/** Test ensureValid returns true after acquire */
public void testValidAfterAcquire() throws IOException {
Path tempPath = createTempDir();
Directory dir = getDirectory(tempPath);
Lock l = dir.obtainLock("commit");
l.ensureValid(); // no exception
l.close();
dir.close();
}
/** Test closing locks twice */
public void testDoubleClose() throws IOException {
Path tempPath = createTempDir();
Directory dir = getDirectory(tempPath);
Lock l = dir.obtainLock("commit");
l.close();
l.close(); // close again, should be no exception
dir.close();
}
/** Test obtaining and releasing locks, checking validity */
public void testBasics() throws IOException {
Path tempPath = createTempDir();
Directory dir = getDirectory(tempPath);
Lock l = dir.obtainLock("commit");
// shouldn't be able to get the lock twice
expectThrows(
LockObtainFailedException.class,
() -> {
dir.obtainLock("commit");
});
l.close();
// Make sure we can obtain first one again:
l = dir.obtainLock("commit");
l.close();
dir.close();
}
@Override
public void close() {
if (closed.compareAndSet(false, true) && locks != null) {
for (Lock lock : locks) {
try {
logger.trace("releasing lock [{}]", lock);
lock.close();
} catch (IOException e) {
logger.trace("failed to release lock [{}]", e, lock);
}
}
}
}
/** Test ensureValid throws exception after close */
public void testInvalidAfterClose() throws IOException {
Path tempPath = createTempDir();
Directory dir = getDirectory(tempPath);
Lock l = dir.obtainLock("commit");
l.close();
expectThrows(
AlreadyClosedException.class,
() -> {
l.ensureValid();
});
dir.close();
}