# frozen_string_literal: true

module Validator
  VALUE_FORMAT = /^[1-6]{4}$/.freeze

  def check_emptyness(value)
    value.empty?
  end

  def check_length(value, min_size, max_size)
    value.size.between?(min_size, max_size)
  end

  def check_command_range(command)
    command =~ VALUE_FORMAT
  end
end