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require 'test/unit'
require 'rubygems'
require 'mocha'

class ReservationService
  # implementation
end

class HotelRoom
  attr_accessor :booked
  def book_for(customer)
    reservation = ReservationService.reserve_for(customer, self)
    self.booked = true
    MaidService.notify(reservation) if reservation.tomorrow?
    VipService.notify(reservation) if reservation.for_vip?
    reservation.confirmation_number
  end
end

class HotelRoomTests < Test::Unit::TestCase
  def test_book_for_reserves_via_ReservationService
    room = HotelRoom.new
    ReservationService.expects(:reserve_for).with(:customer, room).returns(stub_everything)
    room.book_for(:customer)
  end
end