Rails + Cucumber/Capybara: How to set/retrieve cookies in tests?

So eventually I figured it out after trying a lot of different things.

Given(/^I didn't log out the last time I was on the site$/) do  user = FactoryGirl.create(:user)  visit new_user_session_path  fill_in('user[email]', with: user.email)  fill_in('user[password]', with: 'test123')  click_button('Sign in')  Capybara.current_session.driver.request.cookies.[]('auth_token').should_not be_nil  auth_token_value = Capybara.current_session.driver.request.cookies.[]('auth_token')  Capybara.reset_sessions!  page.driver.browser.set_cookie("auth_token=#{auth_token_value}")endWhen(/^I go to the homepage$/) do  visit root_pathendThen(/^I should automatically be logged in$/) do  page.should have_content("Logout")end

UPDATE:

Here's what I use in case I'm using Selenium for some of the tests:

if Capybara.current_session.driver.class == Capybara::Selenium::Driver  auth_token = page.driver.browser.manage.cookie_named('auth_token')[:value]  page.driver.browser.manage.delete_all_cookies  page.driver.browser.manage.add_cookie(:name => "auth_token", :value => auth_token)else  puts "cookies = #{Capybara.current_session.driver.request.cookies}"  Capybara.current_session.driver.request.cookies.[]('auth_token').should_not be_nil  auth_token_value = Capybara.current_session.driver.request.cookies.[]('auth_token')  Capybara.reset_sessions!  page.driver.browser.set_cookie("auth_token=#{auth_token_value}")end

Use https://github.com/nruth/show_me_the_cookies which wraps the driver methods. It has methods for getting cookies, deleting cookies, and a method for creating cookies called create_cookie.

I needed just to test the cookie values

Inspiration taken from https://collectiveidea.com/blog/archives/2012/01/05/capybara-cucumber-and-how-the-cookie-crumbles

and ported to Rails 5.x

Create features/support/cookies.rb

With content

module Capybara  class Session    def cookies      @cookies ||= ActionDispatch::Request.new(Rails.application.env_config.deep_dup).cookie_jar    end  endendBefore do  allow_any_instance_of(ActionDispatch::Request).to receive(:cookie_jar).and_return(page.cookies)  allow_any_instance_of(ActionDispatch::Request).to receive(:cookies).and_return(page.cookies)end

Then the step for testing

Then('is set cookie {string} with value {string}') do |cookie, value|  expect(page.cookies.signed[cookie]).to eq valueend