public bool WhenWinThresholdIsReached_HasWinningThresholdBeenReached_ReturnsTrue(int winnings)
{
var coinService = new CoinService();
var currentBalance = new CoinBalance(4);
var winningBalance = coinService.Accumulate(currentBalance, winnings);
return(coinService.HasWinningThresholdBeenReached(winningBalance));
}
public void GivenValidInitialBalance_WhenAccumulating_FinalBalance_IsSumOfInitialValueAndWinnings(int initial, int winnings)
{
var coinService = new CoinService();
var initialBalance = new CoinBalance(initial);
var finalBalance = coinService.Accumulate(initialBalance, winnings);
Assert.That(finalBalance, Is.EqualTo(new CoinBalance(initial + winnings)));
}
public void NegativeValues_AreForbidden_WhenAccumulating(int invalidWinnings)
{
var coinService = new CoinService();
Assert.Throws <ArgumentException>(
() =>
{
var x = coinService.Accumulate(CoinBalance.Empty, invalidWinnings);
});
}