public void ReturnsFalseForNotContainedItem() { var list = new List<int> { 1, 2, 3 }; Assert.IsFalse(list.MoveItemUp(4)); Assert.AreEqual(3, list.Count); Assert.AreEqual(1, list[0]); Assert.AreEqual(2, list[1]); Assert.AreEqual(3, list[2]); }