public void IfProductDoesNotExistShouldReturnErrorResult()
{
var nonExistentProduct = new NonExistentProduct();
AssumeProductDoesNotExist(nonExistentProduct);
var error = WhenCommandIsHandled <ProductDoesNotExistError>(new AddItemCommand(Guid.NewGuid(),
nonExistentProduct.ProductId));
Assert.NotNull(error);
}
private void AssumeProductDoesNotExist(NonExistentProduct nonExistentProduct)
{
productApiStub
.Setup(x => x.GetProduct(nonExistentProduct.ProductId))
.Returns((Apis.ProductInfo)null);
}