require 'psych/helper' module Psych class TestException < TestCase class Wups < Exception attr_reader :foo, :bar def initialize *args super @foo = 1 @bar = 2 end end def setup super @wups = Wups.new end def test_convert w = Psych.load(Psych.dump(@wups)) assert_equal @wups, w assert_equal 1, w.foo assert_equal 2, w.bar end def test_to_yaml_properties class << @wups def to_yaml_properties [:@foo] end end w = Psych.load(Psych.dump(@wups)) assert_equal @wups, w assert_equal 1, w.foo assert_nil w.bar end end end