public void ADD_ShouldReturnActorAdded() { //Arrange int x = 5; var actor = new Actor() { ActorId = x, FirstName = "Mark", LastName = "Walhberg", Age = 44, Gender = 'M', Rating = "8.5/10" }; var options = new DbContextOptionsBuilder <CinemaDbContext>() .UseInMemoryDatabase(databaseName: "ADD_ShouldReturnActorAdded") .UseQueryTrackingBehavior(QueryTrackingBehavior.NoTracking) .Options; var context = new CinemaDbContext(options); SeedActors(context); var service = new ActorService(context); //Act var result = service.Add(actor); //Assert Assert.Equal(result.ActorId, actor.ActorId); }