[Test] public void testEach()
{
var result = new List <string>();
O.each(LETTERS, result.Add);
AreEqual(LETTERS, result);
result.Clear();
O.eachIt(LETTERS, (i, s) => result.Add(i + " " + s));
AreEqual(O.list("0 a", "1 b", "2 c"), result);
int[] sum = { 0 };
O.eachIt(START, delegate(int i, int val) { sum[0] += val + i; });
AreEqual(sum[0], 21);
sum[0] = 0;
O.eachIt(O.list(7, 8, 9), delegate(int i, int val) { sum[0] += val * i; });
AreEqual(sum[0], 26);
}