public void ExecuteTransaction_AddsTransactionToListIfSuccessful_True()
{
BarcodeSystem barcodeSystem = Substitute.For <BarcodeSystem>(log);
User user = Substitute.For <User>(userArgs);
Product product = Substitute.For <Product>(productArgs);
user.Balance = 100m;
BuyTransaction successfulTransaction = barcodeSystem.BuyProduct(user, product);
Assert.That(barcodeSystem.Transactions.Contains(successfulTransaction), Is.True);
}
public void BuyProduct_PurchaseWithEnoughCredit_Succeeds()
{
BarcodeSystem barcodeSystem = Substitute.For <BarcodeSystem>(log);
User user = Substitute.For <User>(userArgs);
Product product = Substitute.For <Product>(productArgs);
user.Balance = 100m;
BuyTransaction buyTransaction = barcodeSystem.BuyProduct(user, product);
Assert.That(buyTransaction.Succeeded, Is.True);
}
public void UndoTransaction_UndoTransaction_Success()
{
const decimal productPrice = 10;
BarcodeSystem barcodeSystem = Substitute.For <BarcodeSystem>(log);
User user = Substitute.For <User>(userArgs);
Product product = Substitute.For <Product>("Milk", productPrice);
user.Balance = productPrice;
BuyTransaction transaction = barcodeSystem.BuyProduct(user, product);
barcodeSystem.UndoTransaction(transaction);
Assert.That(transaction.Undone, Is.True);
Assert.That(user.Balance, Is.EqualTo(productPrice));
}