* transcode.c (econv_s_stateless_encoding): new method.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19156 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 9 insertions, 0 deletions

diff --git a/test/ruby/test_econv.rb b/test/ruby/test_econv.rb
index 2e4409dbc5..c7f270c523 100644
--- a/test/ruby/test_econv.rb
+++ b/test/ruby/test_econv.rb
@@ -27,6 +27,15 @@ class TestEncodingConverter < Test::Unit::TestCase
                  ec.primitive_errinfo)
   end
 
+  def test_s_stateless_encoding
+    assert_equal(Encoding::EUC_JP, Encoding::Converter.stateless_encoding("ISO-2022-JP"))
+    assert_equal(Encoding::EUC_JP, Encoding::Converter.stateless_encoding(Encoding::ISO_2022_JP))
+    assert_nil(Encoding::Converter.stateless_encoding("EUC-JP"))
+    assert_nil(Encoding::Converter.stateless_encoding("UTF-8"))
+    assert_nil(Encoding::Converter.stateless_encoding("UTF-16BE"))
+    assert_nil(Encoding::Converter.stateless_encoding(Encoding::UTF_8))
+  end
+
   def test_new
     assert_kind_of(Encoding::Converter, Encoding::Converter.new("UTF-8", "EUC-JP"))
     assert_kind_of(Encoding::Converter, Encoding::Converter.new(Encoding::UTF_8, Encoding::EUC_JP))