public void CoinChangeProblemSimpleTest()
{
var coinChanger = new CoinChange();
var firstResult = coinChanger.DynamicCoinCange(6, new int[] { 1, 3, 4 });
var secondResult = coinChanger.DynamicCoinCange(12, new int[] { 1, 6, 8 });
var thirdResult = coinChanger.DynamicCoinCange(48, new int[] { 1, 16, 40 });
var fourthResult = coinChanger.DynamicCoinCange(50, new int[] { 5, 25, 40 });
var fifthResult = coinChanger.DynamicCoinCange(500, new int[] { 10, 250, 480 });
firstResult.Should().Be("2 * 3");
secondResult.Should().Be("2 * 6");
thirdResult.Should().Be("3 * 16");
fourthResult.Should().Be("2 * 25");
fifthResult.Should().Be("2 * 250");
}
public void InvalidInputSimpleTest()
{
var coinChanger = new CoinChange();
Action negativeInteger = () => coinChanger.DynamicCoinCange(-6, new int[] { 1, 3, 4 });
Action negativeCoin = () => coinChanger.DynamicCoinCange(12, new int[] { 1, -6, 8 });
Action notUniqueCoins = () => coinChanger.DynamicCoinCange(48, new int[] { 1, 16, 40, 40 });
var nullIntegerValueResult = coinChanger.DynamicCoinCange(0, new int[] { 5, 25, 40 });
negativeCoin.Should().Throw <Exception>()
.WithMessage("Coin should be positive integer");
negativeInteger.Should().Throw <Exception>()
.WithMessage("Input should be a positive integer");
notUniqueCoins.Should().Throw <Exception>()
.WithMessage("Coins should have unique values");
nullIntegerValueResult.Should().Be(string.Empty);
}