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 17package com.google.inject.persist.jpa; 18 19import com.google.inject.Guice; 20import com.google.inject.Inject; 21import com.google.inject.Injector; 22import com.google.inject.persist.PersistService; 23import com.google.inject.persist.Transactional; 24import com.google.inject.persist.UnitOfWork; 25 26import junit.framework.TestCase; 27 28import java.io.IOException; 29import java.util.Date; 30 31import javax.persistence.EntityManager; 32import javax.persistence.EntityManagerFactory; 33import javax.persistence.NoResultException; 34 35/** 36 * @author Dhanji R. Prasanna (dhanji@gmail.com) 37 */ 38 39public class JoiningLocalTransactionsTest extends TestCase { 40 private Injector injector; 41 private static final String UNIQUE_TEXT = JoiningLocalTransactionsTest.class + "some unique text" 42 + new Date(); 43 private static final String TRANSIENT_UNIQUE_TEXT = JoiningLocalTransactionsTest.class 44 + "some other unique text" + new Date(); 45 46 @Override 47 public void setUp() { 48 injector = Guice.createInjector(new JpaPersistModule("testUnit")); 49 50 //startup persistence 51 injector.getInstance(PersistService.class).start(); 52 } 53 54 //cleanup entitymanager in case some of the rollback tests left it in an open state 55 @Override 56 public final void tearDown() { 57 injector.getInstance(UnitOfWork.class).end(); 58 injector.getInstance(EntityManagerFactory.class).close(); 59 } 60 61 public void testSimpleTransaction() { 62 injector.getInstance(JoiningLocalTransactionsTest.TransactionalObject.class) 63 .runOperationInTxn(); 64 65 EntityManager em = injector.getInstance(EntityManager.class); 66 assertFalse("txn was not closed by transactional service", 67 em.getTransaction().isActive()); 68 69 //test that the data has been stored 70 Object result = em.createQuery("from JpaTestEntity where text = :text") 71 .setParameter("text", UNIQUE_TEXT).getSingleResult(); 72 injector.getInstance(UnitOfWork.class).end(); 73 74 assertTrue("odd result returned fatal", result instanceof JpaTestEntity); 75 76 assertEquals("queried entity did not match--did automatic txn fail?", UNIQUE_TEXT, 77 ((JpaTestEntity) result).getText()); 78 } 79 80 public void testSimpleTransactionRollbackOnChecked() { 81 try { 82 injector.getInstance(JoiningLocalTransactionsTest.TransactionalObject.class) 83 .runOperationInTxnThrowingChecked(); 84 } catch (IOException e) { 85 //ignore 86 injector.getInstance(UnitOfWork.class).end(); 87 } 88 89 EntityManager em = injector.getInstance(EntityManager.class); 90 91 assertFalse("EM was not closed by transactional service (rollback didnt happen?)", 92 em.getTransaction().isActive()); 93 94 //test that the data has been stored 95 try { 96 Object result = em.createQuery("from JpaTestEntity where text = :text") 97 .setParameter("text", TRANSIENT_UNIQUE_TEXT).getSingleResult(); 98 injector.getInstance(UnitOfWork.class).end(); 99 fail("a result was returned! rollback sure didnt happen!!!"); 100 } catch (NoResultException e) { } 101 } 102 103 public void testSimpleTransactionRollbackOnUnchecked() { 104 try { 105 injector.getInstance(JoiningLocalTransactionsTest.TransactionalObject.class) 106 .runOperationInTxnThrowingUnchecked(); 107 } catch (RuntimeException re) { 108 //ignore 109 injector.getInstance(UnitOfWork.class).end(); 110 } 111 112 EntityManager em = injector.getInstance(EntityManager.class); 113 assertFalse("Session was not closed by transactional service (rollback didnt happen?)", 114 em.getTransaction().isActive()); 115 116 try { 117 Object result = em.createQuery("from JpaTestEntity where text = :text") 118 .setParameter("text", TRANSIENT_UNIQUE_TEXT).getSingleResult(); 119 injector.getInstance(UnitOfWork.class).end(); 120 fail("a result was returned! rollback sure didnt happen!!!"); 121 } catch (NoResultException e) {} 122 } 123 124 public static class TransactionalObject { 125 private final EntityManager em; 126 127 @Inject 128 public TransactionalObject(EntityManager em) { 129 this.em = em; 130 } 131 132 @Transactional 133 public void runOperationInTxn() { 134 runOperationInTxnInternal(); 135 } 136 137 @Transactional(rollbackOn = IOException.class) 138 public void runOperationInTxnInternal() { 139 JpaTestEntity entity = new JpaTestEntity(); 140 entity.setText(UNIQUE_TEXT); 141 em.persist(entity); 142 } 143 144 @Transactional(rollbackOn = IOException.class) 145 public void runOperationInTxnThrowingChecked() throws IOException { 146 runOperationInTxnThrowingCheckedInternal(); 147 } 148 149 @Transactional 150 private void runOperationInTxnThrowingCheckedInternal() throws IOException { 151 JpaTestEntity entity = new JpaTestEntity(); 152 entity.setText(TRANSIENT_UNIQUE_TEXT); 153 em.persist(entity); 154 155 throw new IOException(); 156 } 157 158 @Transactional 159 public void runOperationInTxnThrowingUnchecked() { 160 runOperationInTxnThrowingUncheckedInternal(); 161 } 162 163 @Transactional(rollbackOn = IOException.class) 164 public void runOperationInTxnThrowingUncheckedInternal() { 165 JpaTestEntity entity = new JpaTestEntity(); 166 entity.setText(TRANSIENT_UNIQUE_TEXT); 167 em.persist(entity); 168 169 throw new IllegalStateException(); 170 } 171 } 172} 173