public void TestFirstNegative()
{
// Extend your function to count negatively if the input was negative.
CollectionAssert.AreEqual(new List <int> {
-1, -2, -3, -4, -5
}, RecursiveFunctions.FirstNNaturalNumbers(-5));
}
public void TestFirstPositive()
{
CollectionAssert.AreEqual(new List <int> (), RecursiveFunctions.FirstNNaturalNumbers(0));
CollectionAssert.AreEqual(new List <int> {
1, 2, 3, 4, 5
}, RecursiveFunctions.FirstNNaturalNumbers(5));
}