Mel*_*emi 19 rspec ruby-on-rails capybara
试图测试该页面包含<title>My Title</title>:
# spec/features/reports_spec.rb
require 'spec_helper'
feature "Archive Management" do
subject { page }
describe "Index Page" do
before(:all) { 10.times { FactoryGirl.create(:randomreport) } }
after(:all) { Report.delete_all }
describe "when no search terms present" do
before { visit reports_path }
it { should have_selector('title', text: 'My Title') } # <= Fails w/Capybara 2.0
it { should have_selector('title') } # <= passes
it { should have_text('My Title') } # <= passes
it { should have_selector('h2', text: "Welcome") } # <= passes
end
end
end
错误信息:
Failure/Error: it { should have_selector('title', text: base_title) }
Capybara::ExpectationNotMet:
expected to find css "title" with text "My Title" but there were no matches. Also found "", which matched the selector but not all filters.
我知道我忽略了痛苦的明显,但无法弄清楚它是什么？<title>标签是否不再被视为"选择器"？!？要么...？!？
编辑(调试器信息):
如果我按照@shioyama的巧妙建议下载到调试器中,很明显page.body包含<title>My Title</title>.包含<h2>Welcome to My Title Project</h2>并传递的相同page.body !
它似乎找到了<title>... </title>标签但不在My Title其中.但它确实会My Title在页面内部<a href=\"/\" class=\"brand\">My Title</a>和/或之后找到<h2>Welcome to The My Title Project</h2>:
(rdb:1) p page
#<Capybara::Session>
(rdb:1) p page.body
"<!DOCTYPE html>\n<html>\n<head>\n<title>My Title</title>\n
<meta content='research, report, technology' name='keywords'>\n<meta
content='Some Project' name='description'>\n<link href=\"/assets/application.css\"
...
</head>\n<body>\n<header class='navbar navbar-fixed-top
navbar-inverse'>\n<div class='navbar-inner'>\n<div class='container'>\n
<a href=\"/\" class=\"brand\">My Title</a>\n<div class='pull-right'>\n
<ul class='nav'>\n<li><a href=\"/about\">About</a></li>\n<li><a href=\"/help\">Help</a>
</li>\n</ul>\n<form accept-charset=\"UTF-8\" action=\"/reports\"
class=\"navbar-search\" method=\"get\"><div style=\"margin:0;padding:0;display:inline\">
<input name=\"utf8\" type=\"hidden\" value=\"✓\" /></div>\n
<input class=\"search-query\" id=\"query\" name=\"query\"
placeholder=\"Search\" type=\"text\" />\n</form>\n\n</div>\n</div>\n</div>\n</header>\n\n
<div class='container'>\n<div class='hero-unit center'>\n<h1>My Title</h1>\n
<h2>Welcome to The My Title Project</h2>\n<p>Lorem ipsum dolor sit amet, consectetur
adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
...
我还可以在调试器中尝试找出为什么has_selector？('title',text:...)失败？
那么,在Capybara 2.0中测试标题的正确方法是什么？
Pau*_*nti 35
当我升级到Capybara 2.0时,我遇到了同样的问题,并设法通过创建以下自定义RSpec匹配器来解决它们Capybara.string:
规格/支持/ utilities.rb
RSpec::Matchers::define :have_title do |text|
match do |page|
Capybara.string(page.body).has_selector?('title', text: text)
end
end
现在,在spec文件中subject { page },我可以使用:
it { should have_title("My Title") }
it { should_not have_title("My Title") }
顺便说一句,关于这个问题的对话对我这个答案非常有帮助,谢谢!
如果您不想创建自定义RSpec匹配器,感谢用户dimuch的这个StackOverflow答案我现在知道您可以直接调用(别名)来测试不可见的DOM元素:have_selectorpage.sourcepage.body
it "should show the correct title" do
page.source.should have_selector('title', text: 'My Title')
end
或者在哪里subject { page }:
its(:source) { should have_selector('title', text: 'My Title') }
从Capybara 2.1开始,有内置have_title/ has_title?匹配器,在这个答案中无需定制RSpec匹配器.此外,its(:source) { ... }Update 1中描述的测试似乎在Capybara 2.1中有所突破; 我已经按预期确认了have_title/ has_title?work,所以如果您打算升级,最好使用以下语法:
时间subject { page }:
it { should have_title("My Title") }
it { should_not have_title("My Title") }
在/ block中使用expect语法时:itscenario
expect(page).to have_title("My Title")
expect(page).to_not have_title("My Title")
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