tomstuart

require "rspec"

def combinations(array, length)
  if length.zero?
    [[]]
  else
    array.each_index.map { |i| array.drop(i) }.flat_map do |head, *tail|
      combinations(tail, length - 1).map do |combination|
        [head] + combination
      end

tomstuart

#http://www.nhs.uk/NHSEngland/Healthcosts/Pages/Prescriptioncosts.aspx
 
Given a user who is 60 or older
When they collect a prescription
Then it should be free
 
Given a user who is younger than 16
When they collect a prescription
Then it should be free

tomstuart

module ScoreHelpers
  def self.extended(base)
    base.class_eval do
      let(:scores) { {} }
    end
  end

  def the_letter(letter, options)
    score = options[:is_worth]