preserve encodings in error messages

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51962 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 0 deletions

diff --git a/test/ruby/test_array.rb b/test/ruby/test_array.rb
index ea551dbeba..74da8c1dab 100644
--- a/test/ruby/test_array.rb
+++ b/test/ruby/test_array.rb
@@ -1543,6 +1543,8 @@ class TestArray < Test::Unit::TestCase
       [[:first_one, :ok], :not_ok].to_h
     }
     assert_equal "wrong element type Symbol at 1 (expected array)", e.message
+    array = [eval("class C\u{1f5ff}; self; end").new]
+    assert_raise_with_message(TypeError, /C\u{1f5ff}/) {array.to_h}
     e = assert_raise(ArgumentError) {
       [[:first_one, :ok], [1, 2], [:not_ok]].to_h
     }