public void DPSumThrowsForNegativeValues()
{
Action action1 = () => FibonacciNumbers.DPSum(-1);
action1.ShouldThrow <ArgumentException>();
Action action2 = () => FibonacciNumbers.DPSum(-10);
action2.ShouldThrow <ArgumentException>();
}
public void DPSumWorks(long n, long fibn)
{
FibonacciNumbers.DPSum(n).Should().Be(fibn);
}
public void DPSumBaseCases()
{
FibonacciNumbers.DPSum(0).Should().Be(0);
FibonacciNumbers.DPSum(1).Should().Be(1);
}