@Test
public void open_ignores_rollback() {
File f = TT.tempDbFile();
WriteAheadLog wal = new WriteAheadLog(f.getPath());
wal.walPutLong(1L, 11L);
wal.commit();
wal.walPutLong(2L, 33L);
wal.rollback();
wal.walPutLong(3L, 33L);
wal.commit();
wal.seal();
wal.close();
wal = new WriteAheadLog(f.getPath());
wal.open(
new WALSequence(
new Object[] {WALSequence.beforeReplayStart},
new Object[] {WALSequence.writeLong, 1L, 11L},
new Object[] {WALSequence.commit},
// 2L is ignored, rollback section is skipped on hard replay
new Object[] {WALSequence.writeLong, 3L, 33L},
new Object[] {WALSequence.commit}));
wal.destroyWalFiles();
wal.close();
f.delete();
}
@Test
public void overflow_record() {
File f = TT.tempDbFile();
f.delete();
File f0 = new File(f.getPath() + ".wal.0");
File f1 = new File(f.getPath() + ".wal.1");
WriteAheadLog wal = new WriteAheadLog(f.getPath());
wal.open(WriteAheadLog.NOREPLAY);
long lastPos = 0;
while (!f1.exists()) {
lastPos = wal.fileOffset;
wal.walPutRecord(111L, new byte[100], 0, 100);
assertTrue(f0.exists());
}
assertTrue(WriteAheadLog.MAX_FILE_SIZE - 1000 < lastPos);
assertTrue(WriteAheadLog.MAX_FILE_SIZE + 120 > lastPos);
wal.destroyWalFiles();
}