anchor.diff:  }
   """);
             inputStreamController.add('recompile ${file.path} abc\n'
  -                  '${file.path}\n'
  +                  '${file.uri}\n'
                     'abc\n'
                 .codeUnits);
           } else if (count == 4) {
  
positive.code: 
            file.writeAsStringSync("import 'lib.dart'; main() => foo();\n");
            inputStreamController.add('recompile ${file.path} abc\n'
                    '${file.path}\n'
                    'abc\n'
                .codeUnits);
  
  
negative.code:             inputStreamController.add('reset\n'.codeUnits);
  
              inputStreamController.add('recompile ${fileB.path} abc\n'
                      '${fileB.uri}\n'
                      'abc\n'
                  .codeUnits);
              break;
  