dropdown_with_base.rb

require 'selenium-webdriver'

class BasePage

  def initialize(driver)
    @driver = driver
  end

  def visit(url)
    @driver.get url
  end

  def find_element(locator)
    @driver.find_element locator
  end

  def dropdown_select(locator, selection)
    dropdown_element = find_element locator
    dropdown = Selenium::WebDriver::Support::Select.new(dropdown_element)
    dropdown.select_by(:value, selection)
  end

end


class Dropdown < BasePage

  DROPDOWN_LIST = { id: 'dropdown' }

  def initialize(driver)
    @driver = driver
    visit 'http://the-internet.herokuapp.com/dropdown'
  end

  def select(selection)
    dropdown_select DROPDOWN_LIST, selection
  end

end

@driver = Selenium::WebDriver.for :firefox
dropdown = Dropdown.new(@driver)
dropdown.select('1')
@driver.quit