anchor.diff:          'error2:Callback called more times than expected (1).:'
           'fail2:failure:'
           'foo5'),
  -    'test returning future using Timer': buildStatusString(2, 4, 0,
  +    'test returning future using runAsync': buildStatusString(2, 4, 0,
           'successful::'
           'fail1:Expected: <false> but: was <true>.:'
           'error1:Callback called more times than expected (1).:'
  
positive.code:         var callback = expectAsync0((){});
          var excesscallback = expectAsync0((){});
          return _defer(() {
            Timer.run(() {
              guardAsync(() {
                excesscallback();
                excesscallback();
  
negative.code:         var callback = expectAsync0((){});
          var excesscallback = expectAsync0((){});
          return _defer(() {
            runAsync(() {
              guardAsync(() {
                excesscallback();
                excesscallback();
  