From 23f0e341af6bca062b95fa9bc69b2fa59f903e05 Mon Sep 17 00:00:00 2001
From: akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 24 Dec 2007 10:27:53 +0000
Subject: add tests.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@14600 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_io_m17n.rb | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

(limited to 'test')

diff --git a/test/ruby/test_io_m17n.rb b/test/ruby/test_io_m17n.rb
index 1087d182ae..6bc9025f1a 100644
--- a/test/ruby/test_io_m17n.rb
+++ b/test/ruby/test_io_m17n.rb
@@ -48,7 +48,17 @@ EOT
     with_tmpdir {
       generate_file('tmp', "")
       open("tmp", "r") {|f|
-        assert_equal(nil, f.external_encoding)
+        assert_equal(Encoding.default_external, f.external_encoding)
+        assert_equal(nil, f.internal_encoding)
+      }
+    }
+  end
+
+  def test_open_rb
+    with_tmpdir {
+      generate_file('tmp', "")
+      open("tmp", "rb") {|f|
+        assert_equal(Encoding::ASCII_8BIT, f.external_encoding)
         assert_equal(nil, f.internal_encoding)
       }
     }
@@ -83,6 +93,15 @@ EOT
     }
   end
 
+  def test_open_wb
+    with_tmpdir {
+      open("tmp", "wb") {|f|
+        assert_equal(nil, f.external_encoding)
+        assert_equal(nil, f.internal_encoding)
+      }
+    }
+  end
+
   def test_open_w_enc
     with_tmpdir {
       open("tmp", "w:euc-jp") {|f|
-- 
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