From 76c02f05a27a5dfaac3e7b8fe4865212c57cfd13 Mon Sep 17 00:00:00 2001
From: akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 12 Sep 2008 17:58:58 +0000
Subject: * io.c (validate_enc_binmode): extracted from rb_io_extract_modeenc. 
  (rb_io_extract_modeenc): use validate_enc_binmode.   (io_encoding_set): call
 validate_enc_binmode.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19313 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_io_m17n.rb | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'test/ruby/test_io_m17n.rb')

diff --git a/test/ruby/test_io_m17n.rb b/test/ruby/test_io_m17n.rb
index 85401d6aaf..087f8c4483 100644
--- a/test/ruby/test_io_m17n.rb
+++ b/test/ruby/test_io_m17n.rb
@@ -807,6 +807,24 @@ EOT
     }
   end
 
+  def test_set_encoding_binmode
+    assert_raise(ArgumentError) {
+      open("/dev/null", "rt") {|f|
+        f.set_encoding("iso-2022-jp")
+      }
+    }
+    assert_raise(ArgumentError) {
+      open("/dev/null", "r") {|f|
+        f.set_encoding("iso-2022-jp")
+      }
+    }
+    assert_nothing_raised {
+      open("/dev/null", "rb") {|f|
+        f.set_encoding("iso-2022-jp")
+      }
+    }
+  end
+
   def test_write_conversion_fixenc
     with_pipe {|r, w|
       w.set_encoding("iso-2022-jp:utf-8")
-- 
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