public async Task AddTest()
 {
     var fakeRepository = Mock.Of <IPostRepository>();
     var PostService    = new PostService(fakeRepository);
     var Post           = new Post()
     {
         Id = 1, Description = "This is my description", CreatedAt = DateTime.Parse("2019-05-05"), ProfileId = 1
     };
     await PostService.AddAndSafe(Post);
 }