public async Task GetLikesShouldReturnLikesCount() { ApplicationDbContext db = GetDb(); var repository = new EfRepository <Like>(db); var service = new LikesService(repository); var like = new Like { CommentId = 34, UserId = "userId", }; await db.AddAsync(like); await db.SaveChangesAsync(); var count = service.GetLikes(34); Assert.Equal(1, count); }