curso backend profesional mejorando.la: reto 2 ruby on rails

gistfile1.rb

class Dessert
  attr_accessor :name, :size, :calories
  
  def initialize(name, size, calories)
    @name = name
    @size = size
    @calories = calories
    
    @@instance_count += 1
  end
  
  def healthy?
    @calories < 200
  end
  
  def delicious?
    true
  end
  
  def self.count
    @@instance_count
  end
end

class JellyBean < Dessert
  attr_accessor :flavor
  
  def initialize(name, size, calories, flavor)
    super(name, size, calories)
    @flavor = flavor
  end
  
  def delicious?
    return false if @flavor == "black licorice"
    super()
  end
end