- add regression tests for U+6E7F (湿) in ISO-2022-JP

  In ISO-2022-JP, the bytes use to code are the same as those for "<>".
  This adds regression tests to make sure that these bytes, when representing
  湿, are NOT　escaped with encode("ISO-2022-JP, xml: :text) or similar.
  These are additional regression tests for #12052.

1 files changed, 3 insertions, 0 deletions

diff --git a/test/ruby/test_transcode.rb b/test/ruby/test_transcode.rb
index 17384fd0c7..c8b0034e06 100644
--- a/test/ruby/test_transcode.rb
+++ b/test/ruby/test_transcode.rb
@@ -143,6 +143,9 @@ class TestTranscode < Test::Unit::TestCase
         assert_equal('"&lt;&quot;&gt;"', escaped.encode('UTF-8'), "failed encoding #{src_enc} to #{dst_enc} with xml: :attr")
       end
     end
+    # regression test; U+6E7F (湿) uses the same bytes in ISO-2022-JP as "<>"
+    assert_equal(  "&lt;&gt;\u6E7F",   "<>\u6E7F".encode("ISO-2022-JP").encode("ISO-2022-JP", :xml=>:text).encode("UTF-8"))
+    assert_equal("\"&lt;&gt;\u6E7F\"", "<>\u6E7F".encode("ISO-2022-JP").encode("ISO-2022-JP", :xml=>:attr).encode("UTF-8"))
   end
 
   def test_ascii_range