Rollback transaction after Test

Question

First of all  I ve found a lot of threads on StackOverflow about this  but none of them really helped me  so sorry to ask possibly duplicate question   I m running JUnit tests using spring-test  my code looks like this   RunWith SpringJUnit4ClassRunner class     ContextConfiguration locations       public class StudentSystemTest         Autowired     private StudentSystem studentSystem        Before     public void initTest            set up the database  create basic structure for testing             Test     public void test1                             My problem is that I want my tests to NOT influence other tests  So I d like to create something like rollback for each test  I ve searched a lot for this  but I ve found nothing so far  I m using Hibernate and MySql for this

User · Accepted Answer

Just add  Transactional annotation on top of your test    RunWith SpringJUnit4ClassRunner class     ContextConfiguration locations     testContext xml     Transactional public class StudentSystemTest     By default Spring will start a new transaction surrounding your test method and  Before  After callbacks  rolling back at the end  It works by default  it s enough to have some transaction manager in the context   From  10 3 5 4 Transaction management  bold mine       In the TestContext framework  transactions are managed by the TransactionalTestExecutionListener  Note that TransactionalTestExecutionListener is configured by default  even if you do not explicitly declare  TestExecutionListeners on your test class  To enable support for transactions  however  you must provide a PlatformTransactionManager bean in the application context loaded by  ContextConfiguration semantics  In addition  you must declare  Transactional either at the class or method level for your tests

User · Answer

The answers mentioning adding  Transactional are correct  but for simplicity you could just have your test class extends AbstractTransactionalJUnit4SpringContextTests

User · Answer

I know  I am tooooo late to post an answer  but hoping that it might help someone  Plus  I just solved this issue I had with my tests  This is what I had in my test   My test class   RunWith SpringJUnit4ClassRunner class   ContextConfiguration locations      path-to-context      Transactional public class MyIntegrationTest    Context xml   lt bean id  dataSource  class  org apache commons dbcp BasicDataSource  gt      lt property name  driverClassName  value    jdbc driverClassName     gt      lt property name  url  value    jdbc url     gt      lt property name  username  value    jdbc username     gt      lt property name  password  value    jdbc password     gt   lt  bean gt    I still had the problem that  the database was not being cleaned up automatically   Issue was resolved when I added following property to BasicDataSource   lt property name  defaultAutoCommit  value  false    gt    Hope it helps

User · Answer

You need to run your test with a Spring context and a transaction manager  e g      RunWith SpringJUnit4ClassRunner class     ContextConfiguration locations      your-applicationContext xml     TransactionConfiguration transactionManager  txMgr   public class StudentSystemTest          Test      public void testTransactionalService                 test transactional service               Test       Transactional      public void testNonTransactionalService                 test non-transactional service            See chapter 3 5 8  Transaction Management of the Spring reference for further details

User · Answer

You can disable the Rollback    TransactionConfiguration defaultRollback   false    Example    RunWith SpringJUnit4ClassRunner class   SpringApplicationConfiguration classes   Application class   Transactional  TransactionConfiguration defaultRollback   false  public class Test        PersistenceContext     private EntityManager em        org junit Test     public void menge             PersistentObject object   new PersistentObject            em persist object           em flush

User · Answer

Aside  attempt to amend Tomasz Nurkiewicz s answer was rejected      This edit does not make the post even a little bit easier to read  easier to find  more accurate or more accessible  Changes are either completely superfluous or actively harm readability               Correct and permanent link to the relevant section of documentation about integration testing      To enable support for transactions  you must configure a PlatformTransactionManager bean in the ApplicationContext that is loaded via  ContextConfiguration semantics      Configuration  PropertySource  application properties   public class Persistence        Autowired     Environment env        Bean     DataSource dataSource             return new DriverManagerDataSource                  env getProperty  datasource url                    env getProperty  datasource user                    env getProperty  datasource password                          Bean     PlatformTransactionManager transactionManager             return new DataSourceTransactionManager dataSource                  In addition  you must declare Spring   s  Transactional annotation either at the class or method level for your tests      RunWith SpringJUnit4ClassRunner class   ContextConfiguration classes    Persistence class  SomeRepository class    Transactional public class SomeRepositoryTest              Annotating a test method with  Transactional causes the test to be run within a transaction that will  by default  be automatically rolled back after completion of the test  If a test class is annotated with  Transactional  each test method within that class hierarchy will be run within a transaction

User · Answer

In addition to adding  Transactional on  Test method  you also need to add  Rollback false

[java] Rollback transaction after @Test

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