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tomix26 avatar tomix26 commented on July 28, 2024 1

The problem is that you call the embeddedPostgres().getPostgresDatabase() method multiple times. Each call returns a new instance of the data source and the transaction management cannot work properly. In the case of the h2 database you are using a singleton bean and that's why it works.

However, you should not create the instance yourself, but use @AutoConfigureEmbeddedDatabase annotation instead. So the test class should look something like this:

@RunWith(SpringRunner.class)
@Transactional
@ContextConfiguration
@AutoConfigureEmbeddedDatabase(beanName = "dataSource")
@FixMethodOrder(MethodSorters.NAME_ASCENDING)
public class JdbcTest {

    @Configuration
    static class Config {

        @Bean
        public JdbcTemplate jdbcTemplate(DataSource dataSource) {
            return new JdbcTemplate(dataSource);
        }

        @Bean
        public PlatformTransactionManager platformTransactionManager(DataSource dataSource) {
            return new DataSourceTransactionManager(dataSource);
        }
    }

    @Autowired
    private JdbcTemplate jdbc;

    @Test
    @Rollback(value = false)
    public void test1() {
        jdbc.execute("create table test_table (test_field integer)");
        jdbc.execute("insert into test_table values(1)");
        List<Integer> results = jdbc.queryForList("select test_field from test_table", Integer.class);
        Assert.assertFalse(CollectionUtils.isEmpty(results));
        Assert.assertEquals(1, results.size());
    }

    @Test
    @Rollback
    public void test2() {
        jdbc.execute("insert into test_table values(2)");
        List<Integer> results = jdbc.queryForList("select test_field from test_table", Integer.class);
        Assert.assertFalse(CollectionUtils.isEmpty(results));
        Assert.assertEquals(2, results.size());
    }

    @Test
    public void zTest() {
        List<Integer> results = jdbc.queryForList("select test_field from test_table", Integer.class);
        Assert.assertFalse(CollectionUtils.isEmpty(results));
        Assert.assertEquals(1, results.size());
    }
}

from embedded-database-spring-test.

oleksandr-abasov avatar oleksandr-abasov commented on July 28, 2024

@tomix26, thank you so much for the explanation! Sorry for bothering.
Best regards,

from embedded-database-spring-test.

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