public void TestDuplicates()
{
const int amount = 3;
var coins = new[] { 1, 2 };
CoinChangeCalculator.CalculateNumberOfChangeCombinations(amount, coins).Should().Be(2);
}
public void TestExample()
{
const int amount = 5;
var coins = new[] { 1, 2, 5 };
CoinChangeCalculator.CalculateNumberOfChangeCombinations(amount, coins).Should().Be(4);
}