1 files changed, 0 insertions, 9 deletions
diff --git a/test/ruby/test_io_m17n.rb b/test/ruby/test_io_m17n.rb
index e007712db5..585e5aeadd 100644
--- a/test/ruby/test_io_m17n.rb
+++ b/test/ruby/test_io_m17n.rb
@@ -120,15 +120,6 @@ EOT
     }
   end
 
-  def test_open_w_enc
-    with_tmpdir {
-      open("tmp", "w:euc-jp") {|f|
-        assert_equal(Encoding::EUC_JP, f.external_encoding)
-        assert_equal(nil, f.internal_encoding)
-      }
-    }
-  end
-
   def test_stdin
     assert_equal(Encoding.default_external, STDIN.external_encoding)
     assert_equal(nil, STDIN.internal_encoding)