public void SmallestPositiveInteger1()
{
int[] input = { 1, 3, 6, 4, 1, 2 };
const int expected = 5;
Assert.AreEqual(expected, SmallestPositiveInteger.Solution(input));
}
public void SmallestPositiveInteger3()
{
int[] input = { -1, -3 };
const int expected = 1;
Assert.AreEqual(expected, SmallestPositiveInteger.Solution(input));
}