Testing login "remember me" feature with Capybara (rack::test or selenium) - deleting the session cookie (only)

cookie_steps.rb

Then /^show me the cookies!$/ do
  driver = Capybara.current_session.driver
  case driver
  when Capybara::Driver::Selenium
    announce_selenium_cookies(Capybara.current_session.driver.browser)
  when Capybara::Driver::RackTest
    announce_rack_test_cookies(get_rack_test_cookie_jar)
  else 
    raise "unsupported driver, use rack::test or selenium/webdriver"
  end
end

Given /^I close my browser \(clearing the Medify session\)$/ do
  delete_cookie session_cookie_name
end

module CookieStepHelper
  def session_cookie_name
    Rails.application.config.session_options[:key] #for rails 3, courtesy of https://github.com/ilpoldo
    #else just hard code it as follows
    #'_appname_session' #or check in browser for what your app is using
  end

  def delete_cookie(cookie_name)
    driver = Capybara.current_session.driver
    case driver
    when Capybara::Driver::Selenium
      browser = Capybara.current_session.driver.browser
      announce_selenium_cookies(browser) if @announce
      browser.manage.delete_cookie(cookie_name)
      announce "Deleted cookie: #{cookie_name}" if @announce
      announce_selenium_cookies(browser) if @announce
    when Capybara::Driver::RackTest
      announce_rack_test_cookies(get_rack_test_cookie_jar) if @announce
      delete_rack_test_cookie(get_rack_test_cookie_jar, cookie_name)
      announce "Deleted cookie: #{cookie_name}" if @announce
      announce_rack_test_cookies(get_rack_test_cookie_jar) if @announce
    else 
      raise "unsupported driver, use rack::test or selenium/webdriver"
    end
  end

  def announce_rack_test_cookies(cookie_jar)
    announce "Current cookies: #{cookie_jar.instance_variable_get(:@cookies).map(&:inspect).join("\n")}"
  end
  
  def announce_selenium_cookies(browser)
    announce "Current cookies: #{browser.manage.all_cookies.map(&:inspect).join("\n")}"
  end
  
  def get_rack_test_cookie_jar
    rack_test_driver = Capybara.current_session.driver
    cookie_jar = rack_test_driver.current_session.instance_variable_get(:@rack_mock_session).cookie_jar
  end
  
  def delete_rack_test_cookie(cookie_jar, cookie_name)
    cookie_jar.instance_variable_get(:@cookies).reject! do |existing_cookie|
      existing_cookie.name.downcase == cookie_name
    end
  end
end
World(CookieStepHelper)
Before('@announce') do
  @announce = true
end

remember_me.feature

  @javascript @announce
  Scenario: remembering users so they don't have to log in again for a while
    Given an activated member exists with forename: "Paul", surname: "Smith", email: "paul_smith_91@gmail.com", password: "bananabanana"
    When I go to the dashboard
    Then I should see "Existing Member Login"
    When I fill in "Email" with "paul_smith_91@gmail.com" within "#member_login"
    And I fill in "Password" with "bananabanana" within "#member_login"
    And I check "Remember me"
    And I press "Sign in"
    Then I should be on the dashboard
    And I should see "Logged in as Paul Smith"
    And I should see "Sign out"

    Given I close my browser (clearing the Medify session)
    When I come back next time
    And I go to the dashboard
    Then I should see "Logged in as Paul Smith"
    And I should see "Sign out"

  @rack_test @announce
  Scenario: don't remember users across browser restarts if they don't want it
    Given an activated member exists with forename: "Paul", surname: "Smith", email: "paul_smith_91@gmail.com", password: "bananabanana"
    When I go to the dashboard
    Then I should see "Existing Member Login"
    When I fill in "Email" with "paul_smith_91@gmail.com" within "#member_login"
    And I fill in "Password" with "bananabanana" within "#member_login"
    And I uncheck "Remember me"
    And I press "Sign in"
    Then I should be on the dashboard
    And I should see "Logged in as Paul Smith"
    And I should see "Sign out"

    Given I close my browser (clearing the Medify session)
    When I come back next time
    And I go to the dashboard
    Then I should see "Existing Member Login"
    And I should not see "Logged in as Paul Smith"
    And I should not see "Sign out"

Nice! The only thing I'm having a problem with is how to implement "When I come back next time". What does the step definition look like?

Mine's just an alias for the visit homepage step, like this:

When /^I come back next time$/ do
  When "I go to the homepage"
end

It's just so it reads better in the scenario rather than to do anything technical (the "go to the dashboard" step is enough)

Great! Thanks for the quick response.

It works very well.
Thank you sir.

In case you don't want to bake in the helper method the session key for the app you are working you can access it like this if you are testing a rails 3 app

  def session_cookie_name
    Rails.application.config.session_options[:key]
  end

Thanks, that's a nice addition. I wrote this for rails 2.3 and didn't spent too long looking for a way to do that.
I've updated the gist

Given that there's been some interest in using this I've refactored it and made a real repo so refactoring and new features and whatnot can be done properly.
There's also been culerity support added (from xunker's gist fork) and it's been made into a gem.

note, in cucumber 1.0.0, you have to check for Capybara::Selenium::Driver, not Capybara::Driver::Selenium, same for RackTest i think

@cice there's a more up-to-date version at https://github.com/nruth/show_me_the_cookies though this particular change is in capybara not cucumber. There's actually a method returning the driver name as a symbol now, so no need to use the driver's class.

alright, thnx alot

A slightly cleaned-up version that also supports Webkit.

NOTES:

1. It's based on the code above so it's supposed to work with Selenium & RackTest but I've only tested it against Webkit.
2. It does not support the @announce tag.
3. I've just noticed the gem. :D

https://gist.github.com/4367281