public void WhenCoinsAreInsertedAndReturnCoinsIsSelectedThenCoinValueGoesToCoinReturn()
{
vendingService.AcceptCoin("nickel");
vendingService.AcceptCoin("dime");
Assert.That(vendingService.GetDisplay(), Is.EqualTo("£0.15"));
vendingService.ReturnCoins();
Assert.That(vendingService.GetDisplay(), Is.EqualTo("INSERT COIN"));
var expectedCoins = new[] { "nickel", "dime" };
Assert.That(vendingService.EmptyCoinReturn(), Is.EquivalentTo(expectedCoins));
}
public void CustomerIsAbleToReturnCoinsAfterSelectingSoldOutProduct()
{
var vendingService = new VendingService();
vendingService.AddStock(Item.Pepsi);
vendingService.AcceptCoin("quarter");
vendingService.AcceptCoin("quarter");
vendingService.AcceptCoin("quarter");
vendingService.AcceptCoin("quarter");
Assert.That(vendingService.GetDisplay(), Is.EqualTo("£1.00"));
vendingService.SelectProduct(Item.Coke);
Assert.That(vendingService.GetDisplay(), Is.EqualTo("SOLD OUT"));
Assert.That(vendingService.GetDisplay(), Is.EqualTo("£1.00"));
vendingService.ReturnCoins();
Assert.That(vendingService.EmptyCoinReturn(), Is.EquivalentTo(new[] { "quarter", "quarter", "quarter", "quarter" }));
}