public void TestSetAllValuesToN()
{
int[] arr = new int[] { 0, 1, -2, 3, -4, 5 };
Part2.SetAllValuesToN(arr, 3);
CollectionAssert.AreEqual(new int[] { 3, 3, 3, 3, 3, 3 }, arr);
Part2.SetAllValuesToN(arr, 4);
CollectionAssert.AreEqual(new int[] { 4, 4, 4, 4, 4, 4 }, arr);
}