module Faker::ArrayUtils

def self.const_array(argument) 

def self.const_array(argument)
  array = argument.is_a?(Array) ? argument : argument.to_a
  array.extend ArrayUtils
  freeze_all(array)
end

def self.freeze_all(array) 

def self.freeze_all(array)
  array.each { |e| e.freeze }
  array.freeze
  array
end

def self.rand(array) 

def self.rand(array)
  array[Kernel.rand(array.length)].dup
end

def self.random_pick(array, n) 

def self.random_pick(array, n)
  indexes = (0...array.length).sort_by{Kernel.rand}[0...n]
  indexes.map { |n| array[n].dup }
end

def self.shuffle(array) 

def self.shuffle(array)
  array.sort_by{Kernel.rand}
end

def freeze_all 

def freeze_all
  ArrayUtils.freeze_all(self)
end

def rand 

def rand
  ArrayUtils.rand(self)
end

def random_pick(n) 

def random_pick(n)
  ArrayUtils.random_pick(self, n)
end

def shuffle 

def shuffle
  ArrayUtils.shuffle(self)
end