From ac2683c80978dabb24ec367141427c62f1dc5a20 Mon Sep 17 00:00:00 2001
From: naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 24 Jan 2012 04:00:44 +0000
Subject: [PATCH] Additional test for r34358.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@34366 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_io_m17n.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/test/ruby/test_io_m17n.rb b/test/ruby/test_io_m17n.rb
index f1a736735c1d9b..737fae479b2735 100644
--- a/test/ruby/test_io_m17n.rb
+++ b/test/ruby/test_io_m17n.rb
@@ -1044,6 +1044,7 @@ def test_set_encoding_binmode
     }
     assert_nothing_raised {
       open(__FILE__, "r", binmode: true) {|f|
+        assert_equal(Encoding::ASCII_8BIT, f.external_encoding)
         f.set_encoding("iso-2022-jp")
       }
     }