Problem inserting entities in database with #BeforeAll - spring-boot

Question

i'm trying to insert some entities in my H2 database to run some unit tests, for this im using a setup method decorated with the #BeforeAll annotation like so :
#RunWith(SpringRunner.class)
#DataJpaTest
public class ItemRepositoryTest {
#Autowired
private ItemRepository itemRepo;
#Autowired
private CategoryRepository catRepo;
#BeforeAll
public static void setup(#Autowired ItemRepository itemRepo) {
Category cat_0 = new Category(0L, "category_0");
Category cat_1 = new Category(1L, "category_1");
Category cat_2 = new Category(2L, "category_2");
Item item_0 = new Item(0L, "item_0", "...", 7.99, "0000000000000", "imgUrl", Set.of(cat_0, cat_1));
Item item_1 = new Item(1L, "item_1", "...", 8.99, "1111111111111", "imgUrl", Set.of(cat_2));
Item item_2 = new Item(2L, "item_2", "...", 9.99, "2222222222222", "imgUrl", Set.of(cat_0, cat_1, cat_2));
itemRepo.saveAll(List.of(item_0, item_1, item_2));
}
#AfterAll
public static void clean(#Autowired ItemRepository itemRepo, #Autowired CategoryRepository catRepo) {
itemRepo.deleteAll();
catRepo.deleteAll();
}
#Test
public void items_should_have_been_saved() {
List<Item> items = itemRepo.findAll();
assertThat(items).hasSize(3);
}
}
The 'items_should_have_been_saved' Test fails (Expected size: 3 but was: 0), it seems my 'setup' method does not work, can anybody tell me what im doing wrong ? (I'm using SpringBoot 2.5.0)
src/test/resources/aplication.properties:
#----------------------------------------------------------------------------------
# CONFIG H2
#----------------------------------------------------------------------------------
spring.h2.console.enabled=true
spring.datasource.url=jdbc:h2:mem:testdb;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=TRUE;IGNORECASE=TRUE;
spring.datasource.driverClassName=org.h2.Driver
spring.datasource.username=sa
spring.datasource.password=sa
spring.jpa.show-sql=true
spring.jpa.generate-ddl=true
spring.jpa.hibernate.ddl-auto=create-drop
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.H2Dialect
spring.jpa.defer-datasource-initialization=true
#----------------------------------------------------------------------------------
server.error.include-message=always
spring.sql.init.platform=h2
pom.xml:
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
<dependency>
<groupId>net.kaczmarzyk</groupId>
<artifactId>specification-arg-resolver</artifactId>
<version>2.6.2</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-core</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>