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