@AfterMethod
protected void deleteLog() {
try {
if (log.isOpen()) log.close();
} catch (Exception ignore) {
} finally {
assertFalse(log.isOpen());
assertTrue(log.isClosed());
log.delete();
}
}
@Test(expected = RuntimeException.class)
public void testCorruptTxn() throws Exception {
if (logClass == (Class<?>) SimpleLog.class) {
Log log = getLog();
appendTxns(log, new Zxid(0, 0), 1);
// Corrupts Transaction.
corruptFile(20);
// Iterating the log will trigger the checksum error.
log.getIterator(log.getLatestZxid());
log.close();
} else {
throw new RuntimeException("Simulated exception for RollingLog.");
}
}
@Test
public void testRecoverFromExistingLog() throws Exception {
Log log = getLog();
// Appends 100 transactions.
appendTxns(log, new Zxid(0, 0), 100);
log.close();
// Reopen the log.
log = getLog();
List<Zxid> zxids = getZxids(log, Zxid.ZXID_NOT_EXIST);
// Check all the transactions are still in log.
Assert.assertEquals(100, zxids.size());
// Check all the transactions are in correct order.
for (int i = 0; i < zxids.size(); ++i) {
Zxid zxid = new Zxid(0, i);
Assert.assertEquals(zxid, zxids.get(i));
}
}
@Test
public void testSyncEmptyLog() throws Exception {
Log log = getLog();
log.sync();
log.close();
}