public void ItGetsAllAvailableItems()
{
//Arrage
//Act
_checkoutFactory.Setup(x => x.CreateCheckout()).Returns(Mock.Of <List <IItemPriceRule> >);
_repo.Setup(x => x.DisplayAvailableItems()).Returns(Mock.Of <List <ProductDto> >);
_checkout = new Service.Checkout(_checkoutFactory.Object, _repo.Object);
var results = _checkout.DisplayAvailableItems();
//Assert
Assert.IsNotNull(results);
Assert.IsInstanceOfType(results, typeof(List <Product>));
}
