public void ShouldResetDisplayWhenBuying()
{
_ps.AddPayment(25);
Assert.That(_ps.ReadDisplay(), Is.EqualTo(1010));
IReceipt receipt = _ps.Buy();
Assert.That(_ps.ReadDisplay(), Is.EqualTo(1000));
Assert.That(receipt.Value(), Is.EqualTo(10));
}
public void ShouldProduceValidReceiptWhenBuying(int[] coins, int minutes)
{
foreach (var coin in coins)
{
_ps.AddPayment(coin);
}
IReceipt receipt = _ps.Buy();
Assert.That(receipt, Is.Not.Null);
Assert.That(receipt.Value(), Is.EqualTo(minutes));
}