* ext/psych/lib/psych/visitors/yaml_tree.rb: tree should return the

  same thing on every call.

* test/psych/visitors/test_yaml_tree.rb: related test.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37350 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,10 @@
+Sun Oct 28 10:12:15 2012  Aaron Patterson <[email protected]>
+
+	* ext/psych/lib/psych/visitors/yaml_tree.rb: `tree` should return the
+	  same thing on every call.
+
+	* test/psych/visitors/test_yaml_tree.rb: related test.
+
 Sun Oct 28 10:05:03 2012  Aaron Patterson <[email protected]>
 
 	* ext/psych/lib/psych/visitors/yaml_tree.rb: YAML Tree object should

ext/psych/lib/psych/visitors/yaml_tree.rb

@@ -47,6 +47,7 @@ def finish
 
       def tree
         finish unless finished?
+        @emitter.root
       end
 
       def push object

test/psych/visitors/test_yaml_tree.rb

@@ -8,6 +8,13 @@ def setup
         @v = Visitors::YAMLTree.new
       end
 
+      def test_tree_can_be_called_twice
+        @v.start
+        @v << Object.new
+        t = @v.tree
+        assert_equal t, @v.tree
+      end
+
       def test_yaml_tree_can_take_an_emitter
         io = StringIO.new
         e  = Psych::Emitter.new io