I can't test on a test database during my integration tests - spring

Question

I would like to do some integration tests. These tests would then use a h2 test database, which would always be deleted afterwards.
Here is my test:
#SpringBootTest()
public class PostePomponServiceIT{
#Autowired
private PostePomponService postePomponService;
#Autowired
private PostePomponRepository postePomponRepository;
#Test
public void addPostePompon_Ok() throws BadRequestException {
PostePomponForm postePomponForm = new PostePomponForm();
postePomponService.add(postePomponForm);
assertEquals(1[![enter image description here][1]][1], postePomponRepository.findAll().size());
}
}
and my main test class:
package com.MailleCoTech.SuiviProduction;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.context.annotation.PropertySource;
#SpringBootTest(classes = SuiviProductionApplication.class)
#PropertySource("application-test.properties")
class SuiviProductionApplicationTests {
#Test
void contextLoads() {
}
}
My test-application.properties
spring.datasource.url=jdbc:h2:mem:testdb
spring.datasource.driverClassName=org.h2.Driver
spring.datasource.username=sa
spring.datasource.password=password
spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
and how my folder is structured:
My error is : com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

Answer 1

Remove annotation #SpringBootTest from test case. You have #DataJpaTest which does everything #SpringBootTest + some extra stuff(you can check documentation for more details).

Answer 2

The problem here is that you are using an empty #SpringBootTest.
but you also need to say the test which configuration classes you want to execute. I mean you say to the test "please execute a spring test", but you are not providing any spring application to it.
#SpringBootTest(classes={YourJavaClassWithStaticMain.class})
is what you want to do