@Test
public void test_index_record_delete() {
long recid = engine.put(1000L, Serializer.LONG_SERIALIZER);
engine.commit();
assertEquals(1, countIndexRecords());
engine.delete(recid, Serializer.LONG_SERIALIZER);
engine.commit();
assertEquals(0, countIndexRecords());
}
@Test
public void test_phys_record_reused() {
final long recid = engine.put(1L, Serializer.LONG_SERIALIZER);
final long physRecid = engine.index.getLong(recid * 8 + StorageDirect.INDEX_OFFSET_START * 8);
engine.delete(recid, Serializer.LONG_SERIALIZER);
final long recid2 = engine.put(1L, Serializer.LONG_SERIALIZER);
assertEquals(recid, recid2);
assertEquals(physRecid, engine.index.getLong(recid * 8 + StorageDirect.INDEX_OFFSET_START * 8));
}
@Test
public void test_index_record_delete_and_reusef() {
long recid = engine.put(1000L, Serializer.LONG_SERIALIZER);
engine.commit();
assertEquals(1, countIndexRecords());
assertEquals(Engine.LAST_RESERVED_RECID + 1, recid);
engine.delete(recid, Serializer.LONG_SERIALIZER);
engine.commit();
assertEquals(0, countIndexRecords());
long recid2 = engine.put(1000L, Serializer.LONG_SERIALIZER);
engine.commit();
// test that previously deleted index slot was reused
assertEquals(recid, recid2);
assertEquals(1, countIndexRecords());
assertNotEquals(0, engine.index.getLong(recid * 8 + StorageDirect.INDEX_OFFSET_START * 8));
}
@Test
public void test_index_record_delete_and_reuse_large() {
final long MAX = 10;
List<Long> recids = new ArrayList<Long>();
for (int i = 0; i < MAX; i++) {
recids.add(engine.put(0L, Serializer.LONG_SERIALIZER));
}
for (long recid : recids) {
engine.delete(recid, Serializer.LONG_SERIALIZER);
}
// now allocate again second recid list
List<Long> recids2 = new ArrayList<Long>();
for (int i = 0; i < MAX; i++) {
recids2.add(engine.put(0L, Serializer.LONG_SERIALIZER));
}
// second list should be reverse of first, as Linked Offset List is LIFO
Collections.reverse(recids);
assertEquals(recids, recids2);
}