From d24f4c0fe3594a1e2fef7cfbef521d71cb4f0abf Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 4 Sep 2009 21:29:29 +0000
Subject: * io.c (rb_io_binmode): check if closed regardless platforms.  
 [ruby-core:25363]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@24751 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_io.rb | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'test/ruby')

diff --git a/test/ruby/test_io.rb b/test/ruby/test_io.rb
index 6e69f14437..7137b5f772 100644
--- a/test/ruby/test_io.rb
+++ b/test/ruby/test_io.rb
@@ -1,5 +1,6 @@
 require 'test/unit'
 require 'tmpdir'
+require 'tempfile'
 
 class TestIO < Test::Unit::TestCase
   def mkcdtmpdir
@@ -17,4 +18,20 @@ class TestIO < Test::Unit::TestCase
     assert_equal("\377", r.gets("\377"), "[ruby-dev:24460]")
     r.close
   end
+
+  def make_tempfile
+    t = Tempfile.new("foo")
+    t.binmode
+    t.puts "foo"
+    t.puts "bar"
+    t.puts "baz"
+    t.close
+    t
+  end
+
+  def test_binmode_after_closed
+    t = make_tempfile
+    t.close
+    assert_raise(IOError) {t.binmode}
+  end
 end
-- 
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