module Mockdata
  class Numbers
    # random_between(2..6) # => 2
    def self.random_between(_range)
      rand((_range.max-_range.min)+1)+_range.min # 2..6 => (6-2)+1=5 => 0,1,2,3,4 => +2 => 2,3,4,5,6
    end

    # random_number_array(1..3, 5) # => [2, 3, 1, 3, 1]
    def self.random_number_array(_range, _nr)
      arr = []
      1.upto(_nr) { arr << random_between(_range) }
      return arr
    end

    # choose_from_array([1,2,3,4], 3) # => [4, 2, 3]
    def self.choose_from_array(_arr, _nr)
      arr = []
      1.upto(_nr) { arr << _arr[rand(_arr.size)] }
      return arr
    end
  end
end