//[Test]
public void negativeIterative()
{
for (int i = -20; i < 0; ++i)
{
Factorial_BigInteger.iterative((ulong)i);
}
}
public void correctIterative()
{
for (int i = 0; i < data.Length; ++i)
{
Assert.AreEqual(data[i].expected, Factorial_BigInteger.iterative(data[i].i));
}
}