public async Task SelectProduct_CompletedTransaction_ExpectPrintGratitude()
{
var product = new Product
{
Name = "Item",
Cost = 5
};
_mockPurchaseHandler.Stub(pH => pH.SelectProductAsync(Arg <Product> .Matches(p => p.Name.Equals(product.Name, StringComparison.OrdinalIgnoreCase))))
.ReturnAsync(new PurchaseResult
{
Accepted = true,
AmountDue = 3
});
await _sut.SelectProductAsync(product);
_mockVendingMachineDisplay.AssertWasCalled(d => d.PrintGratitude(), options => options.Repeat.Once());
}
