Testes de DAO´s com Spring, Hibernate, Vraptor e JUnit

Olá Galera,
estou tentando executar testes unitários com o JUnit em um projeto que usa Vraptor, spring e hibernate. A seguir a forma como estruturei o código:

[code]public class CargoDaoTest extends GenericDaoTest{

@Autowired  
CargoDao cargoDao;
@Autowired  
EmpresaDao empresaDao;

@Test
public void save() {
	Empresa empresa = new Empresa();
	empresa.setAtiva(true);
	empresa.setNome("EmpresaTest");
	empresa.setNumero("88888888");
	empresa.setBairro("Messejana");
	empresa.setCidade("Fort");
	empresa.setCep("68888888");
	empresa.setUf("ce");
	empresa.setTelefone("8888888888");
	empresaDao.save(empresa);
	
	Cargo cargo = new Cargo();
	cargo.setNome("Teste");
	cargo.setEmpresa(empresa);
	cargoDao.save(cargo);
	
    assertEquals(cargo, cargoDao.load(cargo.getId()));

}

}[/code]

[code]@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={
“file:./WebRoot/WEB-INF/config/spring/applicationContext-test.xml”
})
public abstract class GenericDaoTest {
@Autowired
Session session;

@Before
public void setUp(){
	session.getTransaction().begin();
	session.flush();
}

@After
public void tearDown(){
	session.getTransaction().rollback();
}

}[/code]

[code]public interface GenericDao {
public boolean save(Object object);
public boolean update(Object object);
public void delete(Object object);

}[/code]

[code]public class GenericDaoImpl implements GenericDao {

@Autowired
private Session session;

public Session getSession() {
	return session;
}

public boolean save(Object object) {
	try {
		getSession().save(object);
		getSession().flush();
		return true;
	} catch (Exception e) {
		return false;
	}
}
	
public boolean update(Object object) {
	try {
		getSession().merge(object);
		return true;
	} catch (Exception e) {
		return false;
	}
}

public void delete(Object object) {
	try {
		getSession().delete(object);
		getSession().flush();
	} catch (ConstraintViolationException e) {
		throw e;
	}
}

}[/code]

Arquivo de configuração(applicationContext-test.xml).

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
						http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
						http://www.springframework.org/schema/context 
						http://www.springframework.org/schema/context/spring-context-3.0.xsd 
						http://www.springframework.org/schema/tx 
						http://www.springframework.org/schema/tx/spring-tx-3.0.xsd 
						http://www.springframework.org/schema/aop 
						http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">

	<context:annotation-config />
	

	<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
		<property name="driverClassName" value="org.postgresql.Driver" />
		<property name="url" value="jdbc:postgresql://localhost:5432/intranet_test" />
		<property name="username" value="postgres" />
		<property name="password" value="root" />
	</bean>

	<!-- Configuração do Aspecto das transações. -->

	<bean id="sessionFactory"
		class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
		<property name="dataSource" ref="dataSource"></property>
		<property name="configLocation" value="classpath:hibernate_test.cfg.xml" />
		<property name="packagesToScan" value="meu.pacote" />     
	</bean>

	<bean id="transactionManager"
		class="org.springframework.orm.hibernate3.HibernateTransactionManager">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>

	<tx:annotation-driven transaction-manager="transactionManager" />

	

	
</beans>

Porém quando executo, aparece o seguinte erro:

org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘sessionFactory’ defined in URL [file:WebRoot/WEB-INF/config/spring/applicationContext-test.xml]: Invocation of init method failed; nested exception is org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.service.jdbc.connections.spi.ConnectionProvider]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1420)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:563)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:96)
at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:44)
at org.springframework.test.context.TestContext.buildApplicationContext(TestContext.java:198)
at org.springframework.test.context.TestContext.getApplicationContext(TestContext.java:233)
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:126)
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:85)
at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:231)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:95)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.invokeTestMethod(SpringJUnit4ClassRunner.java:139)
at org.junit.internal.runners.JUnit4ClassRunner.runMethods(JUnit4ClassRunner.java:51)
at org.junit.internal.runners.JUnit4ClassRunner$1.run(JUnit4ClassRunner.java:44)
at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:27)
at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:37)
at org.junit.internal.runners.JUnit4ClassRunner.run(JUnit4ClassRunner.java:42)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.service.jdbc.connections.spi.ConnectionProvider]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:186)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:150)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:131)
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.buildJdbcConnectionAccess(JdbcServicesImpl.java:223)
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:89)
at org.hibernate.service.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:75)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:159)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:131)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:71)
at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2277)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2273)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1742)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1782)
at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:860)
at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:779)
at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:211)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1477)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1417)
… 29 more
Caused by: org.hibernate.HibernateException: Could not instantiate connection provider [org.springframework.orm.hibernate3.LocalDataSourceConnectionProvider]
at org.hibernate.service.jdbc.connections.internal.ConnectionProviderInitiator.instantiateExplicitConnectionProvider(ConnectionProviderInitiator.java:192)
at org.hibernate.service.jdbc.connections.internal.ConnectionProviderInitiator.initiateService(ConnectionProviderInitiator.java:114)
at org.hibernate.service.jdbc.connections.internal.ConnectionProviderInitiator.initiateService(ConnectionProviderInitiator.java:54)
at org.hibernate.service.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:69)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:176)
… 46 more
Caused by: java.lang.ClassCastException: org.springframework.orm.hibernate3.LocalDataSourceConnectionProvider cannot be cast to org.hibernate.service.jdbc.connections.spi.ConnectionProvider
at org.hibernate.service.jdbc.connections.internal.ConnectionProviderInitiator.instantiateExplicitConnectionProvider(ConnectionProviderInitiator.java:189)
… 50 more

Alguém saberia me dizer qual o motivo de tal erro?

Você deveria injetar a SessinFactory e não a Session. O bean que existe em “applicationContext-test.xml” é SessionFactory, a Session não é bean.

@Autowired  
private SessionFactory sessionFactory;

Vlw romarcio, esse era um dos motivos. Havia também um problema de dependências de jars, pois estou usando o spring 3 e o hibernate 4.