From be007d6eae988b657f639446ba6ff2bf0ddefa72 Mon Sep 17 00:00:00 2001
From: yugui <yugui@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 28 Jan 2011 02:25:35 +0000
Subject: merges r30641 from trunk into ruby_1_9_2. -- * error.c
 (rb_invalid_str): prevent intermediate variable from GC.   [ruby-core:34820]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@30692 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_float.rb | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'test')

diff --git a/test/ruby/test_float.rb b/test/ruby/test_float.rb
index fffa96e313..b465814140 100644
--- a/test/ruby/test_float.rb
+++ b/test/ruby/test_float.rb
@@ -442,6 +442,18 @@ class TestFloat < Test::Unit::TestCase
     assert(Float(o).nan?)
   end
 
+  def test_invalid_str
+    bug4310 = '[ruby-core:34820]'
+    assert_raise(ArgumentError, bug4310) {
+      stress, GC.stress = GC.stress, true
+      begin
+        Float('a'*10000)
+      ensure
+        GC.stress = stress
+      end
+    }
+  end
+
   def test_num2dbl
     assert_raise(TypeError) do
       1.0.step(2.0, "0.5") {}
-- 
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