1 /** 2 * Copyright (C) 2010 Google, Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.inject.persist.jpa; 18 19 import com.google.inject.Guice; 20 import com.google.inject.Inject; 21 import com.google.inject.Injector; 22 import com.google.inject.persist.PersistService; 23 import com.google.inject.persist.Transactional; 24 import com.google.inject.persist.UnitOfWork; 25 26 import junit.framework.TestCase; 27 import org.hibernate.HibernateException; 28 29 import java.util.Date; 30 31 import javax.persistence.EntityManager; 32 import javax.persistence.EntityManagerFactory; 33 import javax.persistence.Query; 34 35 /** 36 * @author Dhanji R. Prasanna (dhanji@gmail.com) 37 */ 38 39 public class JpaWorkManagerTest extends TestCase { 40 private Injector injector; 41 private static final String UNIQUE_TEXT_3 = JpaWorkManagerTest.class.getSimpleName() 42 + "CONSTRAINT_VIOLATING some other unique text" + new Date(); 43 44 @Override setUp()45 public void setUp() { 46 injector = Guice.createInjector(new JpaPersistModule("testUnit")); 47 48 //startup persistence 49 injector.getInstance(PersistService.class).start(); 50 } 51 52 @Override tearDown()53 public void tearDown() { 54 try { 55 injector.getInstance(EntityManagerFactory.class).close(); 56 } catch(HibernateException ex) { 57 // Expected if the persist service has already been stopped. 58 } 59 } 60 testWorkManagerInSession()61 public void testWorkManagerInSession() { 62 injector.getInstance(UnitOfWork.class).begin(); 63 try { 64 injector.getInstance(TransactionalObject.class).runOperationInTxn(); 65 } finally { 66 injector.getInstance(UnitOfWork.class).end(); 67 68 } 69 70 injector.getInstance(UnitOfWork.class).begin(); 71 injector.getInstance(EntityManager.class).getTransaction().begin(); 72 try { 73 final Query query = injector.getInstance(EntityManager.class) 74 .createQuery("select e from JpaTestEntity as e where text = :text"); 75 76 query.setParameter("text", UNIQUE_TEXT_3); 77 final Object o = query.getSingleResult(); 78 79 assertNotNull("no result!!", o); 80 assertTrue("Unknown type returned " + o.getClass(), o instanceof JpaTestEntity); 81 JpaTestEntity ent = (JpaTestEntity) o; 82 83 assertEquals("Incorrect result returned or not persisted properly" + ent.getText(), 84 UNIQUE_TEXT_3, ent.getText()); 85 86 } finally { 87 injector.getInstance(EntityManager.class).getTransaction().commit(); 88 injector.getInstance(UnitOfWork.class).end(); 89 } 90 } 91 testCloseMoreThanOnce()92 public void testCloseMoreThanOnce() { 93 injector.getInstance(PersistService.class).stop(); 94 95 try { 96 injector.getInstance(PersistService.class).stop(); 97 fail(); 98 } catch (IllegalStateException e) { 99 // Ignored. 100 } 101 } 102 103 public static class TransactionalObject { 104 @Inject EntityManager em; 105 106 @Transactional runOperationInTxn()107 public void runOperationInTxn() { 108 JpaTestEntity testEntity = new JpaTestEntity(); 109 110 testEntity.setText(UNIQUE_TEXT_3); 111 em.persist(testEntity); 112 } 113 114 @Transactional runOperationInTxnError()115 public void runOperationInTxnError() { 116 117 JpaTestEntity testEntity = new JpaTestEntity(); 118 119 testEntity.setText(UNIQUE_TEXT_3 + "transient never in db!" + hashCode()); 120 em.persist(testEntity); 121 } 122 } 123 } 124