selenium_env.rb

require "Capybara"
require "Capybara/cucumber"
require "rspec"
require "selenium-webdriver"

Capybara.register_driver :selenium_chrome do |app|
  Capybara::Selenium::Driver.new(app, :browser => :chrome)
end
if Selenium::WebDriver::Platform.find_binary "chromedriver"
  Capybara.default_driver = :selenium_chrome
else
  Capybara.default_driver = :selenium
end