anchor.diff:    }
   
     @override
  -  Future increment(String name, {int increment: 1}) {
  +  Future increment(String name, {int increment : 1}) {
       counter.putIfAbsent(name, () => 0);
       return new Future.value(counter[name]++);
     }
  
positive.code:     });
  
      test('compile negative-test noSource', () async {
        var json = {};
        var response = await _sendPostRequest('dartservices/v1/compile', json);
        expect(response.status, 400);
      });
  
      test('complete', () async {
        var json = {'source': 'void main() {print("foo");}', 'offset': 1};
  
negative.code: 
  import 'src/test_config.dart';
  
  String quickFixesCode =
  r'''
  import 'dart:async';
  void main() {
    int i = 0;
  }
  ''';
  
  String preFormattedCode =
  r'''
  void main()
  {
  int i = 0;
  }
  ''';
  
  String postFormattedCode =
  r'''
  void main() {
    int i = 0;
  }
  