黄瓜“按下按钮”失败（Capybara::ElementNotFound）

Question

我是一个相对新手，正在启动一个新的 Ruby on Rails 应用程序。我首先按照 https://github.com/intridea/omniauth、http://www.communityguides.eu/articles/16，http://intridea .com/2011/1/31/easy-rails-admin-login-with-google-apps-and-omniauth?blog=company 。当一切似乎都正常工作时，我开始编写我的第一个 Cucumber 功能和步骤。我能够启动并运行几个步骤，但我一直在一个我认为内置的步骤上陷入困境。我有一个带有两个 submit_tag 的表单，但我不能获得一个成功通过基本并且我按“按钮”步骤的场景。

可能相关的宝石：

rails (3.1.0.rc4)
capybara (1.0.0)
cucumber (1.0.1)
cucumber-rails (1.0.2)
nokogiri (1.4.7)
gherkin (2.4.5)
rack-test (0.6.0)
selenium-webdriver (0.2.2)

有问题的表格部分：

<%= form_tag :controller => "services", :action => "newaccount" do %>
  <%= submit_tag "confirm", :id => "confirm", :title => "confirm", :value => "confirm", :text => "confirm", :name => "confirm" %> 
  <%= submit_tag "cancel", :id => "cancel", :title => "cancel", :value => "cancel", :text => "cancel", :name => "cancel"  %>
<% end %>

有问题的场景：

Scenario: I register with a valid and currently active google account
    Given I am not registered
     When I sign in with a valid and currently active google account
      And I press "confirm"  # <-- THE PROBLEMATIC STEP
     Then I should see "Your account has been created and you have been signed in!"

我认为这是相关的web_step（直接来自我根本没有编辑过的默认web_steps.rb）：

When /^(?:|I )press "([^"]*)"$/ do |button|
  click_button(button)
end

相关的黄瓜输出：

Scenario: I register with a valid and currently active google account            # features/auth_and_auth/initial_tests.feature:6
  Given I am not registered                                                      # features/step_definitions/authentication_steps.rb:1
  When I sign in with a valid and currently active google account                # features/step_definitions/authentication_steps.rb:5
  And I press "confirm"                                                          # features/step_definitions/web_steps.rb:52
    no button with value or id or text 'confirm' found (Capybara::ElementNotFound)
    (eval):2:in `click_button'
    ./features/step_definitions/web_steps.rb:53:in `/^(?:|I )press "([^"]*)"$/'
    features/auth_and_auth/initial_tests.feature:9:in `And I press "confirm"'
  Then I should see "Your account has been created and you have been signed in!" # features/step_definitions/web_steps.rb:105

相关的html输出：

<input id="confirm" name="confirm" text="confirm" title="confirm" type="submit" value="confirm">
<input id="cancel" name="cancel" text="cancel" title="cancel" type="submit" value="cancel">

显而易见，我已经考虑了 value、id、text 以及 name 和 title< /代码>。我还看到一篇文章说输入类型必须指定为 submit ，看起来确实如此。我已经尝试过使用确认按钮和取消按钮。

在搜索了我所知道的所有地方，并尝试了每一个看似相关的建议后，我陷入了僵局。我缺少什么？

Answer 1

我不确定下面的代码是否是处理我遇到的问题的最佳方法，但它正在通过相关步骤。

When /^(?:|I )press "([^"]*)"$/ do |button|
# click_button(button)  # the original web_steps.rb version that fails
  %{I press (button)}   # my revised version that passes
end

我仍然感谢任何反馈：

• 为什么原始的 web_steps.rb 版本失败，
• 这是否是一个合适的方法，以及
• 是否有更“rails”的方法来处理这个问题。