int firstkey = handler.getFirstKey();
assertEquals(firstkey, sn1);
assertEquals(handler.getLastKey(), sn3);
DraftCNDBCursor dbc = handler.getReadCursor(firstkey);
assertEquals(dbc.currentChangeNumber(), changeNumber1);
assertEquals(dbc.currentServiceID(), serviceID1);
assertEquals(dbc.currentValue(), value1);
assertTrue(dbc.toString().length() != 0);
assertTrue(dbc.next());