CODEWITHSUNDEEP
unit-testingspring-bootspring-data-jpa
Ian
Ian

Reputation: 1717

@DataJpaTest not loading required classes

I'm attempting to set up some Spring Boot JPA tests using:

package biz.ianw.coindatabase.test;

@RunWith(SpringRunner.class)
@DataJpaTest     
public class DbTests {
  @Test
  public void test1() { ... }
}

I have a service class:

package biz.ianw.coindatabase.database;

//@Service
@Repository
@Transactional(readOnly=false)
public class CoinDbService { ... }

and an application:

package biz.ianw.coindatabase;

@SpringBootApplication
@Slf4j
@Configuration
@EnableEncryptableProperties
public class Main {
  @Autowired
  CoinDbService dbService;
... }

Starting the test gives the error:

Field dbService in biz.ianw.coindatabase.Main required a bean of type 'biz.ianw.coindatabase.database.CoinDbService' that could not be found.

This is, I assumed, something to do with the type of beans @DataJpaTest loads during startup:

@DataJpaTest can be used if you want to test JPA applications. By default it will configure an in-memory embedded database, scan for @Entity classes and configure Spring Data JPA repositories. Regular @Component beans will not be loaded into the ApplicationContext.

I'm not quite sure why @Service classes should be considered as not required for JPA testing, but I tried to force the matter by annotating it as @Repository instead, but to no avail.

I can manually load the class with @Import(...) but it seems a tad hooky. Is there a better way to tell DataJpaTest what I need for testing?

Upvotes: 0

Views: 3565

Answers (1)

Luay Abdulraheem
Luay Abdulraheem

Reputation: 759

I am quoting from DataJpaTest documentation where you can find the answer to your question.

Annotation that can be used in combination with @RunWith(SpringRunner.class) for a typical JPA test. Can be used when a test focuses only on JPA components.

Using this annotation will disable full auto-configuration and instead apply only configuration relevant to JPA tests.

By default, tests annotated with @DataJpaTest will use an embedded in-memory database (replacing any explicit or usually auto-configured DataSource). The @AutoConfigureTestDatabase annotation can be used to override these settings.

If you are looking to load your full application configuration, but use an embedded database, you should consider @SpringBootTest combined with @AutoConfigureTestDatabase rather than this annotation.

Upvotes: 2

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