public void TestIEnumerator()
{
Rope r = RopeBuilder.BUILD("01234aaa56789");
r = r.Insert(4, "0000001123456");
r = r.Insert(3, "hello, stranger");
r = r.Remove(4, 10);
r = r.Insert(0, " ");
r = r.SubSequence(3, 17);
IEnumerator enumerator = r.GetEnumerator();
while (enumerator.MoveNext())
{
Assert.IsTrue(enumerator.Current != null);
}
}