public void Edit_ChangesProperties() { // Arrange var context = this.ServiceProvider.GetRequiredService <WmipDbContext>(); var album = new Album { Id = 1, AlbumCoverLink = "first", Genre = "first", Name = "first", ReleaseDate = DateTime.Now.AddDays(-1), ReleaseStage = ReleaseStage.Secret, SpotifyLink = "first", AlbumsSongs = new List <AlbumSong>() { new AlbumSong { SongId = 1 } } }; context.Albums.Add(album); context.SaveChanges(); var albumsService = new AlbumsService(context); var editInfo = new EditAlbumDto() { Id = 1, AlbumCoverLink = "newlink", Genre = "newgenre", Name = "newname", ReleaseDate = DateTime.Now.AddDays(1), ReleaseStage = ReleaseStage.Announced, SpotifyLink = "newSLink", SelectedSongIds = new int[] { 1, 2, 3, 4, 5, 6, 7 } }; // Act albumsService.Edit(editInfo); //Assert Assert.Equal(editInfo.Name, context.Albums.First().Name); Assert.Equal(editInfo.AlbumCoverLink, context.Albums.First().AlbumCoverLink); Assert.Equal(editInfo.Genre, context.Albums.First().Genre); Assert.Equal(editInfo.ReleaseDate, context.Albums.First().ReleaseDate); Assert.Equal(editInfo.ReleaseStage, context.Albums.First().ReleaseStage); Assert.Equal(editInfo.SpotifyLink, context.Albums.First().SpotifyLink); Assert.Equal(editInfo.SelectedSongIds, context.Albums.First().AlbumsSongs.Select(s => s.SongId)); }