public void Post() { // Arrange CarAdvertController controller = new CarAdvertController(); controller.DummyAdvertList = TestAdvertList.ToList(); // Act CarAdvertViewModel newAdvert = new CarAdvertViewModel(7); controller.PostAdvert(newAdvert); IEnumerable <CarAdvertViewModel> result = controller.GetAll(); // Assert Assert.AreEqual(7, result.Count()); Assert.AreEqual(newAdvert.Title, result.ElementAt(6).Title); }