| /* |
| * 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.PersistService; |
| import com.google.inject.persist.Transactional; |
| import com.google.inject.persist.UnitOfWork; |
| import javax.persistence.EntityManager; |
| import javax.persistence.EntityManagerFactory; |
| import junit.framework.TestCase; |
| |
| /** |
| * A test around providing sessions (starting, closing etc.) |
| * |
| * @author Dhanji R. Prasanna (dhanji@gmail.com) |
| */ |
| |
| public class EntityManagerPerRequestProvisionTest extends TestCase { |
| private Injector injector; |
| |
| @Override |
| public void setUp() { |
| injector = Guice.createInjector(new JpaPersistModule("testUnit")); |
| |
| //startup persistence |
| injector.getInstance(PersistService.class).start(); |
| |
| injector.getInstance(UnitOfWork.class).begin(); |
| } |
| |
| @Override |
| public final void tearDown() { |
| injector.getInstance(UnitOfWork.class).end(); |
| injector.getInstance(EntityManagerFactory.class).close(); |
| } |
| |
| public void testEntityManagerLifecyclePerTxn() { |
| //obtain em |
| JpaDao dao = injector.getInstance(JpaDao.class); |
| |
| //obtain same em again (bound to txn) |
| JpaTestEntity te = new JpaTestEntity(); |
| |
| dao.persist(te); |
| |
| //im not sure this hack works... |
| assertEquals( |
| "Entity managers closed inside same thread-scope", |
| injector.getInstance(EntityManager.class), |
| JpaDao.em); |
| |
| //try to start a new em in a new txn |
| dao = injector.getInstance(JpaDao.class); |
| |
| assertTrue( |
| "EntityManager was closed and reopened around txn" |
| + " (persistent object does not persist)", |
| dao.contains(te)); |
| } |
| |
| public void testEntityManagerLifecyclePerTxn2() { |
| //obtain em |
| JpaDao dao = injector.getInstance(JpaDao.class); |
| |
| //obtain same em again (bound to txn) |
| JpaTestEntity te = new JpaTestEntity(); |
| |
| dao.persist(te); |
| |
| //im not sure this hack works... |
| assertEquals( |
| "Duplicate entity managers crossing-scope", |
| injector.getInstance(EntityManager.class), |
| JpaDao.em); |
| assertEquals( |
| "Duplicate entity managers crossing-scope", |
| injector.getInstance(EntityManager.class), |
| JpaDao.em); |
| |
| //try to start a new em in a new txn |
| dao = injector.getInstance(JpaDao.class); |
| |
| assertTrue( |
| "EntityManager was closed and reopened around txn" + " (persistent object doesnt persist)", |
| dao.contains(te)); |
| } |
| |
| public static class JpaDao { |
| static EntityManager em; |
| |
| @Inject |
| public JpaDao(EntityManager em) { |
| JpaDao.em = em; |
| } |
| |
| @Transactional |
| public <T> void persist(T t) { |
| assertTrue("em is not open!", em.isOpen()); |
| assertTrue("no active txn!", em.getTransaction().isActive()); |
| em.persist(t); |
| |
| assertTrue("Persisting object failed", em.contains(t)); |
| } |
| |
| @Transactional |
| public <T> boolean contains(T t) { |
| return em.contains(t); |
| } |
| } |
| } |