org.springframework.beans.factory.UnsatisfiedDependencyException

[Mentor Alb]

Hi to everyone,
I'm trying to test my Spring Boot Application's DAO layer with embedded database but when I run it unfortunately it throws org.springframework.beans.factory.UnsatisfiedDependencyException as follows:

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'com.onlinedev.project.core.dao.CustomerDAOIT': 
Unsatisfied dependency expressed through field 'customerDao'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: 
No qualifying bean of type 'com.onlinedev.project.core.dao.CustomerDao' available: expected at least 1 bean which qualifies as autowire candidate. 
Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

I have this test class:

@RunWith(SpringJUnit4ClassRunner.class)
@DataJpaTest
@AutoConfigureTestDatabase(replace = AutoConfigureTestDatabase.Replace.NONE)
public class CustomerDAOIT {
    
    @Autowired
    private CustomerDao customerDao;

    private static final String ID = RandomStringUtils.randomAlphabetic(50);
    private static final String NAME = RandomStringUtils.randomAlphabetic(20);

    private Customer customer;

   @Before
    public void onStartUp() {
        customer = new Customer();
        customer.setId(ID);
        customer.setName(NAME);
    }

   @Test
    public void testSave() {
        customerDao.save(customer);
        assertNotNull(customer.getId());
    }

   @Test
    public void testFindOne() {
        customerDao.save(customer);
        assertNotNull(customer.getId());

        Customer savedEntity = customerDao.findOne(customer.getId());

        assertNotNull(savedEntity);
        assertEquals(customer, savedEntity);
    }
}

public interface CustomerDao extends ElasticsearchCrudRepository<Customer, String> {}

@SpringBootApplication
@EnableJpaRepositories(basePackages = {"com.onlinedev.project.core.dao"})
public class ProjectApplication {

    public static void main(String[] args) {
        SpringApplication.run(ProjectApplication.class, args);
    }
}

application.yml

spring:
  datasource:
    url: jdbc:h2:mem:testdb;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE
    driver-class-name: org.h2.Driver
    platform: h2

Your help in this matter is greatly appreciated!

[Ankit Garg]

I haven't worked on Spring Boot, but don't you need to mark your DAO as @Repository or something which tells Spring that it is a bean it needs to load?