class Shoulda::Matchers::ActiveModel::ValidateComparisonOfMatcher

def simple_description
  String.new.tap do |description|
    description << "validate that :#{attribute} looks like "
    description << Shoulda::Matchers::Util.a_or_an(allowed_type_name)
    if comparison_descriptions.present?
      description << " #{comparison_descriptions}"
    end
  end
end