如何让rspec输出遇到的内容，而不是“找不到预期的内容”？ [英] How do you get rspec to output what it encountered rather than it "didn't find what it expected"?

问题描述

我一直在努力使用ruby / rspec / capybara / devise来测试我的代码。我正在尝试写一个简单的测试是登录。我有一个有效的用户登录，并希望看到如下代码中定义的h1标签：

I have been struggling to using ruby/rspec/capybara/devise to test my code. A simple test I am trying to write is for signing in. I have a valid user sign in and expect to see an h1 tag as defined in the following code:

describe "Authentication" do

  subject { page }
  describe "with valid information" do
    let(:user) { FactoryGirl.create(:user) }
    before { sign_in_with user.email }

    it { should have_css('h1', text: "Welcome to the Test") }
  end
end

问题是我得到这个回报：

Problem is that I get this in return:

1) Authentication signin page with valid information 
 Failure/Error: it { should have_css('h1', text: "Welcome to the Test") }
   expected css "h1" with text "Welcome to the Test" to return something
 # ./spec/requests/authentication_pages_spec.rb:34:in `block (4 levels) in <top (required)>'

有没有办法输出在h1中发现的测试（或者它没有找不到它在所有？），而不是没有找到它的期望？有一个很好的机会，我的sign_in方法不起作用，但是我无法验证，因为我不知道在sign_in_with执行后测试看到什么。

Is there a way to output what the test found in the h1 (or that it didn't find it at all?) instead of it didn't find what it expected? There is a good chance my sign_in method is not working, but I can't validate that because I'm not sure what the test sees after sign_in_with executes.

谢谢

编辑
更新代码以反映测试题目。

EDIT Updated code to reflect subject of tests.

推荐答案

...我不知道在sign_in_with执行后测试看到的是什么。

... I'm not sure what the test sees after sign_in_with executes.

您可以使用打开当前页面的快照 save_and_open_page ：

You can open a snapshot of the current page with save_and_open_page:

describe "with valid information" do
  let(:user) { FactoryGirl.create(:user) }
  before { sign_in_with user.email }

  it { save_and_open_page; should have_css('h1', text: "Welcome to the Test") }
end

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