Rails-devise-roles测试中的代码船中断

Question

在Codeship的CI中运行时，rails user-edit-spec.rb -roles应用程序对user-delete-spec.rb和user-edit-spec.rb的Selenium测试似乎已中断。 rspec在我的本地计算机上可以正常工作，但是在Codeship中中断。

我得到的rspec输出如下：

Failures:

1) User delete user can delete own account
Failure/Error: visit edit_user_registration_path(user)

Selenium::WebDriver::Error::ServerError:
  status code 500
# /home/rof/cache/bundler/ruby/2.3.0/gems/selenium-webdriver-3.4.0/lib/selenium/webdriver/remote/response.rb:72:in `assert_ok'
# /home/rof/cache/bundler/ruby/2.3.0/gems/selenium-webdriver-3.4.0/lib/selenium/webdriver/remote/response.rb:32:in `initialize'
# /home/rof/cache/bundler/ruby/2.3.0/gems/selenium-webdriver-3.4.0/lib/selenium/webdriver/remote/http/common.rb:83:in `new'
# /home/rof/cache/bundler/ruby/2.3.0/gems/selenium-webdriver-3.4.0/lib/selenium/webdriver/remote/http/common.rb:83:in `create_response'
# /home/rof/cache/bundler/ruby/2.3.0/gems/selenium-webdriver-3.4.0/lib/selenium/webdriver/remote/http/default.rb:107:in `request'
# /home/rof/cache/bundler/ruby/2.3.0/gems/selenium-webdriver-3.4.0/lib/selenium/webdriver/remote/http/common.rb:61:in `call'
# /home/rof/cache/bundler/ruby/2.3.0/gems/selenium-webdriver-3.4.0/lib/selenium/webdriver/remote/w3c_bridge.rb:640:in `execute'
# /home/rof/cache/bundler/ruby/2.3.0/gems/selenium-webdriver-3.4.0/lib/selenium/webdriver/remote/w3c_bridge.rb:114:in `create_session'
# /home/rof/cache/bundler/ruby/2.3.0/gems/selenium-webdriver-3.4.0/lib/selenium/webdriver/remote/w3c_bridge.rb:76:in `initialize'
# /home/rof/cache/bundler/ruby/2.3.0/gems/selenium-webdriver-3.4.0/lib/selenium/webdriver/firefox/w3c_bridge.rb:45:in `initialize'
# /home/rof/cache/bundler/ruby/2.3.0/gems/selenium-webdriver-3.4.0/lib/selenium/webdriver/common/driver.rb:52:in `new'
# /home/rof/cache/bundler/ruby/2.3.0/gems/selenium-webdriver-3.4.0/lib/selenium/webdriver/common/driver.rb:52:in `for'
# /home/rof/cache/bundler/ruby/2.3.0/gems/selenium-webdriver-3.4.0/lib/selenium/webdriver.rb:88:in `for'
# /home/rof/cache/bundler/ruby/2.3.0/gems/capybara-2.14.0/lib/capybara/selenium/driver.rb:22:in `browser'
# /home/rof/cache/bundler/ruby/2.3.0/gems/capybara-2.14.0/lib/capybara/selenium/driver.rb:62:in `visit'
# /home/rof/cache/bundler/ruby/2.3.0/gems/capybara-2.14.0/lib/capybara/session.rb:269:in `visit'
# /home/rof/cache/bundler/ruby/2.3.0/gems/capybara-2.14.0/lib/capybara/dsl.rb:50:in `block (2 levels) in <module:DSL>'
# ./spec/features/users/user_delete_spec.rb:21:in `block (2 levels) in <top (required)>'

2) User edit user changes email address
Failure/Error: visit edit_user_registration_path(user)

Selenium::WebDriver::Error::ServerError:
  status code 500
# [removed stack trace]

3) User edit user cannot cannot edit another user's profile
Failure/Error: visit edit_user_registration_path(other)

Selenium::WebDriver::Error::ServerError:
  status code 500
# [removed stack trace]

Finished in 23.21 seconds (files took 2.99 seconds to load)
31 examples, 3 failures

Failed examples:

rspec ./spec/features/users/user_delete_spec.rb:18 # User delete user can delete own account
rspec ./spec/features/users/user_edit_spec.rb:18 # User edit user changes email address
rspec ./spec/features/users/user_edit_spec.rb:45 # User edit user cannot cannot edit another user's profile

这是其中一种失败情况的示例：

scenario 'user can delete own account' do
    # skip 'skip a slow test' [removed from the original file]
    user = FactoryGirl.create(:user)
    login_as(user, :scope => :user)
    visit edit_user_registration_path(user)
    click_button 'Cancel my account'
    page.driver.browser.switch_to.alert.accept
    expect(page).to have_content I18n.t 'devise.registrations.destroyed'
end

这里出了什么问题，我该如何修改才能通过测试？ （为澄清起见，在这些页面中的任何页面上，我的本地部署都没有错误500，也没有基于rails-devise-roles的我的应用程序的Heroku实时部署中出现错误500。）

Answer 1

接触到了非常有帮助的Codeship支持人员，他告诉我这是Firefox和Firefox的geckodriver都存在的问题，需要在Codeship VM上进行更新。 如果其他任何人也有此问题，请参见以下代码：

export FIREFOX_VERSION=53.0.3
curl -sSL https://raw.githubusercontent.com/codeship/scripts/master/packages/firefox.sh | bash -s
export GECKODRIVER_VERSION=0.17.0
source /dev/stdin <<< "$(curl -sSL https://raw.githubusercontent.com/codeship/scripts/master/languages/rust.sh)"
curl -sSL https://raw.githubusercontent.com/codeship/scripts/master/packages/geckodriver.sh | bash -s

来自Codeship支持团队的Joe Siewert的巨大道具，可以帮助我解决这个问题！