page object expressiveness.rb

module Pages
  class Checkout
    include Capybara::DSL
    
    def visit
      visit checkout_path
    end
    
    def change_payment_method(payment_method)
      if payment_method == :credit_card
      select "Credit Card", from: '.payment_method'
    end
    
    # ...
  end
end

feature 'Purchasing products' do
  scenario "Customer checks out with valid credit card" do
    # ... setup
    checkout_page = Pages::Checkout.new
    checkout_page.visit
    checkout_page.change_payment_method(:credit_card)
    checkout_page.set_credit_card(number: "4111111111111111", exp: "10/20", cvv: 123)
    checkout_page.choose_delivery_option(:free_two_day)
    checkout_page.click_place_order
    
    checkout_confirmation_page = Pages::CheckoutConfirmation.new
    expect(checkout_confirmation_page).to be_on_page
    expect(checkout_confirmation_page).to have_product("Boosted Longboard")
  end
end