1 files changed, 26 insertions, 0 deletions
diff --git a/test/psych/test_alias_and_anchor.rb b/test/psych/test_alias_and_anchor.rb
new file mode 100644
index 0000000000..74660a45b5
--- /dev/null
+++ b/test/psych/test_alias_and_anchor.rb
@@ -0,0 +1,26 @@
+require 'test/psych/helper'
+
+module Psych
+ class TestAliasAndAnchor < TestCase
+   def test_mri_compatibility
+     yaml = <<EOYAML
+---
+- &id001 !ruby/object {}
+
+- *id001
+- *id001
+EOYAML
+     result = Psych.load yaml
+     result.each {|el| assert_same(result[0], el) }
+   end
+
+   def test_anchor_alias_round_trip
+     o = Object.new
+     original = [o,o,o]
+
+     yaml = Psych.dump original
+     result = Psych.load yaml
+     result.each {|el| assert_same(result[0], el) }
+   end
+ end
+end