anchor.diff:            print(line);
           }
           print('');
  +
  +        print(_buildSummaryEnd(_failedTests));
         }
       }
     }
  
positive.code:       }
        print('');
      }
      super.allDone();
    }
  }
  
negative.code:     output.add('$message: $c');
    }
    return output;
  }
  
  String _buildSummaryEnd(int failedTests) {
      if (failedTests == 0) {
        return '\n===\n=== All tests succeeded\n===\n';
      } else {
        var pluralSuffix = failedTests != 1 ? 's' : '';
        return '\n===\n=== ${failedTests} test$pluralSuffix failed\n===\n';
      }
  }
  
  
  