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[rails.git] / vendor / gems / rspec-1.1.2 / examples / stories / adder.rb

class Adder
  def initialize
    @addends = []
  end
  
  def <<(val)
    @addends << val
  end
  
  def sum
    @addends.inject(0) { |sum_so_far, val| sum_so_far + val }
  end
end