1 files changed, 11 insertions, 0 deletions
diff --git a/test/psych/test_json_tree.rb b/test/psych/test_json_tree.rb
index 423a528b81..b694560367 100644
--- a/test/psych/test_json_tree.rb
+++ b/test/psych/test_json_tree.rb
@@ -31,6 +31,17 @@ module Psych
       assert_match(/['"]two['"]/, json)
     end
 
+    class Bar
+      def encode_with coder
+        coder.represent_seq 'omg', %w{ a b c }
+      end
+    end
+
+    def test_json_list_dump_exclude_tag
+      json = Psych.to_json Bar.new
+      refute_match('omg', json)
+    end
+
     def test_list_to_json
       list = %w{ one two }
       json = Psych.to_json(list)