public void Execute(int index)
{
int count = Reader.BeginForEachIndex(index);
Assert.AreEqual(count, index);
for (int i = 0; i != index; i++)
{
Assert.AreEqual(index - i, Reader.RemainingItemCount);
var peekedValue = Reader.Peek <int>();
var value = Reader.Read <int>();
Assert.AreEqual(i, value);
Assert.AreEqual(i, peekedValue);
}
}