/** | |
* Copyright (C) 2010 Google, Inc. | |
* | |
* Licensed under the Apache License, Version 2.0 (the "License"); | |
* you may not use this file except in compliance with the License. | |
* You may obtain a copy of the License at | |
* | |
* http://www.apache.org/licenses/LICENSE-2.0 | |
* | |
* Unless required by applicable law or agreed to in writing, software | |
* distributed under the License is distributed on an "AS IS" BASIS, | |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
* See the License for the specific language governing permissions and | |
* limitations under the License. | |
*/ | |
package com.google.inject.persist.jpa; | |
import com.google.inject.Guice; | |
import com.google.inject.Inject; | |
import com.google.inject.Injector; | |
import com.google.inject.persist.Transactional; | |
import com.google.inject.persist.WorkManager; | |
import java.io.IOException; | |
import java.util.Date; | |
import javax.persistence.EntityManager; | |
import javax.persistence.EntityManagerFactory; | |
import javax.persistence.NoResultException; | |
import junit.framework.TestCase; | |
/** | |
* @author Dhanji R. Prasanna (dhanji@gmail.com) | |
*/ | |
public class ManagedLocalTransactionsTest extends TestCase { | |
private Injector injector; | |
private static final String UNIQUE_TEXT = "some unique text" + new Date(); | |
private static final String UNIQUE_TEXT_MERGE = "meRG_Esome unique text" + new Date(); | |
private static final String TRANSIENT_UNIQUE_TEXT = "some other unique text" + new Date(); | |
@Override | |
public void setUp() { | |
injector = Guice.createInjector(new JpaPersistModule("testUnit")); | |
//startup persistence | |
injector.getInstance(WorkManager.class).startPersistence(); | |
} | |
@Override | |
public final void tearDown() { | |
injector.getInstance(WorkManager.class).end(); | |
injector.getInstance(EntityManagerFactory.class).close(); | |
} | |
public void testSimpleTransaction() { | |
injector.getInstance(TransactionalObject.class).runOperationInTxn(); | |
EntityManager em = injector.getInstance(EntityManager.class); | |
assertFalse("txn was not closed by transactional service", em.getTransaction().isActive()); | |
//test that the data has been stored | |
Object result = em.createQuery("from JpaTestEntity where text = :text") | |
.setParameter("text", UNIQUE_TEXT).getSingleResult(); | |
injector.getInstance(WorkManager.class).end(); | |
assertTrue("odd result returned fatal", result instanceof JpaTestEntity); | |
assertEquals("queried entity did not match--did automatic txn fail?", | |
UNIQUE_TEXT, ((JpaTestEntity) result).getText()); | |
} | |
public void testSimpleTransactionWithMerge() { | |
JpaTestEntity entity = injector.getInstance(TransactionalObject.class) | |
.runOperationInTxnWithMerge(); | |
EntityManager em = injector.getInstance(EntityManager.class); | |
assertFalse("txn was not closed by transactional service", em.getTransaction().isActive()); | |
//test that the data has been stored | |
assertTrue("Em was closed after txn!", em.isOpen()); | |
Object result = em.createQuery("from JpaTestEntity where text = :text") | |
.setParameter("text", UNIQUE_TEXT_MERGE).getSingleResult(); | |
injector.getInstance(WorkManager.class).end(); | |
assertTrue(result instanceof JpaTestEntity); | |
assertEquals("queried entity did not match--did automatic txn fail?", | |
UNIQUE_TEXT_MERGE, ((JpaTestEntity) result).getText()); | |
} | |
public void testSimpleTransactionRollbackOnChecked() { | |
try { | |
injector.getInstance(TransactionalObject.class).runOperationInTxnThrowingChecked(); | |
} catch (IOException e) { | |
//ignore | |
injector.getInstance(WorkManager.class).end(); | |
} | |
EntityManager em = injector.getInstance(EntityManager.class); | |
assertFalse("Previous EM was not closed by transactional service (rollback didnt happen?)", | |
em.getTransaction().isActive()); | |
//test that the data has been stored | |
try { | |
Object result = em.createQuery("from JpaTestEntity where text = :text") | |
.setParameter("text", TRANSIENT_UNIQUE_TEXT).getSingleResult(); | |
injector.getInstance(WorkManager.class).end(); | |
fail("a result was returned! rollback sure didnt happen!!!"); | |
} catch (NoResultException e) {} | |
} | |
public void testSimpleTransactionRollbackOnUnchecked() { | |
try { | |
injector.getInstance(TransactionalObject.class).runOperationInTxnThrowingUnchecked(); | |
} catch (RuntimeException re) { | |
//ignore | |
injector.getInstance(WorkManager.class).end(); | |
} | |
EntityManager em = injector.getInstance(EntityManager.class); | |
assertFalse("Session was not closed by transactional service (rollback didnt happen?)", | |
em.getTransaction().isActive()); | |
try { | |
Object result = em.createQuery("from JpaTestEntity where text = :text") | |
.setParameter("text", TRANSIENT_UNIQUE_TEXT).getSingleResult(); | |
injector.getInstance(WorkManager.class).end(); | |
fail("a result was returned! rollback sure didnt happen!!!"); | |
} catch (NoResultException e) {} | |
} | |
public static class TransactionalObject { | |
private final EntityManager em; | |
@Inject | |
public TransactionalObject(EntityManager em) { | |
this.em = em; | |
} | |
@Transactional | |
public void runOperationInTxn() { | |
JpaTestEntity entity = new JpaTestEntity(); | |
entity.setText(UNIQUE_TEXT); | |
em.persist(entity); | |
} | |
@Transactional | |
public JpaTestEntity runOperationInTxnWithMerge() { | |
JpaTestEntity entity = new JpaTestEntity(); | |
entity.setText(UNIQUE_TEXT_MERGE); | |
return em.merge(entity); | |
} | |
@Transactional(rollbackOn = IOException.class) | |
public void runOperationInTxnThrowingChecked() throws IOException { | |
JpaTestEntity entity = new JpaTestEntity(); | |
entity.setText(TRANSIENT_UNIQUE_TEXT); | |
em.persist(entity); | |
throw new IOException(); | |
} | |
@Transactional | |
public void runOperationInTxnThrowingUnchecked() { | |
JpaTestEntity entity = new JpaTestEntity(); | |
entity.setText(TRANSIENT_UNIQUE_TEXT); | |
em.persist(entity); | |
throw new IllegalStateException(); | |
} | |
} | |
} |