public void UpdateTitle_WHEN_sets_Title_Property_To_Trimmed_Text_Of_newTitle_parameter()
        {
            const string NewTitle = "New Title  ";

            var imageReference = GetImageReference();
            var post = new BlogPost("ABC", "description", "fullText", imageReference, DateTime.Now, new BlogUser());

            post.UpdateTitle(NewTitle);

            post.Title.ShouldEqual(NewTitle.Trim());
        }
        public void UpdateTitle_WHEN_newTitle_parameter_is_null_THEN_Throws_StringArgumentNullOrEmptyException()
        {
            var imageReference = GetImageReference();
            var post = new BlogPost("ABC", "description", "fullText", imageReference, DateTime.Now, new BlogUser());

            post.UpdateTitle(null);
        }