package org.multiverse.stms.gamma.transactionalobjects.txnref;
import org.junit.Before;
import org.junit.Test;
import org.multiverse.api.LockMode;
import org.multiverse.stms.gamma.GammaStm;
import org.multiverse.stms.gamma.transactionalobjects.GammaTxnLong;
import org.multiverse.stms.gamma.transactions.GammaTxn;
import static org.junit.Assert.assertEquals;
import static org.multiverse.stms.gamma.GammaTestUtils.assertRefHasLockMode;
import static org.multiverse.stms.gamma.GammaTestUtils.assertVersionAndValue;
public class GammaTxnRef_getAndLock2Test {
private GammaStm stm;
@Before
public void setUp(){
stm = new GammaStm();
}
@Test
public void whenLockFree(){
whenLockFree(LockMode.None);
whenLockFree(LockMode.Read);
whenLockFree(LockMode.Write);
whenLockFree(LockMode.Exclusive);
}
public void whenLockFree(LockMode lockMode){
long initialValue = 10;
GammaTxnLong ref = new GammaTxnLong(stm, initialValue);
long initialVersion = ref.getVersion();
GammaTxn tx = stm.newDefaultTxn();
long result = ref.getAndLock(tx, lockMode);
assertEquals(initialValue,result);
assertVersionAndValue(ref,initialVersion, initialValue);
assertRefHasLockMode(ref, tx, lockMode.asInt());
}
}