public void Delete_DeletesCheckoutFromDatabase() { DateTime dueDate = new DateTime(2017, 1, 1); Checkout newCheckout = new Checkout(1, 2, dueDate); newCheckout.Save(); newCheckout.Delete(); List <Checkout> expectedResult = new List <Checkout> { }; List <Checkout> actualResult = Checkout.GetAll(); Assert.Equal(expectedResult, actualResult); }