*/
public void test(TestHarness harness)
{
char[] ch = new char[] {'A', 'B', 'C', 'D', 'E', 'F', 'G'};
Segment s = new Segment(ch, 0, 7);
harness.check(s.first(), 'A');
harness.check(s.getIndex(), 0);
s.last();
harness.check(s.getIndex(), 6);
harness.check(s.first(), 'A');
harness.check(s.getIndex(), 0);