merges a part of r30931 from trunk into ruby_1_9_2.

--
* ext/psych/lib/psych/json/stream.rb: do not emit custom tags in maps
  or sequences when emitting JSON.
* ext/psych/lib/psych/json/tree_builder.rb: do not emit custom tags in
  sequences when emitting JSON.
* test/psych/json/test_stream.rb: tests for custom stream emits.
* test/psych/test_json_tree.rb: tests for JSON emits.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@31767 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 11 insertions, 0 deletions

diff --git a/test/psych/test_json_tree.rb b/test/psych/test_json_tree.rb
index 96e17be961..590482c0bb 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)