require "./checkout.rb"

checkout = Checkout.new()

checkout.add(:PI5)
checkout.add(:ZERO2W)

puts checkout.items # ["PI5", "ZERO2W"]
puts checkout.total # 75.00


checkout = Checkout.new()
checkout.add(:ZERO2W)
checkout.add(:ZERO2W)

puts checkout.total # 15.00


checkout = Checkout.new()
checkout.add(:ZERO2W)
checkout.add(:ZERO2W)
checkout.add(:ZERO2W)

puts checkout.total # 30.00


checkout = Checkout.new()
checkout.add(:PICO2)
checkout.add(:PICO2)
checkout.add(:PICO2)

puts checkout.total # 10.50


checkout = Checkout.new()
checkout.add(:PI5)
checkout.add(:ZERO2W)
checkout.add(:ZERO2W)
checkout.add(:PICO2)
checkout.add(:PICO2)
checkout.add(:PICO2)
checkout.add(:PICO2)

puts checkout.total # 89.00