public async Task EditeAsyncWithDublicateNameShouldThrowArgumentException() { var options = new DbContextOptionsBuilder <ApplicationDbContext>() .UseInMemoryDatabase(databaseName: Guid.NewGuid().ToString()).Options; var dbContext = new ApplicationDbContext(options); var cloudinary = new Mock <ICloudinaryService>(); var albumsRepository = new EfDeletableEntityRepository <Album>(dbContext); var albumsService = new AlbumsService(albumsRepository, cloudinary.Object); await albumsRepository.AddAsync(new Album { Name = "Primo Victoria", CoverUrl = "https://res.cloudinary.com/nikolacgeorgiev/image/upload/v1587375808/albums_photos/Primo_Victoria_xhi3ny.jpg", ReleaseDate = DateTime.ParseExact("2005-03-04", "yyyy-MM-dd", CultureInfo.InvariantCulture), GroupId = 4, }); await albumsRepository.SaveChangesAsync(); var photo = new Mock <IFormFile>(); var releaseDate = DateTime.ParseExact("2012-05-22", "yyyy-MM-dd", CultureInfo.InvariantCulture); var id = await albumsService.CreateAsync("Carolus Rex", photo.Object, releaseDate, 4); var album = new AlbumEditInputModel { Name = "Primo Victoria", CoverUrl = "https://res.cloudinary.com/nikolacgeorgiev/image/upload/v1587375808/albums_photos/Primo_Victoria_xhi3ny.jpg", ReleaseDate = DateTime.ParseExact("2005-03-04", "yyyy-MM-dd", CultureInfo.InvariantCulture), GroupId = 4, }; await Assert.ThrowsAsync <ArgumentException>(async() => { await albumsService.EditAsync(id, album); }); }