public async void Edit_ReturnsANotFoundResult(int?organizerId)
        {
            //Arrange
            OrganizersController organizersController = new OrganizersController(context);

            //Act
            var result = await organizersController.Edit(organizerId);

            //Assert
            Assert.IsType <NotFoundResult>(result);
        }
        public async void Edit_Post_RedirectToActionResult()
        {
            //Arrange
            OrganizersController organizersController = new OrganizersController(context);

            //Act
            var result = await organizersController.Edit(1, context.Organizer.First());

            //Assert
            Assert.IsType <RedirectToActionResult>(result);
        }
        public async void Edit_ReturnsAViewResult()
        {
            //Arrange
            OrganizersController organizersController = new OrganizersController(context);

            //Act
            var result = await organizersController.Edit(1);

            //Assert
            Assert.IsType <ViewResult>(result);
        }
        public async void Edit_Post_ReturnsANotFoundEventResult()
        {
            //Arrange
            OrganizersController organizersController = new OrganizersController(context);
            //Act
            var result = await organizersController.Edit(2, new Organizer()
            {
                Id = 2
            });

            //Assert
            Assert.IsType <NotFoundResult>(result);
        }