anchor.diff:    }
   
     Future<Null> onDriverPageRequested() async {
  -    await Process.run("/usr/bin/osascript",
  -        ['-e', 'tell application "Safari" to activate']);
  +    await Process.run(
  +        "/usr/bin/osascript", ['-e', 'tell application "Safari" to activate']);
     }
   
     String toString() => "Safari";
  
positive.code:     if (_currentStartingBrowserId == id) _currentStartingBrowserId = null;
    }
  
    BrowserTestRunner(
        Map configuration,
        String localIp,
        String browserName,
        this.maxNumBrowsers)
        : configuration = configuration,
          localIp = localIp,
          browserName = (browserName == 'ff') ? 'firefox' : browserName,
          checkedMode = configuration['checked'],
          testingServer = new BrowserTestingServer(
              configuration, localIp,
              Browser.requiresIframe(browserName),
              Browser.requiresFocus(browserName)) {
      testingServer.testRunner = this;
  
negative.code:         print(error);
        });
      }
  
      void errorHandler(e) {
        if (!underTermination) print("Error occured in httpserver: $e");
      }
  
      errorReportingServer.listen(errorReportingHandler, onError: errorHandler);
    }
  
  