1 files changed, 10 insertions, 0 deletions
diff --git a/lib/test/unit.rb b/lib/test/unit.rb
index fddc994e6..14ddc08f2 100644
--- a/lib/test/unit.rb
+++ b/lib/test/unit.rb
@@ -102,6 +102,16 @@ module Test
               exp_comment = " (nsec=#{exp.nsec})"
               act_comment = " (nsec=#{act.nsec})"
             end
+          elsif !Encoding.compatible?(exp_str, act_str)
+            if exp.is_a?(String) && act.is_a?(String)
+              exp_str = exp.dump
+              act_str = act.dump
+              exp_comment = " (#{exp.encoding})"
+              act_comment = " (#{act.encoding})"
+            else
+              exp_str = exp_str.dump
+              act_str = act_str.dump
+            end
           end
           "<#{exp_str}>#{exp_comment} expected but was\n<#{act_str}>#{act_comment}"
         }