public void Vend_WhenCoffeeOrderInTransactionHandlerAndSufficientFunds_ReturnsCoffeeOrder()
{
var coffeeOrder = CreateCoffeeOrder();
_transactionHandler.AddCoffeeOrder(coffeeOrder);
_transactionHandler.AddFunds(Denomination.Twenty);
var vendedCoffeeOrder = _transactionHandler.Vend();
Assert.AreEqual(coffeeOrder, vendedCoffeeOrder);
}
private void btnVend_Click(object sender, EventArgs e)
{
try
{
var coffeeOrder = _transactionHandler.Vend();
UpdateCurrentPayment();
UpdateOrder();
SetStatus();
MessageBox.Show(coffeeOrder.ToString(), "Here's your coffee! :)");
}
catch (InsufficientFundsException ex)
{
SetStatus(ex.Message);
}
catch (InvalidOperationException ex)
{
SetStatus(ex.Message);
}
}