anchor.diff:                    ),
                   ),
                 ),
  -            if (failure != null)
  +            if (isNotEmpty(failureMessage))
                 Padding(
                   padding: const EdgeInsets.only(
                     top: 4,
                     bottom: 4,
                   ),
                   child: Text(
  -                  FailureMapperHelper.mapFailureToMessage(failure),
  +                  failureMessage,
                     style: TextStyle(
                       color: Colors.grey,
                       fontSize: 16,
                     ),
                   ),
                 ),
  -            if (failure != null)
  +            if (isNotEmpty(failureSuggestion))
                 Padding(
                   padding: const EdgeInsets.only(
                     top: 4,
                     bottom: 4,
                   ),
                   child: Text(
  -                  FailureMapperHelper.mapFailureToSuggestion(failure),
  +                  failureSuggestion,
                     textAlign: TextAlign.center,
                     style: TextStyle(
                       color: Colors.grey,
  
positive.code: import 'package:flutter/material.dart';
  import 'package:flutter_bloc/flutter_bloc.dart';
  import 'package:flutter_slidable/flutter_slidable.dart';
  
  import '../../../../core/error/failure.dart';
  import '../../../../core/helpers/color_palette_helper.dart';
  
negative.code: 
    @override
    Widget build(BuildContext context) {
      final String failureMessage =
          FailureMapperHelper.mapFailureToMessage(failure);
      final String failureSuggestion =
          FailureMapperHelper.mapFailureToSuggestion(failure);
  
      return Container(
        margin: const EdgeInsets.all(4),
        height: 135,
  