package org.infinispan.api.mvcc.repeatable_read;
import org.infinispan.Cache;
import org.infinispan.api.mvcc.LockTestBase;
import org.infinispan.transaction.tm.DummyTransactionManager;
import org.testng.annotations.Test;
import javax.transaction.Transaction;
import javax.transaction.TransactionManager;
@Test(groups = "functional", testName = "api.mvcc.repeatable_read.RepeatableReadLockTest")
public class RepeatableReadLockTest extends LockTestBase {
public RepeatableReadLockTest() {
repeatableRead = true;
}
public void testRepeatableReadWithRemove() throws Exception {
LockTestBaseTL tl = threadLocal.get();
Cache<String, String> cache = tl.cache;
TransactionManager tm = tl.tm;
cache.put("k", "v");
tm.begin();
assert cache.get("k") != null;
Transaction reader = tm.suspend();
tm.begin();
assert cache.remove("k") != null;
assert cache.get("k") == null;
tm.commit();
assert cache.get("k") == null;
tm.resume(reader);
assert cache.get("k") != null;
assert "v".equals(cache.get("k"));
tm.commit();
assert cache.get("k") == null;
assertNoLocks();
}
public void testRepeatableReadWithEvict() throws Exception {
LockTestBaseTL tl = threadLocal.get();
Cache<String, String> cache = tl.cache;
TransactionManager tm = tl.tm;
cache.put("k", "v");
tm.begin();
assert cache.get("k") != null;
Transaction reader = tm.suspend();
tm.begin();
cache.evict("k");
assert cache.get("k") == null;
tm.commit();
assert cache.get("k") == null;
tm.resume(reader);
assert cache.get("k") != null;
assert "v".equals(cache.get("k"));
tm.commit();
assert cache.get("k") == null;
assertNoLocks();
}
public void testRepeatableReadWithNull() throws Exception {
LockTestBaseTL tl = threadLocal.get();
Cache<String, String> cache = tl.cache;
TransactionManager tm = tl.tm;
assert cache.get("k") == null;
tm.begin();
assert cache.get("k") == null;
Transaction reader = tm.suspend();
tm.begin();
cache.put("k", "v");
assert cache.get("k") != null;
assert "v".equals(cache.get("k"));
tm.commit();
assert cache.get("k") != null;
assert "v".equals(cache.get("k"));
tm.resume(reader);
Object o = cache.get("k");
assert o == null : "found value " + o;
tm.commit();
assert cache.get("k") != null;
assert "v".equals(cache.get("k"));
assertNoLocks();
}
public void testRepeatableReadWithNullRemoval() throws Exception {
LockTestBaseTL tl = threadLocal.get();
Cache<String, String> cache = tl.cache;
TransactionManager tm = tl.tm;
// start with an empty cache
tm.begin();
cache.get("a");
Transaction tx = tm.suspend();
cache.put("a", "v2");
assert cache.get("a").equals("v2");
tm.resume(tx);
assert cache.get("a") == null : "expected null but received " + cache.get("a");
cache.remove("a");
tm.commit();
assert cache.get("a") == null : "expected null but received " + cache.get("a");
}
public void testLocksOnPutKeyVal() throws Exception {
LockTestBaseTL tl = threadLocal.get();
Cache<String, String> cache = tl.cache;
DummyTransactionManager tm = (DummyTransactionManager) tl.tm;
tm.begin();
cache.put("k", "v");
tm.getTransaction().runPrepare();
assertLocked("k");
tm.getTransaction().runCommitTx();
tm.suspend();
assertNoLocks();
tm.begin();
assert cache.get("k").equals("v");
assertNotLocked("k");
tm.commit();
assertNoLocks();
tm.begin();
cache.remove("k");
tm.getTransaction().runPrepare();
assertLocked("k");
tm.getTransaction().runCommitTx();
assertNoLocks();
}
}