anchor.diff:      test('analyze Dart', () async {
         final request = proto.SourceRequest()..source = sampleCode;
         final response =
  -          await _sendPostRequest('dartservices/v2/analyze', request);
  +          await sendPostRequest('dartservices/v2/analyze', request);
         expect(response.statusCode, 200);
         final data = json.decode(await response.transform(utf8.decoder).join());
         final reply = proto.AnalysisResults()..mergeFromProto3Json(data);
  
positive.code: 
      test('format bad code', () async {
        final request = proto.SourceRequest()..source = formatBadCode;
        final response =
            await _sendPostRequest('dartservices/v2/format', request);
        expect(response.statusCode, 200);
        final data = json.decode(await response.transform(utf8.decoder).join());
        final reply = proto.FormatResponse()..mergeFromProto3Json(data);
  
negative.code: }
  '''
          ..offset = 67;
        final response = await sendPostRequest('dartservices/v2/fixes', request);
        expect(response.statusCode, 200);
        final data = json.decode(await response.transform(utf8.decoder).join());
        final reply = proto.FixesResponse()..mergeFromProto3Json(data);
  