public void ReturnsTrueAndMovesItemDownForContainedItemAtSecondPosition()
{
var list = new List<int> { 1, 2, 3 };
Assert.IsTrue(list.MoveItemDownByIndex(1));
Assert.AreEqual(3, list.Count);
Assert.AreEqual(1, list[0]);
Assert.AreEqual(3, list[1]);
Assert.AreEqual(2, list[2]);
}
}