anchor.diff:          startPaused: startPaused,
           bundlePath: _getBundlePath(finalizers, ourTestCount),
           observatoryPort: explicitObservatoryPort,
  +        serverPort: server.port,
         );
         subprocessActive = true;
         finalizers.add(() async {
  
positive.code:   }) {
      return '''
  import 'dart:convert';
  import 'dart:io'; // ignore: dart_io_import
  
  // We import this library first in order to trigger an import error for
  // package:test (rather than package:stream_channel) when the developer forgets
  
negative.code:     final Map<String, String> environment = <String, String>{
        'FLUTTER_TEST': 'true',
        'FONTCONFIG_FILE': _fontConfigFile.path,
        'SERVER_PORT': serverPort.toString(),
      };
      return processManager.start(command, environment: environment);
    }
  