ManualLocalTransactionsConfidenceTest.java revision 0391e964363bf98fdbe737723c4a7fdc05c3ffc3 
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.PersistModule;
23import com.google.inject.persist.PersistenceService;
24import com.google.inject.persist.Transactional;
25import com.google.inject.persist.UnitOfWork;
26import java.util.Date;
27import javax.persistence.EntityManager;
28import javax.persistence.PersistenceException;
29import junit.framework.TestCase;
30
31/**
32 * @author Dhanji R. Prasanna (dhanji@gmail.com)
33 */
34public class ManualLocalTransactionsConfidenceTest extends TestCase {
35  private Injector injector;
36  private static final String UNIQUE_TEXT_3 =
37      ManualLocalTransactionsConfidenceTest.class.getSimpleName()
38          + "CONSTRAINT_VIOLATING some other unique text" + new Date();
39
40  @Override
41  public void setUp() {
42    injector = Guice.createInjector(new PersistModule() {
43
44      protected void configurePersistence() {
45        //tell guice the name of the jpa persistence unit
46        workAcross(UnitOfWork.TRANSACTION).usingJpa("testUnit");
47      }
48    });
49
50    //startup persistence
51    injector.getInstance(PersistenceService.class).start();
52  }
53
54  @Override
55  public final void tearDown() {
56    injector.getInstance(PersistenceService.class).shutdown();
57  }
58
59  public void testThrowingCleanupInterceptorConfidence() {
60    Exception e = null;
61    try {
62      System.out.println(
63          "\n\n******************************* EXPECTED EXCEPTION NORMAL TEST BEHAVIOR **********");
64      injector.getInstance(TransactionalObject.class).runOperationInTxn();
65      fail();
66    } catch (RuntimeException re) {
67      e = re;
68      System.out.println(
69          "\n\n******************************* EXPECTED EXCEPTION NORMAL TEST BEHAVIOR **********");
70      re.printStackTrace(System.out);
71      System.out.println(
72          "\n\n**********************************************************************************");
73    }
74
75    assertNotNull("No exception was thrown!", e);
76    assertTrue("Exception thrown was not what was expected (i.e. commit-time)",
77        e instanceof PersistenceException);
78  }
79
80  public static class TransactionalObject {
81    @Inject EntityManager em;
82
83    @Transactional
84    public void runOperationInTxn() {
85      JpaParentTestEntity entity = new JpaParentTestEntity();
86      JpaTestEntity child = new JpaTestEntity();
87
88      child.setText(UNIQUE_TEXT_3);
89      em.persist(child);
90
91      entity.getChildren().add(child);
92      em.persist(entity);
93
94      entity = new JpaParentTestEntity();
95      entity.getChildren().add(child);
96      em.persist(entity);
97    }
98  }
99}
100