shicholas

module StringCalculator
  String.class_eval do 
    
    def calc
      raise NoNegativeNumbers.new(numbers.select{|n| n < 0}) if numbers.any?{|n| n < 0}
      numbers.inject(0, &:+)
    end

    private

shicholas

class Bowling

  def initialize
    @rolls = []
  end

  def roll(pins)
    @rolls << pins
  end

shicholas

## Customize the test machine
machine:

  timezone:
    America/Los_Angeles # Set the timezone
  # Version of ruby to use
  ruby:
    version:
      1.9.3-p392