Capybara + Rspec: How to set up multi browser TC running?

Question

I am trying to set up environment to run my TC in different browsers. But currently TC are run normally just in Chrome browser, Firefox browser is opened but nothing happens (test scenarios are not run) when I am trying to run TC in FF, Opera, Safari browsers. How to adjust my settings to be able to run TC successfully in all browsers? Also is there a way to run TC in parallel? Here is my rails_helper.rb file:

require 'test/unit'
require 'selenium-webdriver'
require 'capybara'
require 'rspec'
require "rails/all"
require 'capybara/rspec'
require "page-object"
require 'rspec/expectations'
require 'securerandom'
require '../Test_helpers/login_helper'
require 'capybara-screenshot/rspec'
require 'launchy'

RSpec.configure do |config|

  config.include LoginHelper
  config.include RSpec::Matchers
  config.include Capybara::DSL

  environment = 'firefox'

  if environment =='chrome'
    Selenium::WebDriver::Chrome.driver_path = '../Resources/chromedriver.exe'
    Capybara.default_driver = :chrome
    Capybara.register_driver :selenium do |app|
      options = {
          :js_errors => false,
          :timeout => 360,
          :debug => false,
          :inspector => false,
      }
      Capybara::Selenium::Driver.new(app, :browser => :chrome)
    end
  elsif environment =='firefox'
    Capybara.default_driver = :firefox
    Capybara.register_driver :selenium do |app|
      options = {
          :js_errors => true,
          :timeout => 360,
          :debug => false,
          :inspector => false,
      }
      Capybara::Selenium::Driver.new(app, :browser => :firefox)
    end
  elsif environment == 'safari'
    Capybara.default_driver = :safari
    Capybara.register_driver :safari do |app|
      options = {
          :js_errors => false,
          :timeout => 360,
          :debug => false,
          :inspector => false,
      }
      Capybara::Selenium::Driver.new(app, :browser => :safari)
    end
  elsif environment == 'opera'
    Capybara.default_driver = :opera
    Capybara.register_driver :opera do |app|
      options = {
          :js_errors => false,
          :timeout => 360,
          :debug => false,
          :inspector => false,
      }
      Capybara::Selenium::Driver.new(app, :browser => :opera)
    end
  elsif
  Capybara.default_driver = :poltergeist
    Capybara.register_driver :poltergeist do |app|
      options = {
          :js_errors => false,
          :timeout => 360,
          :debug => false,
          :phantomjs_options => ['--load-images=no', '--disk-cache=false'],
          :inspector => false,
      }
      Capybara::Poltergeist::Driver.new(app, options)
    end
  end

  Capybara.save_path = "../Reports" # path where screenshots are saved

  config.after { |example_group| CapybaraScreenshot.save_and_open_page_path if example_group.exception }

  Capybara::Screenshot.register_filename_prefix_formatter(:rspec) do |example|
    "screenshot_#{example.description.gsub(' ', '-').gsub(/^.*\/spec\//, '')}"
  end

end

Capybara.default_max_wait_time = 15

Answer 1

If you happen to pass here looking for a way to run every test through many browsers, I wrote this (working!) (overly talkative) snippet based on Thomas Walpole's accepted answer:

Rspec.configure do |conf|

  Capybara.register_driver :chrome do |mode|
      Capybara::Selenium::Driver.new mode, :browser => :remote, :desired_capabilities => :chrome
    end

    Capybara.register_driver :firefox do |mode|
      Capybara::Selenium::Driver.new mode, :browser => :remote, :desired_capabilities => :firefox
  end

  ## Here we politely ask every example to run twice, for each browser we want
  conf.around do |example|
    puts '~> ' + example.metadata[:example_group][:full_description]
    # avoid looping over Capybara.drivers as it will also contain "selenium" generic driver and "rack_test" basic (js-less) browser
    [:chrome, :firefox].each do |browser|
      Capybara.current_driver = browser
      puts "~~> #{example.description} @ #{browser}"
      example.run
    end
  end

  Capybara.default_driver = :chrome
end

The output ends being something like:

~> The contact page
~~> loads @ chrome
~~> loads @ firefox
.

Finished in 20.9 seconds (files took 2.69 seconds to load)
1 example, 0 failures

Obviously all puts lines can be removed / commented out, they're there just for sample purposes :)

After each ~~> line the said browser opens and runs the example.
Care must be taken, however, to remove :js => true from your examples, or else Capybara will force-run them against the default javascript_driver instead.