@value_pool = { :text => ('A'..'Z').to_a + ('a'..'z').to_a, :numeric => (0..100).to_a}

  def random_letter
    @value_pool[:text][rand(@value_pool[:text].size)]
  end

  def random_number
    @value_pool[:numeric][rand(@value_pool[:numeric].size)]
  end

  def make_string_of_length(range)
    sized_string = ""
    sized_string += random_letter while sized_string.length < range.first
    return sized_string
  end