private void CreateCommentTest(StringBuilder sb, int num)
        {
            sb.Append($"{num}) CreateCommentTest : ");
            StepFinished?.Invoke(sb.ToString());

            // Load last created post
            var getPosts = new PostsModel(PostType.New)
            {
                Login = _user.Login
            };

            var postsResp = _api.GetPosts(getPosts, CancellationToken.None)
                            .Result;

            if (!postsResp.IsSuccess)
            {
                sb.AppendLine($"fail. Reason:{Environment.NewLine} {postsResp.Error.Message}");
                return;
            }
            if (postsResp.Result.Results.Count == 0)
            {
                sb.AppendLine("fail. Reason:{Environment.NewLine} There are no Posts!");
                return;
            }

            var testPost = postsResp.Result.Results.First();
            var req      = new CreateOrEditCommentModel(_user, testPost, "Hi, I am a bot for testing Ditch api, please ignore this comment.", _appInfo);
            var rez      = _api.CreateOrEditComment(req, CancellationToken.None)
                           .Result;

            if (!UrlHelper.TryCastUrlToAuthorAndPermlink(testPost.Url, out var parentAuthor, out var parentPermlink))
            {
                sb.AppendLine($"fail. Reason:{Environment.NewLine} url to permlink cast.");
                return;
            }

            var permlink = OperationHelper.CreateReplyPermlink(_user.Login, parentAuthor, parentPermlink);

            if (!rez.IsSuccess)
            {
                sb.AppendLine($"fail. Reason:{Environment.NewLine} {rez.Error.Message}");
                return;
            }

            Task.Delay(10000);

            var getComm = new NamedInfoModel(testPost.Url)
            {
                Offset = permlink, Limit = 1
            };
            var verifyPostresp = _api.GetComments(getComm, CancellationToken.None)
                                 .Result;

            if (!verifyPostresp.IsSuccess)
            {
                sb.AppendLine($"fail. Reason:{Environment.NewLine} {verifyPostresp.Error.Message}");
                return;
            }
            if (verifyPostresp.Result.Results.Count != 1)
            {
                sb.AppendLine($"fail. Reason:{Environment.NewLine} Comment ({permlink}) not found!");
                return;
            }

            sb.AppendLine("pass.");
        }