@Test public void preallocate() { WriteAheadLog wal = new WriteAheadLog(null); wal.open(WriteAheadLog.NOREPLAY); wal.startNextFile(); wal.walPutPreallocate(111111L); wal.seal(); final AtomicInteger c = new AtomicInteger(); wal.replayWAL( new WriteAheadLog.WALReplay() { @Override public void beforeReplayStart() {} @Override public void afterReplayFinished() {} @Override public void writeLong(long offset, long value) { fail(); } @Override public void writeRecord(long recid, long walId, Volume vol, long volOffset, int length) { fail(); } @Override public void writeByteArray( long offset, long walId, Volume vol, long volOffset, int length) { fail(); } @Override public void commit() { fail(); } @Override public void rollback() { fail(); } @Override public void writeTombstone(long recid) { fail(); } @Override public void writePreallocate(long recid) { c.incrementAndGet(); assertEquals(111111L, recid); } }); assertEquals(1, c.get()); }