Today's Kata 11-10-2015

random_number.rb

# add a logger to this class, such that there is only one logger, that writes to a file called ./logfile.txt

class Charlie

  class Logger

    def self.log(number)
      File.open("./logfile.txt", "a") do |f|
        f.puts "#{number}"
      end
    end

    def log(number)
      File.open("./logfile.txt", "a") do |f|
        f.puts "#{number}"
      end
    end

  end

  def initialize
    @logger = Logger.new
  end

  def random_number
    Logger.log rand(10000000)
    # @logger.log rand(10000000)
  end

end

# so if I say 

c = Charlie.new

c.random_number
c.random_number

# both times -- those statements log the random number to the same logger instance

# one logger instance per charlie instance
# ok well onto part two -- one logger instance for all charlie instances