private void testInsert_NewParentAndChild_StringPk(StartEnd startEnd) throws Exception {
testInsert_NewParentAndChild_StringPk("yar", new BidirTopStringPkList(), startEnd,
UnidirLevel.Top, new Long(1), 1);
testInsert_NewParentAndChild_StringPk("yas", new BidirBottomStringPkList(), startEnd,
UnidirLevel.Middle, new Long(3), 2);
testInsert_NewParentAndChild_StringPk("yat", new BidirMiddleStringPkList(), startEnd,
UnidirLevel.Bottom, new Long(2), 3);
}