[Test]
public void OrderUniqueList()
{
    var orderlist1 = new UniqueList<int> { 2, 9, 5, 3, 0, 1 };
    var orderlist2 = new UniqueList<int> { 1, 8, 4, 2, 9, 7 };
    var myComparer = new NumberComparer();
    orderlist1.Sort();
    orderlist2.Sort(myComparer);
    Assert.AreEqual(2, orderlist1[2]);
    Assert.AreEqual(4, orderlist2[2]);
    orderlist1.Clear();
    Assert.AreEqual(0, orderlist1.Count);
}

[Test]
public void OrderUniqueList()
{
    var orderlist1 = new UniqueList<int> { 2, 9, 5, 3, 0, 1 };
    var orderlist2 = new UniqueList<int> { 1, 8, 4, 2, 9, 7 };
    var myComparer = new NumberComparer();
    orderlist1.Sort();
    orderlist2.Sort(myComparer);
    Assert.AreEqual(2, orderlist1[2]);
    Assert.AreEqual(4, orderlist2[2]);
    orderlist1.Clear();
    Assert.AreEqual(0, orderlist1.Count);
}