public void SelectNonExistentProductFail()
{
var state = new ReadyToSellProduct(
_wallet,
_inventory,
_pricesProvider,
new VMachine(_wallet, _inventory, _pricesProvider,
_changeCalculator
)
);
Assert.Throws <ProductNotAvailableException>(
() => state.SelectProduct(Product.Juice)
);
Assert.True(state.VendingMachine.State is ReadyToSellProduct);
}
public void SelectProductAndChangeStateSuccess()
{
var state = new ReadyToSellProduct(
_wallet,
_inventory,
_pricesProvider,
new VMachine(_wallet, _inventory, _pricesProvider,
_changeCalculator
)
);
state.SelectProduct(Product.Espresso);
Assert.Equal(Product.Espresso,
state.SelectedProduct
);
Assert.True(state.VendingMachine.State is ReadyToAcceptCoins);
}