Socrates Array padding problem

socarraypad

class Array
  def pad!(min_size, value = nil)
   if min_size <= self.length
      self
    else
      (min_size - self.length).times{|x| self.push(value)}
      self
    end
  end
  
  def pad(min_size, value = nil)
   
   if min_size <= self.length
      self.clone
    else
      (min_size - self.length).times{|x| self.push(value)}
      self.clone
    end 
    
  end
end