public void TestGetProduct()
{
int productId = 1;
GetProductResponse response = new GetProductResponse();
response.Product = new ProductDTO()
{
Id = productId
};
Expect.Once.On(service).Method("GetProductById").Will(Return.Value(response));
ProductDTO product = serviceFacade.GetProductById(productId);
Assert.AreEqual(product.Id, productId);
}