1 files changed, 19 insertions, 0 deletions
diff --git a/test/ruby/test_exception.rb b/test/ruby/test_exception.rb
index 18b0d6f725..107d80b1a4 100644
--- a/test/ruby/test_exception.rb
+++ b/test/ruby/test_exception.rb
@@ -224,6 +224,25 @@ class TestException < Test::Unit::TestCase
     assert_raise(ArgumentError) { raise 1, 1, 1, 1 }
   end
 
+  def test_type_error_message_encoding
+    c = eval("Module.new do break class C\u{4032}; self; end; end")
+    o = c.new
+    e = assert_raise(TypeError) do
+      ""[o]
+    end
+    assert_match(/C\u{4032}/, e.message)
+    c.class_eval {def to_int; self; end}
+    e = assert_raise(TypeError) do
+      ""[o]
+    end
+    assert_match(/C\u{4032}/, e.message)
+    c.class_eval {def to_a; self; end}
+    assert_raise(TypeError) do
+      [*o]
+    end
+    assert_match(/C\u{4032}/, e.message)
+  end
+
   def test_errat
     assert_in_out_err([], "p $@", %w(nil), [])