* ext/psych/lib/psych/visitors/yaml_tree.rb: register time objects so

  they are referenced as ids during output.
* test/psych/test_date_time.rb: corresponding test.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41804 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 8 insertions, 0 deletions

diff --git a/test/psych/test_date_time.rb b/test/psych/test_date_time.rb
index df66d142f6..9a8e37bc67 100644
--- a/test/psych/test_date_time.rb
+++ b/test/psych/test_date_time.rb
@@ -13,5 +13,13 @@ module Psych
       dt = DateTime.now
       assert_cycle dt
     end
+
+    def test_alias_with_time
+      t    = Time.now
+      h    = {:a => t, :b => t}
+      yaml = Psych.dump h
+      assert_match('&', yaml)
+      assert_match('*', yaml)
+    end
   end
 end