@Test
public void testSimpleLocking() throws Exception {
ByteBufferCache cache = new ByteBufferCache(40, 80, true);
ByteBufferDirectory dir = new ByteBufferDirectory(cache);
Lock lock = dir.makeLock("testlock");
assertThat(lock.isLocked(), equalTo(false));
assertThat(lock.obtain(200), equalTo(true));
assertThat(lock.isLocked(), equalTo(true));
try {
assertThat(lock.obtain(200), equalTo(false));
assertThat("lock should be thrown", false, equalTo(true));
} catch (LockObtainFailedException e) {
// all is well
}
lock.release();
assertThat(lock.isLocked(), equalTo(false));
dir.close();
cache.close();
}
private boolean assertEnvIsLocked() {
if (!closed.get() && locks != null) {
for (Lock lock : locks) {
try {
assert lock.isLocked() : "Lock: " + lock + "is not locked";
} catch (IOException e) {
logger.warn("lock assertion failed", e);
return false;
}
}
}
return true;
}