From 3e6fe414d80dacb88bbaf11853db03a44e5d024c Mon Sep 17 00:00:00 2001
From: normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 17 Mar 2014 01:24:06 +0000
Subject: variable.c: avoid memory leak on const redefinition

* variable.c (rb_const_set): delete existing entry on redefinition
  [Bug #9645]
* test/ruby/test_const.rb (test_redefinition): test for leak

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45350 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_const.rb | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'test/ruby')

diff --git a/test/ruby/test_const.rb b/test/ruby/test_const.rb
index dab45b7e08..c4a4d93249 100644
--- a/test/ruby/test_const.rb
+++ b/test/ruby/test_const.rb
@@ -1,5 +1,6 @@
 # -*- coding: us-ascii -*-
 require 'test/unit'
+require_relative 'envutil'
 
 class TestConst < Test::Unit::TestCase
   TEST1 = 1
@@ -54,5 +55,12 @@ class TestConst < Test::Unit::TestCase
 #{__FILE__}:#{__LINE__-1}: warning: already initialized constant #{c}::X
 #{__FILE__}:#{__LINE__-3}: warning: previous definition of X was here
 WARNING
+    code = <<-PRE
+olderr = $stderr.dup
+$stderr.reopen(File::NULL, "wb")
+350000.times { FOO = :BAR }
+$stderr.reopen(olderr)
+PRE
+    assert_no_memory_leak([], '', code, 'redefined constant')
   end
 end
-- 
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