class ActiveModel::Validations::LengthValidator
def check_validity!
def check_validity! keys = CHECKS.keys & options.keys if keys.empty? raise ArgumentError, "Range unspecified. Specify the :in, :within, :maximum, :minimum, or :is option." end keys.each do |key| value = options[key] unless (value.is_a?(Integer) && value >= 0) || value == Float::INFINITY raise ArgumentError, ":#{key} must be a nonnegative Integer or Infinity" end end end