/*
* Copyright 2002-2016 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.orm.jpa;
import java.lang.reflect.Proxy;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceException;
import javax.persistence.Query;
import javax.persistence.TransactionRequiredException;
import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.dao.DataAccessException;
import org.springframework.dao.support.PersistenceExceptionTranslator;
import org.springframework.orm.jpa.domain.Person;
import static org.junit.Assert.*;
/**
* Integration tests using in-memory database for container-managed JPA
*
* @author Rod Johnson
* @author Juergen Hoeller
* @since 2.0
*/
public class ContainerManagedEntityManagerIntegrationTests extends AbstractEntityManagerFactoryIntegrationTests {
@Autowired
private AbstractEntityManagerFactoryBean entityManagerFactoryBean;
@Test
public void testExceptionTranslationWithDialectFoundOnIntroducedEntityManagerInfo() throws Exception {
doTestExceptionTranslationWithDialectFound(((EntityManagerFactoryInfo) entityManagerFactory).getJpaDialect());
}
@Test
public void testExceptionTranslationWithDialectFoundOnEntityManagerFactoryBean() throws Exception {
assertNotNull("Dialect must have been set", entityManagerFactoryBean.getJpaDialect());
doTestExceptionTranslationWithDialectFound(entityManagerFactoryBean);
}
protected void doTestExceptionTranslationWithDialectFound(PersistenceExceptionTranslator pet) throws Exception {
RuntimeException in1 = new RuntimeException("in1");
PersistenceException in2 = new PersistenceException();
assertNull("No translation here", pet.translateExceptionIfPossible(in1));
DataAccessException dex = pet.translateExceptionIfPossible(in2);
assertNotNull(dex);
assertSame(in2, dex.getCause());
}
@Test
@SuppressWarnings("unchecked")
public void testEntityManagerProxyIsProxy() {
EntityManager em = createContainerManagedEntityManager();
assertTrue(Proxy.isProxyClass(em.getClass()));
Query q = em.createQuery("select p from Person as p");
List<Person> people = q.getResultList();
assertTrue(people.isEmpty());
assertTrue("Should be open to start with", em.isOpen());
try {
em.close();
fail("Close should not work on container managed EM");
}
catch (IllegalStateException ex) {
// OK
}
assertTrue(em.isOpen());
}
// This would be legal, at least if not actually _starting_ a tx
@Test
public void testEntityManagerProxyRejectsProgrammaticTxManagement() {
try {
createContainerManagedEntityManager().getTransaction();
fail("Should have thrown an IllegalStateException");
}
catch (IllegalStateException ex) {
// expected
}
}
/*
* See comments in spec on EntityManager.joinTransaction().
* We take the view that this is a valid no op.
*/
@Test
public void testContainerEntityManagerProxyAllowsJoinTransactionInTransaction() {
createContainerManagedEntityManager().joinTransaction();
}
@Test
public void testContainerEntityManagerProxyRejectsJoinTransactionWithoutTransaction() {
endTransaction();
try {
createContainerManagedEntityManager().joinTransaction();
fail("Should have thrown a TransactionRequiredException");
}
catch (TransactionRequiredException ex) {
// expected
}
}
@Test
public void testInstantiateAndSave() {
EntityManager em = createContainerManagedEntityManager();
doInstantiateAndSave(em);
}
protected void doInstantiateAndSave(EntityManager em) {
assertEquals("Should be no people from previous transactions", 0, countRowsInTable(em, "person"));
Person p = new Person();
p.setFirstName("Tony");
p.setLastName("Blair");
em.persist(p);
em.flush();
assertEquals("1 row must have been inserted", 1, countRowsInTable(em, "person"));
}
@Test
public void testReuseInNewTransaction() {
EntityManager em = createContainerManagedEntityManager();
doInstantiateAndSave(em);
endTransaction();
//assertFalse(em.getTransaction().isActive());
startNewTransaction();
// Call any method: should cause automatic tx invocation
assertFalse(em.contains(new Person()));
//assertTrue(em.getTransaction().isActive());
doInstantiateAndSave(em);
setComplete();
endTransaction(); // Should rollback
assertEquals("Tx must have committed back", 1, countRowsInTable(em, "person"));
// Now clean up the database
deleteFromTables("person");
}
@Test
public void testRollbackOccurs() {
EntityManager em = createContainerManagedEntityManager();
doInstantiateAndSave(em);
endTransaction(); // Should rollback
assertEquals("Tx must have been rolled back", 0, countRowsInTable(em, "person"));
}
@Test
public void testCommitOccurs() {
EntityManager em = createContainerManagedEntityManager();
doInstantiateAndSave(em);
setComplete();
endTransaction(); // Should rollback
assertEquals("Tx must have committed back", 1, countRowsInTable(em, "person"));
// Now clean up the database
deleteFromTables("person");
}
}