anchor.diff:          fun() ->
                   receive
                       ActualMessage ->
  -                        ?ct_fail("expected no message but got \"~w\"~n", [ActualMessage])
  +                        ?ct_fail("expected no message but got \"~.0p\"~n", [ActualMessage])
                   after
                       Timeout -> ok
                   end
  
positive.code:                                     after
                                          0 -> no_message
                                      end,
                                  ?ct_fail("expected message ~s but got \"~w\"~n", [??MsgPattern, ActualMessage])
                          end
                      MsgPattern -> ok
                  after
  
negative.code:                     Any -> 
                          ct:pal("Failed: Stacktrace ~p~n",
                                 [util:get_stacktrace()]),
                          ?ct_fail("~s evaluated to \"~.0p\"; exception "
                                 "~s:~s was expected~n",
                                 [??Cmd, Any, ??ExceptionType, ??ExceptionPattern])
                  catch
  