1 files changed, 10 insertions, 0 deletions
diff --git a/test/json/test_json.rb b/test/json/test_json.rb
index 7957773f23..46f000148f 100644..100755
--- a/test/json/test_json.rb
+++ b/test/json/test_json.rb
@@ -550,4 +550,14 @@ EOT
     JSON::Parser.new(source)
     assert_equal Encoding::ASCII_8BIT, source.encoding
   end if defined?(Encoding::ASCII_8BIT)
+
+  def test_error_message_encoding
+    bug10705 = '[ruby-core:67386] [Bug #10705]'
+    json = "\"\xE2\x88\x9A\"".force_encoding(Encoding::UTF_8)
+    e = assert_raise(JSON::ParserError) {
+      JSON.parse(json)
+    }
+    assert_equal(Encoding::UTF_8, e.message.encoding, bug10705)
+    assert_include(e.message, json, bug10705)
+  end if defined?(Encoding::UTF_8)
 end