Not finding repository class in spring integration test - spring-data-jpa

Question

The methods : findAll(),save(O o), findOne(long id) of interface
Repository is not found in my spring jpa integration test.
package source;
import static org.junit.Assert.*;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringRunner;
import category.IntegrationTest;
import domain.BankAccount;
import presentation.MessageContext;
import repository.BankAccountRepository;
#RunWith(SpringRunner.class)
#Category(IntegrationTest.class)
#DataJpaTest
public class BankAccountTest {
#Autowired
private BankAccountRepository repository;
#Test
public void should_find_no_customers_if_repository_is_empty() {
Iterable<BankAccount> accounts = repository.findAll();
assertNull(accounts);
}
#Test
public void shuldCreateBankAccount() {
BankAccount accounts = new BankAccount(100);
repository.save(accounts);
BankAccount accountr = repository.findOne(1l);
assertNotNull(accountr);
}
}
The repository interface looks like this
package repository;
import org.springframework.data.repository.Repository;
import domain.BankAccount;
public interface BankAccountRepository extends Repository<BankAccount, Long> {}
I have also implemeneted a configuration file
package repository;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
#Configuration
#EnableJpaRepositories
public class PersistentContext {}
the classes is placed like this
Component structure
What must i to compile the code without errors?

Answer 1

interface Repository is empty interface ,it's common interface for spring data repositories . There is no any method , see Repository API .
If you need method findAll(),save(O o), findOne(long id) you need use CrudRepository - it's sub interface for interface Repository , or you can use JpaRepository - it's extension of CrudRepository.