试对 <head> 中的内容不起作用-标签。如果我把 <title> -<body> 内的标签-tag 而不是 head-tag 它工作正常。
当我输入 <h1> 时它也有效-<title> 上方的标签里面<head> -标签。这很奇怪，不是吗？
请帮我弄清楚。
示例来自:ruby.railstutorial.org/chapters/static-pages#code:title_test:
it "should have the right title" do
visit '/static_pages/home'
page.should have_selector('title',
:text => "Ruby on Rails Tutorial Sample App | Home")
end
错误信息是:
Failures:
1) Static pages Home page should have the title 'Home' Failure/Error: page.should have_selector('title', :text => ' | Home') Capybara::ExpectationNotMet: expected to find css "title" with text " | Home" but there were no matches. Also found "", which matched the selector but not all filters. # ./spec/requests/static_pages_spec.rb:15:in `block (3 levels) in '
那个正在工作:
it "should have the h1 'Sample App'" do
visit '/static_pages/home'
page.should have_selector('h1', :text => 'Sample App')
end
呈现的 HTML 文件:
<!DOCTYPE html>
<html>
<head>
<title>Ruby on Rails Tutorial Sample App | Home</title>
<!-- some css,js stuff -->
</head>
<body>
<h1>Sample App</h1>
<p>
This is the home page for the
<a href="http://railstutorial.org/">Ruby on Rails Tutorial</a>
sample application
</p>
</body>
</html>
谢谢
编辑: 你可以在 github 上找到我正在使用的文件: https://github.com/farukg/sample_app/
规范文件的链接: https://github.com/farukg/sample_app/blob/master/spec/requests/static_pages_spec.rb
我做了什么的解释: 主页的代码就像它应该的那样。 关于页面的代码有自己的布局，内部标题标签上方有一个 h1 标签，以表明它出于某种原因有效。 最后，帮助页面在 body 标签内有它的 title 标签，这也是有效的。
我很困惑，为什么我会有如此奇怪的行为？
guard的完整输出:
> Run all
Bundle already up-to-date
Running all specs
Running tests with args ["--drb", "--colour", "-f", "progress", "-r", "/home/faruk/.rvm/gems/ruby-1.9.3-p125/gems/guard-rspec-1.2.0/lib/guard/rspec/formatters/notification_rspec.rb", "-f", "Guard::RSpec::Formatter::NotificationRSpec", "--out", "/dev/null", "--failure-exit-code", "2", "spec"]...
..FFF.....Neues Fenster in aktueller Browsersitzung erstellt.
.FF..
Failures:
1) Static pages Home page having application layout should have_selector head title 'Home'
Failure/Error: page.should have_selector('head title',
Capybara::ExpectationNotMet:
expected to find css "head title" with text "Ruby on Rails Tutorial Sample App | Home" but there were no matches. Also found "", which matched the selector but not all filters.
# ./spec/requests/static_pages_spec.rb:23:in `block (3 levels) in <top (required)>'
2) Static pages Home page having application layout should have content 'Home'
Failure/Error: page.should have_content("Ruby on Rails Tutorial Sample App | Home")
expected there to be text "Ruby on Rails Tutorial Sample App | Home" in "Sample App This is the home page for the Ruby on Rails Tutorial sample application"
# ./spec/requests/static_pages_spec.rb:30:in `block (3 levels) in <top (required)>'
3) Static pages Home page having application layout should have css title 'Home'
Failure/Error: page.should have_css("title", :text => "Ruby on Rails Tutorial Sample App | Home")
Capybara::ExpectationNotMet:
expected to find css "title" with text "Ruby on Rails Tutorial Sample App | Home" but there were no matches. Also found "", which matched the selector but not all filters.
# ./spec/requests/static_pages_spec.rb:36:in `block (3 levels) in <top (required)>'
4) Static pages about page with own layout should JUST have_selector head title
Failure/Error: page.should have_selector('head title')
Capybara::ExpectationNotMet:
expected to find css "head title" but there were no matches
# ./spec/requests/static_pages_spec.rb:86:in `block (3 levels) in <top (required)>'
5) Static pages about page with own layout should have_selector head title 'About Us'
Failure/Error: page.should have_selector('head title',
Capybara::ExpectationNotMet:
expected to find css "head title" with text "Ruby on Rails Tutorial Sample App | About Us" but there were no matches
# ./spec/requests/static_pages_spec.rb:93:in `block (3 levels) in <top (required)>'
Finished in 0.66215 seconds
15 examples, 5 failures
Failed examples:
rspec ./spec/requests/static_pages_spec.rb:20 # Static pages Home page having application layout should have_selector head title 'Home'
rspec ./spec/requests/static_pages_spec.rb:27 # Static pages Home page having application layout should have content 'Home'
rspec ./spec/requests/static_pages_spec.rb:33 # Static pages Home page having application layout should have css title 'Home'
rspec ./spec/requests/static_pages_spec.rb:83 # Static pages about page with own layout should JUST have_selector head title
rspec ./spec/requests/static_pages_spec.rb:90 # Static pages about page with own layout should have_selector head title 'About Us'
Done.
> Neues Fenster in aktueller Browsersitzung erstellt.
Neues Fenster in aktueller Browsersitzung erstellt.
最佳答案
只是因为<title>在<head>所以它没有出现。
使用它，解决了我的问题:
page.should have_selector 'title', :visible => false
提示:您可以应用相同的方式查看其他<head>元素，例如 <meta> ，例如，确保您(并且您将继续)对 Google 友好。
关于使用规范进行测试，railstutorial 第 3 章中的 capybara 不起作用(have_selector ('title'，:text => ' | Home' ))，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/11726316/