CrudRepository MockBean not injected into Component being tested #6541
Description
Testing this class
@Component
public class DemoComponent {
@Autowired
private DemoRepository demoRepository;
public DemoEntity getByAttribute(String attribute) {
return demoRepository.findFirstByAttribute(attribute);
}
}
where DemoRepository is a Spring Data JPA style repository
@Repository
public interface DemoRepository extends CrudRepository<DemoEntity, Long> {
DemoEntity findFirstByAttribute(String attribute);
}
This is the test
@RunWith(SpringRunner.class)
@SpringBootTest
public class DemoComponentTest {
@MockBean
private DemoRepository demoRepository;
@Autowired
private DemoComponent demoComponent;
@Test
public void testGetDemo_byAttribute() {
String attribute = "test";
when(demoRepository.findFirstByAttribute(attribute)).thenReturn(new DemoEntity(attribute));
demoComponent.getByAttribute(attribute);
assertNotNull(demoComponent.getByAttribute(attribute));
}
}
The test fails, because the demoRepository mock isn't being injected into demoComponent during the test.
FWIW I figured out that if I remove the CrudRepository superclass from DemoRepository the test passes so it could be related to that