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 import java.util.Date; 26 import javax.persistence.EntityManager; 27 import javax.persistence.EntityManagerFactory; 28 import javax.persistence.Query; 29 import junit.framework.TestCase; 30 import org.hibernate.HibernateException; 31 32 /** @author Dhanji R. Prasanna (dhanji@gmail.com) */ 33 34 public class JpaWorkManagerTest extends TestCase { 35 private Injector injector; 36 private static final String UNIQUE_TEXT_3 = 37 JpaWorkManagerTest.class.getSimpleName() 38 + "CONSTRAINT_VIOLATING some other unique text" 39 + new Date(); 40 41 @Override setUp()42 public void setUp() { 43 injector = Guice.createInjector(new JpaPersistModule("testUnit")); 44 45 //startup persistence 46 injector.getInstance(PersistService.class).start(); 47 } 48 49 @Override tearDown()50 public void tearDown() { 51 try { 52 injector.getInstance(EntityManagerFactory.class).close(); 53 } catch (HibernateException ex) { 54 // Expected if the persist service has already been stopped. 55 } 56 } 57 testWorkManagerInSession()58 public void testWorkManagerInSession() { 59 injector.getInstance(UnitOfWork.class).begin(); 60 try { 61 injector.getInstance(TransactionalObject.class).runOperationInTxn(); 62 } finally { 63 injector.getInstance(UnitOfWork.class).end(); 64 } 65 66 injector.getInstance(UnitOfWork.class).begin(); 67 injector.getInstance(EntityManager.class).getTransaction().begin(); 68 try { 69 final Query query = 70 injector 71 .getInstance(EntityManager.class) 72 .createQuery("select e from JpaTestEntity as e where text = :text"); 73 74 query.setParameter("text", UNIQUE_TEXT_3); 75 final Object o = query.getSingleResult(); 76 77 assertNotNull("no result!!", o); 78 assertTrue("Unknown type returned " + o.getClass(), o instanceof JpaTestEntity); 79 JpaTestEntity ent = (JpaTestEntity) o; 80 81 assertEquals( 82 "Incorrect result returned or not persisted properly" + ent.getText(), 83 UNIQUE_TEXT_3, 84 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