anchor.diff:    static BuiltSet<TestEnum> get values => _$values;
     static TestEnum valueOf(String name) => _$valueOf(name);
   }
  -''',
  -          r'''// GENERATED CODE - DO NOT MODIFY BY HAND
  -
  +'''), endsWith(r'''
   part of test_enum;
   
   // **************************************************************************
  
positive.code: ''';
  
  final String correctOutput = r'''
  // GENERATED CODE - DO NOT MODIFY BY HAND
  
  part of test_enum;
  
  // **************************************************************************
  
negative.code: 
  final BuiltSet<TestEnum> _$vls =
      new BuiltSet<TestEnum>(const [_$yes, _$no, _$maybe,]);
  '''));
      });
  
      test('fails with error on name clash for field rhs', () async {
        expect(await generate(r'''
  library test_enum;
  
  import 'package:enum_class/enum_class.dart';
  