public void TestListExplicitImplementation()
{
var list = new List2 <int>();
Assert.AreEqual(0, list[0]);
Assert.True(list.Contains(0));
Assert.AreEqual(1000, list.Count);
Assert.False(list.IsReadOnly);
Assert.Null(list.GetEnumerator());
Assert.AreEqual(2000, list.IndexOf(0));
Assert.True(list.Remove(0));
var a = new int[] { 1, 2 };
list.CopyTo(a, 0);
Assert.AreEqual(0, a[1]);
IList <int> list2 = new List2 <int>();
Assert.AreEqual(0, list2[0]);
Assert.True(list2.Contains(0));
Assert.AreEqual(1000, list2.Count);
Assert.False(list.IsReadOnly);
Assert.Null(list2.GetEnumerator());
Assert.AreEqual(2000, list2.IndexOf(0));
Assert.True(list2.Remove(0));
var a2 = new int[] { 1, 2 };
list2.CopyTo(a, 0);
Assert.AreEqual(2, a2[1]);
}