From 60ca258a824c1d4b6a2a40ab91d9e1286914ebf3 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 13 Dec 2015 09:28:51 +0000
Subject: psych_emitter.c: check tags range

* ext/psych/psych_emitter.c (start_document): should not exceed
  tags array range.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53079 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/psych/test_emitter.rb | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'test/psych')

diff --git a/test/psych/test_emitter.rb b/test/psych/test_emitter.rb
index fe198bd1b1..b19501932b 100644
--- a/test/psych/test_emitter.rb
+++ b/test/psych/test_emitter.rb
@@ -90,5 +90,20 @@ module Psych
         @emitter.start_sequence(nil, nil, true, :foo)
       end
     end
+
+    def test_resizing_tags
+      tags = []
+      version = [1,1]
+      obj = Object.new
+      obj.instance_variable_set(:@tags, tags)
+      def obj.to_str
+        (1..10).map{|x| @tags.push(["AAAA","BBBB"])}
+        return "x"
+      end
+
+      tags.push([obj, "tag:TALOS"])
+      @emitter.start_document(version, tags, 0)
+      assert(true)
+    end
   end
 end
-- 
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