public async void can_dismiss_notification() { var options = new DbContextOptionsBuilder <DatabaseContext>().UseInMemoryDatabase(databaseName: "NotificationTest1").Options; string userId = "1"; using (var context = new DatabaseContext(options)) { // Act var controller = new NotificationsController(context); AddUserClaim(controller, userId); context.Users.Add(new User() { FacebookId = userId }); context.Notifications.Add(new Notification() { ReceiverId = "1", MessageType = 1, Id = 1, EventId = 1 }); context.Notifications.Add(new Notification() { ReceiverId = "1", MessageType = 1, Id = 2, EventId = 1 }); context.Notifications.Add(new Notification() { ReceiverId = "2", MessageType = 1, Id = 3, EventId = 2 }); context.SaveChanges(); Assert.Equal(3, context.Notifications.Count()); Assert.False(context.Notifications.Where(n => n.Id == 1).Single().IsDismissed); await controller.DismissNotification(1); // Assert Assert.Equal(3, context.Notifications.Count()); Assert.True(context.Notifications.Where(n => n.Id == 1).Single().IsDismissed); } }