From b01bf0f960ef4a00155dd383adeb1fc031ae6940 Mon Sep 17 00:00:00 2001
From: Aaron Patterson <aaron.patterson@gmail.com>
Date: Sat, 28 Apr 2012 15:24:25 -0700
Subject: add a test for ast roundtripping

---
 test/psych/test_parser.rb | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'test')

diff --git a/test/psych/test_parser.rb b/test/psych/test_parser.rb
index d8c53f2..acbdd96 100644
--- a/test/psych/test_parser.rb
+++ b/test/psych/test_parser.rb
@@ -32,6 +32,13 @@ module Psych
       @handler.parser = @parser
     end
 
+    def test_ast_roundtrip
+      parser = Psych.parser
+      parser.parse('null')
+      ast = parser.handler.root
+      assert_match(/^null/, ast.yaml)
+    end
+
     def test_exception_memory_leak
       yaml = <<-eoyaml
 %YAML 1.1
-- 
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