public void MissingCart()
{
var cartId = new CartId("missing-cart");
var storage = new SpyStorage();
App.ApplyDiscount(cartId, storage);
Assert.Null(storage.Saved);
}
public void NoDiscount()
{
var cartId = new CartId("some-normal-cart");
var storage = new SpyStorage();
App.ApplyDiscount(cartId, storage);
Assert.Null(storage.Saved);
}
public void HappyPath()
{
var cartId = new CartId("some-gold-cart");
var storage = new SpyStorage();
App.ApplyDiscount(cartId, storage);
var expected = new Cart(new CartId("some-gold-cart"), new CustomerId("gold-customer"), new Amount(50));
Assert.Equal(expected, storage.Saved);
}