From d8d9bac5c8b071135e50ad3f21c8a9b6a9c06e54 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 5 Jan 2011 20:14:43 +0000
Subject: * ext/stringio/stringio.c (get_strio, strio_set_string)  
 (strio_reopen): check if frozen.  [ruby-core:33648]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30467 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/stringio/test_stringio.rb | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'test/stringio')

diff --git a/test/stringio/test_stringio.rb b/test/stringio/test_stringio.rb
index b7327adced..78718a2d86 100644
--- a/test/stringio/test_stringio.rb
+++ b/test/stringio/test_stringio.rb
@@ -471,4 +471,13 @@ class TestStringIO < Test::Unit::TestCase
       expected_pos += 1
     end
   end
+
+  def test_frozen
+    s = StringIO.new
+    s.freeze
+    bug = '[ruby-core:33648]'
+    assert_raise(RuntimeError, bug) {s.puts("foo")}
+    assert_raise(RuntimeError, bug) {s.string = "foo"}
+    assert_raise(RuntimeError, bug) {s.reopen("")}
+  end
 end
-- 
cgit v1.2.3