Transaction rollback on Spring JDBC tests

Question

I'm trying to get JDBC transaction rollback when using Spring-test without success. When I run the following the SQL update is always committed.

package my.dao.impl;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.annotation.Rollback;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.TestExecutionListeners;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.support.DependencyInjectionTestExecutionListener;
import org.springframework.test.context.transaction.TransactionConfiguration;

import javax.sql.DataSource;
import java.sql.Connection;
import java.sql.Statement;

@RunWith(SpringJUnit4ClassRunner.class)
@TestExecutionListeners({DependencyInjectionTestExecutionListener.class})
@ContextConfiguration(locations={"classpath:ApplicationContext-test-DAOs.xml"})
@TransactionConfiguration(defaultRollback = true)
public class ConfirmationMatchingDAOImplTest {

    @Autowired
    private DataSource dataSource;

    @Test
    public void shouldInsertSomething() throws Exception {
        final Connection connection = dataSource.getConnection();
        final Statement statement = connection.createStatement();
        statement.executeUpdate("insert into TEST_INSERT values (1, 'hello')");
        statement.close();
        connection.close();
    }
}

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
    <property name="driverClassName" value="com.microsoft.sqlserver.jdbc.SQLServerDriver"/>
    <property name="url" value="jdbc:sqlserver://makeitfunky:1490;databaseName=fonzie"/>
    <property name="username" value="ralph"/>
    <property name="password" value="p0n1es_R_kew1"/>
</bean>

What am I doing wrong?

Additionally, am I using too many annotations? Can I make it a bit cleaner?

Answer 1

If you do not explicitly configure test execution listeners using the @TestExecutionListeners annotation, Spring configures by default DependencyInjectionTestExecutionListener, DirtiesContextTestExecutionListener, and TransactionalTestExecutionListener. TransactionalTestExecutionListener provides transactional test execution with default rollback semantics. By explicitly declaring @TestExecutionListeners on your test class and omitting TransactionalTestExecutionListener from the listeners list, you are disabling transactional support.

You must also add the @Transactional annotation at the class or method level.

You must also use DataSourceUtils to get a transactional Connection managed by DataSourceTransactionManager.

Answer 2

If you are using the non-xml method this works nicely since about version 3.1

@Transactional
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = {TestDbConfig.class, SomeService.class})
public class SomeTest {

@Inject
private SomeService someService;

@PersistenceContext
private EntityManager em;

@Test
public void someTest() {}

The test config then takes this form. Notice @EnableTransactionManagement and the fact you can declare a global test defaultRollback. This becomes particularly useful on a large projects.

@Configuration
@PropertySource(value = "classpath:app.properties")
@EnableTransactionManagement
@TransactionConfiguration(defaultRollback = true)
public class TestDbConfig {

//read the parameters from properties
@Value("${hibernate.dialect:unset}")
private String hibernateDialect;

@Bean
public static PropertySourcesPlaceholderConfigurer propertyPlaceholderConfigurer() {
    return new PropertySourcesPlaceholderConfigurer();
}

@Bean
public PlatformTransactionManager transactionManager() {
    //for example
    JpaTransactionManager transactionManager = new JpaTransactionManager();
    transactionManager.setEntityManagerFactory(entityManagerFactoryBean().getObject());
    return transactionManager;
}

@Bean
LocalContainerEntityManagerFactoryBean entityManagerFactoryBean() {
    //set the datasource
    //set the JpaVendorAdapter
    //set the packagesToScan
    return some sort of LocalContainerEntityManagerFactoryBean;
}

@Bean
DataSource dataSource() {
    return dataSource from jndi or a DriverManagerDataSource();
}

}

Answer 3

add this annotation, and no roll back will be in test cases:

 @TransactionConfiguration(defaultRollback=false)

My annotation looks like this:

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "/../applicationContext.xml" })
@TransactionConfiguration(defaultRollback=true)
public class DBCreatorTest {

Answer 4

Could it be because you do not have an @Transactional for the test method?

Answer 5

When using the @Transactional annotation in Spring, you must add the following line to your Spring configuration file:

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

The transaction-manager property holds a reference to the transaction manager bean defined in the Spring configuration file. This code tells Spring to use the @Transaction annotation when applying the transaction interceptor. Without it, the @Transactional annotation is ignored, resulting in no transaction being used in your code.

Source on IBM website

Answer 6

additional informations :

for this line

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

The default value of the transaction-manager attribute is "transactionManager". This attribute is required only if the bean id/name of the transactionManager is not 'transactionManager'. So you just have to set :

<tx:annotation-driven />

Answer 7

You need to add @Transactional at class level. Something like this :

@TransactionConfiguration(transactionManager = "txManager",defaultRollback = true)
@Transactional

Here txManager is an instance or bean id of Transaction manager from application context.

<!-- Transaction Manager -->
    <bean id="txManager"
          class="org.springframework.orm.hibernate3.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>

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

Answer 8

After trying out a lot of the above combinations, the following setup worked for me with full rollback after the test is successful.

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {"classpath:datasource-context-test.xml"})
@TransactionConfiguration(defaultRollback = true)
@Transactional
public class DataAccessTest 
{


    @Test
    public void testSaveRecords()
    { ... }
}